*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

html {
  min-height: 100%;
  background-color: var(--sr-bg-base, #0a1714);
}

html.light {
  background-color: var(--sr-bg-base, #f7faf9);
}

body {
  min-height: 100%;
  font-family: var(--sr-font-sans, "Space Grotesk", sans-serif);
}

/* Noise overlay */
.noise {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.065;
  background-image: repeating-radial-gradient(circle at 0 0, transparent 0, #ffffff 1px, transparent 2px);
}

.light .noise,
html.light .noise {
  opacity: 0.045;
  background-image: repeating-radial-gradient(circle at 0 0, transparent 0, #000000 1px, transparent 2px);
}

/* Feature card hover border glow */
.feature-card:hover {
  border-color: rgba(74, 144, 226, 0.4) !important;
  box-shadow: 0 8px 40px rgba(74, 144, 226, 0.18);
  transform: translateY(-3px);
}

/* kbd tag */
kbd.kbd {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 5px;
  font-size: 12px;
  font-family: var(--sr-font-mono, "IBM Plex Mono", monospace);
  background: var(--sr-bg-elevated);
  border: 1px solid var(--sr-border-strong);
  color: var(--sr-fg-primary);
  white-space: nowrap;
}

/* Nav link transitions */
header nav a {
  transition: background 0.15s, color 0.15s;
}

/* Scroll margin for anchor links */
[id] {
  scroll-margin-top: 72px;
}

/* Details/summary reset */
details > summary {
  transition: background 0.15s;
}
details > summary:hover {
  background: var(--sr-bg-overlay) !important;
}
details[open] > summary {
  border-bottom: 1px solid var(--sr-border-subtle);
}

/* Thin scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--sr-bg-base); }
::-webkit-scrollbar-thumb { background: var(--sr-border-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--sr-accent); }

/* ===== 3-D Laptop animations ===== */

/* Hero laptop — wide rotation swing */
.laptop-hero-scene {
  perspective: 1100px;
  width: 100%;
}

.laptop-hero-3d {
  animation: laptop-hero-turn 9s cubic-bezier(0.37, 0, 0.63, 1) infinite;
  transform-origin: 50% 55%;
  will-change: transform;
}

@keyframes laptop-hero-turn {
  0%   { transform: rotateX(5deg)  rotateY(-26deg) translateY(0px);   }
  22%  { transform: rotateX(3deg)  rotateY(-3deg)  translateY(-14px); }
  50%  { transform: rotateX(5deg)  rotateY(26deg)  translateY(0px);   }
  72%  { transform: rotateX(3deg)  rotateY(3deg)   translateY(-14px); }
  100% { transform: rotateX(5deg)  rotateY(-26deg) translateY(0px);   }
}

/* Glow shadow that drifts left↔right with the rotation */
.laptop-hero-glow {
  animation: laptop-hero-glow-anim 9s cubic-bezier(0.37, 0, 0.63, 1) infinite;
}

@keyframes laptop-hero-glow-anim {
  0%   { opacity: 0.20; transform: scaleX(0.58) translateX(32%);  }
  22%  { opacity: 0.45; transform: scaleX(0.82) translateX(5%);   }
  50%  { opacity: 0.20; transform: scaleX(0.58) translateX(-32%); }
  72%  { opacity: 0.45; transform: scaleX(0.82) translateX(-5%);  }
  100% { opacity: 0.20; transform: scaleX(0.58) translateX(32%);  }
}

/* Screenshots laptop — gentle rock */
.laptop-ss-scene {
  perspective: 1400px;
}

.laptop-ss-3d {
  animation: laptop-ss-rock 8s ease-in-out infinite;
  transform-origin: 50% 55%;
  will-change: transform;
}

@keyframes laptop-ss-rock {
  0%   { transform: rotateX(4deg) rotateY(-13deg) translateY(0px);  }
  50%  { transform: rotateX(2deg) rotateY(13deg)  translateY(-7px); }
  100% { transform: rotateX(4deg) rotateY(-13deg) translateY(0px);  }
}

@media (prefers-reduced-motion: reduce) {
  .laptop-hero-3d,
  .laptop-ss-3d,
  .laptop-hero-glow,
  [style*="sr-popup-float"],
  [style*="sr-tray-pulse"] { animation: none !important; }
}

/* Laptop mockup — keyboard key helpers */
.lk { flex:1; height:9px; background:#2c2c2c; border-radius:2px; box-shadow:0 1px 0 rgba(0,0,0,.65),inset 0 1px 0 rgba(255,255,255,.04); }
.lk.w  { flex:1.6; }
.lk.xl { flex:2.3; }
.lk.sp { flex:5; }
.lk-row { display:flex; gap:1.5px; margin-bottom:2px; }

/* SoundRoot widget popup floating animation */
@keyframes sr-popup-float {
  0%, 100% { transform: translateY(0px);   box-shadow: 0 8px 40px rgba(74,144,226,.28), 0 2px 16px rgba(0,0,0,.6); }
  50%       { transform: translateY(-4px);  box-shadow: 0 14px 52px rgba(74,144,226,.38), 0 4px 24px rgba(0,0,0,.5); }
}

/* System tray icon pulsing glow */
@keyframes sr-tray-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(74,144,226,.0),  border-color: rgba(74,144,226,.45); }
  50%       { box-shadow: 0 0 6px 2px rgba(74,144,226,.5), border-color: rgba(74,144,226,.9); }
}