/* Global Styles */
:root {
  --primary-color: rgb(58, 146, 98);
  --secondary-color: rgb(0, 176, 80);
  --accent-color: #e74c3c;
  --text-color-light: #333;
  --text-color-dark: #f4f4f4;
  --bg-color-light: #f9f9f9;
  --bg-color-dark: #121212;
  --card-bg-light: #fff;
  --card-bg-dark: #1e1e1e;
  --transition: all 0.3s ease;
}

body {
  font-family: 'Roboto', sans-serif;
  margin: 0;
  padding: 0;
  transition: var(--transition);
}

/* Theme Styles */
body.light-theme {
  background-color: var(--bg-color-light);
  color: var(--text-color-light);
}

body.dark-theme {
  background-color: var(--bg-color-dark);
  color: var(--text-color-dark);
}

/* Navbar Styles */
.navbar {
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
  transition: all 0.4s ease;
  padding: 15px 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.modern-navbar {
  background: rgba(15, 32, 39, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

/* Light theme navbar */
.light-theme .modern-navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* Dark theme navbar */
.dark-theme .modern-navbar {
  background: rgba(15, 32, 39, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-brand {
  padding: 0;
}

/* Logo Styles */
.logo-container {
  display: flex;
  align-items: center;
}

.logo-image-wrapper {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 12px;
  position: relative;
  overflow: visible;
  transition: all 0.3s ease;
  animation: logo-float 6s ease-in-out infinite;
}

.logo-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  transition: all 0.3s ease;
  z-index: 2;
  position: relative;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.dark-theme .logo-image {
  box-shadow: 0 5px 15px rgba(255, 255, 255, 0.15);
}

@keyframes logo-float {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-6px) rotate(5deg);
  }
  50% {
    transform: translateY(0) rotate(0deg);
  }
  75% {
    transform: translateY(6px) rotate(-5deg);
  }
}

.navbar-brand:hover .logo-image {
  transform: scale(1.05);
  border-color: var(--primary-color);
}

.logo-image-wrapper::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0),
    rgba(255, 255, 255, 0.1),
    rgba(255, 255, 255, 0)
  );
  transform: rotate(45deg);
  animation: shine 6s ease-in-out infinite;
  z-index: 1;
  pointer-events: none;
}

@keyframes shine {
  0% {
    transform: rotate(45deg) translateY(-100%);
  }
  100% {
    transform: rotate(45deg) translateY(100%);
  }
}

.navbar-brand:hover .logo-image-wrapper {
  animation-play-state: paused;
  transform: scale(1.1);
}

/* Math symbols around logo */
.math-symbol {
  position: absolute;
  font-family: 'Cambria Math', 'STIX Two Math', serif;
  font-weight: bold;
  opacity: 0;
  color: var(--primary-color);
  text-shadow: 0 0 5px rgba(58, 146, 98, 0.5);
  pointer-events: none;
  z-index: 3;
}

.dark-theme .math-symbol {
  color: #fff;
  text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
}

.math-symbol-1 {
  top: -10px;
  left: -5px;
  font-size: 16px;
  animation: math-float-1 4s ease-in-out infinite 0.5s, math-fade 4s ease-in-out infinite 0.5s;
}

.math-symbol-2 {
  top: 5px;
  right: -8px;
  font-size: 18px;
  animation: math-float-2 5s ease-in-out infinite 1s, math-fade 5s ease-in-out infinite 1s;
}

.math-symbol-3 {
  bottom: -5px;
  left: 5px;
  font-size: 14px;
  animation: math-float-3 4.5s ease-in-out infinite 1.5s, math-fade 4.5s ease-in-out infinite 1.5s;
}

.math-symbol-4 {
  bottom: 10px;
  right: -10px;
  font-size: 16px;
  animation: math-float-4 5.5s ease-in-out infinite 0.2s, math-fade 5.5s ease-in-out infinite 0.2s;
}

@keyframes math-float-1 {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-8px, -8px) rotate(-10deg); }
}

@keyframes math-float-2 {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(8px, -5px) rotate(15deg); }
}

@keyframes math-float-3 {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-5px, 8px) rotate(-5deg); }
}

@keyframes math-float-4 {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(10px, 5px) rotate(10deg); }
}

@keyframes math-fade {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.8; }
}

.logo-text-container {
  display: flex;
  flex-direction: column;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
  font-family: 'Cambria Math', 'STIX Two Math', serif;
  letter-spacing: 1px;
  line-height: 1.2;
  margin: 0;
  transition: color 0.3s ease;
}

.logo-tagline {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 500;
  transition: color 0.3s ease;
}

/* Light theme logo text */
.light-theme .logo-text {
  color: #1e293b;
}

.light-theme .logo-tagline {
  color: rgba(30, 41, 59, 0.7);
}

/* Custom Toggler */
.custom-toggler {
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border-radius: 8px;
  padding: 8px 12px;
  transition: all 0.3s ease;
}

.custom-toggler:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Navigation Links */
.navbar-nav {
  margin-left: 20px;
}

.nav-link-animated {
  color: rgba(255, 255, 255, 0.85) !important;
  font-weight: 500;
  padding: 10px 16px !important;
  margin: 0 5px;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Light theme navigation links */
.light-theme .nav-link-animated {
  color: rgba(30, 41, 59, 0.85) !important;
}

.nav-link-animated:hover {
  color: #ffffff !important;
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* Light theme navigation hover */
.light-theme .nav-link-animated:hover {
  color: #1e293b !important;
  background-color: rgba(30, 41, 59, 0.1);
}

.nav-link-animated::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
  border-radius: 3px;
}

.nav-link-animated:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-icon-wrapper {
  width: 28px;
  height: 28px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 8px;
  transition: all 0.3s ease;
}

.nav-link-animated:hover .nav-icon-wrapper {
  background: rgba(58, 146, 98, 0.2);
  transform: rotate(360deg);
}

.nav-icon {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  transition: color 0.3s ease;
}

/* Light theme nav icons */
.light-theme .nav-icon {
  color: rgba(30, 41, 59, 0.9);
}

/* Dropdown Menu */
.modern-dropdown {
  border-radius: 12px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(15, 32, 39, 0.95);
  backdrop-filter: blur(10px);
  padding: 12px;
  margin-top: 15px;
  min-width: 220px;
  transition: all 0.3s ease;
}

/* Light theme dropdown */
.light-theme .modern-dropdown {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.dropdown-header {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 8px 16px;
  font-weight: 600;
  transition: color 0.3s ease;
}

/* Light theme dropdown header */
.light-theme .dropdown-header {
  color: rgba(30, 41, 59, 0.5);
}

.dropdown-item {
  padding: 10px 16px;
  border-radius: 8px;
  transition: all 0.2s ease;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

/* Light theme dropdown items */
.light-theme .dropdown-item {
  color: rgba(30, 41, 59, 0.85);
}

.dropdown-item:hover {
  background-color: rgba(58, 146, 98, 0.15);
  color: white;
  transform: translateX(5px);
}

/* Light theme dropdown item hover */
.light-theme .dropdown-item:hover {
  background-color: rgba(58, 146, 98, 0.15);
  color: #1e293b;
}


.dropdown-divider {
  border-color: rgba(255, 255, 255, 0.1);
  margin: 8px 0;
}

/* Theme Toggle */
.theme-toggle {
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(15deg);
}

/* Hide both icons by default (overridden by theme-toggle.css) as fallback */
.theme-toggle .light-icon,
.theme-toggle .dark-icon {
  display: none;
  transition: all 0.3s ease;
}

/* Theme-specific icon visibility */
.dark-theme .navbar .theme-toggle .light-icon {
  display: inline-block;
  color: #facc15;
}

.light-theme .navbar .theme-toggle .dark-icon {
  display: inline-block;
  color: #1e293b;
}

/* General theme toggle button styling */
.navbar .theme-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.light-theme .navbar .theme-toggle {
  background: rgba(30, 41, 59, 0.1);
}

.navbar .theme-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(15deg);
}

.light-theme .navbar .theme-toggle:hover {
  background: rgba(30, 41, 59, 0.2);
}

/* User Button */
.user-btn {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: 30px;
  padding: 8px 16px;
  color: white;
  transition: all 0.3s ease;
}

/* Light theme user button */
.light-theme .user-btn {
  background: rgba(30, 41, 59, 0.1);
  color: #1e293b;
}

.user-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Light theme user button hover */
.light-theme .user-btn:hover {
  background: rgba(30, 41, 59, 0.2);
}

.user-avatar {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 10px;
  font-size: 1.2rem;
}

.user-name {
  font-weight: 500;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.user-dropdown {
  min-width: 240px;
}

.logout-item {
  color: #ff5252;
}

.logout-item:hover {
  background-color: rgba(255, 82, 82, 0.1);
  color: #ff5252;
}

/* Auth Buttons */
.auth-buttons {
  display: flex;
}

.btn-glow-secondary {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: white;
  border-radius: 30px;
  padding: 8px 20px;
  font-weight: 500;
  transition: all 0.3s ease;
}

/* Light theme auth buttons */
.light-theme .btn-glow-secondary {
  border-color: rgba(30, 41, 59, 0.3);
  color: #1e293b;
}

.btn-glow-secondary:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  transform: translateY(-3px);
}

/* Light theme auth button hover */
.light-theme .btn-glow-secondary:hover {
  border-color: rgba(30, 41, 59, 0.5);
  background: rgba(30, 41, 59, 0.1);
  color: #1e293b;
}

/* Theme Toggle Button */
.theme-toggle {
  cursor: pointer;
  padding: 5px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.theme-toggle:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

.dark-theme .theme-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Card Styles */
.card {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
}

.light-theme .card {
  background-color: var(--card-bg-light);
}

.dark-theme .card {
  background-color: var(--card-bg-dark);
  border-color: #333;
}

.dark-theme .card-header {
  background-color: rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid #333;
}

/* Button Styles */
.btn {
  border-radius: 5px;
  padding: 10px 20px;
  font-weight: 500;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-primary:hover {
  background-color: #2980b9;
  border-color: #2980b9;
}

.btn-success {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
}

.btn-success:hover {
  background-color: #27ae60;
  border-color: #27ae60;
}

/* Form Styles */
.form-control {
  border-radius: 5px;
  padding: 10px;
  transition: var(--transition);
}

.dark-theme .form-control {
  background-color: #2d2d2d;
  border-color: #444;
  color: var(--text-color-dark);
}

.dark-theme .form-control:focus {
  background-color: #333;
  color: var(--text-color-dark);
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25);
}

/* Input Group with Icons */
.input-group-text {
  transition: var(--transition);
}

.dark-theme .input-group-text {
  background-color: #333;
  border-color: #444;
  color: var(--text-color-dark);
}

/* Alert Styles */
.alert {
  border-radius: 5px;
  transition: var(--transition);
}

/* Footer Styles */
footer {
  margin-top: 50px;
  padding: 20px 0;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.light-theme footer {
  background-color: #f5f5f5;
  border-top: 1px solid #eee;
}

.dark-theme footer {
  background-color: #1a1a1a;
  border-top: 1px solid #333;
}

/* Footer Watermark Logo */
.footer-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 0;
  opacity: 0.05;
  pointer-events: none;
}

.footer-watermark-logo {
  width: 300px;
  height: 300px;
  object-fit: contain;
  animation: footer-logo-float 15s ease-in-out infinite;
}

@keyframes footer-logo-float {
  0%, 100% {
    transform: rotate(0deg) scale(1);
  }
  25% {
    transform: rotate(5deg) scale(1.05);
  }
  50% {
    transform: rotate(0deg) scale(1);
  }
  75% {
    transform: rotate(-5deg) scale(0.95);
  }
}

/* Footer Logo in Brand */
.footer-logo-image {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  animation: logo-float 6s ease-in-out infinite;
}

.dark-theme .footer-logo-image {
  box-shadow: 0 5px 15px rgba(255, 255, 255, 0.15);
}

/* Landing Page Styles */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
}

/* Background Logo Watermark */
.background-logo-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
  pointer-events: none;
}

/* Also apply to hero-section-new */
.hero-section-new .background-logo-watermark {
  z-index: 2; /* Adjust z-index as needed based on other elements */
}

.bg-logo-image {
  width: 500px;
  height: 500px;
  opacity: 0.03;
  animation: bg-logo-float 20s ease-in-out infinite;
}

@keyframes bg-logo-float {
  0%, 100% {
    transform: rotate(0deg) scale(1) translate(0, 0);
    opacity: 0.03;
  }
  25% {
    transform: rotate(5deg) scale(1.1) translate(-30px, 20px);
    opacity: 0.04;
  }
  50% {
    transform: rotate(0deg) scale(1) translate(0, 0);
    opacity: 0.03;
  }
  75% {
    transform: rotate(-5deg) scale(0.9) translate(30px, -20px);
    opacity: 0.02;
  }
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-overlay {
  position: relative;
  width: 100%;
  z-index: 3;
  padding: 80px 0;
}

.floating-equations {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.hero-content {
  z-index: 2;
  position: relative;
  padding: 2.5rem;
  border-radius: 1.5rem;
  background-color: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card {
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transition: 0.5s;
  pointer-events: none;
}

.glass-card:hover::before {
  left: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  background: linear-gradient(90deg, #ff4e50, #f9d423);
  color: white;
  padding: 8px 15px;
  border-radius: 50px;
  margin-bottom: 20px;
  box-shadow: 0 5px 15px rgba(255, 78, 80, 0.3);
  font-weight: 600;
  font-size: 0.9rem;
}

.badge-icon {
  margin-right: 8px;
  font-size: 1rem;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 20px;
  font-family: 'Cambria Math', 'STIX Two Math', serif;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  line-height: 1.2;
  color: white;
}

.gradient-text {
  background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 900;
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 30px;
  font-family: 'Cambria Math', 'STIX Two Math', serif;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
}

.math-equations-container {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 25px;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.equation-badge {
  position: absolute;
  top: -12px;
  left: 20px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-bottom: 25px;
}

.feature-item {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  padding: 8px 15px;
  border-radius: 50px;
  font-size: 0.9rem;
  color: white;
}

.feature-item i {
  color: #4caf50;
  margin-right: 8px;
}

.hero-cta {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.btn-glow {
  position: relative;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border: none;
  box-shadow: 0 5px 15px rgba(58, 146, 98, 0.4);
  transition: all 0.3s ease;
  overflow: hidden;
}

.btn-glow:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(58, 146, 98, 0.6);
}

.btn-hover-effect {
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.btn-hover-effect:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-3px);
}

.animation-wrapper {
  position: relative;
  width: 100%;
  height: 450px;
  perspective: 1000px;
}

.glow-effect {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(58, 146, 98, 0.3) 0%,
    rgba(0, 176, 80, 0) 70%
  );
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  filter: blur(30px);
  z-index: 0;
  animation: pulse-glow 3s infinite alternate;
}

@keyframes pulse-glow {
  0% {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(0.8);
  }
  100% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(1.2);
  }
}

.students-counter {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 15px 20px;
  margin-top: 30px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.counter-icon {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
  font-size: 1.5rem;
  color: white;
}

.counter-text {
  text-align: left;
}

.counter-number {
  font-size: 1.8rem;
  font-weight: 700;
  color: white;
  line-height: 1;
}

.counter-label {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  line-height: 0;
  z-index: 4;
}

.hero-wave svg {
  width: 100%;
  height: auto;
}

/* Math Background Animation */
.math-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  opacity: 0.1;
  pointer-events: none;
  overflow: hidden;
}

.dark-theme .math-background {
  opacity: 0.15;
}

/* Math Bubbles */
.math-bubble {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
  text-align: center;
  font-family: 'Courier New', monospace;
  font-weight: bold;
  animation: float linear forwards;
  z-index: 1;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.8);
  text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(2px);
}

@keyframes float {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100vh) rotate(360deg);
    opacity: 0;
  }
}

/* Three.js Container */
.three-math-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* Math Animation Container */
.math-animation-container {
  width: 100%;
  height: 400px;
  position: relative;
  z-index: 2;
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* Math Shapes */
.math-shapes-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.math-shape {
  position: absolute;
  border: 2px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.5);
  opacity: 0.7;
  transition: transform 0.5s ease, opacity 0.5s ease;
  z-index: 2;
}

.shape-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  top: 10%;
  left: 10%;
  border-color: transparent;
  background: radial-gradient(circle at 30% 30%, #ff5722, #ff9800);
  box-shadow: 0 0 20px rgba(255, 87, 34, 0.6);
}

.shape-square {
  width: 70px;
  height: 70px;
  top: 30%;
  right: 15%;
  border-color: transparent;
  background: linear-gradient(135deg, #4caf50, #8bc34a);
  box-shadow: 0 0 20px rgba(76, 175, 80, 0.6);
}

.shape-triangle {
  width: 0;
  height: 0;
  border-left: 50px solid transparent;
  border-right: 50px solid transparent;
  border-bottom: 86px solid rgba(33, 150, 243, 0.9);
  background-color: transparent;
  bottom: 20%;
  left: 20%;
  box-shadow: 0 10px 20px rgba(33, 150, 243, 0.5);
}

.shape-pentagon {
  width: 60px;
  height: 60px;
  position: absolute;
  top: 60%;
  right: 25%;
  clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
  background: linear-gradient(135deg, #9c27b0, #673ab7);
  box-shadow: 0 0 20px rgba(156, 39, 176, 0.6);
}

.shape-hexagon {
  width: 70px;
  height: 60px;
  position: absolute;
  top: 40%;
  left: 30%;
  clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
  background: linear-gradient(135deg, #ffc107, #ff9800);
  box-shadow: 0 0 20px rgba(255, 193, 7, 0.6);
}

/* Shape animations */
.pulse-animation {
  animation: pulse-shape 3s infinite ease-in-out;
}

.rotate-animation {
  animation: rotate-shape 8s infinite linear;
}

.bounce-animation {
  animation: bounce-shape 5s infinite ease-in-out;
}

.float-animation {
  animation: float-shape 6s infinite ease-in-out;
}

.spin-animation {
  animation: spin-shape 7s infinite ease-in-out;
}

@keyframes pulse-shape {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.9;
  }
}

@keyframes rotate-shape {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes bounce-shape {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-30px);
  }
}

@keyframes float-shape {
  0%,
  100% {
    transform: translateY(0) translateX(0);
  }
  25% {
    transform: translateY(-20px) translateX(10px);
  }
  50% {
    transform: translateY(0) translateX(20px);
  }
  75% {
    transform: translateY(20px) translateX(10px);
  }
}

@keyframes spin-shape {
  0%,
  100% {
    transform: rotate(0deg) scale(1);
  }
  50% {
    transform: rotate(180deg) scale(1.1);
  }
}

/* Typing Animation */
.typing-animation::after {
  content: '|';
  animation: blink 1s infinite;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* Features Section */
.features-section {
  padding: 100px 0;
  position: relative;
  background-color: #ffffff;
  overflow: hidden;
}

.section-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.floating-shape {
  position: absolute;
  opacity: 0.05;
  filter: blur(3px);
  z-index: 0;
}

.shape1 {
  top: 10%;
  left: 5%;
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  animation: float-shape-slow 15s infinite alternate ease-in-out;
}

.shape2 {
  bottom: 10%;
  right: 5%;
  width: 250px;
  height: 250px;
  background: linear-gradient(135deg, #4caf50, #8bc34a);
  border-radius: 64% 36% 27% 73% / 55% 58% 42% 45%;
  animation: float-shape-slow 12s infinite alternate-reverse ease-in-out;
}

.shape3 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: linear-gradient(135deg, #ff9800, #f44336);
  border-radius: 46% 54% 62% 38% / 30% 30% 70% 70%;
  opacity: 0.03;
  animation: rotate-slow 20s infinite linear;
}

@keyframes float-shape-slow {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  100% {
    transform: translate(20px, 20px) rotate(10deg);
  }
}

@keyframes rotate-slow {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.section-header {
  position: relative;
  z-index: 1;
  margin-bottom: 60px;
}

.section-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: white;
  font-size: 1.5rem;
  box-shadow: 0 10px 20px rgba(58, 146, 98, 0.3);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #333;
}

.section-divider {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-bottom: 20px;
}

.section-divider span {
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.2rem;
  color: #666;
  max-width: 700px;
  margin: 0 auto;
}

.feature-card-modern {
  background: white;
  border-radius: 16px;
  padding: 30px;
  text-align: center;
  height: 100%;
  position: relative;
  z-index: 1;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  transition: all 0.4s ease;
  transform-style: preserve-3d;
  perspective: 1000px;
}

.feature-card-modern:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 114, 255, 0.15);
}

.feature-icon-wrapper {
  position: relative;
  width: 80px;
  height: 80px;
  margin: 0 auto 25px;
}

.feature-icon-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  border-radius: 30% 70% 50% 50% / 50%;
  opacity: 0.1;
  transition: all 0.4s ease;
}

.feature-card-modern:hover .feature-icon-bg {
  transform: scale(1.2) rotate(10deg);
  opacity: 0.2;
}

.feature-icon {
  position: relative;
  z-index: 1;
  font-size: 2.5rem;
  color: var(--primary-color);
  line-height: 80px;
  transition: all 0.4s ease;
}

.feature-card-modern:hover .feature-icon {
  transform: rotateY(360deg);
  color: var(--secondary-color);
}

.feature-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 15px;
  color: #333;
  transition: all 0.3s ease;
}

.feature-card-modern:hover .feature-title {
  color: var(--primary-color);
}

.feature-description {
  color: #666;
  margin-bottom: 0;
  line-height: 1.6;
}

.feature-hover-effect {
  position: absolute;
  top: -100%;
  left: -100%;
  width: 300%;
  height: 300%;
  background: radial-gradient(
    circle,
    rgba(58, 146, 98, 0.1) 0%,
    rgba(0, 176, 80, 0) 70%
  );
  transform: rotate(45deg);
  transition: all 0.8s ease;
  z-index: -1;
}

.feature-card-modern:hover .feature-hover-effect {
  top: -50%;
  left: -50%;
}

.features-cta {
  margin-top: 50px;
  position: relative;
  z-index: 1;
}

/* Math Demo Section */
.math-demo-section {
  padding: 120px 0;
  position: relative;
  overflow: hidden;
  background-color: #0f2027;
  color: white;
}

.demo-bg-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.demo-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(15, 32, 39, 0.9) 0%,
    rgba(32, 58, 67, 0.9) 50%,
    rgba(44, 83, 100, 0.9) 100%
  );
  z-index: 1;
}

.demo-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

.demo-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(
      rgba(255, 255, 255, 0.05) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 30px 30px;
  z-index: 3;
}

.demo-content {
  position: relative;
  z-index: 5;
  padding: 30px;
}

.demo-badge {
  display: inline-flex;
  align-items: center;
  background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: 8px 15px;
  border-radius: 50px;
  margin-bottom: 20px;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 5px 15px rgba(58, 146, 98, 0.3);
}

.demo-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 20px;
  background: linear-gradient(to right, #ffffff, #a3e4ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.2;
}

.demo-description {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 30px;
  line-height: 1.6;
}

.demo-features {
  margin-bottom: 30px;
}

.demo-feature {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
}

.demo-feature-icon {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 20px;
  font-size: 1.5rem;
  color: var(--primary-color);
}

.demo-feature-text h5 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 5px;
  color: white;
}

.demo-feature-text p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
}

.demo-cta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.demo-video-btn {
  color: var(--primary-color);
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.3s ease;
}

.demo-video-btn:hover {
  color: white;
  transform: translateX(5px);
}

.demo-animation-wrapper {
  position: relative;
  width: 100%;
  height: 450px;
  perspective: 1000px;
}

.demo-animation-container {
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 1;
}

.demo-animation-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle at center,
    transparent 30%,
    rgba(15, 32, 39, 0.8) 100%
  );
  z-index: 2;
  pointer-events: none;
}

.demo-animation-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(58, 146, 98, 0.3) 0%,
    rgba(0, 176, 80, 0) 70%
  );
  filter: blur(30px);
  z-index: 0;
  animation: demo-glow 5s infinite alternate;
}

@keyframes demo-glow {
  0% {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(0.8);
  }
  100% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(1.2);
  }
}

/* Testimonials Section */
.testimonials-section {
  padding: 100px 0;
  background-color: #f9f9f9;
  position: relative;
  overflow: hidden;
}

.dark-theme .testimonials-section {
  background-color: #1a1a1a;
}

.testimonial-shape {
  position: absolute;
  opacity: 0.05;
  z-index: 0;
}

.testimonial-shape1 {
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: #3498db;
  border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
  animation: float-shape-slow 15s infinite alternate ease-in-out;
}

.testimonial-shape2 {
  bottom: -100px;
  left: -100px;
  width: 350px;
  height: 350px;
  background: #2ecc71;
  border-radius: 64% 36% 27% 73% / 55% 58% 42% 45%;
  animation: float-shape-slow 12s infinite alternate-reverse ease-in-out;
}

.testimonials-slider {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 30px;
  padding: 20px 0;
  gap: 20px;
  scrollbar-width: none; /* Firefox */
}

.testimonials-slider::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

.testimonial-card-modern {
  flex: 0 0 100%;
  max-width: 100%;
  scroll-snap-align: start;
  padding: 10px;
}

@media (min-width: 768px) {
  .testimonial-card-modern {
    flex: 0 0 calc(50% - 20px);
    max-width: calc(50% - 20px);
  }
}

@media (min-width: 992px) {
  .testimonial-card-modern {
    flex: 0 0 calc(33.333% - 20px);
    max-width: calc(33.333% - 20px);
  }
}

.testimonial-card-inner {
  background: white;
  border-radius: 16px;
  padding: 30px;
  height: 100%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.dark-theme .testimonial-card-inner {
  background: #2d2d2d;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.testimonial-card-inner:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 114, 255, 0.15);
}

.testimonial-header {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
  position: relative;
}

.testimonial-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
  margin-right: 15px;
  border: 3px solid #f0f0f0;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.dark-theme .testimonial-avatar {
  border-color: #444;
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-info {
  flex: 1;
}

.testimonial-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 5px;
  color: #333;
}

.dark-theme .testimonial-name {
  color: #f0f0f0;
}

.testimonial-role {
  font-size: 0.9rem;
  color: #666;
  margin: 0;
}

.dark-theme .testimonial-role {
  color: #aaa;
}

.testimonial-quote-icon {
  position: absolute;
  top: 0;
  right: 0;
  color: rgba(58, 146, 98, 0.1);
  font-size: 2rem;
}

.testimonial-content {
  margin-bottom: 20px;
  position: relative;
}

.testimonial-content p {
  font-size: 1rem;
  line-height: 1.6;
  color: #555;
  font-style: italic;
}

.dark-theme .testimonial-content p {
  color: #ccc;
}

.testimonial-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.testimonial-rating {
  color: #ffd700;
  font-size: 1rem;
}

.testimonial-date {
  font-size: 0.8rem;
  color: #999;
}

.testimonials-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  margin-top: 40px;
}

.testimonial-nav-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: white;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #333;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all 0.3s ease;
}

.dark-theme .testimonial-nav-btn {
  background: #2d2d2d;
  color: #f0f0f0;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.testimonial-nav-btn:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-3px);
}

.testimonial-dots {
  display: flex;
  gap: 8px;
}

.testimonial-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ddd;
  cursor: pointer;
  transition: all 0.3s ease;
}

.dark-theme .testimonial-dot {
  background: #555;
}

.testimonial-dot.active {
  background: var(--primary-color);
  transform: scale(1.2);
}

/* Call to Action Section */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: white;
  text-align: center;
}

.cta-title {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.cta-subtitle {
  font-size: 1.2rem;
  margin-bottom: 30px;
  opacity: 0.9;
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 1s ease-in-out;
}

.slide-up {
  animation: slideUp 0.8s ease-in-out;
}

.slide-in-right {
  animation: slideInRight 0.8s ease-in-out;
}

.slide-in-left {
  animation: slideInLeft 0.8s ease-in-out;
}

/* Section Animations */
.section-animated {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s ease, transform 1s ease;
}

.section-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Keyframes */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(50px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    transform: translateX(-50px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Responsive Styles */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .cta-title {
    font-size: 2rem;
  }
}

/* Math Chalkboard Background */
.chalkboard-bg {
  background: linear-gradient(135deg, #2a3439 0%, #1a2327 100%);
  position: relative;
  overflow: hidden;
}

/* Math Typing Animation */
.math-equations-typing {
  margin: 20px 0;
  min-height: 40px;
}

.typing-text {
  font-family: 'Courier New', monospace;
  font-size: 1.2rem;
  font-weight: bold;
  display: inline-block;
  position: relative;
  padding-right: 5px;
}

.typing-text::after {
  content: '|';
  position: absolute;
  right: 0;
  animation: blink 0.7s infinite;
}

/* 3D Math Container */
.math-3d-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.math-formula {
  position: absolute;
  color: rgba(255, 255, 255, 0.1);
  font-family: 'Cambria Math', 'STIX Two Math', 'Courier New', monospace;
  pointer-events: none;
}

.math-equation {
  position: absolute;
  font-family: 'Cambria Math', 'STIX Two Math', 'Courier New', monospace;
  color: rgba(255, 255, 255, 0.7);
  text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
  pointer-events: none;
  transition: transform 0.5s ease, opacity 0.5s ease;
}

/* Auth Pages */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  position: relative;
}

/* Auth specific styles for green theme */
.auth-card .btn-primary {
  background: linear-gradient(135deg, rgb(58, 146, 98), rgb(0, 176, 80));
  border: none;
  box-shadow: 0 5px 15px rgba(58, 146, 98, 0.4);
}

.auth-card .btn-primary:hover {
  background: linear-gradient(135deg, rgb(45, 120, 80), rgb(0, 150, 70));
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(58, 146, 98, 0.6);
}

.auth-card .form-control:focus {
  border-color: rgb(58, 146, 98);
  box-shadow: 0 0 0 0.25rem rgba(58, 146, 98, 0.25);
}

.auth-card .input-group-text {
  background: rgba(58, 146, 98, 0.1);
  border-color: rgba(58, 146, 98, 0.3);
  color: rgb(58, 146, 98);
}

.auth-card .animated-link {
  color: rgb(58, 146, 98);
  text-decoration: none;
  transition: all 0.3s ease;
}

.auth-card .animated-link:hover {
  color: rgb(0, 176, 80);
  text-decoration: underline;
}

.auth-card .gradient-text {
  background: linear-gradient(135deg, rgb(58, 146, 98), rgb(0, 176, 80));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.math-auth-bg {
  background: linear-gradient(135deg, rgb(58, 146, 98) 0%, rgb(0, 176, 80) 100%);
  overflow: hidden;
}

.auth-card {
  width: 100%;
  max-width: 450px;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  border: none;
}

.dark-theme .auth-card {
  background-color: #2d2d2d;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.auth-header {
  text-align: center;
  margin-bottom: 30px;
}

/* Math Icon Animation */
.math-icon-container {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, rgb(58, 146, 98), rgb(0, 176, 80));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  position: relative;
  overflow: hidden;
}

.math-icon-container::before {
  content: '';
  position: absolute;
  width: 150%;
  height: 150%;
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(45deg);
  top: -40%;
  left: -40%;
  animation: shine 3s infinite;
}

.math-icon-animated {
  font-size: 2.5rem;
  color: white;
  animation: bounce 2s infinite;
}

@keyframes shine {
  0% {
    left: -40%;
    top: -40%;
  }
  100% {
    left: 100%;
    top: 100%;
  }
}

@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Floating Math Symbols */
.floating-math-symbol {
  position: absolute;
  pointer-events: none;
  z-index: 0;
}

@keyframes float {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  50% {
    transform: translate(10px, -15px) rotate(5deg);
  }
  100% {
    transform: translate(-10px, 10px) rotate(-5deg);
  }
}

/* Math Particles Canvas */
.math-particles-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.auth-form {
  margin-bottom: 20px;
}

.auth-footer {
  text-align: center;
  margin-top: 20px;
}

.auth-separator {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 20px 0;
}

.auth-separator::before,
.auth-separator::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid #ddd;
}

.dark-theme .auth-separator::before,
.dark-theme .auth-separator::after {
  border-color: #444;
}

.auth-separator-text {
  padding: 0 10px;
}

/* 404 Page */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.error-code {
  font-size: 8rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 20px;
}

.error-message {
  font-size: 2rem;
  margin-bottom: 30px;
}

/* Student Photos Slider Styles */
.student-photos-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
  position: relative;
  overflow: hidden;
}

.student-photos-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
  pointer-events: none;
}

.student-photos-container {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.student-photos-slider {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 40px 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.slides-container {
  display: flex;
  gap: 40px;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  height: 100%;
  padding: 0 20px;
  transform: translateX(0);
}

.student-photo-card {
  position: relative;
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 15px;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(10px);
  width: 350px;
  height: 350px;
  flex-shrink: 0;
}

.student-photo-card:hover {
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border-color: rgba(58, 146, 98, 0.8);
}

.student-photo {
  position: relative;
  height: 100%;
  overflow: hidden;
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.student-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.4s ease;
  filter: brightness(1.1) contrast(1.1);
}

.student-photo-card:hover .student-photo img {
  transform: scale(1.1);
  filter: brightness(1.2) contrast(1.2);
}

.photo-glow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.student-photo-card:hover .photo-glow {
  transform: translateX(100%);
}

/* Slider Controls */
.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  margin-top: 30px;
  position: relative;
}

.slider-arrow {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.8);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  font-size: 1.2rem;
}

.slider-arrow:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  color: white;
  transform: scale(1.1);
}

.slider-arrow:active {
  transform: scale(0.95);
}

.slider-arrow:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none;
}

.slider-arrow:disabled:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.8);
  transform: none;
}

/* Slider Info */
.slider-info {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 8px 15px;
  border-radius: 20px;
  color: white;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.slide-separator {
  margin: 0 5px;
  opacity: 0.7;
}

/* Fallback Content */
.fallback-content {
  text-align: center;
  padding: 60px 20px;
  color: white;
}

.fallback-icon {
  font-size: 4rem;
  margin-bottom: 20px;
  opacity: 0.7;
}

.fallback-content h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  font-weight: 600;
}

.fallback-content p {
  font-size: 1rem;
  opacity: 0.8;
  max-width: 400px;
  margin: 0 auto;
}

/* Responsive Design */
@media (max-width: 768px) {
  .student-photos-section {
    padding: 60px 0;
  }
  
  .student-photos-slider {
    padding: 20px 15px;
  }
  
  .slides-container {
    gap: 25px;
  }
  
  .student-photo-card {
    width: 280px;
    height: 280px;
  }
  
  .slider-info {
    position: static;
    margin-top: 20px;
    display: inline-block;
  }
  
  .slider-controls {
    gap: 20px;
  }
  
  .slider-arrow {
    width: 45px;
    height: 45px;
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .slides-container {
    gap: 20px;
  }
  
  .student-photo-card {
    width: 220px;
    height: 220px;
  }
  
  .slider-controls {
    flex-direction: column;
    gap: 10px;
  }
}