:root {
  --primary-gradient: linear-gradient(135deg, #2b5876, #4e4376);
  --primary-dark: #2b5876;
  --primary-light: #4e4376;
  --primary-alpha: rgba(43, 88, 118, 0.1);
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-blur: blur(20px);
  --text-light: #ffffff;
  --text-dark: #2c3e50;
  --text-muted: #666;
  --text-primary: #2b5876;
  --bg-light: #f8f9fa;
  --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  --white: #ffffff;
  --shadow-light: rgba(0, 0, 0, 0.1);
  --shadow-medium: rgba(0, 0, 0, 0.15);
  --shadow-heavy: rgba(0, 0, 0, 0.25);
  --shadow-primary: 0 4px 15px rgba(43, 88, 118, 0.2);
  --navbar-height: 70px;
  --border-radius: 16px;
  --border-radius-lg: 20px;
  --border-radius-xl: 24px;
  --transition: all 0.3s ease;
  --transition-fast: all 0.2s ease;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes heroFadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  33% {
    transform: translateY(-15px) rotate(1deg);
  }
  66% {
    transform: translateY(-8px) rotate(-1deg);
  }
}
@keyframes shimmer {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}
@keyframes modalSlide {
  from {
    opacity: 0;
    transform: translateY(-50px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@keyframes modalBackdrop {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes bookmarkPulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.3);
  }
  100% {
    transform: scale(1.2);
  }
}
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 12px 40px rgba(255, 107, 107, 0.4);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes titleUnderline {
  from {
    scale: 0;
  }
  to {
    scale: 1;
  }
}
@keyframes sectionPattern {
  0% {
    transform: translateX(0) translateY(0);
  }
  25% {
    transform: translateX(20px) translateY(-10px);
  }
  50% {
    transform: translateX(0) translateY(-20px);
  }
  75% {
    transform: translateX(-20px) translateY(-10px);
  }
  100% {
    transform: translateX(0) translateY(0);
  }
}
@keyframes footerPattern {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(60px);
  }
}
@keyframes messageSlideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
@keyframes overlayShift {
  0% {
    transform: translateX(0) translateY(0);
  }
  100% {
    transform: translateX(56px) translateY(100px);
  }
}
@keyframes progressShimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}
@keyframes skeletonLoading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}
* {
  box-sizing: border-box;
}
body {
  font-family: "Poppins", sans-serif;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--bg-gradient);
  line-height: 1.6;
  font-weight: 400;
  margin: 0;
  padding: 0;
  padding-top: var(--navbar-height);
  color: var(--text-dark);
}
::selection {
  background: rgba(43, 88, 118, 0.2);
  color: var(--text-dark);
}
::-moz-selection {
  background: rgba(43, 88, 118, 0.2);
  color: var(--text-dark);
}
a {
  color: var(--primary-dark);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--primary-light);
  text-decoration: underline;
}
.keyboard-navigation *:focus-visible {
  outline: 2px solid var(--primary-dark);
  outline-offset: 2px;
  border-radius: 4px;
}
*:focus:not(:focus-visible) {
  outline: none !important;
  box-shadow: none !important;
}
html {
  scroll-behavior: smooth;
}
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-light);
}
::-webkit-scrollbar-thumb {
  background: var(--primary-gradient);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #4e4376, #2b5876);
}
.glass-effect {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
}
.gradient-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: rgba(0, 0, 0, 0);
  background-clip: text;
}
.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: rgba(0, 0, 0, 0);
  background-clip: text;
  font-weight: 700;
}
.text-shadow {
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.text-glow {
  text-shadow: 0 0 20px rgba(43, 88, 118, 0.5);
}
.hover-lift {
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
  will-change: transform;
}
.hover-lift:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px var(--shadow-light);
}
.loading {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid hsla(0, 0%, 100%, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 0.8s linear infinite;
}
.animate-spin {
  animation: spin 1s linear infinite;
}
.animate-fade-in {
  animation: fadeIn 0.8s ease-out forwards;
}
.animate-fade-in-delayed {
  animation: fadeIn 0.8s ease-out 0.3s both;
}
.scroll-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
  will-change: transform, opacity;
}
.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.hidden {
  display: none !important;
}
.text-center {
  text-align: center;
}
.mt-2 {
  margin-top: 2rem;
}
.mb-2 {
  margin-bottom: 2rem;
}
.w-100 {
  width: 100%;
}
.feature-card,
.btn,
.feature-icon,
.navbar-brand,
.hero-title,
.gradient-orb {
  will-change: transform;
}
.navbar,
.feature-card,
.btn,
.modal-content,
.chat-container {
  transform: translateZ(0);
  backface-visibility: hidden;
  perspective: 1000px;
}
.navbar {
  background: hsla(0, 0%, 100%, 0.95);
  backdrop-filter: blur(20px);
  padding: 0.8rem 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  border-bottom: 1px solid hsla(0, 0%, 100%, 0.2);
  box-shadow: 0 2px 20px var(--shadow-light);
  transition: var(--transition-fast);
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  transform: translateZ(0);
}
.navbar.scrolled {
  background: hsla(0, 0%, 100%, 0.98);
  backdrop-filter: blur(25px);
  box-shadow: 0 4px 30px var(--shadow-medium);
}
.navbar-brand {
  font-weight: 900;
  font-size: 1.6rem;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: rgba(0, 0, 0, 0);
  background-clip: text;
  transition: var(--transition-fast);
  text-decoration: none;
  margin: 0;
  will-change: transform;
}
.navbar-brand:hover {
  transform: scale(1.02);
  text-decoration: none;
}
.nav-link,
.navbar-text {
  font-weight: 500;
  color: var(--primary-dark) !important;
  padding: 0.4rem 0.8rem !important;
  transition: var(--transition-fast);
  border-radius: 8px;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--primary-light) !important;
  background: var(--glass-bg);
  transform: translateY(-1px);
}
.navbar-text {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  border: 1px solid var(--glass-border);
  font-weight: 600;
  font-size: 0.9rem;
  margin-right: 0.5rem;
}
.dropdown-menu {
  background: hsla(0, 0%, 100%, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--border-radius);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  padding: 0.5rem 0;
  animation: fadeInUp 0.3s ease;
}
.dropdown-item {
  padding: 0.8rem 1.5rem;
  transition: var(--transition);
  color: var(--text-dark);
  font-weight: 500;
}
.dropdown-item:hover {
  background: var(--primary-alpha);
  color: var(--primary-dark);
  transform: translateX(5px);
}
.hero-section {
  position: relative;
  min-height: 100vh;
  background: var(--primary-gradient);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0;
}
.hero-section.compact {
  min-height: 60vh;
  padding: 5rem 0;
}
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1NiIgaGVpZ2h0PSIxMDAiPgo8cmVjdCB3aWR0aD0iNTYiIGhlaWdodD0iMTAwIiBmaWxsPSIjMjIyIj48L3JlY3Q+CjxwYXRoIGQ9Ik0yOCA2NkwwIDUwTDAgMTZMMjggMEw1NiAxNkw1NiA1MEwyOCA2NkwyOCAxMDAiIGZpbGw9Im5vbmUiIHN0cm9rZT0icmdiYSgyNTUsMjU5LDI1NSwwLjEpIiBzdHJva2Utd2lkdGg9IjIiPjwvcGF0aD4KPHBhdGggZD0iTTI4IDBMMjggMzRMMCA1MEwwIDg0TDI4IDEwMEw1NiA4NEw1NiA1MEwyOCAzNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJyZ2JhKDI1NSwyNTUsMjU1LDAuMSkiIHN0cm9rZS13aWR0aD0iMiI+PC9wYXRoPgo8L3N2Zz4=");
  opacity: 0.08;
  background-size: 60px;
  animation: overlayShift 25s linear infinite;
}
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  animation: float 12s ease-in-out infinite;
  will-change: transform;
}
.orb-1 {
  width: 400px;
  height: 400px;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.15),
    transparent 70%
  );
  top: -10%;
  left: -10%;
  animation-delay: 0s;
}
.orb-2 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(78, 67, 118, 0.2), transparent 70%);
  top: 50%;
  right: -10%;
  animation-delay: 4s;
}
.orb-3 {
  width: 250px;
  height: 250px;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.08),
    transparent 70%
  );
  bottom: -10%;
  left: 30%;
  animation-delay: 8s;
}
.hero-content {
  position: relative;
  z-index: 3;
  padding: 0 20px;
  max-width: 900px;
  text-align: center;
}
.hero-title,
.page-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  opacity: 0;
  animation: heroFadeInUp 1.2s cubic-bezier(0.25, 0.8, 0.25, 1) 0.5s forwards;
  letter-spacing: -0.02em;
  will-change: transform;
}
.hero-subtitle,
.page-subtitle {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 400;
  margin-bottom: 3rem;
  opacity: 0;
  animation: heroFadeInUp 1.2s cubic-bezier(0.25, 0.8, 0.25, 1) 0.8s forwards;
  color: hsla(0, 0%, 100%, 0.9);
}
.header-section,
.calculator-hero {
  min-height: 60vh;
  padding: 4rem 0;
  margin-bottom: 3rem;
  position: relative;
  background: var(--primary-gradient);
  color: var(--text-light);
  overflow: hidden;
}
.hero-wave,
.header-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  color: var(--bg-light);
  line-height: 0;
  transform: translateY(1px);
}
footer {
  background: var(--primary-gradient);
  padding: 3rem 0 2rem;
  color: var(--text-light);
  position: relative;
  overflow: hidden;
  margin-top: auto;
}
footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2MCIgaGVpZ2h0PSI2MCI+CjxyZWN0IHdpZHRoPSI2MCIgaGVpZ2h0PSI2MCIgZmlsbD0iIzRlNDM3NiI+PC9yZWN0Pgo8Y2lyY2xlIGN4PSIzMCIgY3k9IjMwIiByPSIyMCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJyZ2JhKDI1NSwyNTUsMjU1LDAuMSkiIHN0cm9rZS13aWR0aD0iMiI+PC9jaXJjbGU+CjxjaXJjbGUgY3g9IjMwIiBjeT0iMzAiIHI9IjEwIiBmaWxsPSJub25lIiBzdHJva2U9InJnYmEoMjU1LDI1NSwyNTUsMC4wNSkiIHN0cm9rZS13aWR0aD0iMSI+PC9jaXJjbGU+Cjwvc3ZnPg==");
  opacity: 0.05;
  animation: footerPattern 30s linear infinite;
}
footer .container-fluid {
  position: relative;
  z-index: 2;
  text-align: center;
}
footer p {
  margin: 0.8rem 0;
  opacity: 0.9;
  font-weight: 500;
  font-size: 1rem;
}
.social-icons {
  margin-top: 1.5rem;
}
.social-icons a {
  color: var(--text-light);
  margin: 0 12px;
  font-size: 1.4rem;
  transition: var(--transition);
  display: inline-block;
  padding: 12px;
  border-radius: 50%;
  background: hsla(0, 0%, 100%, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid hsla(0, 0%, 100%, 0.2);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}
.social-icons a::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.2),
    transparent 70%
  );
  transform: scale(0);
  transition: transform 0.3s ease;
}
.social-icons a:hover::before {
  transform: scale(1);
}
.social-icons a:hover {
  transform: translateY(-4px) scale(1.1);
  background: hsla(0, 0%, 100%, 0.2);
  box-shadow: 0 8px 25px hsla(0, 0%, 100%, 0.2);
  color: var(--text-light);
  text-decoration: none;
}
.features-section,
.categories-section,
.exam-section,
.info-section,
.questions-section {
  background: var(--bg-light);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.features-section::before,
.categories-section::before,
.exam-section::before,
.info-section::before,
.questions-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%232b5876' fill-opacity='0.02'%3E%3Ccircle cx='30' cy='30' r='25'/%3E%3Ccircle cx='30' cy='30' r='15'/%3E%3Ccircle cx='30' cy='30' r='5'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
  animation: sectionPattern 20s linear infinite;
}
.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  text-align: center;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: rgba(0, 0, 0, 0);
  background-clip: text;
  margin-bottom: 4rem;
  position: relative;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
  letter-spacing: -0.02em;
}
.section-title::after {
  content: "";
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--primary-gradient);
  border-radius: 2px;
  animation: titleUnderline 0.8s ease 0.5s forwards;
  transform-origin: center;
  scale: 0;
}
.section-title.revealed {
  opacity: 1;
  transform: translateY(0);
}
.section-title.revealed::after {
  scale: 1;
}
.section-content-area {
  background: hsla(0, 0%, 100%, 0.8);
  backdrop-filter: blur(20px);
  padding: 0;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition:
    max-height 0.6s cubic-bezier(0.25, 0.8, 0.25, 1),
    opacity 0.6s cubic-bezier(0.25, 0.8, 0.25, 1),
    padding 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
  border-radius: var(--border-radius);
  margin-top: 1rem;
}
.section-content-area.expanded {
  padding: 2rem;
  max-height: 2000px;
  opacity: 1;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(43, 88, 118, 0.1);
}
.calculator-grid,
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}
.drug-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  width: 100%;
  align-items: start;
}
.drug-card.expanded-card {
  grid-column: 1/-1;
  order: -1;
  transform: scale(1.02);
  box-shadow: 0 12px 40px rgba(43, 88, 118, 0.15);
}
.container-fluid {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}
.container {
  max-width: 1200px;
  padding: 0 20px;
}
.flex-1 {
  flex: 1;
}
.hero-overlay,
.login-overlay,
.register-overlay,
.mypage-overlay,
.header-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1NiIgaGVpZ2h0PSIxMDAiPgo8cmVjdCB3aWR0aD0iNTYiIGhlaWdodD0iMTAwIiBmaWxsPSIjMjIyIj48L3JlY3Q+CjxwYXRoIGQ9Ik0yOCA2NkwwIDUwTDAgMTZMMjggMEw1NiAxNkw1NiA1MEwyOCA2NkwyOCAxMDAiIGZpbGw9Im5vbmUiIHN0cm9rZT0icmdiYSgyNTUsMjU1LDI1NSwwLjEpIiBzdHJva2Utd2lkdGg9IjIiPjwvcGF0aD4KPHBhdGggZD0iTTI4IDBMMjggMzRMMCA1MEwwIDg0TDI4IDEwMEw1NiA4NEw1NiA1MEwyOCAzNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJyZ2JhKDI1NSwyNTUsMjU1LDAuMSkiIHN0cm9rZS13aWR0aD0iMiI+PC9wYXRoPgo8L3N2Zz4=");
  opacity: 0.08;
  animation: overlayShift 25s linear infinite;
}
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  text-align: center;
  position: relative;
  overflow: hidden;
  will-change: transform;
}
.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left 0.5s ease;
}
.btn:hover::before {
  left: 100%;
}
.btn-gradient,
.btn-primary,
.btn-feature,
.btn-calculate,
.btn-register,
.btn-login,
.btn-update,
.btn-start,
.btn-exam {
  background: var(--primary-gradient);
  color: var(--text-light);
  box-shadow: 0 3px 12px rgba(43, 88, 118, 0.3);
}
.btn-gradient:hover,
.btn-primary:hover,
.btn-feature:hover,
.btn-calculate:hover,
.btn-register:hover,
.btn-login:hover,
.btn-update:hover,
.btn-start:hover,
.btn-exam:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 25px rgba(43, 88, 118, 0.4);
  color: var(--text-light);
  text-decoration: none;
}
.btn-action-glass {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.5),
    rgba(255, 255, 255, 0.3)
  );
  backdrop-filter: blur(10px);
  padding: 0.6rem 1.2rem;
  border-radius: 25px;
  border: 1px solid rgba(43, 88, 118, 0.15);
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(43, 88, 118, 0.08);
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
}
.btn-action-glass::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.5),
    transparent
  );
  transition: left 0.4s ease;
}
.btn-action-glass:hover::before {
  left: 100%;
}
.btn-action-glass:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 8px 25px rgba(43, 88, 118, 0.15);
  border-color: rgba(43, 88, 118, 0.25);
  color: var(--primary-light);
}
.btn-action-glass i {
  font-size: 0.9rem;
}
.btn-action-glass.danger {
  background: linear-gradient(
    135deg,
    rgba(255, 107, 107, 0.1),
    rgba(255, 71, 87, 0.05)
  );
  border-color: rgba(255, 107, 107, 0.25);
  color: #c0392b;
}
.btn-action-glass.danger:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 8px 25px rgba(255, 107, 107, 0.2);
  border-color: rgba(255, 107, 107, 0.4);
  color: #e74c3c;
}
.btn-outline-gradient {
  background: rgba(0, 0, 0, 0);
  border: 2px solid var(--primary-dark);
  color: var(--primary-dark);
  position: relative;
  overflow: hidden;
}
.btn-outline-gradient:hover {
  background: var(--primary-gradient);
  color: var(--text-light);
  border-color: rgba(0, 0, 0, 0);
  transform: translateY(-3px) scale(1.02);
}
.btn-hero {
  background: hsla(0, 0%, 100%, 0.15);
  color: var(--text-light);
  padding: 1.2rem 2.5rem;
  border-radius: 30px;
  backdrop-filter: blur(20px);
  border: 1px solid hsla(0, 0%, 100%, 0.3);
  opacity: 0;
  animation: heroFadeInUp 1.2s cubic-bezier(0.25, 0.8, 0.25, 1) 1.2s forwards;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.btn-hero:hover {
  background: hsla(0, 0%, 100%, 0.25);
  transform: translateY(-3px) scale(1.05);
  color: var(--text-light);
  text-decoration: none;
  box-shadow: 0 8px 30px hsla(0, 0%, 100%, 0.2);
}
.btn-hero-danger {
  background: linear-gradient(135deg, #ff6b6b, #ff4757);
  box-shadow: 0 6px 20px rgba(255, 107, 107, 0.3);
  border: 1px solid hsla(0, 0%, 100%, 0.2);
}
.btn-hero-danger:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 35px rgba(255, 107, 107, 0.4);
  animation: pulse 1.5s infinite;
}
.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  border-radius: 20px;
}
.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
  border-radius: 30px;
}
.btn-xl {
  padding: 1.2rem 2.5rem;
  font-size: 1.2rem;
  border-radius: 35px;
}
.btn-calculate {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 1.2rem 2.8rem;
  border-radius: 50px;
  font-size: 1.1rem;
  z-index: 1000;
  display: flex;
  align-items: center;
  box-shadow: 0 10px 30px rgba(43, 88, 118, 0.3);
  backdrop-filter: blur(10px);
}
.btn-calculate:hover {
  box-shadow: 0 15px 40px rgba(43, 88, 118, 0.4);
  transform: translateY(-3px) scale(1.05);
}
.btn-calculate i {
  margin-left: 0.75rem;
  transition: transform 0.3s ease;
}
.btn-calculate:hover i {
  transform: translateX(8px) scale(1.1);
}
.btn:disabled,
.btn.disabled {
  background: linear-gradient(135deg, #dee2e6, #e9ecef);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
  color: #6c757d;
  opacity: 0.6;
}
.btn:disabled:hover,
.btn.disabled:hover {
  transform: none;
  box-shadow: none;
}
.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(43, 88, 118, 0.3);
}
.btn.active,
.btn:active {
  background-color: var(--primary-dark) !important;
  border-color: var(--primary-dark) !important;
  color: var(--text-light) !important;
  transform: scale(0.98);
}
.fab-menu {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  z-index: 1000;
}
.fab-main {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: var(--text-light);
  border: none;
  box-shadow: 0 8px 30px rgba(43, 88, 118, 0.3);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.fab-main:hover {
  transform: scale(1.1) rotate(90deg);
  box-shadow: 0 12px 40px rgba(43, 88, 118, 0.4);
}
.card,
.feature-card,
.category-card,
.exam-card,
.info-card,
.calculator-card,
.question-card,
.guideline-card,
.drug-card {
  background: hsla(0, 0%, 100%, 0.95);
  backdrop-filter: blur(20px);
  border-radius: var(--border-radius);
  padding: 1.8rem;
  height: 100%;
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  will-change: transform;
  transform: translateZ(0);
}
.feature-card::before,
.category-card::before,
.exam-card::before,
.info-card::before,
.calculator-card::before,
.question-card::before,
.guideline-card::before,
.drug-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.feature-card:hover::before,
.category-card:hover::before,
.exam-card:hover::before,
.info-card:hover::before,
.calculator-card:hover::before,
.question-card:hover::before,
.guideline-card:hover::before,
.drug-card:hover::before {
  transform: scaleX(1);
}
.feature-card:hover,
.category-card:hover,
.exam-card:hover,
.info-card:hover,
.calculator-card:hover,
.question-card:hover,
.guideline-card:hover,
.drug-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
  background: #fff;
}
.feature-icon,
.category-icon,
.exam-icon,
.info-icon,
.card-icon,
.summary-icon {
  width: 70px;
  height: 70px;
  background: var(--primary-gradient);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(43, 88, 118, 0.2);
  will-change: transform;
  position: relative;
  overflow: hidden;
}
.feature-icon::before,
.category-icon::before,
.exam-icon::before,
.info-icon::before,
.card-icon::before,
.summary-icon::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transform: rotate(-45deg);
  transition: transform 0.6s ease;
}
.feature-icon:hover::before,
.category-icon:hover::before,
.exam-icon:hover::before,
.info-icon:hover::before,
.card-icon:hover::before,
.summary-icon:hover::before {
  transform: rotate(45deg);
}
.feature-icon i,
.category-icon i,
.exam-icon i,
.info-icon i,
.card-icon i,
.summary-icon i {
  font-size: 1.8rem;
  color: #fff;
  z-index: 2;
  position: relative;
}
.feature-card:hover .feature-icon,
.category-card:hover .category-icon,
.exam-card:hover .exam-icon,
.info-card:hover .info-icon,
.calculator-card:hover .card-icon,
.question-card:hover .card-icon,
.guideline-card:hover .card-icon {
  transform: rotate(5deg) scale(1.1);
  box-shadow: 0 8px 25px rgba(43, 88, 118, 0.4);
}
.icon-sm {
  width: 40px;
  height: 40px;
}
.icon-lg {
  width: 90px;
  height: 90px;
}
.icon-xl {
  width: 120px;
  height: 120px;
}
.feature-title,
.category-title,
.exam-title,
.card-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.8rem;
  transition: color 0.3s ease;
}
.feature-card:hover .feature-title,
.category-card:hover .category-title,
.exam-card:hover .exam-title,
.info-card:hover .card-title,
.calculator-card:hover .card-title,
.question-card:hover .card-title,
.guideline-card:hover .card-title {
  color: var(--primary-light);
}
.feature-text,
.feature-subtitle,
.exam-subtitle,
.card-text {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  flex-grow: 1;
  font-size: 0.95rem;
  line-height: 1.5;
}
.card-header {
  background: var(--primary-gradient);
  color: var(--text-light);
  padding: 2rem;
  border: none;
  position: relative;
  overflow: hidden;
  margin: -1.8rem -1.8rem 1.8rem -1.8rem;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}
.card-header::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='20'/%3E%3Ccircle cx='30' cy='30' r='10'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}
.card-primary {
  border-top: 4px solid var(--primary-dark);
}
.card-success {
  border-top: 4px solid #28a745;
}
.card-warning {
  border-top: 4px solid #ffc107;
}
.card-danger {
  border-top: 4px solid #dc3545;
}
.login-card,
.register-card,
.profile-card {
  background: var(--white);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 1;
  border: 1px solid rgba(0, 0, 0, 0.05);
}
.login-title,
.register-title,
.profile-title {
  font-size: 2.8rem;
  font-weight: 900;
  margin-bottom: 0.8rem;
  text-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: rgba(0, 0, 0, 0);
  background-clip: text;
}
.login-subtitle,
.register-subtitle,
.profile-subtitle {
  opacity: 0.8;
  font-size: 1.2rem;
  margin-bottom: 0;
  color: var(--text-muted);
  font-weight: 500;
}
.card-body {
  padding: 3rem;
  background: linear-gradient(135deg, rgba(248, 249, 250, 0.8), var(--white));
  position: relative;
}
.compact-card {
  border-radius: 12px;
  min-height: auto;
}
.compact-card .card-body {
  padding: 1rem;
}
.compact-card .card-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.compact-card .card-text {
  font-size: 0.85rem;
  font-weight: 500;
}
.mini-card {
  border-radius: 10px;
  padding: 0.75rem;
  color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}
.mini-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}
.mini-card-content {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.mini-card-content i {
  font-size: 1.2rem;
  opacity: 0.9;
}
.mini-card-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.mini-card-value {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
}
.mini-card-label {
  font-size: 0.7rem;
  opacity: 0.9;
  line-height: 1;
  margin-top: 0.1rem;
}
.access-restricted {
  text-align: center;
  padding: 5rem 3rem;
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}
.access-restricted::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(135deg, #ff6b6b, #ff4757);
}
.restricted-icon {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, #ff6b6b, #ff4757);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  font-size: 3rem;
  color: var(--text-light);
  box-shadow: 0 8px 30px rgba(255, 107, 107, 0.3);
  animation: pulse 2s infinite;
}
.form-control {
  padding: 0.75rem 1rem;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  transition: var(--transition);
  background-color: var(--bg-light);
  font-size: 1rem;
  position: relative;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 3px var(--primary-alpha);
  background-color: var(--white);
  transform: translateY(-1px);
}
.form-control::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}
.form-label {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.form-floating {
  position: relative;
  margin-bottom: 1rem;
}
.form-floating label {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  padding: 1rem;
  pointer-events: none;
  border: 1px solid rgba(0, 0, 0, 0);
  transform-origin: 0 0;
  transition: var(--transition);
  color: var(--text-muted);
  font-weight: 500;
}
.form-control:focus ~ label,
.form-control:not(:placeholder-shown) ~ label {
  transform: scale(0.85) translateY(-0.5rem);
  opacity: 0.8;
  color: var(--primary-dark);
}
.input-group {
  border-radius: 50px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  background: var(--white);
}
.input-group-text {
  background: var(--white);
  border: none;
  color: var(--text-primary);
  font-weight: 600;
  padding: 1rem 1.5rem;
}
.name-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.table-responsive {
  border-radius: 1rem;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  background: var(--white);
  backdrop-filter: blur(20px);
}
.table {
  margin-bottom: 0;
  background: rgba(0, 0, 0, 0);
  table-layout: fixed;
  width: 100%;
}
.table th {
  border-top: none;
  font-weight: 700;
  background: rgba(43, 88, 118, 0.05);
  padding: 1.5rem;
  color: var(--text-primary);
  font-size: 0.95rem;
  letter-spacing: 0.5px;
}
.thead-dark {
  background: var(--primary-gradient);
  border: none;
}
.thead-dark th {
  color: var(--text-light) !important;
  border: none;
  padding: 1.5rem;
  font-weight: 600;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
.table td {
  vertical-align: middle;
  padding: 1.2rem 1.5rem;
  border-color: rgba(43, 88, 118, 0.08);
  transition: var(--transition);
}
.table-hover tbody tr {
  transition: var(--transition);
}
.table-hover tbody tr:hover {
  background: linear-gradient(
    135deg,
    rgba(43, 88, 118, 0.03),
    rgba(78, 67, 118, 0.02)
  );
  transform: scale(1.01);
}
.question-cell {
  max-width: 300px;
  word-wrap: break-word;
  font-size: 0.9rem;
}
.category-cell {
  width: 120px;
  max-width: 120px;
  min-width: 100px;
}
.answer-cell {
  max-width: 130px;
  word-wrap: break-word;
  font-size: 0.85rem;
}
.bookmark-cell {
  width: 80px;
  max-width: 80px;
  min-width: 80px;
  text-align: center;
}
.alert {
  border: none;
  border-radius: 12px;
  padding: 1rem 1.5rem;
  font-weight: 500;
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px var(--shadow-light);
  transition: var(--transition-fast);
  margin-bottom: 0.5rem;
  position: relative;
  overflow: hidden;
}
.alert::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.5s ease;
}
.alert:hover::before {
  left: 100%;
}
.alert-success {
  background: rgba(40, 167, 69, 0.1);
  color: #155724;
  border-color: rgba(40, 167, 69, 0.2);
}
.alert-danger {
  background: rgba(220, 53, 69, 0.1);
  color: #721c24;
  border-color: rgba(220, 53, 69, 0.2);
}
.alert-warning {
  background: rgba(255, 193, 7, 0.1);
  color: #856404;
  border-color: rgba(255, 193, 7, 0.2);
}
.alert-info {
  background: rgba(23, 162, 184, 0.1);
  color: #0c5460;
  border-color: rgba(23, 162, 184, 0.2);
}
.badge {
  padding: 0.6rem 1.2rem;
  border-radius: 2rem;
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.badge::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transform: rotate(-45deg);
  transition: transform 0.6s ease;
}
.badge:hover::before {
  transform: rotate(45deg);
}
.category-badge,
.exam-badge {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  background: var(--primary-gradient);
  color: var(--text-light);
  box-shadow: 0 4px 15px rgba(43, 88, 118, 0.2);
  z-index: 3;
}
.exam-badge {
  left: auto;
  right: 4rem;
  background: linear-gradient(135deg, #4e4376, #2b5876);
}
.answer-badge {
  display: inline-block;
  background: linear-gradient(135deg, #00b09b, #96c93d);
  color: var(--text-light);
  padding: 0.8rem 1.8rem;
  border-radius: 2rem;
  font-weight: 700;
  box-shadow: 0 6px 20px rgba(0, 176, 155, 0.3);
  transform: scale(1.05);
}
.badge-success {
  background: linear-gradient(135deg, #00b09b, #96c93d);
  box-shadow: 0 4px 15px rgba(0, 176, 155, 0.2);
}
.badge-danger {
  background: linear-gradient(135deg, #ff6b6b, #ff4757);
  box-shadow: 0 4px 15px rgba(255, 107, 107, 0.2);
}
.badge-warning {
  background: linear-gradient(135deg, #f6d365, #fda085);
  color: var(--text-light);
  box-shadow: 0 4px 15px rgba(246, 211, 101, 0.2);
}
.badge-secondary {
  background: linear-gradient(135deg, #8e9eab, #eef2f3);
  color: #4a4a4a;
  box-shadow: 0 4px 15px rgba(142, 158, 171, 0.2);
}
.category-tag {
  display: inline-block;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: #fff;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.category-tag.unknown {
  background: linear-gradient(135deg, #6c757d, #495057);
}
.modal {
  display: none;
  position: fixed;
  z-index: 1050;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(43, 88, 118, 0.6);
  backdrop-filter: blur(8px);
  animation: modalBackdrop 0.3s ease-out;
}
.modal-content {
  background: var(--white);
  margin: 5% auto;
  padding: 3rem;
  width: 90%;
  max-width: 800px;
  border-radius: 1.5rem;
  position: relative;
  animation: modalSlide 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(20px);
  border: 1px solid hsla(0, 0%, 100%, 0.2);
  overflow: hidden;
  transform: translateZ(0);
}
.modal-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--primary-gradient);
}
.close {
  position: absolute;
  right: 2rem;
  top: 1.5rem;
  font-size: 2rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  background: rgba(43, 88, 118, 0.05);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
.close:hover {
  color: var(--text-light);
  background: var(--primary-gradient);
  transform: rotate(90deg) scale(1.1);
  box-shadow: 0 4px 15px rgba(43, 88, 118, 0.3);
}
.timer-controls {
  background: hsla(0, 0%, 100%, 0.15);
  padding: 3rem;
  border-radius: 2rem;
  backdrop-filter: blur(20px);
  border: 1px solid hsla(0, 0%, 100%, 0.3);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  position: relative;
  overflow: hidden;
}
.timer-controls::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M20 20L0 0v40l20-20zM40 0v40L20 20l20-20z'/%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}
.timer-input-group {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
}
#set-timer-input {
  width: 140px;
  padding: 1rem 1.5rem;
  border-radius: 1.5rem;
  border: 2px solid hsla(0, 0%, 100%, 0.3);
  background: hsla(0, 0%, 100%, 0.1);
  color: var(--text-light);
  font-size: 1.2rem;
  text-align: center;
  font-weight: 600;
  transition: var(--transition);
}
#set-timer-input:focus {
  outline: none;
  border-color: hsla(0, 0%, 100%, 0.6);
  background: hsla(0, 0%, 100%, 0.2);
  transform: scale(1.05);
  box-shadow: 0 0 0 4px hsla(0, 0%, 100%, 0.1);
}
#set-timer-input:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}
.timer-display {
  font-size: 2.8rem;
  font-weight: 800;
  text-align: center;
  margin-top: 1.5rem;
  color: var(--text-light);
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  font-family: "Roboto Mono", monospace;
  position: relative;
  z-index: 2;
}
.fixed-timer {
  position: fixed;
  top: 20px;
  right: 20px;
  background: var(--primary-gradient);
  color: var(--text-light);
  padding: 0.8rem 1rem 0.8rem 1.5rem;
  border-radius: 50px;
  box-shadow: 0 8px 30px rgba(43, 88, 118, 0.3);
  z-index: 1001;
  transition: var(--transition);
  backdrop-filter: blur(15px);
  border: 1px solid hsla(0, 0%, 100%, 0.2);
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: grab;
}
.fixed-timer.dragging {
  cursor: grabbing;
  user-select: none;
}
.fixed-timer:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 40px rgba(43, 88, 118, 0.4);
}
.fixed-timer .timer-display {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
  padding: 0;
  text-shadow: none;
}
.fixed-timer-end-btn {
  background: hsla(0, 0%, 100%, 0.1);
  border: 1px solid hsla(0, 0%, 100%, 0.2);
  color: var(--text-light);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  font-size: 1rem;
}
.fixed-timer-end-btn:hover {
  background: rgba(255, 107, 107, 0.8);
  transform: scale(1.1) rotate(90deg);
  border-color: hsla(0, 0%, 100%, 0.5);
}
.progress {
  height: 8px;
  background: rgba(43, 88, 118, 0.1);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}
.progress-bar {
  background: var(--primary-gradient);
  transition: width 0.6s ease;
  border-radius: 10px;
  position: relative;
  overflow: hidden;
}
.progress-bar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  animation: progressShimmer 2s infinite;
}
.tooltip {
  position: relative;
  display: inline-block;
}
.tooltip .tooltiptext {
  visibility: hidden;
  background: rgba(0, 0, 0, 0.9);
  color: var(--text-light);
  text-align: center;
  border-radius: 8px;
  padding: 0.5rem 1rem;
  position: absolute;
  z-index: 1000;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  backdrop-filter: blur(10px);
}
.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: skeletonLoading 1.5s infinite;
  border-radius: 8px;
}
.skeleton-text {
  height: 1rem;
  margin-bottom: 0.5rem;
}
.skeleton-title {
  height: 1.5rem;
  width: 60%;
  margin-bottom: 1rem;
}
.image-hover-zoom {
  overflow: hidden;
  border-radius: var(--border-radius);
  transition: var(--transition);
}
.image-hover-zoom img {
  transition: var(--transition);
  width: 100%;
  height: auto;
}
.image-hover-zoom:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}
.image-hover-zoom:hover img {
  transform: scale(1.1);
}
.password-requirements {
  background: linear-gradient(
    135deg,
    rgba(43, 88, 118, 0.05),
    rgba(78, 67, 118, 0.03)
  );
  padding: 1.5rem;
  border-radius: 12px;
  margin-top: 1rem;
  border: 1px solid rgba(43, 88, 118, 0.1);
  position: relative;
  overflow: hidden;
}
.password-requirements::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-gradient);
}
.password-requirements h6 {
  color: var(--text-primary);
  font-weight: 700;
  margin-bottom: 1rem;
  font-size: 1.1rem;
}
.password-requirements ul {
  padding-left: 1.5rem;
  margin-bottom: 0;
}
.password-requirements li {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  font-weight: 500;
  position: relative;
}
.password-requirements li::marker {
  color: var(--primary-dark);
}
.result-box {
  background: hsla(0, 0%, 100%, 0.8);
  backdrop-filter: blur(20px);
  border-radius: 16px;
  padding: 1.5rem;
  margin-top: 1.5rem;
  border: 1px solid rgba(43, 88, 118, 0.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}
.result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  border-radius: 12px;
  margin-bottom: 0.8rem;
  transition: var(--transition);
  position: relative;
}
.result-item.has-result {
  background: linear-gradient(
    135deg,
    rgba(43, 88, 118, 0.05),
    rgba(78, 67, 118, 0.03)
  );
  padding: 1rem 1.5rem;
  border: 1px solid rgba(43, 88, 118, 0.1);
  transform: scale(1.02);
}
.result-label {
  display: flex;
  align-items: center;
  color: var(--text-dark);
  font-size: 1rem;
  font-weight: 600;
}
.result-label i {
  margin-right: 1rem;
  color: var(--primary-dark);
  font-size: 1.2rem;
  width: 24px;
  text-align: center;
}
.result-value {
  padding: 1rem 1.5rem;
  border-radius: 15px;
  min-width: 140px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  font-weight: 600;
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  border: 2px dashed #cbd5e0;
  color: #64748b;
  font-size: 0.95rem;
}
.result-value::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.6),
    transparent
  );
  animation: shimmer 2.5s infinite;
  z-index: 1;
}
.result-value:hover {
  border-color: var(--primary-dark);
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 6px 20px rgba(43, 88, 118, 0.2);
}
.result-item.has-result .result-value {
  background: var(--primary-gradient) !important;
  color: var(--text-light) !important;
  border: 2px solid rgba(0, 0, 0, 0) !important;
  font-weight: 700 !important;
  box-shadow: 0 6px 20px rgba(43, 88, 118, 0.3) !important;
  font-family: "Roboto Mono", monospace !important;
  font-size: 1.1rem !important;
  transform: scale(1.05) !important;
}
.result-item.has-result .result-value::before {
  display: none;
}
.pdf-container {
  padding: 20px;
  font-family: Arial, sans-serif;
  background: #fff;
}
.pdf-summary-section,
.pdf-details-section {
  margin-bottom: 30px;
}
.pdf-container h2 {
  color: #2c5282;
  margin-bottom: 2rem;
  font-size: 2rem;
  text-align: center;
}
.pdf-container h3 {
  color: #2c5282;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}
.login-section {
  background: var(--primary-gradient);
  padding: 2rem 0;
  position: relative;
}
.login-section .login-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1NiIgaGVpZ2h0PSIxMDAiPgo8cmVjdCB3aWR0aD0iNTYiIGhlaWdodD0iMTAwIiBmaWxsPSIjMjIyIj48L3JlY3Q+CjxwYXRoIGQ9Ik0yOCA2NkwwIDUwTDAgMTZMMjggMEw1NiAxNkw1NiA1MEwyOCA2NkwyOCAxMDAiIGZpbGw9Im5vbmUiIHN0cm9rZT0icmdiYSgyNTUsMjU1LDI1NSwwLjEpIiBzdHJva2Utd2lkdGg9IjIiPjwvcGF0aD4KPHBhdGggZD0iTTI4IDBMMjggMzRMMCA1MEwwIDg0TDI4IDEwMEw1NiA4NEw1NiA1MEwyOCAzNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJyZ2JhKDI1NSwyNTUsMjU1LDAuMSkiIHN0cm9rZS13aWR0aD0iMiI+PC9wYXRoPgo8L3N2Zz4=");
  opacity: 0.08;
  background-size: 56px;
  animation: overlayShift 25s linear infinite;
}
.login-section .login-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px var(--shadow-heavy);
  position: relative;
  z-index: 1;
}
.login-section .login-card .card-header {
  background: var(--primary-gradient);
  color: var(--text-light);
  padding: 2rem;
  border: none;
  position: relative;
}
.login-section .login-card .card-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.22),
    rgba(255, 255, 255, 0)
  );
  pointer-events: none;
}
.login-section .login-card .login-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.login-section .login-card .login-subtitle {
  opacity: 0.9;
  font-size: 1.1rem;
  margin-bottom: 0;
  color: var(--text-light);
}
.login-section .login-card .auth-login-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: rgba(0, 0, 0, 0);
  background-clip: text;
}
.login-section .login-card .auth-login-subtitle {
  opacity: 0.9;
  font-size: 1.1rem;
  margin-bottom: 0;
  color: var(--text-light);
}
.login-section .login-card .card-body {
  padding: 2.5rem;
  background: linear-gradient(135deg, #f8f9fa, #ffffff);
}
.login-section .login-card .form-label {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.login-section .login-card .input-group {
  border-radius: 50px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}
.login-section .login-card .input-group:focus-within {
  box-shadow:
    0 0 0 4px var(--primary-alpha),
    0 6px 18px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}
.login-section .login-card .input-group-text {
  background: var(--white);
  border: none;
  color: var(--text-primary);
  padding: 0.9rem 1.2rem;
}
.login-section .login-card .input-group-text i {
  opacity: 0.95;
}
.login-section .login-card .form-control {
  border: none;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  background: hsla(0, 0%, 100%, 0.95);
}
.login-section .login-card .form-control:focus {
  box-shadow: none;
}
.login-section .login-card .btn-login {
  background: var(--primary-gradient);
  color: var(--text-light);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  box-shadow: 0 8px 18px rgba(43, 88, 118, 0.25);
}
.login-section .login-card .btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(43, 88, 118, 0.35);
  color: var(--text-light);
}
.login-section .login-card .btn-reset {
  background: rgba(43, 88, 118, 0.1);
  color: var(--text-primary);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
}
.login-section .login-card .btn-reset:hover {
  background: rgba(43, 88, 118, 0.2);
  transform: translateY(-2px);
}
.login-section .login-card .card-footer {
  background: var(--bg-light);
  border: none;
  padding: 1.5rem;
}
.login-section .login-card .btn-home {
  color: var(--text-primary);
  font-weight: 600;
  transition: var(--transition);
}
.login-section .login-card .btn-home:hover {
  color: var(--primary-light);
  transform: translateX(-5px);
}
.login-section .login-card .alert-message {
  background: hsla(0, 0%, 100%, 0.9);
  border: none;
  border-radius: 50px;
  padding: 1rem 2rem;
  margin-top: 1.5rem;
  text-align: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
}
.login-section .login-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.18);
}
.register-section {
  min-height: 100vh;
  background: var(--primary-gradient);
  padding: 40px 0;
  position: relative;
  overflow: hidden;
}
.register-section .register-overlay {
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1NiIgaGVpZ2h0PSIxMDAiPgo8cmVjdCB3aWR0aD0iNTYiIGhlaWdodD0iMTAwIiBmaWxsPSIjMjIyIj48L3JlY3Q+CjxwYXRoIGQ9Ik0yOCA2NkwwIDUwTDAgMTZMMjggMEw1NiAxNkw1NiA1MEwyOCA2NkwyOCAxMDAiIGZpbGw9Im5vbmUiIHN0cm9rZT0icmdiYSgyNTUsMjU1LDI1NSwwLjEpIiBzdHJva2Utd2lkdGg9IjIiPjwvcGF0aD4KPHBhdGggZD0iTTI4IDBMMjggMzRMMCA1MEwwIDg0TDI4IDEwMEw1NiA4NEw1NiA1MEwyOCAzNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJyZ2JhKDI1NSwyNTUsMjU1LDAuMSkiIHN0cm9rZS13aWR0aD0iMiI+PC9wYXRoPgo8L3N2Zz4=");
  opacity: 0.1;
}
.register-section .register-card {
  background: hsla(0, 0%, 100%, 0.95);
  border-radius: var(--border-radius-xl);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
  overflow: hidden;
}
.register-section .register-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.register-section .title-underline {
  width: 80px;
  height: 4px;
  background: var(--primary-gradient);
  margin: 0 auto;
  border-radius: 2px;
  animation: titleUnderline 0.6s ease-out both;
}
.register-section .form-group {
  position: relative;
}
.register-section .form-control {
  height: 56px;
  border-radius: 12px;
  padding: 0.75rem 1.25rem;
  border: 2px solid rgba(43, 88, 118, 0.1);
  background: hsla(0, 0%, 100%, 0.9);
  transition: var(--transition);
  font-size: 1rem;
  width: 100%;
}
.register-section .form-control:focus {
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 4px rgba(43, 88, 118, 0.1);
  background: var(--white);
  outline: none;
}
.register-section .form-control::placeholder {
  color: #6c757d;
  opacity: 0.7;
}
.register-section .name-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.register-section .password-requirements {
  background: rgba(43, 88, 118, 0.05);
  padding: 1rem;
  border-radius: 12px;
  margin-top: 0.5rem;
}
.register-section .password-requirements h6 {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.register-section .password-requirements ul {
  padding-left: 1.25rem;
  margin-bottom: 0;
}
.register-section .password-requirements li {
  color: #6c757d;
  font-size: 0.875rem;
  margin-bottom: 0.25rem;
}
.register-section .btn-register {
  background: var(--primary-gradient);
  color: var(--text-light);
  padding: 1rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1.1rem;
  border: none;
  transition: var(--transition);
}
.register-section .btn-register:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(43, 88, 118, 0.3);
  color: var(--text-light);
}
.register-section .login-link {
  color: #6c757d;
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}
.register-section .login-link span {
  color: var(--text-primary);
  font-weight: 600;
}
.register-section .login-link:hover span {
  color: var(--primary-light);
  text-decoration: underline;
}
.register-section .error-message {
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.5rem;
  padding: 0.5rem;
  border-radius: 8px;
  background: rgba(220, 53, 69, 0.1);
}
.register-section .form-text {
  color: #6c757d;
  font-size: 0.85rem;
  margin-top: 0.5rem;
  padding: 0.5rem;
  border-radius: 8px;
  background: rgba(108, 117, 125, 0.1);
}
.register-section select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236c757d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}
.mypage-section {
  background: var(--primary-gradient);
  padding: 2rem 0;
  position: relative;
}
.mypage-section .mypage-overlay {
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1NiIgaGVpZ2h0PSIxMDAiPgo8cmVjdCB3aWR0aD0iNTYiIGhlaWdodD0iMTAwIiBmaWxsPSIjMjIyIj48L3JlY3Q+CjxwYXRoIGQ9Ik0yOCA2NkwwIDUwTDAgMTZMMjggMEw1NiAxNkw1NiA1MEwyOCA2NkwyOCAxMDAiIGZpbGw9Im5vbmUiIHN0cm9rZT0icmdiYSgyNTUsMjU1LDI1NSwwLjEpIiBzdHJva2Utd2lkdGg9IjIiPjwvcGF0aD4KPHBhdGggZD0iTTI4IDBMMjggMzRMMCA1MEwwIDg0TDI4IDEwMEw1NiA4NEw1NiA1MEwyOCAzNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJyZ2JhKDI1NSwyNTUsMjU1LDAuMSkiIHN0cm9rZS13aWR0aD0iMiI+PC9wYXRoPgo8L3N2Zz4=");
  opacity: 0.1;
}
.mypage-section .profile-card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px var(--shadow-heavy);
  position: relative;
  z-index: 1;
}
.mypage-section .profile-card .card-header {
  background: var(--primary-gradient);
  color: var(--text-light);
  padding: 2rem;
  border: none;
}
.mypage-section .profile-card .profile-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.mypage-section .profile-card .profile-subtitle {
  opacity: 0.9;
  font-size: 1.1rem;
  margin-bottom: 0;
}
.mypage-section .profile-card .card-body {
  padding: 2.5rem;
  background: linear-gradient(135deg, #f8f9fa, #ffffff);
}
.mypage-section .profile-card .form-label {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.mypage-section .profile-card .input-group {
  border-radius: 50px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  margin-bottom: 1rem;
}
.mypage-section .profile-card .input-group-text {
  background: var(--white);
  border: none;
  color: var(--text-primary);
}
.mypage-section .profile-card .form-control {
  border: none;
  padding: 0.75rem 1rem;
  font-size: 1rem;
}
.mypage-section .profile-card .form-control:focus {
  box-shadow: none;
}
.mypage-section .profile-card select.form-control {
  cursor: pointer;
}
.mypage-section .profile-card .btn-update {
  background: var(--primary-gradient);
  color: var(--text-light);
  padding: 0.75rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  border: none;
}
.mypage-section .profile-card .btn-update:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(43, 88, 118, 0.3);
}
.mypage-section .profile-card .password-section {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  padding-top: 2rem;
  margin-top: 3rem;
}
.mypage-section .profile-card .password-section .password-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.mypage-section .profile-card .password-section .password-subtitle {
  color: #6c757d;
  margin-bottom: 1.5rem;
}
.mypage-section .profile-card .password-section .btn-password {
  background: rgba(43, 88, 118, 0.1);
  color: var(--text-primary);
  padding: 0.75rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
}
.mypage-section .profile-card .password-section .btn-password:hover {
  background: rgba(43, 88, 118, 0.2);
  transform: translateY(-2px);
}
.hero-section {
  position: relative;
  min-height: 40vh;
  background: var(--primary-gradient);
  color: var(--text-light);
  overflow: hidden;
}
.hero-section .hero-overlay {
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI1NiIgaGVpZ2h0PSIxMDAiPgo8cmVjdCB3aWR0aD0iNTYiIGhlaWdodD0iMTAwIiBmaWxsPSIjMjIyIj48L3JlY3Q+CjxwYXRoIGQ9Ik0yOCA2NkwwIDUwTDAgMTZMMjggMEw1NiAxNkw1NiA1MEwyOCA2NkwyOCAxMDAiIGZpbGw9Im5vbmUiIHN0cm9rZT0icmdiYSgyNTUsMjU1LDI1NSwwLjEpIiBzdHJva2Utd2lkdGg9IjIiPjwvcGF0aD4KPHBhdGggZD0iTTI4IDBMMjggMzRMMCA1MEwwIDg0TDI4IDEwMEw1NiA4NEw1NiA1MEwyOCAzNCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJyZ2JhKDI1NSwyNTUsMjU1LDAuMSkiIHN0cm9rZS13aWR0aD0iMiI+PC9wYXRoPgo8L3N2Zz4=");
  opacity: 0.1;
}
.hero-section .hero-content {
  position: relative;
  z-index: 2;
  padding: 0 20px;
  max-width: 800px;
}
.hero-section .hero-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1rem;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  letter-spacing: -1px;
}
.hero-section .hero-subtitle {
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 2rem;
  opacity: 0.9;
}
.hero-section .hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  color: #f8f9fa;
  line-height: 0;
}
.form-section {
  background: #f8f9fa;
  padding: 80px 0;
  position: relative;
  min-height: 60vh;
}
.feature-card {
  background: var(--white);
  border-radius: 20px;
  padding: 2.5rem;
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}
.feature-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-gradient);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  font-size: 2rem;
  color: var(--text-light);
  transform: rotate(45deg);
  transition: var(--transition);
}
.feature-icon i {
  transform: rotate(-45deg);
}
.feature-card:hover .feature-icon {
  transform: rotate(90deg);
}
.form-group {
  margin-bottom: 1.5rem;
}
.form-label {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}
input[type="password"],
input[type="text"] {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  transition: var(--transition);
  background-color: #f8f9fa;
}
input[type="password"]:focus,
input[type="text"]:focus {
  outline: none;
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 3px rgba(43, 88, 118, 0.1);
  background-color: var(--white);
}
.form-text {
  color: #6c757d;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}
.error-feedback {
  color: #dc3545;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}
.btn-feature {
  background: var(--primary-gradient);
  color: var(--text-light);
  padding: 1rem 2rem;
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition);
  border: none;
  margin-top: 1rem;
}
.btn-feature:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(43, 88, 118, 0.3);
  color: var(--text-light);
}
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .hero-subtitle {
    font-size: 1.1rem;
  }
  .feature-card {
    padding: 2rem;
  }
  .form-section {
    padding: 40px 0;
  }
}
.password-reset-page .border-custom {
  border-color: var(--primary) !important;
}
.password-reset-page .text-custom {
  color: var(--primary);
}
.password-reset-page .card {
  border-radius: 1rem;
}
.password-reset-page .card-body {
  padding: 2rem;
}
.password-reset-page .btn-primary {
  background-color: var(--primary);
  border-color: var(--primary);
}
.password-reset-page .btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
}
.password-reset-page .rounded-pill {
  border-radius: 50px;
}
.password-reset-page .form-control {
  border-radius: 50px;
  border-color: var(--primary);
  padding-left: 20px;
}
.password-reset-page .mb-3 {
  margin-bottom: 1.5rem;
}
.password-reset-page .text-danger {
  color: #dc3545 !important;
}
.board-container {
  background: var(--bg-light);
  min-height: calc(100vh - var(--navbar-height));
  padding: 2rem 1rem;
}
.board-wrapper {
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 0 2rem;
}
@media (max-width: 1200px) {
  .board-wrapper {
    max-width: 100%;
    padding: 0 1.5rem;
  }
}
@media (max-width: 768px) {
  .board-wrapper {
    padding: 0 1rem;
  }
}
.post-container {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: var(--shadow-medium);
  overflow: hidden;
}
.post-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}
.post-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 1rem;
  line-height: 1.4;
  word-break: break-word;
}
.post-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.post-meta-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.post-meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.post-meta-item i {
  color: var(--primary-dark);
  font-size: 1rem;
  opacity: 0.7;
}
.post-actions {
  display: flex;
  gap: 0.5rem;
}
.post-content {
  padding: 2.5rem 2rem;
  min-height: 250px;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-dark);
}
.post-content img {
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-light);
}
.post-content blockquote {
  border-left: 3px solid var(--primary-dark);
  background: var(--primary-alpha);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
  font-style: italic;
}
.post-content code {
  background: var(--primary-alpha);
  color: var(--primary-dark);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}
.post-divider {
  border: 0;
  height: 1px;
  background-image: linear-gradient(
    to right,
    transparent,
    var(--primary-alpha),
    transparent
  );
  margin: 0;
}
.comments-wrapper {
  margin-top: 2.5rem;
  background: var(--white);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-medium);
  overflow: hidden;
}
.comments-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(
    135deg,
    var(--primary-alpha),
    rgba(78, 67, 118, 0.03)
  );
  padding: 1rem 1.5rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
}
.comment-item {
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: background-color 0.2s ease;
}
.comment-item:last-child {
  border-bottom: none;
}
.comment-item:hover {
  background: var(--primary-alpha);
}
.comment-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}
.comment-author {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.9rem;
}
.comment-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}
.comment-content {
  padding-left: 1.7rem;
  color: var(--text-dark);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0.8rem;
  word-break: break-word;
}
.comment-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  padding-left: 1.7rem;
}
.empty-comments {
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
}
.empty-comments p {
  font-size: 0.95rem;
}
.empty-comments i {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--primary-dark);
  opacity: 0.4;
}
.comment-form-wrapper {
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  background: linear-gradient(
    135deg,
    var(--primary-alpha),
    rgba(78, 67, 118, 0.03)
  );
  padding: 1.5rem;
}
.comment-form-wrapper .comment-form {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.comment-form-wrapper textarea {
  flex-grow: 1;
  min-height: 45px;
  height: 45px;
  resize: vertical;
  line-height: 1.5;
  padding-top: 0.6rem;
}
.comment-form-wrapper .btn-submit {
  flex-shrink: 0;
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
}
.board-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding: 0 0.5rem;
}
.board-list-container {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: var(--shadow-medium);
  overflow: hidden;
}
.board-list-header {
  display: flex;
  background: linear-gradient(
    135deg,
    var(--primary-alpha),
    rgba(78, 67, 118, 0.03)
  );
  padding: 0.8rem 2rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}
.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.post-item {
  display: flex;
  align-items: center;
  padding: 1rem 2rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  transition: background-color 0.2s ease;
}
.post-item:last-child {
  border-bottom: none;
}
.post-item:hover {
  background-color: var(--primary-alpha);
  transform: scale(1.01);
  z-index: 2;
  position: relative;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}
.post-id {
  flex-basis: 100px;
  flex-shrink: 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}
.post-title-col {
  flex-grow: 1;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.post-title-link {
  color: var(--text-dark);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s ease;
}
.post-title-link:hover {
  color: var(--primary-light);
  text-decoration: underline;
}
.comment-count {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-dark);
}
.post-author {
  flex-basis: 150px;
  flex-shrink: 0;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.post-date {
  flex-basis: 140px;
  flex-shrink: 0;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.empty-board {
  padding: 4rem 1.5rem;
  text-align: center;
}
.empty-board .empty-icon {
  font-size: 3rem;
  color: var(--primary-dark);
  opacity: 0.3;
  margin-bottom: 1rem;
}
.empty-board p {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 500;
}
.pagination-container {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}
.pagination-container .pagination {
  --bs-pagination-bg: var(--white);
  --bs-pagination-border-color: rgba(0, 0, 0, 0.1);
  --bs-pagination-hover-bg: var(--primary-alpha);
  --bs-pagination-hover-color: var(--primary-light);
  --bs-pagination-active-bg: var(--primary-dark);
  --bs-pagination-active-border-color: var(--primary-dark);
  box-shadow: var(--shadow-light);
}
.form-container {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: var(--shadow-medium);
  overflow: hidden;
}
.form-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}
.form-header .form-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
}
.form-body {
  padding: 2rem;
}
.form-field {
  margin-bottom: 1.5rem;
}
.form-field label {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.form-field input[type="text"] {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-light);
  background-clip: padding-box;
  border: 1px solid rgba(0, 0, 0, 0.1);
  appearance: none;
  border-radius: 10px;
  transition: var(--transition);
}
.form-field input[type="text"]:focus {
  outline: none;
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 3px var(--primary-alpha);
  background-color: var(--white);
}
.form-field .django-ckeditor-widget {
  width: 100%;
}
.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.8rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}
.bookmark-button,
.bookmark-icon {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: hsla(0, 0%, 100%, 0.1);
  border: none;
  padding: 12px;
  cursor: pointer;
  z-index: 4;
  transition: var(--transition);
  border-radius: 50%;
  backdrop-filter: blur(10px);
  border: 1px solid hsla(0, 0%, 100%, 0.2);
}
.bookmark-button i,
.bookmark-icon i {
  font-size: 1.6rem;
  color: #ddd;
  transition: var(--transition);
  transform-origin: center;
}
.bookmark-button.bookmarked i,
.bookmark-icon.bookmarked i {
  color: gold;
  transform: scale(1.2);
  text-shadow: 0 4px 15px rgba(255, 215, 0, 0.5);
  filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.6));
  animation: bookmarkPulse 0.5s ease;
}
.bookmark-button:hover,
.bookmark-icon:hover {
  background: hsla(0, 0%, 100%, 0.2);
  transform: scale(1.1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}
.bookmark-icon.bookmarked:hover {
  background: rgba(255, 215, 0, 0.15);
}
.bookmark-icon {
  cursor: pointer;
  font-size: 1.2rem;
  color: #ddd;
  transition: all 0.3s ease;
  display: inline-block;
  padding: 0.25rem;
}
.bookmark-icon:hover {
  color: #ffc107;
  transform: scale(1.1);
}
.bookmark-icon.bookmarked {
  color: #ffc107;
}
.bookmark-icon.disabled {
  cursor: not-allowed;
  opacity: 0.5;
}
.chat-container {
  width: 100%;
  height: 90vh;
  display: flex;
  flex-direction: column;
  background: hsla(0, 0%, 100%, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.08);
  transform: translateZ(0);
}
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  background: var(--primary-gradient);
  color: var(--text-light);
  position: relative;
  overflow: hidden;
}
.chat-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M20 20L0 0v40l20-20zM40 0v40L20 20l20-20z'/%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.3;
}
.chat-messages {
  flex-grow: 1;
  overflow-y: auto;
  padding: 1.5rem;
  background: var(--bg-light);
  position: relative;
}
.message {
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
  max-width: 80%;
  animation: messageSlideIn 0.3s ease-out;
}
.message-bubble {
  padding: 1rem 1.5rem;
  border-radius: 20px;
  max-width: 100%;
  word-wrap: break-word;
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}
.message-bubble:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}
.message-own {
  align-self: flex-end;
}
.message-own .message-bubble {
  background: var(--primary-gradient);
  color: var(--text-light);
  box-shadow: 0 4px 15px rgba(43, 88, 118, 0.2);
}
.message-other .message-bubble {
  background: var(--white);
  border: 1px solid rgba(0, 0, 0, 0.08);
  color: var(--text-dark);
}
.chat-input-area {
  display: flex;
  align-items: center;
  padding: 1.5rem;
  background: var(--white);
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  position: relative;
}
.message-input {
  flex-grow: 1;
  padding: 1rem 1.5rem;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 25px;
  margin-right: 1rem;
  font-size: 1rem;
  background: var(--bg-light);
  transition: var(--transition);
}
.message-input:focus {
  outline: none;
  border-color: var(--primary-dark);
  background: var(--white);
  box-shadow: 0 0 0 3px var(--primary-alpha);
  transform: scale(1.02);
}
.send-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: var(--text-light);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(43, 88, 118, 0.2);
}
.send-btn:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 6px 20px rgba(43, 88, 118, 0.3);
}
.question-card {
  margin-bottom: 2.5rem;
  border: 1px solid rgba(43, 88, 118, 0.08);
  background: var(--white);
  backdrop-filter: blur(20px);
  position: relative;
  border-radius: var(--border-radius);
  padding: 1.6rem;
  width: 100%;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  box-sizing: border-box;
}
.question-text {
  font-size: 1.2rem;
  color: var(--text-dark);
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background: linear-gradient(
    135deg,
    rgba(43, 88, 118, 0.05),
    rgba(78, 67, 118, 0.03)
  );
  border-radius: 1rem;
  border: 1px solid rgba(43, 88, 118, 0.08);
  position: relative;
  overflow: hidden;
  width: 100%;
  box-sizing: border-box;
  word-wrap: break-word;
}
.question-text::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary-gradient);
}
.options-grid {
  display: grid;
  gap: 0.6rem;
  margin: 1.5rem 0;
  width: 100%;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .options-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }
}
.form-check {
  padding: 1rem 1.5rem;
  border: 2px solid rgba(43, 88, 118, 0.08);
  border-radius: 14px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  background: var(--white);
  margin-bottom: 0.6rem;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  min-height: 60px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.form-check::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(43, 88, 118, 0.05),
    transparent
  );
  transition: left 0.3s ease;
}
.form-check:hover::before {
  left: 100%;
}
.form-check:hover {
  background: linear-gradient(
    135deg,
    rgba(43, 88, 118, 0.03),
    rgba(78, 67, 118, 0.02)
  );
  transform: translateY(-2px) scale(1.01);
  border-color: rgba(43, 88, 118, 0.15);
  box-shadow: 0 6px 20px rgba(43, 88, 118, 0.08);
}
.form-check-input {
  margin-right: 1.2rem;
  flex-shrink: 0;
  width: 1.6rem !important;
  height: 1.6rem !important;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  z-index: 10;
  border: 2px solid rgba(43, 88, 118, 0.2);
  background: var(--white);
}
.form-check-input:checked {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 4px rgba(43, 88, 118, 0.1);
  transform: scale(1.1);
}
.form-check-input:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(43, 88, 118, 0.2);
  border-color: var(--primary-dark);
}
.form-check:has(.form-check-input:checked) {
  background: linear-gradient(
    135deg,
    rgba(43, 88, 118, 0.08),
    rgba(78, 67, 118, 0.06)
  );
  border-color: var(--primary-dark);
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 8px 25px rgba(43, 88, 118, 0.12);
}
.form-check-label {
  color: var(--text-dark);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1.5;
  cursor: pointer;
  flex: 1;
  padding: 0.5rem 0;
  word-wrap: break-word;
}
.question-category-box {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  background: linear-gradient(
    135deg,
    rgba(43, 88, 118, 0.08),
    rgba(78, 67, 118, 0.05)
  );
  backdrop-filter: blur(15px);
  padding: 0.8rem 1.5rem;
  border-radius: 25px;
  border: 1px solid rgba(43, 88, 118, 0.15);
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 15px rgba(43, 88, 118, 0.08);
  transition: var(--transition);
}
.question-category-box:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 25px rgba(43, 88, 118, 0.15);
  border-color: rgba(43, 88, 118, 0.25);
}
.question-category-box i {
  font-size: 1.1rem;
}
.answer-display-box,
.explanation-display-box,
.image-display-box {
  border-radius: 18px;
  padding: 1.5rem 2rem;
  margin: 1.5rem 0;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.answer-display-box {
  background: linear-gradient(
    135deg,
    rgba(40, 167, 69, 0.08),
    rgba(34, 139, 34, 0.05)
  );
  backdrop-filter: blur(15px);
  border: 2px solid rgba(40, 167, 69, 0.2);
  box-shadow: 0 6px 20px rgba(40, 167, 69, 0.1);
}
.explanation-display-box {
  background: linear-gradient(
    135deg,
    rgba(23, 162, 184, 0.08),
    rgba(13, 110, 253, 0.05)
  );
  backdrop-filter: blur(15px);
  border: 2px solid rgba(23, 162, 184, 0.2);
  box-shadow: 0 6px 20px rgba(23, 162, 184, 0.1);
}
.image-display-box {
  background: linear-gradient(
    135deg,
    rgba(111, 66, 193, 0.08),
    rgba(142, 36, 170, 0.05)
  );
  backdrop-filter: blur(15px);
  border: 2px solid rgba(111, 66, 193, 0.2);
  box-shadow: 0 8px 25px rgba(111, 66, 193, 0.1);
  text-align: center;
}
.answer-display-box:hover,
.explanation-display-box:hover,
.image-display-box:hover {
  transform: translateY(-3px) scale(1.01);
}
.answer-display-title,
.explanation-display-title,
.image-display-title {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}
.answer-display-title {
  color: #1e7e34;
}
.explanation-display-title {
  color: #0c5460;
}
.image-display-title {
  color: #5a2d7e;
  justify-content: center;
}
.answer-display-title i,
.explanation-display-title i,
.image-display-title i {
  font-size: 1.3rem;
}
.answer-display-title i {
  color: #28a745;
}
.explanation-display-title i {
  color: #17a2b8;
}
.image-display-title i {
  color: #6f42c1;
}
.answer-display-content,
.explanation-display-box .explanation-display-content {
  font-size: 1.05rem;
  line-height: 1.6;
  text-align: left;
}
.answer-display-content {
  color: #155724;
  font-weight: 600;
}
.explanation-display-box .explanation-display-content {
  color: #0c5460;
  font-weight: 500;
  text-align: left;
}
.question-image {
  margin: 1.5rem 0;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}
.question-image img {
  width: 70%;
  height: auto;
  display: block;
  margin: 0 auto;
}
.action-buttons {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}
.questions-left-align .question-text {
  text-align: left !important;
}
.questions-left-align .form-check {
  text-align: left !important;
  justify-content: flex-start !important;
}
.questions-left-align .form-check-label {
  text-align: left !important;
}
.question-video {
  margin: 20px 0;
}
.video-container {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%;
  margin: 15px 0;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 8px;
}
.video-controls {
  text-align: center;
  margin-top: 10px;
}
.video-controls .btn-action-glass {
  margin: 0 5px;
  font-size: 0.9rem;
  padding: 8px 16px;
}
.video-explanation-box {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 12px;
  padding: 20px;
  margin: 15px 0;
  color: #fff;
  box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}
.video-explanation-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.video-explanation-title i {
  color: gold;
}
.video-container::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50px;
  height: 50px;
  border: 4px solid hsla(0, 0%, 100%, 0.3);
  border-top: 4px solid #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  z-index: 1;
}
.video-container iframe {
  z-index: 2;
}
.video-container iframe[src*="youtube"] + ::before {
  display: none;
}
.markdown-content {
  line-height: 1.6;
  color: #333;
}
.explanation-display-content.markdown-content {
  text-align: left !important;
}
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
  margin: 1em 0 0.5em 0;
  font-weight: bold;
  color: #2c3e50;
}
.markdown-content h1 {
  font-size: 1.5em;
}
.markdown-content h2 {
  font-size: 1.3em;
}
@media (max-width: 1400px) {
  .container-fluid {
    max-width: 1200px;
    padding: 0 15px;
  }
}
@media (max-width: 1200px) {
  .container-fluid {
    max-width: 100%;
    padding: 0 15px;
  }
  .feature-card,
  .category-card,
  .exam-card,
  .info-card,
  .calculator-card,
  .question-card,
  .guideline-card {
    padding: 1.5rem;
  }
  .navbar-text {
    font-size: 0.8rem;
  }
  .drug-list {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}
@media (max-width: 992px) {
  :root {
    --navbar-height: 65px;
  }
  body {
    padding-top: var(--navbar-height);
  }
  .navbar {
    height: var(--navbar-height);
    padding: 0.6rem 0;
  }
  .navbar-brand {
    font-size: 1.4rem;
  }
  .hero-section,
  .header-section {
    min-height: 80vh;
    padding: 3rem 0;
  }
  .drug-list {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
  .question-category-box,
  .category-display,
  .answer-display-box,
  .show-answer-box,
  .explanation-display-box,
  .show-explanation-box,
  .image-display-box,
  .show-image-box {
    padding: 1.2rem 1.5rem;
    margin: 1.5rem 0;
  }
}
@media (max-width: 768px) {
  :root {
    --navbar-height: 60px;
  }
  body {
    padding-top: var(--navbar-height);
  }
  .navbar {
    height: var(--navbar-height);
    padding: 0.5rem 0;
  }
  .navbar-brand {
    font-size: 1.3rem;
  }
  .container-fluid,
  .container {
    padding: 0 10px;
  }
  .feature-card,
  .category-card,
  .exam-card,
  .info-card,
  .calculator-card,
  .question-card,
  .guideline-card {
    padding: 1.3rem;
  }
  .feature-icon,
  .category-icon,
  .exam-icon,
  .info-icon,
  .card-icon,
  .summary-icon {
    width: 60px;
    height: 60px;
  }
  .feature-icon i,
  .category-icon i,
  .exam-icon i,
  .info-icon i,
  .card-icon i,
  .summary-icon i {
    font-size: 1.5rem;
  }
  .hero-section,
  .header-section {
    min-height: 70vh;
    padding: 2rem 0;
  }
  .timer-controls {
    margin: 2rem 1rem 0;
    padding: 2rem;
  }
  .question-card {
    margin: 0 0 2rem 0;
    padding: 1.5rem;
    width: 100% !important;
  }
  .modal-content {
    margin: 10% 5%;
    padding: 2rem;
  }
  .fixed-timer {
    top: 15px;
    right: 15px;
    padding: 0.6rem 0.8rem 0.6rem 1.2rem;
  }
  .fixed-timer .timer-display {
    font-size: 1rem;
  }
  .timer-display {
    font-size: 2rem;
  }
  .bookmark-button,
  .bookmark-icon {
    right: 4rem;
  }
  .drug-list {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
  .chat-container {
    width: 100%;
    height: 100vh;
    max-width: none;
    margin: 0;
    border-radius: 0;
  }
  .social-icons a {
    margin: 0 8px;
    font-size: 1.2rem;
    padding: 8px;
  }
  .form-check {
    padding: 1rem 1.2rem;
    min-height: 55px;
  }
  .form-check-input {
    width: 1.4rem !important;
    height: 1.4rem !important;
    margin-right: 1rem;
  }
  .form-check-label {
    font-size: 1rem;
    padding: 0.4rem 0;
  }
  .question-category-box,
  .category-display {
    font-size: 0.85rem;
    padding: 0.6rem 1.2rem;
    gap: 0.6rem;
  }
  .answer-display-box,
  .show-answer-box,
  .explanation-display-box,
  .show-explanation-box,
  .image-display-box,
  .show-image-box {
    padding: 1.2rem 1.5rem;
    margin: 1.2rem 0;
  }
  .answer-display-title,
  .explanation-display-title,
  .image-display-title {
    font-size: 1rem;
    gap: 0.8rem;
  }
  .answer-display-content,
  .explanation-display-content {
    font-size: 0.95rem;
  }
  .compact-card .card-title {
    font-size: 0.8rem;
  }
  .compact-card .card-text {
    font-size: 0.75rem;
  }
  .mini-card {
    padding: 0.5rem;
  }
  .category-tag {
    font-size: 0.65rem;
    padding: 0.15rem 0.5rem;
  }
  .video-controls .btn-action-glass {
    margin: 3px;
    padding: 6px 12px;
    font-size: 0.8rem;
  }
  .video-container {
    margin: 10px 0;
  }
}
@media (max-width: 576px) {
  .container-fluid,
  .container {
    padding: 0 8px;
  }
  .navbar .btn {
    display: block;
    width: 100%;
    margin: 0.2rem 0;
    font-size: 0.85rem;
  }
  .navbar-text {
    margin-bottom: 0.5rem;
    display: block;
    text-align: center;
    font-size: 0.8rem;
  }
  .timer-input-group {
    flex-direction: column;
    gap: 1rem;
  }
  #set-timer-input {
    width: 100%;
  }
  .question-card {
    margin: 0 0 1.5rem 0;
    padding: 1.3rem;
  }
  .question-text {
    font-size: 1.1rem;
    padding: 1.5rem;
    min-height: 50px;
  }
  .form-check {
    padding: 0.9rem 1rem;
    min-height: 50px;
  }
  .form-check-label {
    font-size: 0.95rem;
    width: calc(100% - 2.5rem);
  }
  .options-grid {
    gap: 0.4rem;
  }
  .answer-section,
  .comment-section {
    padding: 1.5rem;
    margin-top: 1.5rem;
  }
  .drug-list {
    grid-template-columns: 1fr;
  }
  .exam-badge,
  .category-badge {
    position: static;
    display: inline-block;
    margin: 0.5rem 0;
    font-size: 0.75rem;
    padding: 0.4rem 0.8rem;
  }
  .bookmark-button,
  .bookmark-icon {
    position: absolute;
    top: 1rem;
    right: 1rem;
  }
  .form-check {
    padding: 1rem 1.2rem;
    min-height: 55px;
  }
  .form-check-input {
    width: 1.3rem !important;
    height: 1.3rem !important;
    margin-right: 0.8rem;
  }
  .form-check-label {
    font-size: 0.95rem;
    padding: 0.3rem 0;
  }
  .options-grid {
    gap: 0.4rem;
  }
  .form-check {
    padding: 0.6rem;
  }
  .form-check-label {
    font-size: 1rem;
    width: calc(100% - 2.8rem);
  }
  .question-category-box,
  .category-display {
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
    gap: 0.5rem;
    border-radius: 20px;
  }
  .answer-display-box,
  .show-answer-box,
  .explanation-display-box,
  .show-explanation-box,
  .image-display-box,
  .show-image-box {
    padding: 1rem 1.2rem;
    margin: 1rem 0;
    border-radius: 15px;
  }
  .answer-display-title,
  .explanation-display-title,
  .image-display-title {
    font-size: 0.95rem;
    gap: 0.6rem;
    margin-bottom: 0.8rem;
  }
  .answer-display-title i,
  .explanation-display-title i,
  .image-display-title i {
    font-size: 1.1rem;
  }
  .answer-display-content,
  .explanation-display-content {
    font-size: 0.9rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .gradient-orb,
  .hero-title,
  .hero-subtitle,
  .btn-hero {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
  .scroll-reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }
}
@media (prefers-contrast: high) {
  :root {
    --primary-gradient: linear-gradient(135deg, #1a365d, #2d3748);
    --shadow-light: rgba(0, 0, 0, 0.3);
    --shadow-medium: rgba(0, 0, 0, 0.4);
    --shadow-heavy: rgba(0, 0, 0, 0.5);
  }
  .feature-card,
  .category-card,
  .exam-card,
  .info-card,
  .calculator-card,
  .question-card,
  .guideline-card {
    border: 2px solid var(--primary-dark);
  }
  .btn-outline-gradient {
    border-width: 3px;
  }
  .btn-hero {
    border: 2px solid hsla(0, 0%, 100%, 0.8);
  }
  .question-category-box,
  .category-display,
  .answer-display-box,
  .show-answer-box,
  .explanation-display-box,
  .show-explanation-box,
  .image-display-box,
  .show-image-box {
    border-width: 3px;
  }
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg-light: #0f1419;
    --white: #1a1f2e;
    --text-dark: #e2e8f0;
    --text-muted: #94a3b8;
    --bg-gradient: linear-gradient(135deg, #0f1419 0%, #1a1f2e 100%);
  }
  .navbar {
    background: rgba(26, 31, 46, 0.95);
  }
  .feature-card,
  .category-card,
  .exam-card,
  .info-card,
  .calculator-card,
  .question-card,
  .guideline-card {
    background: rgba(26, 31, 46, 0.95);
    border-color: hsla(0, 0%, 100%, 0.1);
  }
  .question-category-box,
  .category-display {
    background: linear-gradient(
      135deg,
      rgba(43, 88, 118, 0.15),
      rgba(78, 67, 118, 0.1)
    );
    border-color: rgba(43, 88, 118, 0.25);
  }
  .answer-display-box,
  .show-answer-box {
    background: linear-gradient(
      135deg,
      rgba(40, 167, 69, 0.15),
      rgba(34, 139, 34, 0.1)
    );
    border-color: rgba(40, 167, 69, 0.3);
  }
  .explanation-display-box,
  .show-explanation-box {
    background: linear-gradient(
      135deg,
      rgba(23, 162, 184, 0.15),
      rgba(13, 110, 253, 0.1)
    );
    border-color: rgba(23, 162, 184, 0.3);
  }
  .image-display-box,
  .show-image-box {
    background: linear-gradient(
      135deg,
      rgba(111, 66, 193, 0.15),
      rgba(142, 36, 170, 0.1)
    );
    border-color: rgba(111, 66, 193, 0.3);
  }
}
@media print {
  .navbar,
  .social-icons,
  .btn,
  .hero-section,
  .timer-controls,
  .fixed-timer,
  .bookmark-button,
  .fab-menu,
  .action-buttons {
    display: none !important;
  }
  body {
    background: var(--white) !important;
    color: #000 !important;
    padding-top: 0 !important;
  }
  .question-card {
    break-inside: avoid;
    border: 1px solid #ddd;
    box-shadow: none;
    margin: 1rem 0;
    padding: 1.5rem;
  }
  .category-badge,
  .exam-badge {
    border: 1px solid var(--primary-dark);
    background: none !important;
    color: var(--primary-dark) !important;
  }
  .feature-card,
  .category-card,
  .exam-card,
  .info-card {
    box-shadow: none;
    border: 1px solid #ddd;
  }
  .question-category-box,
  .category-display,
  .answer-display-box,
  .show-answer-box,
  .explanation-display-box,
  .show-explanation-box,
  .image-display-box,
  .show-image-box {
    background: var(--white) !important;
    border: 1px solid #ddd !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
  }
  .answer-display-title,
  .explanation-display-title,
  .image-display-title {
    color: #333 !important;
  }
  .answer-display-content,
  .explanation-display-content {
    color: #555 !important;
  }
} /*# sourceMappingURL=components.css.map */
/* Footer social icons: tidy proportions and spacing */
.social-icons{display:flex;justify-content:center;gap:12px}
.social-icons a{width:44px;height:44px;margin:0;padding:0;line-height:1;display:inline-flex;align-items:center;justify-content:center}
.social-icons i{line-height:1;font-size:1.25rem}

/* Footer text style */
.footer-text {
  font-size: 0.9rem;
  opacity: 0.8;
}