@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');
@import url('https://cdn.jsdelivr.net/npm/remixicon@2.5.0/fonts/remixicon.css');

/* ============================================
   CSS VARIABLES - UČIONICA PLUS COLOR SCHEME
   ============================================ */
:root {
  /* Primary Palette - Warm Academic */
  --color-primary: #6B3FA0;
  --color-primary-light: #8B5CC8;
  --color-primary-dark: #4A2878;
  --color-primary-ultra-light: #F0E8FF;

  /* Secondary Palette - Warm Amber */
  --color-secondary: #F59E0B;
  --color-secondary-light: #FCD34D;
  --color-secondary-dark: #D97706;
  --color-secondary-ultra-light: #FFF8E7;

  /* Accent - Coral Education */
  --color-accent: #E8614D;
  --color-accent-light: #F08070;
  --color-accent-dark: #C44533;
  --color-accent-ultra-light: #FFF0EE;

  /* Teal Highlight */
  --color-teal: #0E9F8E;
  --color-teal-light: #2EC4B0;
  --color-teal-dark: #097A6C;
  --color-teal-ultra-light: #E6FAF8;

  /* Neutral Tones */
  --color-neutral-50: #FAF9FF;
  --color-neutral-100: #F3F0FA;
  --color-neutral-200: #E8E2F5;
  --color-neutral-300: #D1C8E8;
  --color-neutral-400: #A99DC0;
  --color-neutral-500: #7D6F9A;
  --color-neutral-600: #5A4E75;
  --color-neutral-700: #3D3452;
  --color-neutral-800: #261D38;
  --color-neutral-900: #140D22;

  /* Semantic */
  --color-success: #22C55E;
  --color-warning: #F59E0B;
  --color-error: #EF4444;
  --color-info: #6B3FA0;

  /* Typography */
  --font-heading: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body: 'Segoe UI', system-ui, -apple-system, sans-serif;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(107, 63, 160, 0.08), 0 1px 2px rgba(107, 63, 160, 0.06);
  --shadow-md: 0 4px 16px rgba(107, 63, 160, 0.12), 0 2px 6px rgba(107, 63, 160, 0.08);
  --shadow-lg: 0 10px 32px rgba(107, 63, 160, 0.18), 0 4px 12px rgba(107, 63, 160, 0.10);
  --shadow-xl: 0 20px 48px rgba(107, 63, 160, 0.22), 0 8px 20px rgba(107, 63, 160, 0.14);
  --shadow-colored: 0 8px 24px rgba(107, 63, 160, 0.35);
  --shadow-amber: 0 8px 24px rgba(245, 158, 11, 0.35);
  --shadow-teal: 0 8px 24px rgba(14, 159, 142, 0.35);

  /* Borders */
  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 18px;
  --border-radius-xl: 28px;
  --border-radius-full: 9999px;

  /* Transitions */
  --transition-fast: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #6B3FA0 0%, #8B5CC8 50%, #A87DE0 100%);
  --gradient-secondary: linear-gradient(135deg, #F59E0B 0%, #FCD34D 100%);
  --gradient-hero: linear-gradient(135deg, #4A2878 0%, #6B3FA0 40%, #8B5CC8 70%, #0E9F8E 100%);
  --gradient-warm: linear-gradient(135deg, #E8614D 0%, #F59E0B 100%);
  --gradient-cool: linear-gradient(135deg, #6B3FA0 0%, #0E9F8E 100%);
  --gradient-card: linear-gradient(145deg, #FFFFFF 0%, #F3F0FA 100%);
  --gradient-dark: linear-gradient(135deg, #261D38 0%, #4A2878 100%);

  /* Spacing */
  --header-height: 72px;
  --section-padding: 80px;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-neutral-50);
  color: var(--color-neutral-700);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   CUSTOM SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-neutral-100);
  border-radius: var(--border-radius-full);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-primary-light), var(--color-primary-dark));
  border-radius: var(--border-radius-full);
  border: 2px solid var(--color-neutral-100);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
}

::-webkit-scrollbar-corner {
  background: var(--color-neutral-100);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-neutral-800);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.875rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.375rem); }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  color: var(--color-neutral-600);
  line-height: 1.75;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

/* ============================================
   STICKY HEADER
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(250, 249, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(107, 63, 160, 0.10);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.site-header.scrolled {
  background: rgba(250, 249, 255, 0.98);
  box-shadow: var(--shadow-md);
  border-bottom-color: rgba(107, 63, 160, 0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  gap: 24px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: white;
  box-shadow: var(--shadow-colored);
  transition: var(--transition-bounce);
}

.site-logo:hover .logo-icon {
  transform: rotate(-8deg) scale(1.08);
  box-shadow: var(--shadow-xl);
}

.site-logo .logo-text {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--color-neutral-800);
  letter-spacing: -0.03em;
}

.site-logo .logo-text span {
  color: var(--color-primary);
}

.site-logo .logo-text .plus {
  color: var(--color-secondary-dark);
}

/* Main Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.main-nav li a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-neutral-600);
  border-radius: var(--border-radius-md);
  transition: var(--transition-fast);
  position: relative;
  text-decoration: none;
}

.main-nav li a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: calc(100% - 28px);
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-full);
  transition: var(--transition-fast);
}

.main-nav li a:hover {
  color: var(--color-primary);
  background: var(--color-primary-ultra-light);
}

.main-nav li a:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.main-nav li a.active {
  color: var(--color-primary);
  background: var(--color-primary-ultra-light);
}

.main-nav li a.active::after {
  transform: translateX(-50%) scaleX(1);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* Hamburger Button */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  background: var(--color-primary-ultra-light);
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
  padding: 8px;
}

.hamburger-btn:hover {
  background: var(--color-neutral-200);
}

.hamburger-btn .bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--border-radius-full);
  transition: var(--transition-fast);
}

.hamburger-btn.active .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.active .bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger-btn.active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   MOBILE MENU
   ============================================ */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: rgba(250, 249, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 2px solid rgba(107, 63, 160, 0.12);
  box-shadow: var(--shadow-lg);
  z-index: 999;
  max-height: calc(100vh - var(--header-height));
  overflow-y: auto;
  transform: translateY(-10px);
  opacity: 0;
  transition: var(--transition-base);
  pointer-events: none;
}

.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-menu-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 24px 24px;
}

.mobile-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 16px;
}

.mobile-nav li a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-neutral-700);
  border-radius: var(--border-radius-md);
  transition: var(--transition-fast);
  text-decoration: none;
}

.mobile-nav li a i {
  font-size: 1.2rem;
  color: var(--color-primary);
  width: 24px;
  text-align: center;
}

.mobile-nav li a:hover {
  background: var(--color-primary-ultra-light);
  color: var(--color-primary);
}

.mobile-nav-divider {
  height: 1px;
  background: var(--color-neutral-200);
  margin: 8px 0;
}

.mobile-menu-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 8px;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: var(--border-radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition-bounce);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.01em;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.15);
  opacity: 0;
  transition: var(--transition-fast);
}

.btn:hover::before {
  opacity: 1;
}

/* Primary Button */
.btn-primary {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
  box-shadow: var(--shadow-colored);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(107, 63, 160, 0.45);
  color: white;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-colored);
}

/* Secondary Button */
.btn-secondary {
  background: var(--gradient-secondary);
  color: var(--color-neutral-800);
  border-color: transparent;
  box-shadow: var(--shadow-amber);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(245, 158, 11, 0.45);
  color: var(--color-neutral-800);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-colored);
}

/* Ghost Button */
.btn-ghost {
  background: transparent;
  color: var(--color-neutral-600);
  border-color: var(--color-neutral-300);
}

.btn-ghost:hover {
  background: var(--color-neutral-100);
  color: var(--color-neutral-800);
  border-color: var(--color-neutral-400);
  transform: translateY(-1px);
}

/* Teal Button */
.btn-teal {
  background: linear-gradient(135deg, var(--color-teal) 0%, var(--color-teal-light) 100%);
  color: white;
  border-color: transparent;
  box-shadow: var(--shadow-teal);
}

.btn-teal:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(14, 159, 142, 0.45);
  color: white;
}

/* Accent Button */
.btn-accent {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
  color: white;
  border-color: transparent;
  box-shadow: 0 8px 24px rgba(232, 97, 77, 0.35);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(232, 97, 77, 0.5);
  color: white;
}

/* Button Sizes */
.btn-sm {
  padding: 8px 16px;
  font-size: 0.825rem;
  border-radius: var(--border-radius-sm);
}

.btn-lg {
  padding: 15px 32px;
  font-size: 1rem;
  border-radius: var(--border-radius-lg);
}

.btn-xl {
  padding: 18px 40px;
  font-size: 1.1rem;
  border-radius: var(--border-radius-lg);
  letter-spacing: 0.02em;
}

.btn-full {
  width: 100%;
}

/* Icon Button */
.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--border-radius-md);
}

.btn-icon.btn-sm {
  width: 36px;
  height: 36px;
}

/* Pulse Effect for CTA */
.btn-pulse {
  animation: btnPulse 2.5s ease-in-out infinite;
}

@keyframes btnPulse {
  0%, 100% { box-shadow: var(--shadow-colored); }
  50% { box-shadow: 0 0 0 8px rgba(107, 63, 160, 0.15), var(--shadow-colored); }
}

/* ============================================
   COOKIE BANNER
   ============================================ */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: var(--color-neutral-800);
  border-top: 3px solid var(--color-primary);
  box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.25);
  transform: translateY(100%);
  transition: var(--transition-slow);
  backdrop-filter: blur(10px);
}

.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-banner-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.cookie-icon {
  font-size: 2rem;
  flex-shrink: 0;
  animation: cookieWiggle 2s ease-in-out infinite;
}

@keyframes cookieWiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-10deg); }
  75% { transform: rotate(10deg); }
}

.cookie-content {
  flex: 1;
  min-width: 240px;
}

.cookie-content h4 {
  color: white;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.cookie-content p {
  color: var(--color-neutral-300);
  font-size: 0.85rem;
  line-height: 1.5;
  margin: 0;
}

.cookie-content a {
  color: var(--color-secondary-light);
  font-weight: 600;
  text-decoration: underline;
}

.cookie-content a:hover {
  color: var(--color-secondary);
}

.cookie-actions {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.cookie-btn-accept {
  background: var(--gradient-primary);
  color: white;
  padding: 10px 22px;
  border: none;
  border-radius: var(--border-radius-md);
  font-weight: 700;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition-bounce);
  box-shadow: var(--shadow-colored);
}

.cookie-btn-accept:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(107, 63, 160, 0.5);
}

.cookie-btn-decline {
  background: transparent;
  color: var(--color-neutral-400);
  padding: 10px 18px;
  border: 1px solid var(--color-neutral-600);
  border-radius: var(--border-radius-md);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.cookie-btn-decline:hover {
  border-color: var(--color-neutral-400);
  color: white;
}

.cookie-btn-settings {
  background: transparent;
  color: var(--color-neutral-400);
  padding: 10px 14px;
  border: none;
  border-radius: var(--border-radius-md);
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition-fast);
  text-decoration: underline;
}

.cookie-btn-settings:hover {
  color: var(--color-secondary-light);
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-neutral-700);
  display: flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.01em;
}

.form-label .label-icon {
  color: var(--color-primary);
  font-size: 1rem;
}

.form-label .required {
  color: var(--color-accent);
  font-size: 1rem;
  line-height: 1;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  font-size: 0.95rem;
  font-family: var(--font-body);
  color: var(--color-neutral-800);
  background: white;
  border: 2px solid var(--color-neutral-200);
  border-radius: var(--border-radius-md);
  transition: var(--transition-fast);
  outline: none;
  line-height: 1.5;
}

.form-control::placeholder {
  color: var(--color-neutral-400);
}

.form-control:focus {
  border-color: var(--color-primary);
  background: var(--color-primary-ultra-light);
  box-shadow: 0 0 0 4px rgba(107, 63, 160, 0.12);
  color: var(--color-neutral-800);
}

.form-control:hover:not(:focus) {
  border-color: var(--color-neutral-300);
}

.form-control.is-valid {
  border-color: var(--color-success);
  background: #F0FFF4;
}

.form-control.is-valid:focus {
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.12);
}

.form-control.is-invalid {
  border-color: var(--color-error);
  background: #FFF5F5;
}

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.12);
}

/* Select */
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='%236B3FA0' 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 14px center;
  padding-right: 42px;
  cursor: pointer;
}

/* Textarea */
textarea.form-control {
  resize: vertical;
  min-height: 130px;
  line-height: 1.65;
}

/* Input with Icon */
.input-group {
  position: relative;
}

.input-group .input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-neutral-400);
  font-size: 1.1rem;
  transition: var(--transition-fast);
  pointer-events: none;
}

.input-group .form-control {
  padding-left: 42px;
}

.input-group:focus-within .input-icon {
  color: var(--color-primary);
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  min-width: 20px;
  border: 2px solid var(--color-neutral-300);
  border-radius: 5px;
  background: white;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  margin-top: 2px;
}

.form-check input[type="radio"] {
  border-radius: 50%;
}

.form-check input[type="checkbox"]:checked,
.form-check input[type="radio"]:checked {
  background: var(--gradient-primary);
  border-color: var(--color-primary);
}

.form-check input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 0.8rem;
  font-weight: 900;
  line-height: 1;
}

.form-check input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: white;
}

.form-check input[type="checkbox"]:focus,
.form-check input[type="radio"]:focus {
  box-shadow: 0 0 0 4px rgba(107, 63, 160, 0.15);
  outline: none;
}

.form-check-label {
  font-size: 0.9rem;
  color: var(--color-neutral-600);
  line-height: 1.5;
  cursor: pointer;
}

/* Form Feedback */
.form-feedback {
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 2px;
}

.form-feedback.valid {
  color: var(--color-success);
}

.form-feedback.invalid {
  color: var(--color-error);
}

.form-hint {
  font-size: 0.8rem;
  color: var(--color-neutral-400);
  margin-top: 2px;
}

/* Form Card */
.form-card {
  background: white;
  border-radius: var(--border-radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-neutral-200);
  position: relative;
  overflow: hidden;
}

.form-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: white;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-neutral-200);
  transition: var(--transition-base);
  position: relative;
}

.card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
  border-color: rgba(107, 63, 160, 0.15);
}

.card-header {
  padding: 24px 28px 0;
}

.card-body {
  padding: 20px 28px 24px;
}

.card-footer {
  padding: 16px 28px 24px;
  border-top: 1px solid var(--color-neutral-100);
}

/* Course Card */
.course-card {
  background: white;
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-neutral-200);
  transition: var(--transition-base);
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
  border-color: rgba(107, 63, 160, 0.2);
}

.course-card .course-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}

.course-card .course-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.course-card:hover .course-image img {
  transform: scale(1.06);
}

.course-card .course-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  border-radius: var(--border-radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background: var(--gradient-primary);
  color: white;
}

.badge-secondary {
  background: var(--gradient-secondary);
  color: var(--color-neutral-800);
}

.badge-teal {
  background: linear-gradient(135deg, var(--color-teal), var(--color-teal-light));
  color: white;
}

.badge-accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: white;
}

.course-card .course-body {
  padding: 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-card .course-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.course-card .course-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-neutral-800);
  line-height: 1.35;
  margin-bottom: 10px;
}

.course-card .course-meta {
  display: flex;
  gap: 14px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.course-card .meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.82rem;
  color: var(--color-neutral-500);
  font-weight: 500;
}

.course-card .meta-item i {
  color: var(--color-primary-light);
  font-size: 1rem;
}

.course-card .course-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
}

.course-card .stars {
  display: flex;
  gap: 2px;
  color: var(--color-secondary);
}

.course-card .rating-count {
  font-size: 0.82rem;
  color: var(--color-neutral-400);
}

.course-card .course-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--color-neutral-100);
}

.course-card .course-price {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-primary);
}

.course-card .course-price .price-old {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-neutral-400);
  text-decoration: line-through;
  margin-right: 6px;
}

/* Feature Card */
.feature-card {
  background: white;
  border-radius: var(--border-radius-xl);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-neutral-200);
  transition: var(--transition-base);
  text-align: center;
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: rgba(107, 63, 160, 0.2);
}

.feature-card .feature-icon {
  width: 68px;
  height: 68px;
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 20px;
  transition: var(--transition-bounce);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(-5deg);
}

.feature-icon-primary {
  background: var(--color-primary-ultra-light);
  color: var(--color-primary);
}

.feature-icon-secondary {
  background: var(--color-secondary-ultra-light);
  color: var(--color-secondary-dark);
}

.feature-icon-teal {
  background: var(--color-teal-ultra-light);
  color: var(--color-teal);
}

.feature-icon-accent {
  background: var(--color-accent-ultra-light);
  color: var(--color-accent);
}

/* Testimonial Card */
.testimonial-card {
  background: white;
  border-radius: var(--border-radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-neutral-200);
  transition: var(--transition-base);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 16px;
  right: 24px;
  font-size: 5rem;
  font-family: Georgia, serif;
  color: var(--color-primary-ultra-light);
  line-height: 1;
  font-weight: 900;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.testimonial-card .avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-primary-ultra-light);
}

.testimonial-card .testimonial-text {
  font-size: 0.95rem;
  color: var(--color-neutral-600);
  line-height: 1.7;
  font-style: italic;
  margin: 14px 0;
}

/* ============================================
   ACCORDION / COLLAPSE
   ============================================ */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accordion-item {
  background: white;
  border-radius: var(--border-radius-lg);
  border: 2px solid var(--color-neutral-200);
  overflow: hidden;
  transition: var(--transition-fast);
}

.accordion-item.open {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  cursor: pointer;
  user-select: none;
  transition: var(--transition-fast);
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
}

.accordion-header:hover {
  background: var(--color-neutral-50);
}

.accordion-item.open .accordion-header {
  background: var(--color-primary-ultra-light);
}

.accordion-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-neutral-800);
  line-height: 1.35;
}

.accordion-title i {
  color: var(--color-primary);
  font-size: 1.15rem;
  flex-shrink: 0;
}

.accordion-item.open .accordion-title {
  color: var(--color-primary);
}

.accordion-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition-fast);
  color: var(--color-neutral-500);
}

.accordion-item.open .accordion-icon {
  background: var(--color-primary);
  color: white;
  transform: rotate(45deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-item.open .accordion-body {
  max-height: 600px;
}

.accordion-content {
  padding: 0 22px 20px;
  font-size: 0.95rem;
  color: var(--color-neutral-600);
  line-height: 1.75;
}

.accordion-content ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.accordion-content ul li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
}

.accordion-content ul li::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding: 100px 0 80px;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  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='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 80px;
  background: var(--color-neutral-50);
  clip-path: ellipse(55% 100% at 50% 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--border-radius-full);
  font-size: 0.825rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  margin-bottom: 22px;
  letter-spacing: 0.03em;
}

.hero-badge i {
  color: var(--color-secondary-light);
  font-size: 1rem;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.75rem);
  font-weight: 900;
  color: white;
  line-height: 1.1;
  margin-bottom: 22px;
  letter-spacing: -0.03em;
}

.hero-title .highlight {
  background: var(--gradient-secondary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat .stat-number {
  font-size: 1.8rem;
  font-weight: 900;
  color: white;
  line-height: 1;
  letter-spacing: -0.02em;
}

.hero-stat .stat-label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 500;
  margin-top: 3px;
}

/* Floating elements in hero */
.hero-floating {
  position: relative;
  z-index: 2;
}

.floating-card {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-xl);
  padding: 20px;
  color: white;
  transition: var(--transition-base);
}

.floating-mini {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--border-radius-full);
  padding: 10px 18px;
  font-size: 0.875rem;
  font-weight: 700;
  color: white;
  animation: floatUp 3s ease-in-out infinite;
}

@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.floating-mini:nth-child(2) { animation-delay: 0.5s; }
.floating-mini:nth-child(3) { animation-delay: 1s; }

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: var(--section-padding) 0;
}

.section-sm {
  padding: 48px 0;
}

.section-lg {
  padding: 120px 0;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-sm {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--color-primary-ultra-light);
  border: 1px solid rgba(107, 63, 160, 0.15);
  border-radius: var(--border-radius-full);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.section-label i {
  font-size: 1rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--color-neutral-800);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-title .highlight-text {
  color: var(--color-primary);
}

.section-description {
  font-size: 1.05rem;
  color: var(--color-neutral-500);
  line-height: 1.75;
}

/* Alternate section backgrounds */
.section-light {
  background: var(--color-neutral-50);
}

.section-white {
  background: white;
}

.section-primary {
  background: var(--gradient-primary);
  color: white;
}

.section-dark {
  background: var(--gradient-dark);
  color: white;
}

.section-warm {
  background: linear-gradient(135deg, #FFF8E7 0%, #FFF0EE 100%);
}

.section-purple-light {
  background: linear-gradient(135deg, var(--color-neutral-100) 0%, var(--color-primary-ultra-light) 100%);
}

/* ============================================
   GRID LAYOUTS
   ============================================ */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

/* ============================================
   STATS SECTION
   ============================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-neutral-200);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.stat-item {
  background: white;
  padding: 36px 24px;
  text-align: center;
  transition: var(--transition-fast);
}

.stat-item:hover {
  background: var(--color-primary-ultra-light);
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-neutral-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-icon {
  font-size: 1.5rem;
  color: var(--color-primary-light);
  margin-bottom: 10px;
}

/* ============================================
   PRICING SECTION
   ============================================ */
.pricing-card {
  background: white;
  border-radius: var(--border-radius-xl);
  padding: 36px 32px;
  box-shadow: var(--shadow-md);
  border: 2px solid var(--color-neutral-200);
  transition: var(--transition-base);
  position: relative;
  display: flex;
  flex-direction: column;
}

.pricing-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.pricing-card.featured {
  background: var(--gradient-primary);
  border-color: transparent;
  box-shadow: var(--shadow-colored);
  transform: scale(1.04);
}

.pricing-card.featured:hover {
  transform: scale(1.04) translateY(-6px);
  box-shadow: 0 24px 60px rgba(107, 63, 160, 0.4);
}

.pricing-card .popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-secondary);
  color: var(--color-neutral-800);
  padding: 5px 20px;
  border-radius: var(--border-radius-full);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  box-shadow: var(--shadow-amber);
  white-space: nowrap;
}

.pricing-card .plan-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.pricing-card.featured .plan-name {
  color: rgba(255, 255, 255, 0.85);
}

.pricing-card .plan-price {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  margin: 16px 0;
}

.pricing-card .price-amount {
  font-size: 3rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -0.03em;
}

.pricing-card.featured .price-amount {
  color: white;
}

.pricing-card .price-period {
  font-size: 0.9rem;
  color: var(--color-neutral-400);
  margin-bottom: 6px;
}

.pricing-card.featured .price-period {
  color: rgba(255, 255, 255, 0.7);
}

.pricing-card .plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: