/* ============================================
   Omnispect Landing Page - App-Matched Styles
   ============================================ */

/* ===========================================
   1. CSS Variables (Dark Theme - Default)
   =========================================== */
:root {
  /* App backgrounds (from screenshots) */
  --bg-primary: #000000;
  --bg-secondary: #16213e;
  --bg-tertiary: #0f3460;
  --bg-panel-header: #2a2a4a;

  /* Logo brand colors */
  --brand-green: #1B4D1B;
  --brand-blue: #0049D9;
  --brand-orange: #D35400;
  --brand-yellow: #FFF9C4;

  /* UI accents (matches logo blue) */
  --accent-blue: #0049D9;
  --accent-blue-hover: #0056FF;
  --border-subtle: #3a3a5a;
  --border-panel: #4a4a6a;

  /* Status colors */
  --status-completed: #4ade80;
  --status-running: #fbbf24;
  --status-failed: #f87171;

  /* Text */
  --text-primary: #e4e4e4;
  --text-secondary: #a0a0a0;
  --text-muted: #6b7280;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 8rem;

  /* Typography */
  /* Peripheral/technical text - Consolas first */
  --font-mono: Consolas, 'Liberation Mono', 'Courier New', monospace;
  /* Display/headings - geometric sans for contrast */
  --font-display: 'Avenir Next', Avenir, Montserrat, Corbel, 'URW Gothic', source-sans-pro, sans-serif;
  /* Body text - humanist sans for readability */
  --font-body: Seravek, 'Gill Sans Nova', Ubuntu, Calibri, 'DejaVu Sans', source-sans-pro, sans-serif;

  /* Sizing */
  --container-max: 1200px;
  --border-radius: 0;
}

/* ===========================================
   2. Light Theme Override
   =========================================== */
@media (prefers-color-scheme: light) {
  :root:not(.theme-dark) {
    --bg-primary: #FFF9C4;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e9ecef;
    --bg-panel-header: #dee2e6;
    --border-subtle: #ced4da;
    --border-panel: #adb5bd;
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-muted: #6c757d;
    --accent-blue: #0066cc;
    --accent-blue-hover: #0052a3;
  }
}

.theme-light {
  --bg-primary: #FFF9C4;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e9ecef;
  --bg-panel-header: #dee2e6;
  --border-subtle: #ced4da;
  --border-panel: #adb5bd;
  --text-primary: #212529;
  --text-secondary: #495057;
  --text-muted: #6c757d;
  --accent-blue: #0066cc;
  --accent-blue-hover: #0052a3;
}

/* ===========================================
   3. Reset/Base Styles
   =========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
}

a:hover {
  color: var(--accent-blue-hover);
}

img {
  max-width: 100%;
  height: auto;
}

/* ===========================================
   4. Typography
   =========================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

code, pre, .mono {
  font-family: var(--font-mono);
}

.text-secondary {
  color: var(--text-secondary);
}

.text-muted {
  color: var(--text-muted);
}

/* ===========================================
   5. Layout
   =========================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent-blue);
  color: white;
  padding: var(--space-sm) var(--space-md);
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* ===========================================
   6. Navigation (App-Style Header)
   =========================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(0.25rem, 1vw, 0.75rem) clamp(1rem, 2.5vw, 2rem);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: clamp(0.25rem, 1vw, 0.75rem);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(0.875rem, 2vw, 1.25rem);
  color: #ffffff;
  -webkit-text-stroke: 0.5px #000000;
  text-shadow: 0 0 1px #000000;
}

.header-logo img {
  width: clamp(24px, 4vw, 40px);
  height: clamp(24px, 4vw, 40px);
}

.tab-bar {
  display: flex;
  gap: 2px;
  background: var(--bg-tertiary);
  border-radius: var(--border-radius);
  padding: 2px;
  transform: translateX(-40px);
}

.tab {
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 0.875rem;
}

.tab:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.tab.active {
  color: var(--accent-blue);
  background: var(--bg-secondary);
}

.theme-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  padding: clamp(0.25rem, 1vw, 0.5rem);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: clamp(1rem, 2vw, 1.5rem);
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(28px, 4vw, 44px);
  height: clamp(28px, 4vw, 44px);
}

.theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-panel);
}

.theme-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-icon svg {
  width: clamp(16px, 2.5vw, 24px);
  height: clamp(16px, 2.5vw, 24px);
}

/* ===========================================
   7. Hero Section (Large Logo)
   =========================================== */
.hero {
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  background: var(--bg-primary);
}

.hero-logo {
  width: 200px;
  height: 200px;
  margin-bottom: var(--space-lg);
  animation: float 6s ease-in-out infinite;
}

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

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: #ffffff;
  -webkit-text-stroke: 1px #000000;
  text-shadow: 0 0 2px #000000;
}

.hero .tagline {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--accent-blue);
  margin-bottom: var(--space-xl);
  font-weight: 500;
}

.hero .subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
}

.btn-primary {
  display: inline-block;
  background: var(--bg-secondary);
  color: var(--accent-blue);
  padding: var(--space-md) var(--space-xl);
  border: 2px solid var(--accent-blue);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-primary:hover {
  background: var(--accent-blue);
  color: var(--bg-primary);
}

/* ===========================================
   8. Panel Components (App-Style)
   =========================================== */
.panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: var(--bg-panel-header);
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}

.panel-header:hover {
  background: var(--bg-tertiary);
}

.panel-icon {
  color: var(--text-muted);
  font-size: 0.75rem;
}

.panel.collapsed .panel-icon {
  transform: rotate(-90deg);
}

.panel-title {
  flex: 1;
}

.panel-close {
  color: var(--text-muted);
  font-size: 1rem;
  padding: 0 var(--space-xs);
}

.panel-close:hover {
  color: var(--status-failed);
}

.panel-content {
  padding: var(--space-md);
}

.panel.collapsed .panel-content {
  display: none;
}

/* ===========================================
   9. Features Grid
   =========================================== */
.features-section {
  padding: var(--space-xl) var(--space-md);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: var(--space-lg);
}

.feature-card:hover {
  border-color: var(--accent-blue);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.feature-card h3 {
  font-family: var(--font-mono);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* Status indicator colors */
.status-completed { color: var(--status-completed); }
.status-running { color: var(--status-running); }
.status-failed { color: var(--status-failed); }

/* ===========================================
   10. Screenshots (Placeholder Panels)
   =========================================== */
.screenshots-section {
  padding: var(--space-xl) var(--space-md);
  background: var(--bg-tertiary);
}

.screenshot-carousel {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.screenshot-slide {
  display: none;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius);
  aspect-ratio: 16 / 10;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-md);
}

.screenshot-slide.active {
  display: flex;
}

.screenshot-placeholder {
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-align: center;
}

.screenshot-label {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--text-secondary);
}

.carousel-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.carousel-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: var(--space-sm) var(--space-md);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  cursor: pointer;
}

.carousel-btn:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.carousel-dots {
  display: flex;
  gap: var(--space-sm);
}

.carousel-dot {
  width: 8px;
  height: 8px;
  background: var(--border-subtle);
  border: none;
  cursor: pointer;
}

.carousel-dot.active {
  background: var(--accent-blue);
}

/* ===========================================
   11. Technical Details (Field/Value Table)
   =========================================== */
.technical-section {
  padding: var(--space-xl) var(--space-md);
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.specs-table th,
.specs-table td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.specs-table th {
  color: var(--text-muted);
  font-weight: 500;
  width: 40%;
}

.specs-table td {
  color: var(--text-primary);
}

.specs-table tr:hover {
  background: var(--bg-secondary);
}

/* ===========================================
   12. Download Section
   =========================================== */
.download-section {
  padding: var(--space-2xl) var(--space-md);
  text-align: center;
  background: var(--bg-primary);
}

.download-section h2 {
  font-size: 2rem;
  margin-bottom: var(--space-lg);
}

.download-info {
  margin-top: var(--space-lg);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.checksum {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
}

.checksum:hover {
  background: var(--bg-panel-header);
  color: var(--text-secondary);
}

.checksum-label {
  color: var(--text-secondary);
}

.coming-soon {
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ===========================================
   13. Footer
   =========================================== */
.footer {
  padding: var(--space-lg) var(--space-md);
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-content {
  max-width: var(--container-max);
  margin: 0 auto;
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer a {
  color: var(--text-secondary);
}

.footer a:hover {
  color: var(--accent-blue);
}

/* ===========================================
   14. Animations
   =========================================== */
/* Keep float animation for logo only */

/* Toast notification */
.toast {
  position: fixed;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-panel-header);
  color: var(--text-primary);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  z-index: 100;
  display: none;
}

.toast.show {
  display: block;
}

/* ===========================================
   15. Responsive Breakpoints
   =========================================== */

/* Mobile (default) */

/* Tablet and up */
@media (min-width: 768px) {
  .hero-logo {
    width: 300px;
    height: 300px;
  }

  .hero h1 {
    font-size: 3.5rem;
  }

  .hero .tagline {
    font-size: 1.75rem;
  }

  .tab-bar {
    display: flex;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .hero-logo {
    width: 400px;
    height: 400px;
  }

  .hero h1 {
    font-size: 4rem;
  }

  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Hide on mobile */
@media (max-width: 767px) {
  .tab-bar {
    display: none;
  }

  .header-logo span {
    display: none;
  }
}

/* ===========================================
   16. Popup/Modal
   =========================================== */
.popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.popup-overlay.show {
  display: flex;
}

.popup {
  background: var(--bg-secondary);
  border: 2px solid var(--accent-blue);
  padding: var(--space-xl);
  text-align: center;
  max-width: 400px;
}

.popup-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.popup-text {
  font-family: var(--font-body);
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.popup-text a {
  color: var(--accent-blue);
}

.popup-text a:hover {
  color: var(--accent-blue-hover);
}

.popup-close {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: var(--space-sm) var(--space-xl);
  font-family: var(--font-mono);
  cursor: pointer;
}

.popup-close:hover {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

/* ===========================================
   17. WASM 3D Logo Overlay
   =========================================== */
#wasm-logo-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 100;  /* Above content but SDL events filtered in JS */
  pointer-events: none;
  overflow: visible;
}

#canvas.emscripten {
  display: block;
  width: 100%;
  height: 100%;
  background: transparent !important;
  background-color: transparent !important;
  pointer-events: none;  /* Let clicks pass through to page content */
  cursor: default;
}

.wasm-status {
  display: none;
}

/* ===========================================
   18. Placeholder Image Section
   =========================================== */
.placeholder-image-section {
  position: relative;
  z-index: 101;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-lg) 0;
  background: var(--bg-primary);
}

.placeholder-image {
  width: min(95%, calc(95vh * 16 / 9));
  height: auto;
  display: block;
}