/* css/style.css — Digital Dream Dark Immersive Theme */

/* ───────── Custom Properties ───────── */
:root {
  --dd-bg-deep: #0a0a0f;
  --dd-bg-mid: #12121a;
  --dd-bg-card: #1a1a2e;
  --dd-bg-card-hover: #22223a;
  --dd-text: #e8e8f0;
  --dd-text-muted: #9898b0;
  --dd-accent: #6c63ff;
  --dd-accent-cyan: #00d4ff;
  --dd-glow: rgba(108, 99, 255, 0.35);
  --dd-glow-cyan: rgba(0, 212, 255, 0.25);
  --dd-border: rgba(108, 99, 255, 0.2);
  --dd-radius: 1rem;
  --dd-transition: 0.3s ease;
}

/* ───────── Reset & Base ───────── */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  background: var(--dd-bg-deep);
  color: var(--dd-text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

main {
  flex: 1;
}

a {
  color: var(--dd-accent-cyan);
  transition: color var(--dd-transition);
}
a:hover {
  color: var(--dd-accent);
}

::selection {
  background: var(--dd-accent);
  color: #fff;
}

/* ───────── Navbar ───────── */
.navbar-dark-glass {
  background: rgba(10, 10, 15, 0.75);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--dd-border);
  transition: background var(--dd-transition);
}
.navbar-dark-glass .navbar-brand {
  color: #fff;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.navbar-dark-glass .nav-link {
  color: var(--dd-text-muted);
  font-weight: 500;
  transition: color var(--dd-transition);
}
.navbar-dark-glass .nav-link:hover,
.navbar-dark-glass .nav-link.active {
  color: #fff;
}

/* ───────── Scroll Progress Bar ───────── */
#scrollProgress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  z-index: 9999;
  background: linear-gradient(90deg, var(--dd-accent), var(--dd-accent-cyan));
  pointer-events: none;
}

/* ───────── Hero Loader ───────── */
.hero-loader {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--dd-bg-deep);
  transition: opacity 0.6s ease;
}
.hero-loader.hidden {
  opacity: 0;
  pointer-events: none;
}
.hero-loader-text {
  font-size: clamp(1.8rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 0%, var(--dd-accent-cyan) 50%, var(--dd-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: heroLoaderPulse 1.5s ease-in-out infinite;
}
@keyframes heroLoaderPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ───────── Hero — Three.js Canvas ───────── */
.hero-canvas-wrap {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background: var(--dd-bg-deep);
}
.hero-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
}
.hero-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 6rem 1.5rem 4rem;
  background: linear-gradient(to top, var(--dd-bg-deep) 0%, transparent 100%);
  text-align: center;
  pointer-events: none;
  z-index: 2;
}
.hero-overlay h1 {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #fff 0%, var(--dd-accent-cyan) 50%, var(--dd-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-overlay .tagline {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--dd-text-muted);
  max-width: 36rem;
  margin: 0 auto;
}

/* ───────── Text Hero (product pages) ───────── */
.text-hero {
  padding: 8rem 1.5rem 4rem;
  text-align: center;
  background: radial-gradient(ellipse at 50% 0%, rgba(108,99,255,0.08) 0%, transparent 70%);
}
.text-hero h1 {
  font-size: clamp(2rem, 5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.text-hero .lead {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--dd-text-muted);
  max-width: 40rem;
  margin: 0 auto;
}

/* ───────── Section Basics ───────── */
.section-dark {
  padding: 5rem 0;
  background: var(--dd-bg-deep);
}
.section-mid {
  padding: 5rem 0;
  background: var(--dd-bg-mid);
}
.section-heading {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.section-sub {
  color: var(--dd-text-muted);
  font-size: 1.05rem;
  max-width: 38rem;
}

/* ───────── Cards ───────── */
.card-dark {
  background: var(--dd-bg-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  transition: transform var(--dd-transition), box-shadow var(--dd-transition), border-color var(--dd-transition);
  overflow: hidden;
}
.card-dark:hover {
  transform: translateY(-4px) scale(1.02);
  border-color: var(--dd-accent);
  box-shadow: 0 8px 32px var(--dd-glow), inset 0 0 20px var(--dd-glow-cyan);
}
.card-dark .card-img-top {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.card-dark .card-body {
  padding: 2rem;
}
.card-dark .card-title {
  font-weight: 700;
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}
.card-dark .card-text {
  color: var(--dd-text-muted);
  line-height: 1.7;
}
.card-dark .btn-outline-accent {
  color: var(--dd-accent-cyan);
  border: 1px solid var(--dd-accent-cyan);
  border-radius: 0.5rem;
  padding: 0.5rem 1.5rem;
  font-weight: 600;
  transition: all var(--dd-transition);
  text-decoration: none;
  display: inline-block;
}
.card-dark .btn-outline-accent:hover {
  background: var(--dd-accent-cyan);
  color: var(--dd-bg-deep);
  box-shadow: 0 0 20px var(--dd-glow-cyan);
}

/* ───────── Feature Chips / Cards Grid ───────── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}
.feature-card {
  background: var(--dd-bg-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  padding: 1.75rem;
  transition: border-color var(--dd-transition), box-shadow var(--dd-transition);
}
.feature-card:hover {
  border-color: var(--dd-accent-cyan);
  box-shadow: 0 0 20px var(--dd-glow-cyan);
}
.feature-card .feature-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  display: block;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.feature-card:hover .feature-icon {
  transform: scale(1.15);
}
.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.feature-card p {
  color: var(--dd-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

/* ───────── Video Container ───────── */
.video-container {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--dd-radius);
  border: 1px solid var(--dd-border);
  overflow: hidden;
  background: var(--dd-bg-mid);
}
.video-container video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ───────── 3D / Splat Viewer Container ───────── */
.viewer-container {
  position: relative;
  width: 100%;
  height: 80vh;
  max-height: 700px;
  border-radius: var(--dd-radius);
  border: 1px solid var(--dd-border);
  overflow: hidden;
  background: var(--dd-bg-mid);
}
.viewer-container.compact {
  height: 500px;
}
.viewer-container canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* model-viewer sizing */
.viewer-container model-viewer {
  width: 100%;
  height: 100%;
  --poster-color: transparent;
}

@media (max-width: 991.98px) {
  .viewer-container { height: 50vh; }
}
@media (max-width: 575.98px) {
  .viewer-container { height: 40vh; }
  .viewer-container.compact { height: 300px; }
}

/* ───────── Loading Spinner ───────── */
.viewer-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--dd-bg-mid);
  z-index: 5;
  transition: opacity 0.4s ease;
}
.viewer-loading.hidden {
  opacity: 0;
  pointer-events: none;
}
.viewer-loading .spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--dd-border);
  border-top-color: var(--dd-accent-cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.viewer-loading .spinner-label {
  margin-top: 1rem;
  color: var(--dd-text-muted);
  font-size: 0.9rem;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ───────── Skeleton Loader ───────── */
.skeleton-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  width: 60%;
  max-width: 280px;
}
.skeleton-block {
  border-radius: 0.75rem;
  background: var(--dd-bg-card);
  position: relative;
  overflow: hidden;
}
.skeleton-block::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent);
  animation: shimmer 1.5s ease-in-out infinite;
}
.skeleton-model {
  width: 100%;
  aspect-ratio: 4 / 3;
}
.skeleton-bar {
  height: 12px;
  width: 100%;
}
.skeleton-bar.short {
  width: 60%;
}
@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* Fallback state */
.viewer-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  color: var(--dd-text-muted);
}
.viewer-fallback .fallback-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

/* ───────── Scroll Animations ───────── */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.stagger-children > .fade-in-up:nth-child(2) { transition-delay: 0.1s; }
.stagger-children > .fade-in-up:nth-child(3) { transition-delay: 0.2s; }
.stagger-children > .fade-in-up:nth-child(4) { transition-delay: 0.25s; }
.stagger-children > .fade-in-up:nth-child(5) { transition-delay: 0.3s; }

/* ───────── Side-by-Side Hero (product pages) ───────── */
.split-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 6rem 0 4rem;
}
@media (max-width: 991.98px) {
  .split-hero {
    grid-template-columns: 1fr;
    padding: 5rem 0 3rem;
  }
}
.split-hero .hero-text h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.split-hero .hero-text .lead {
  color: var(--dd-text-muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

/* ───────── Quote Block ───────── */
.quote-block {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-style: italic;
  color: var(--dd-text-muted);
  text-align: center;
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  position: relative;
}
.quote-block::before {
  content: '\201C';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  font-size: 4rem;
  color: var(--dd-accent);
  opacity: 0.3;
  font-style: normal;
  line-height: 1;
}

/* ───────── Social Links ───────── */
.social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}
.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border: 1px solid var(--dd-border);
  border-radius: 50%;
  color: var(--dd-text-muted);
  font-size: 1.25rem;
  text-decoration: none;
  transition: color var(--dd-transition), border-color var(--dd-transition), box-shadow var(--dd-transition);
}
.social-links a:hover {
  color: var(--dd-accent-cyan);
  border-color: var(--dd-accent-cyan);
  box-shadow: 0 0 16px var(--dd-glow-cyan);
}

/* ───────── Back to Top Button ───────── */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 100;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 1px solid var(--dd-border);
  background: var(--dd-bg-card);
  color: var(--dd-text-muted);
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dd-transition), color var(--dd-transition), border-color var(--dd-transition), box-shadow var(--dd-transition);
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.back-to-top:hover {
  color: var(--dd-accent-cyan);
  border-color: var(--dd-accent-cyan);
  box-shadow: 0 0 16px var(--dd-glow-cyan);
}

/* ───────── Footer ───────── */
footer {
  background: var(--dd-bg-mid);
  border-top: 1px solid var(--dd-border);
  color: var(--dd-text-muted);
}
footer a {
  color: var(--dd-text-muted);
  text-decoration: none;
}
footer a:hover {
  color: var(--dd-accent-cyan);
}

/* ───────── Utility ───────── */
.text-accent { color: var(--dd-accent); }
.text-cyan   { color: var(--dd-accent-cyan); }
.bg-deep     { background: var(--dd-bg-deep); }
.bg-mid      { background: var(--dd-bg-mid); }
.glow-border {
  border: 1px solid var(--dd-border);
  box-shadow: 0 0 20px var(--dd-glow);
}