/* ==========================================================================
   Ayakkabı Defteri Landing Page Design System & Styles
   Default Mode: Light Theme
   ========================================================================== */

/* --- CSS Variables & Color Palette --- */
:root {
  /* Font Family */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Base Colors - Default Light Mode */
  --bg-primary: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F1F5F9;
  --bg-translucent: rgba(255, 255, 255, 0.85);

  --text-main: #0F172A;
  --text-muted: #64748B;
  --text-light: #94A3B8;

  --border-color: #E2E8F0;
  --border-hover: #CBD5E1;

  /* Brand Accents */
  --primary: #4F46E5;
  --primary-hover: #4338CA;
  --primary-light: #EEF2FF;
  
  --sky: #0284C7;
  --sky-light: #F0F9FF;

  --emerald: #059669;
  --emerald-light: #ECFDF5;

  --teal: #0D9488;
  --teal-light: #F0FDFA;

  --rose: #E11D48;
  --rose-light: #FFF1F2;

  --purple: #9333EA;
  --purple-light: #F3E8FF;

  --amber: #D97706;
  --amber-light: #FFFBEB;

  --cyan: #0891B2;
  --cyan-light: #ECFEFF;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -5px rgba(79, 70, 229, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 40px rgba(79, 70, 229, 0.25);

  /* Radius & Transitions */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Overrides */
[data-theme="dark"] {
  --bg-primary: #0F172A;
  --bg-surface: #1E293B;
  --bg-surface-elevated: #334155;
  --bg-translucent: rgba(30, 41, 59, 0.85);

  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-light: #64748B;

  --border-color: #334155;
  --border-hover: #475569;

  --primary-light: rgba(79, 70, 229, 0.15);
  --sky-light: rgba(2, 132, 199, 0.15);
  --emerald-light: rgba(5, 150, 105, 0.15);
  --teal-light: rgba(13, 148, 136, 0.15);
  --rose-light: rgba(225, 29, 72, 0.15);
  --purple-light: rgba(147, 51, 234, 0.15);
  --amber-light: rgba(217, 119, 6, 0.15);
  --cyan-light: rgba(8, 145, 178, 0.15);

  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 50px rgba(99, 102, 241, 0.3);
}

/* Global Reset */
*, *::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(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  line-height: 1.25;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Background Animated Orbs */
.bg-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
}
.shape-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--primary) 0%, rgba(79, 70, 229, 0) 70%);
  top: -100px;
  right: -100px;
}
.shape-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--teal) 0%, rgba(13, 148, 136, 0) 70%);
  top: 600px;
  left: -150px;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography Utilities */
.text-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, #818CF8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.text-success { color: var(--emerald); }

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background-color: var(--bg-translucent);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  object-fit: cover;
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Theme Toggle Button */
.theme-toggle {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--border-hover);
  transform: scale(1.05);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

[data-theme="light"] .sun-icon { display: none; }
[data-theme="light"] .moon-icon { display: block; }
[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-primary {
  background-color: var(--primary);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
}

.btn-light {
  background-color: #FFFFFF;
  color: var(--primary);
  font-weight: 700;
}
.btn-light:hover {
  background-color: #F8FAFC;
  transform: translateY(-2px);
}

.btn-outline-light {
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #FFFFFF;
}
.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* Hamburger Mobile Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.mobile-menu-btn span {
  width: 24px;
  height: 2.5px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: all 0.3s;
}

/* --- Hero Section --- */
.hero-section {
  padding: 140px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
}
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--primary);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(79, 70, 229, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(79, 70, 229, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(79, 70, 229, 0); }
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.store-badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.store-badge-btn:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.store-badge-btn .btn-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.store-badge-btn .small {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}
.store-badge-btn .big {
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-heading);
}

/* Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}
.stat-item {
  display: flex;
  flex-direction: column;
}
.stat-number {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
}
.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.stat-divider {
  width: 1px;
  height: 36px;
  background-color: var(--border-color);
}

/* Phone Frame Visual */
.hero-visual {
  display: flex;
  justify-content: center;
}

.phone-frame {
  width: 320px;
  height: 620px;
  background: #111827;
  border: 12px solid #1F2937;
  border-radius: 44px;
  box-shadow: var(--shadow-glow), var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.phone-notch {
  width: 140px;
  height: 24px;
  background: #1F2937;
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  border-bottom-left-radius: 16px;
  border-bottom-right-radius: 16px;
  z-index: 10;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  overflow: hidden;
  padding: 0;
}

.phone-screen-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.screen-mockup {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 8px;
}
.mock-user {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mock-avatar {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}
.mock-name {
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.1;
}
.mock-subtitle {
  font-size: 0.65rem;
  color: var(--text-muted);
}
.mock-badge {
  font-size: 0.65rem;
  background: var(--emerald-light);
  color: var(--emerald);
  padding: 2px 6px;
  border-radius: 6px;
  font-weight: 600;
}

.mock-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 12px;
  border-radius: 14px;
}

.card-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #6366F1 100%);
  color: #FFFFFF;
  border: none;
}
.card-primary .card-label { color: rgba(255, 255, 255, 0.8); }
.card-primary .card-sub { color: #A7F3D0; }

.card-label { font-size: 0.7rem; color: var(--text-muted); font-weight: 500; }
.card-value { font-size: 1.3rem; font-weight: 800; font-family: var(--font-heading); }
.card-sub { font-size: 0.65rem; margin-top: 2px; }

.mock-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.card-accent .card-value { color: var(--rose); font-size: 1rem; }
.card-teal .card-value { color: var(--teal); font-size: 1rem; }

.mock-list {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 12px;
}
.list-title { font-size: 0.75rem; font-weight: 700; margin-bottom: 8px; }
.list-buttons { display: flex; flex-direction: column; gap: 6px; }
.mock-btn {
  font-size: 0.7rem;
  padding: 8px;
  border-radius: 8px;
  background: var(--bg-surface-elevated);
  font-weight: 600;
}
.mock-btn.active {
  background: var(--primary-light);
  color: var(--primary);
}

/* --- Section Layouts --- */
section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-tag {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.feature-card.highlighted {
  border-color: var(--primary);
  background: linear-gradient(180deg, var(--primary-light) 0%, var(--bg-surface) 100%);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.feature-icon svg { width: 26px; height: 26px; }

.icon-indigo { background: var(--primary-light); color: var(--primary); }
.icon-sky { background: var(--sky-light); color: var(--sky); }
.icon-emerald { background: var(--emerald-light); color: var(--emerald); }
.icon-rose { background: var(--rose-light); color: var(--rose); }
.icon-purple { background: var(--purple-light); color: var(--purple); }
.icon-amber { background: var(--amber-light); color: var(--amber); }
.icon-cyan { background: var(--cyan-light); color: var(--cyan); }
.icon-teal { background: var(--teal-light); color: var(--teal); }

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --- Size & Set Section --- */
.set-feature-section {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.set-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.set-card-preview {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.set-header {
  margin-bottom: 1.5rem;
}
.set-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: 0.05em;
}
.set-header h3 {
  font-size: 1.4rem;
  font-weight: 800;
}

.shoes-sizes-demo {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 1.5rem;
}

.size-box {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}
.size-box.active {
  background: var(--teal-light);
  color: var(--teal);
  border: 2px solid var(--teal);
}
.size-box.muted {
  background: var(--bg-surface-elevated);
  color: var(--text-light);
  border: 1px solid var(--border-color);
}

.set-buttons-demo {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.set-btn-demo {
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
}

.set-btn-demo.garson {
  background: var(--teal-light);
  border-color: var(--teal);
  color: var(--teal);
}

.set-btn-demo.merdane {
  background: var(--sky-light);
  border-color: var(--sky);
  color: var(--sky);
}

.set-btn-demo span { font-size: 0.85rem; font-weight: 600; }
.set-btn-demo strong { font-size: 0.95rem; }

.check-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1rem;
  color: var(--text-muted);
}

.check-list svg {
  width: 22px;
  height: 22px;
  color: var(--emerald);
  flex-shrink: 0;
  margin-top: 2px;
}

.check-list strong {
  color: var(--text-main);
}

/* --- Screenshots Showcase Section --- */
.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.screenshot-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.screenshot-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.screenshot-wrapper {
  width: 100%;
  height: 380px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface-elevated);
}

.screenshot-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.screenshot-card:hover .screenshot-wrapper img {
  transform: scale(1.03);
}

.screenshot-caption {
  padding: 1.25rem;
}

.screenshot-caption h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.screenshot-caption p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(8px);
}

.lightbox-content {
  position: relative;
  z-index: 10;
  max-width: 90%;
  max-height: 90%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.lightbox-content h3 {
  color: #FFFFFF;
  font-size: 1.2rem;
}

.lightbox-close {
  position: absolute;
  top: -44px;
  right: 0;
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 2.5rem;
  cursor: pointer;
  z-index: 25;
  transition: transform var(--transition-fast);
}

.lightbox-close:hover {
  transform: scale(1.15);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #FFFFFF;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 20;
  transition: all var(--transition-fast);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.lightbox-nav:hover {
  background: rgba(255, 255, 255, 0.35);
  transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
  left: -70px;
}

.lightbox-next {
  right: -70px;
}

.lightbox-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: 1rem;
}

.lightbox-counter {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.1);
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

@media (max-width: 768px) {
  .lightbox-prev {
    left: 10px;
  }
  .lightbox-next {
    right: 10px;
  }
}

/* --- FAQ Accordion --- */
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--primary);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: none;
  border: none;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-main);
  text-align: left;
  cursor: pointer;
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.5rem;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- Bottom CTA Banner --- */
.cta-banner-section {
  padding: 60px 0 90px;
}

.cta-card {
  background: linear-gradient(135deg, var(--primary) 0%, #4338CA 100%);
  border-radius: 32px;
  padding: 4rem 2rem;
  text-align: center;
  color: #FFFFFF;
  box-shadow: 0 20px 40px rgba(79, 70, 229, 0.3);
  position: relative;
  overflow: hidden;
}

.cta-card h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 1rem;
}

.cta-card p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* --- Footer --- */
.footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 70px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand-col .brand {
  margin-bottom: 1rem;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 320px;
}

.footer-links-col h4,
.footer-contact-col h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.footer-links-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links-col a {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.footer-links-col a:hover {
  color: var(--primary);
}

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.contact-list svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
}

.contact-list a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* --- Responsive Media Queries --- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-title { font-size: 2.5rem; }
  .hero-cta-group { justify-content: center; }
  .hero-stats { justify-content: center; }
  .set-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 76px;
    left: 0;
    width: 100%;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    display: none;
    box-shadow: var(--shadow-md);
  }
  .nav-links.active {
    display: flex;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2rem;
  }
  .cta-card h2 {
    font-size: 1.8rem;
  }
}