/* ========================================
   a2bcompany - Three.js Interactive Site
   Futuristic Dark Theme
   ======================================== */

:root {
  --color-bg: #030305;
  --color-bg-overlay: rgba(3, 3, 5, 0.95);
  --color-surface: rgba(15, 15, 20, 0.8);
  --color-surface-hover: rgba(25, 25, 35, 0.9);
  --color-border: rgba(6, 182, 212, 0.2);
  --color-border-hover: rgba(6, 182, 212, 0.4);

  --color-text: #fafafa;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;

  --color-accent: #06b6d4;
  --color-accent-light: #22d3ee;
  --color-accent-glow: rgba(6, 182, 212, 0.5);

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'Space Mono', monospace;

  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: var(--color-accent-glow);
  color: var(--color-text);
}

/* Canvas Container */
#canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

#canvas-container canvas {
  display: block;
}

/* Loading Screen */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

#loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader {
  text-align: center;
}

.loader-ring {
  width: 60px;
  height: 60px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  margin: 0 auto 24px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loader-text {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
#main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 100;
  pointer-events: none;
}

#main-nav > * {
  pointer-events: auto;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--color-text);
  letter-spacing: -0.02em;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.8;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition-fast);
}

/* Instructions */
.instructions {
  position: fixed;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  z-index: 10;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.instructions p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.instructions.hidden {
  opacity: 0;
}

/* Node Labels */
#node-labels {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
}

.node-label {
  position: absolute;
  transform: translate(-50%, -50%);
  padding: 0.5rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  white-space: nowrap;
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  pointer-events: auto;
  cursor: pointer;
}

.node-label:hover,
.node-label.active {
  background: var(--color-surface-hover);
  border-color: var(--color-border-hover);
  color: var(--color-accent);
  transform: translate(-50%, -50%) scale(1.05);
}

.node-label.visible {
  opacity: 1;
}

/* Content Overlay */
.content-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 4rem 1rem;
}

.content-overlay.active {
  opacity: 1;
  visibility: visible;
}

.content-overlay .close-btn {
  position: fixed;
  top: 1.5rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 15, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
  z-index: 210;
}

.content-overlay .close-btn:hover {
  background: rgba(20, 20, 30, 0.8);
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: rotate(90deg);
}

.content-inner {
  min-height: auto;
  display: flex;
  flex-direction: column;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem;

  /* Glassmorphism */
  background: rgba(10, 10, 15, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  box-shadow:
    0 25px 50px -12px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset,
    0 0 80px -20px var(--color-accent-glow);
}

/* Content animations handled by GSAP */

.content-header {
  margin-bottom: 1.5rem;
}

.content-tag {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: var(--color-bg);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: 6px;
  margin-bottom: 0.75rem;
}

.content-title {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.content-body {
  flex: 1;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.content-body h2 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 1.75rem 0 0.75rem;
  letter-spacing: -0.01em;
}

.content-body h2:first-child {
  margin-top: 0;
}

.content-body p {
  margin-bottom: 1rem;
}

.content-body ul {
  list-style: none;
  margin-bottom: 1rem;
}

.content-body li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.content-body li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
}

.content-body a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.content-body a:hover {
  border-bottom-color: var(--color-accent);
}

/* Content Cards */
.content-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.content-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 1.25rem;
  transition: var(--transition-fast);
}

.content-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.content-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.content-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin: 1.5rem 0;
}

@media (min-width: 640px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-item {
  text-align: center;
  padding: 1.25rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

/* Timeline */
.timeline {
  position: relative;
  margin: 1.5rem 0;
  padding-left: 1rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-light));
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  display: flex;
  gap: 1rem;
  padding: 0.75rem 0;
  padding-left: 1rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -0.3rem;
  top: 1rem;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-accent);
}

.timeline-year {
  font-family: 'Space Mono', monospace;
  font-size: 0.8rem;
  color: var(--color-accent-light);
  min-width: 3rem;
  font-weight: 600;
}

.timeline-content {
  flex: 1;
}

.timeline-title {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.95rem;
  line-height: 1.3;
}

.timeline-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.125rem;
}

/* Tags */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.tag {
  padding: 0.375rem 0.75rem;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 20px;
  font-size: 0.8125rem;
  color: var(--color-accent-light);
}

/* Contact Buttons */
.contact-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: #000 !important;
  -webkit-text-fill-color: #000 !important;
  border: none;
}

.btn-primary span {
  color: #000 !important;
  -webkit-text-fill-color: #000 !important;
}

.btn-primary svg {
  stroke: #000 !important;
  flex-shrink: 0;
}

.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -10px var(--color-accent-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

/* Content Navigation */
.content-footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.content-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: var(--color-text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.nav-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.nav-btn:disabled:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--color-text-secondary);
}

/* Headshot */
.headshot {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 1.5rem;
  border: 3px solid var(--color-accent);
  box-shadow: 0 0 30px var(--color-accent-glow);
}

/* Product Items */
.product-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.product-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.product-logo {
  width: 100px;
  height: 100px;
  object-fit: contain;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  padding: 10px;
  flex-shrink: 0;
}

.product-info {
  flex: 1;
}

.product-info h2 {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.product-info p {
  margin-bottom: 0.5rem;
}

/* Avatar (fallback) */
.avatar {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-bg);
  margin-bottom: 2rem;
}

/* Product Links */
.product-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent);
  font-weight: 500;
  margin-top: 1rem;
}

.product-link svg {
  transition: transform var(--transition-fast);
}

.product-link:hover svg {
  transform: translateX(4px);
}

/* Responsive - Tablet */
@media (max-width: 1024px) {
  .content-inner {
    max-width: 90%;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Responsive - Mobile */
@media (max-width: 768px) {
  :root {
    font-size: 14px;
  }

  #main-nav {
    padding: 1rem 1.25rem;
  }

  .logo {
    font-size: 1.25rem;
  }

  .content-overlay {
    padding: 1rem;
    align-items: flex-start;
  }

  .content-inner {
    padding: 1.5rem;
    margin-top: 3.5rem;
    max-width: 100%;
    border-radius: 16px;
  }

  .content-overlay .close-btn {
    top: 0.75rem;
    right: 0.75rem;
    width: 36px;
    height: 36px;
  }

  .content-title {
    font-size: 1.5rem;
  }

  .content-tag {
    font-size: 0.65rem;
    padding: 0.3rem 0.6rem;
  }

  /* Product items - stack on mobile */
  .product-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
  }

  .product-logo {
    width: 70px;
    height: 70px;
  }

  .product-info {
    width: 100%;
  }

  .product-link {
    justify-content: center;
  }

  /* Headshot smaller on mobile */
  .headshot {
    width: 100px;
    height: 100px;
  }

  /* Stats grid - 2 columns on mobile */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .stat-value {
    font-size: 2rem;
  }

  /* Contact buttons stack */
  .contact-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
    padding: 0.75rem 1rem;
  }

  /* Navigation buttons */
  .content-nav {
    flex-direction: column;
    gap: 0.75rem;
  }

  .nav-btn {
    justify-content: center;
    width: 100%;
  }

  /* Cards */
  .content-cards {
    grid-template-columns: 1fr;
  }

  .content-card {
    padding: 1rem;
  }

  /* Instructions */
  .instructions {
    bottom: 1.5rem;
    font-size: 0.75rem;
  }

  /* Node labels */
  .node-label {
    font-size: 0.6rem;
    padding: 0.3rem 0.6rem;
    max-width: 80px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  /* Prevent labels from going off screen */
  #node-labels {
    overflow: hidden;
  }
}

/* Responsive - Small Mobile */
@media (max-width: 480px) {
  .content-inner {
    padding: 1.25rem;
  }

  .content-title {
    font-size: 1.25rem;
  }

  h2 {
    font-size: 1.1rem;
  }

  .stats-grid {
    gap: 0.75rem;
  }

  .stat-value {
    font-size: 1.75rem;
  }

  .stat-label {
    font-size: 0.65rem;
  }

  .tag-list {
    gap: 0.4rem;
  }

  .tag {
    font-size: 0.7rem;
    padding: 0.3rem 0.6rem;
  }
}

/* Utility: Hide */
.hidden {
  display: none !important;
}

/* Glitch effect for title on hover (optional enhancement) */
@keyframes glitch {
  0% { transform: translate(0); }
  20% { transform: translate(-2px, 2px); }
  40% { transform: translate(-2px, -2px); }
  60% { transform: translate(2px, 2px); }
  80% { transform: translate(2px, -2px); }
  100% { transform: translate(0); }
}

/* Scanline effect */
.scanlines::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.1),
    rgba(0, 0, 0, 0.1) 1px,
    transparent 1px,
    transparent 2px
  );
  pointer-events: none;
  opacity: 0.3;
}

/* Contact Footer */
.contact-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem;
  pointer-events: none;
}

.contact-footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  background: rgba(3, 3, 5, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  width: fit-content;
  margin: 0 auto;
  pointer-events: auto;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.contact-link:hover {
  color: var(--color-accent-light);
}

.contact-link svg {
  flex-shrink: 0;
  stroke: currentColor;
}

.contact-divider {
  color: var(--color-text-muted);
  opacity: 0.5;
}

@media (max-width: 640px) {
  .contact-footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    border-radius: 20px;
    padding: 1rem 1.25rem;
  }

  .contact-divider {
    display: none;
  }

  .contact-link {
    font-size: 0.8125rem;
  }
}