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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  font-family: system-ui, -apple-system, sans-serif;
}

/* === Canvas === */
#scene {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* === Theme nav === */
#theme-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.75rem;
}

#theme-nav button {
  font: 300 0.8rem/1 system-ui, sans-serif;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  padding: 0.35rem 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

#theme-nav button:hover {
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

#theme-nav button[aria-pressed="true"] {
  color: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.08);
}

#theme-nav button:focus-visible {
  outline: 1px solid rgba(255, 255, 255, 0.5);
  outline-offset: 2px;
}

/* === Project bar === */
#project-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  justify-content: center;
  gap: 1rem;
  padding: 0.75rem;
  background: var(--bar-bg, rgba(0, 0, 0, 0.3));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--bar-border, rgba(255, 255, 255, 0.08));
}

#project-bar a {
  font: 300 0.85rem/1 system-ui, sans-serif;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  padding: 0.4rem 1.2rem;
  transition: all 0.3s ease;
}

#project-bar a:hover {
  color: var(--bar-hover, rgba(255, 255, 255, 0.9));
  border-color: var(--bar-hover-border, rgba(255, 255, 255, 0.3));
  background: rgba(255, 255, 255, 0.1);
}

#project-bar a:focus-visible {
  outline: 1px solid rgba(255, 255, 255, 0.5);
  outline-offset: 2px;
}

/* === Theme overrides via CSS custom properties === */
body[data-theme="void"] {
  --bar-bg: rgba(0, 0, 0, 0.4);
  --bar-border: rgba(255, 255, 255, 0.06);
  --bar-hover: rgba(255, 255, 255, 0.9);
  --bar-hover-border: rgba(255, 255, 255, 0.3);
}

body[data-theme="sakura"] {
  background: linear-gradient(to bottom, #e8dde4, #f0e6ef 40%, #f5eff2);
  --bar-bg: rgba(255, 255, 255, 0.15);
  --bar-border: rgba(255, 255, 255, 0.25);
  --bar-hover: #e8a0b0;
  --bar-hover-border: rgba(232, 160, 176, 0.4);
}

body[data-theme="sakura"] #theme-nav button {
  color: rgba(42, 42, 42, 0.6);
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(42, 42, 42, 0.1);
}

body[data-theme="sakura"] #theme-nav button:hover {
  color: rgba(42, 42, 42, 0.9);
  background: rgba(255, 255, 255, 0.4);
}

body[data-theme="sakura"] #theme-nav button[aria-pressed="true"] {
  color: #2a2a2a;
  border-color: rgba(42, 42, 42, 0.3);
}

body[data-theme="sakura"] #project-bar a {
  color: rgba(42, 42, 42, 0.7);
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.3);
}

body[data-theme="sakura"] #project-bar a:hover {
  color: #e8a0b0;
  border-color: rgba(232, 160, 176, 0.4);
}

body[data-theme="greenlight"] {
  --bar-bg: rgba(0, 0, 0, 0.3);
  --bar-border: rgba(255, 255, 255, 0.08);
  --bar-hover: rgba(57, 255, 133, 0.8);
  --bar-hover-border: rgba(57, 255, 133, 0.3);
}

body[data-theme="greenlight"] #project-bar a:hover {
  color: rgba(57, 255, 133, 0.8);
  border-color: rgba(57, 255, 133, 0.3);
}

body[data-theme="greenlight"] #theme-nav button:hover {
  color: rgba(57, 255, 133, 0.7);
}

body[data-theme="greenlight"] #theme-nav button[aria-pressed="true"] {
  color: rgba(57, 255, 133, 0.9);
  border-color: rgba(57, 255, 133, 0.3);
}