/* ==========================================
   Design Tokens & CSS Variables
   ========================================== */
:root {
  /* Color Palette - Dark Theme (Default) */
  --bg-main: #090d16;
  --bg-surface: #111827;
  --bg-glass: rgba(17, 24, 39, 0.7);
  --bg-glass-card: rgba(255, 255, 255, 0.03);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(99, 102, 241, 0.4);
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  /* Accent Colors */
  --accent-primary: #6366f1; /* Indigo */
  --accent-secondary: #38bdf8; /* Cyan */
  --accent-emerald: #10b981; /* Green */
  --accent-amber: #f59e0b; /* Amber */
  --accent-purple: #8b5cf6; /* Purple */

  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #38bdf8 100%);
  --gradient-amber: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-emerald: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);

  /* Typography */
  --font-sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', 'Noto Sans KR', sans-serif;

  /* Layout & Shadows */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-glow: 0 10px 30px -10px rgba(99, 102, 241, 0.3);
  --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.4);

  --transition-speed: 0.3s;
}

/* Light Theme Variables */
body.light-theme {
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --bg-glass-card: rgba(0, 0, 0, 0.02);
  --border-color: rgba(0, 0, 0, 0.08);
  --border-highlight: rgba(99, 102, 241, 0.5);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.06);
}

/* Base Resets */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  overflow-x: hidden;
  line-height: 1.6;
}

/* Global Background Graphic Effects */
body::before {
  content: '';
  position: fixed;
  top: -200px;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, rgba(0,0,0,0) 70%);
  z-index: 0;
  pointer-events: none;
}

body::after {
  content: '';
  position: fixed;
  bottom: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, rgba(0,0,0,0) 70%);
  z-index: 0;
  pointer-events: none;
}

/* ==========================================
   Header Bar
   ========================================== */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
}

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

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.2rem;
  box-shadow: var(--shadow-glow);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-text .title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.brand-text .badge {
  font-size: 0.7rem;
  color: var(--accent-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.mode-switch {
  display: flex;
  background: rgba(0, 0, 0, 0.2);
  padding: 4px;
  border-radius: 30px;
  border: 1px solid var(--border-color);
}

.mode-switch button {
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 20px;
  cursor: pointer;
  transition: all var(--transition-speed);
  display: flex;
  align-items: center;
  gap: 6px;
}

.mode-switch button.active {
  background: var(--gradient-primary);
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.4);
}

.controls button:not(.mode-switch button) {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
}

.controls button:hover {
  border-color: var(--accent-primary);
  color: var(--accent-secondary);
}

/* Progress Indicator Bar */
.progress-container {
  position: fixed;
  top: 64px;
  left: 0;
  width: 100%;
  height: 3px;
  background: transparent;
  z-index: 99;
}

.progress-bar {
  height: 100%;
  width: 16.66%;
  background: var(--gradient-primary);
  transition: width 0.4s ease;
  box-shadow: 0 0 10px var(--accent-primary);
}

/* ==========================================
   Presentation Main Container
   ========================================== */
.presentation-wrapper {
  position: relative;
  z-index: 1;
  margin-top: 67px;
  width: 100%;
  min-height: calc(100vh - 130px);
}

/* Slide Section Styling */
.slide-section {
  display: none;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem 2rem;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Slide Mode: Active Slide */
body.mode-slide .slide-section.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
  animation: slideFadeIn 0.5s ease forwards;
}

@keyframes slideFadeIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Scroll Mode: Display all slides continuously */
body.mode-scroll .slide-section {
  display: block !important;
  opacity: 1 !important;
  transform: none !important;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 5rem;
}

/* Slide Titles & Headers */
.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid var(--border-highlight);
  color: var(--accent-secondary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.main-title {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 1rem;
}

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

.main-title .highlight-sub {
  font-size: 1.8rem;
  color: var(--accent-secondary);
  font-weight: 600;
  display: inline-block;
  margin-top: 4px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.section-title .sub-heading {
  font-size: 1.2rem;
  color: var(--accent-secondary);
  font-weight: 500;
  margin-left: 10px;
}

.subtitle, .section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 800px;
  margin-bottom: 2.5rem;
}

/* Card Components (Glassmorphism) */
.glass-card {
  background: var(--bg-surface);
  background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.005) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  transition: transform var(--transition-speed), border-color var(--transition-speed);
}

.glass-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
}

.glass-card.highlight-border {
  border-color: var(--accent-amber);
  box-shadow: 0 10px 30px -10px rgba(245, 158, 11, 0.2);
}

/* Grids */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.8rem;
}

/* Section 1: Feature Cards */
.feature-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #ffffff;
}

.card-icon.blue { background: var(--gradient-primary); }
.card-icon.amber { background: var(--gradient-amber); }
.card-icon.emerald { background: var(--gradient-emerald); }

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
}

.concept-box {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid var(--accent-amber);
  color: #fbbf24;
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1.05rem;
}

.key-summary-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  padding: 1.2rem 2rem;
  border-radius: var(--radius-md);
  margin-top: 1rem;
}

.summary-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--text-main);
}

.summary-item i {
  color: var(--accent-emerald);
}

/* Section 2: Hybrid Layout Cards */
.hybrid-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.8rem;
}

.hybrid-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.2rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.8rem;
}

.step-num {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  background: var(--gradient-primary);
  color: #fff;
  padding: 2px 10px;
  border-radius: 6px;
}

.hybrid-header h3 {
  font-size: 1.2rem;
}

.mockup-preview {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  margin-bottom: 1.2rem;
}

.mockup-card-item {
  display: flex;
  gap: 12px;
  align-items: center;
}

.mockup-img {
  width: 100px;
  height: 70px;
  background: rgba(99, 102, 241, 0.2);
  border: 1px dashed var(--accent-primary);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--accent-secondary);
}

.mockup-lines {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mockup-lines .line {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.mockup-lines .line.title-line {
  height: 12px;
  width: 80%;
  background: var(--accent-primary);
}

.mockup-lines .line.short { width: 50%; }

.summary-box-mock {
  background: rgba(56, 189, 248, 0.12);
  border-left: 4px solid var(--accent-secondary);
  padding: 10px;
  font-size: 0.85rem;
  margin-bottom: 10px;
  border-radius: 4px;
}

.content-body-mock {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.tag-group-mock {
  margin-top: 8px;
  color: var(--accent-emerald);
  font-weight: 600;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.feature-list li i {
  color: var(--accent-secondary);
  margin-top: 4px;
}

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

/* Section 3: AdSense Strategy Rules & Checklist */
.rules-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.rule-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.2rem 1.5rem;
}

.rule-icon {
  width: 42px;
  height: 42px;
  min-width: 42px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #fff;
}

.rule-icon.purple { background: var(--accent-purple); }
.rule-icon.cyan { background: var(--accent-secondary); }
.rule-icon.orange { background: var(--accent-amber); }
.rule-icon.green { background: var(--accent-emerald); }

.rule-text h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.rule-text p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.checklist-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.checklist-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 1.5rem;
  color: var(--accent-amber);
}

.checklist-header h3 {
  font-size: 1.25rem;
  color: var(--text-main);
}

.checklist-body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.02);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  transition: all 0.2s;
}

.check-item:hover {
  border-color: var(--accent-amber);
}

.check-item input {
  display: none;
}

.checkmark {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 2px solid var(--text-dim);
  position: relative;
  transition: all 0.2s;
}

.check-item input:checked + .checkmark {
  background: var(--accent-amber);
  border-color: var(--accent-amber);
}

.check-item input:checked + .checkmark::after {
  content: '✓';
  position: absolute;
  top: -2px;
  left: 3px;
  color: #000;
  font-weight: 900;
  font-size: 0.85rem;
}

.label-text {
  font-size: 0.9rem;
  color: var(--text-main);
}

.checklist-footer {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.readiness-meter {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.meter-bar {
  flex: 1;
  height: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  background: var(--gradient-amber);
  transition: width 0.5s ease;
}

.meter-val {
  color: var(--accent-amber);
  font-size: 1.1rem;
}

/* Section 4: IA & Wireframe */
.ia-design-wrapper {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 1.8rem;
}

.wireframe-card {
  padding: 0;
  overflow: hidden;
  border-color: rgba(99, 102, 241, 0.3);
}

.wireframe-toolbar {
  background: rgba(0, 0, 0, 0.4);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border-color);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.browser-url {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-left: 10px;
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 14px;
  border-radius: 12px;
  width: 60%;
}

.wireframe-body {
  padding: 1.2rem;
  background: #0d1322;
  font-size: 0.85rem;
}

.wf-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: 12px;
}

.wf-logo {
  font-weight: 800;
  color: var(--accent-secondary);
}

.wf-nav {
  display: flex;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.wf-nav span.active {
  color: var(--accent-primary);
  font-weight: 700;
  border-bottom: 2px solid var(--accent-primary);
}

.wf-hero-rolling {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(15, 23, 42, 0.8) 100%);
  border: 1px solid var(--border-highlight);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 14px;
}

.wf-badge {
  display: inline-block;
  font-size: 0.65rem;
  background: var(--accent-amber);
  color: #000;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 4px;
  margin-bottom: 6px;
}

.wf-hero-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.wf-hero-meta {
  font-size: 0.7rem;
  color: var(--text-dim);
}

.wf-main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

.wf-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px;
  display: flex;
  gap: 8px;
}

.wf-img {
  width: 50px;
  height: 50px;
  min-width: 50px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  color: var(--text-dim);
}

.wf-text .tag {
  font-size: 0.6rem;
  color: var(--accent-secondary);
}

.wf-text h5 {
  font-size: 0.75rem;
  line-height: 1.2;
  margin: 2px 0;
}

.wf-text p {
  font-size: 0.65rem;
  color: var(--text-dim);
}

.wf-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 8px;
  text-align: center;
  font-size: 0.65rem;
  color: var(--text-dim);
}

.design-rules-card h3 {
  margin-bottom: 1.2rem;
  font-size: 1.2rem;
}

.design-rule-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.design-rule-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.rule-number {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.15);
  padding: 4px 8px;
  border-radius: 6px;
}

.design-rule-list p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Section 5: Tech Stack Table & Recommendation */
.table-card {
  padding: 0;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.tech-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.tech-table th, .tech-table td {
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.tech-table th {
  background: rgba(0, 0, 0, 0.3);
  font-size: 1.05rem;
  font-weight: 700;
}

.recommend-badge {
  background: var(--accent-amber);
  color: #000;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 800;
  margin-left: 8px;
}

.col-title {
  width: 15%;
  font-weight: 700;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.01);
}

.wp-col {
  width: 42.5%;
  background: rgba(99, 102, 241, 0.03);
}

.blog-col {
  width: 42.5%;
}

.tech-table ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;

}

.tech-table ul li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text-muted);
}

.tech-table ul li i.fa-check { color: var(--accent-emerald); }
.tech-table ul li i.fa-minus { color: var(--accent-amber); }
.tech-table ul li i.fa-xmark { color: #ef4444; }

.wp-col.highlight-cell {
  background: rgba(99, 102, 241, 0.1);
}

.wp-recommend {
  color: var(--accent-secondary);
  font-size: 1rem;
}

.theme-box {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(17, 24, 39, 0.8) 100%);
  border-color: var(--accent-emerald);
}

.theme-icon {
  width: 56px;
  height: 56px;
  min-width: 56px;
  border-radius: var(--radius-sm);
  background: var(--gradient-emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: #fff;
}

.theme-info h3 {
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.theme-info h3 span {
  color: var(--accent-emerald);
}

.theme-info p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Section 6: Roadmap Timeline */
.roadmap-timeline {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.roadmap-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.roadmap-card.highlight-phase {
  border-color: var(--accent-amber);
  box-shadow: 0 10px 30px -10px rgba(245, 158, 11, 0.3);
}

.phase-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.phase-badge {
  background: var(--gradient-primary);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
}

.phase-badge.amber { background: var(--gradient-amber); }
.phase-badge.emerald { background: var(--gradient-emerald); }

.phase-time {
  font-size: 0.8rem;
  color: var(--text-dim);
  font-weight: 600;
}

.roadmap-card h3 {
  font-size: 1.2rem;
}

.roadmap-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.roadmap-list li {
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.roadmap-list li i {
  font-size: 0.7rem;
  color: var(--accent-primary);
  margin-top: 5px;
}

.timeline-arrow {
  font-size: 1.2rem;
  color: var(--text-dim);
}

/* CTA Banner */
.cta-banner {
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  padding: 2rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-glow);
  color: #ffffff;
}

.cta-text h3 {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.cta-text p {
  font-size: 0.95rem;
  opacity: 0.9;
}

.btn-cta {
  background: #ffffff;
  color: var(--accent-primary);
  border: none;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* ==========================================
   Slide Navigation Footer
   ========================================== */
.slide-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  z-index: 100;
}

body.mode-scroll .slide-footer {
  display: none; /* Hide footer in continuous scroll mode */
}

.nav-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
}

kbd {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--border-color);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
}

.slide-pager {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.slide-pager button {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-speed);
}

.slide-pager button:hover {
  background: var(--accent-primary);
  color: #fff;
  border-color: var(--accent-primary);
}

.page-indicator {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.page-indicator strong {
  color: var(--accent-secondary);
  font-size: 1.1rem;
}

.slide-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.slide-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: all var(--transition-speed);
}

.slide-dot.active {
  background: var(--accent-primary);
  width: 24px;
  border-radius: 10px;
  box-shadow: 0 0 10px var(--accent-primary);
}

/* ==========================================
   Responsive Breakpoints
   ========================================== */
@media (max-width: 1024px) {
  .grid-2, .hybrid-layout, .ia-design-wrapper {
    grid-template-columns: 1fr;
  }

  .roadmap-timeline {
    flex-direction: column;
  }

  .timeline-arrow {
    transform: rotate(90deg);
  }

  .main-title {
    font-size: 2.2rem;
  }

  .section-title {
    font-size: 1.8rem;
  }
}

@media (max-width: 768px) {
  .top-bar {
    padding: 0 1rem;
  }

  .brand-text .title {
    font-size: 0.95rem;
  }

  .mode-switch button {
    padding: 4px 10px;
    font-size: 0.75rem;
  }

  .slide-section {
    padding: 2rem 1rem 4rem 1rem;
  }

  .cta-banner {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .tech-table th, .tech-table td {
    padding: 0.8rem;
    font-size: 0.8rem;
  }

  .nav-hint {
    display: none;
  }
}