:root {
  --bg: #0c0f0e;
  --surface: #121715;
  --surface-2: #181e1b;
  --border: #232b27;
  --border-strong: #2f3a35;
  --text: #e8efeb;
  --muted: #93a29b;
  --accent: #74d9bc;
  --accent-ink: #0b2620;
  --danger: #e08a7a;
  --radius-card: 12px;
  --radius-control: 8px;
  --nav-height: 64px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

/* Author display rules must never defeat the hidden attribute. */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: "Geist", system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  display: flex;
  flex-direction: column;
}

.mono {
  font-family: "Geist Mono", ui-monospace, monospace;
  font-variant-numeric: tabular-nums;
}

.dim { color: var(--muted); }
.accent { color: var(--accent); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 8px 14px;
  border-radius: 0 0 var(--radius-control) 0;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Navigation */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-height);
  background: rgba(12, 15, 14, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1240px;
  margin: 0 auto;
  height: 100%;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

.brand-glyph {
  width: 22px;
  height: 22px;
  object-fit: contain;
  display: inline-block;
}

.nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  padding: 7px 12px;
  border-radius: 999px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a[aria-current="page"] {
  color: var(--accent-ink);
  background: var(--accent);
}

.runtime-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  white-space: nowrap;
}

.runtime-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
}
.runtime-pill.is-downloading .dot { background: var(--accent); animation: pulse 1.2s ease-in-out infinite; }
.runtime-pill.is-ready .dot { background: var(--accent); }
.runtime-pill.is-error .dot { background: var(--danger); }

@keyframes pulse { 50% { opacity: 0.35; } }

/* Layout */

#main {
  flex: 1;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 40px 20px 72px;
}

.view { animation: view-in 0.25s ease; }

@keyframes view-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.view-head { margin-bottom: 20px; max-width: 65ch; }
.view-head h1 {
  font-size: clamp(26px, 4vw, 34px);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 6px;
}
.view-head p { color: var(--muted); margin: 0; }

/* Buttons and controls */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  padding: 10px 18px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, transform 0.1s;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover:not(:disabled) { background: #86e2c9; }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }

input, select {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  color: var(--text);
  font: inherit;
  padding: 10px 12px;
  transition: border-color 0.2s;
}
input:hover, select:hover { border-color: var(--accent); }
input::placeholder { color: #5c6a63; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}
.panel-head h2 {
  margin: 0;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.pill {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--muted);
}
.pill.is-live { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }

progress {
  width: 100%;
  height: 8px;
  appearance: none;
  border: none;
  border-radius: 999px;
  background: var(--surface-2);
  overflow: hidden;
}
progress::-webkit-progress-bar { background: var(--surface-2); border-radius: 999px; }
progress::-webkit-progress-value { background: var(--accent); border-radius: 999px; }
progress::-moz-progress-bar { background: var(--accent); border-radius: 999px; }
progress:indeterminate { background: var(--surface-2); }

.seg {
  display: inline-flex;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  padding: 3px;
  gap: 3px;
}
.seg button {
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.seg button:hover { color: var(--text); }
.seg button[aria-selected="true"] {
  background: var(--accent);
  color: var(--accent-ink);
}
.seg-wrap { flex-wrap: wrap; }

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  cursor: pointer;
}
.check input { accent-color: var(--accent); width: 15px; height: 15px; }

/* Home */

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
  padding: 28px 0 48px;
}

.hero-copy h1 {
  font-size: clamp(34px, 5.4vw, 54px);
  letter-spacing: -0.04em;
  line-height: 1.04;
  margin: 0 0 14px;
}
.hero-copy > p {
  color: var(--muted);
  max-width: 46ch;
  margin: 0 0 24px;
}

.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-note {
  margin: 18px 0 0;
  color: var(--danger);
  font-size: 12.5px;
}

.runtime-card p { margin: 0 0 12px; font-size: 13.5px; }

.runtime-files {
  margin-top: 12px;
  display: grid;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
}
.runtime-files .file-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.runtime-files .file-done { color: var(--accent); }

.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.quick-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 18px;
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.2s, transform 0.15s;
}
.quick-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.quick-card h3 { margin: 0; font-size: 16px; letter-spacing: -0.01em; }
.quick-card p { margin: 0; color: var(--muted); font-size: 13.5px; }
.quick-go { margin-top: auto; color: var(--accent); font-weight: 600; font-size: 13px; }

.community-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  align-items: center;
  gap: 48px;
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.community-copy { max-width: 48ch; }
.community-label {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.community-copy h2 {
  margin: 0 0 10px;
  font-size: clamp(24px, 3.5vw, 34px);
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.community-copy > p:last-child { margin: 0; color: var(--muted); }

.discord-widget-shell {
  width: min(350px, 100%);
  justify-self: end;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--surface);
}
.discord-widget {
  display: block;
  width: 100%;
  max-width: 350px;
  height: 500px;
  border: 0;
}

/* Play */

.transport-note {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-control);
  background: var(--surface);
  color: var(--muted);
  padding: 12px 16px;
  margin-bottom: 16px;
  max-width: 76ch;
}
.transport-note strong { color: var(--text); }

.join-form { display: grid; gap: 14px; max-width: 720px; }

.join-form .fields { display: flex; gap: 14px; flex-wrap: wrap; }
.join-form .field { display: grid; gap: 6px; }
.join-form .field.grow { flex: 1; min-width: 220px; }
.join-form label { font-size: 13px; font-weight: 500; color: var(--muted); }

.invite-row { display: flex; gap: 10px; }
.invite-row input {
  flex: 1;
  min-width: 0;
  font-size: 12.5px;
  color: var(--muted);
}

.form-error { color: var(--danger); margin: 0; font-size: 13px; min-height: 1em; }

.session-shell {
  margin-top: 0px;
  display: grid;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.session-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 10px 14px;
  font-size: 13.5px;
  color: var(--muted);
}

.runtime-frame {
  width: 100%;
  height: min(72dvh, 720px);
  border: none;
  background: #000;
  display: block;
}

.session-shell.is-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 70;
  border: none;
  border-radius: 0;
  background: #000;
  grid-template-rows: 1fr;
}

.session-shell.is-fullscreen .runtime-frame {
  height: 100%;
  min-height: 0;
}

.session-shell.is-fullscreen #play-leave {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 80;
  background: rgba(12, 15, 14, 0.82);
  color: var(--text);
}

.session-shell.is-fullscreen #play-leave:hover {
  color: var(--accent);
  border-color: var(--accent);
}

#host-code-badge {
  position: fixed;
  left: 16px;
  bottom: 16px;
  z-index: 90;
  display: flex;
  align-items: baseline;
  gap: 10px;
  background: rgba(12, 15, 14, 0.55);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 8px 18px;
  opacity: 0.3;
  pointer-events: none;
  font-size: 13px;
  color: var(--text);
}
#host-code-badge .mono {
  color: var(--accent);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.14em;
}

/* Host */

.host-intro { display: grid; gap: 14px; justify-items: start; max-width: 720px; }
.host-intro p { margin: 0; color: var(--muted); }

.share-card { margin-top: 20px; max-width: 720px; display: grid; gap: 12px; }

.host-log-block { display: grid; gap: 6px; }
.host-log {
  margin: 0;
  max-height: 180px;
  overflow: auto;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.code-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.code-label { color: var(--muted); font-size: 13px; }
.code-value {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
}

/* Avatar */

.avatar-layout {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr) 300px;
  gap: 20px;
  align-items: start;
}

.cat-rail {
  display: grid;
  gap: 4px;
  position: sticky;
  top: calc(var(--nav-height) + 16px);
}
.cat-rail button {
  border: none;
  background: transparent;
  color: var(--muted);
  text-align: left;
  font: inherit;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: var(--radius-control);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  transition: background 0.2s, color 0.2s;
}
.cat-rail button:hover { color: var(--text); background: var(--surface-2); }
.cat-rail button.is-active { color: var(--accent-ink); background: var(--accent); }
.cat-rail .count { font-size: 12px; color: inherit; opacity: 0.7; }

.cat-main { display: grid; gap: 14px; align-content: start; }

.search { width: 100%; }

.item-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: 10px;
}

.item-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 6px;
  cursor: pointer;
  position: relative;
  display: grid;
  gap: 4px;
  text-align: left;
  color: var(--text);
  font: inherit;
  transition: border-color 0.15s, transform 0.15s;
}
.item-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.item-card img {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 8px;
  background: var(--surface-2);
  object-fit: contain;
}
.item-card .item-name {
  font-size: 11.5px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.item-card.is-selected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.item-card .check-mark {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 11px;
  font-weight: 700;
  display: none;
  align-items: center;
  justify-content: center;
}
.item-card.is-selected .check-mark { display: inline-flex; }

.preview-col {
  position: sticky;
  top: calc(var(--nav-height) + 16px);
  display: grid;
  gap: 14px;
}

.preview-frame {
  position: relative;
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background:
    radial-gradient(circle at 50% 42%, rgba(116, 217, 188, 0.08), transparent 62%),
    var(--surface);
  overflow: hidden;
  display: grid;
  place-items: center;
}
.preview-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.preview-empty { color: #5c6a63; font-size: 13px; padding: 20px; text-align: center; }

.preview-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 11px;
  color: var(--accent);
  background: rgba(12, 15, 14, 0.75);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 3px 10px;
}

.preview-skeleton, .shimmer {
  position: absolute;
  inset: 0;
}
.shimmer {
  background: linear-gradient(100deg, transparent 30%, rgba(116, 217, 188, 0.07) 50%, transparent 70%);
  background-size: 220% 100%;
  animation: shimmer 1.4s linear infinite;
}
@keyframes shimmer {
  from { background-position: 130% 0; }
  to { background-position: -90% 0; }
}

.preview-status { margin: -6px 0 0; min-height: 1.2em; font-size: 12px; color: var(--muted); }
.preview-status.is-error { color: var(--danger); }

.preview-control { display: grid; gap: 8px; }
.preview-control > label,
.preview-control > span { font-size: 13px; color: var(--muted); }

.swatches { display: flex; gap: 8px; flex-wrap: wrap; }

.custom-color {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
}
.custom-color input {
  width: 34px;
  height: 28px;
  padding: 2px;
  cursor: pointer;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
}
.swatch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--border-strong);
  cursor: pointer;
  padding: 0;
  transition: transform 0.15s, border-color 0.15s;
}
.swatch:hover { transform: scale(1.1); }
.swatch.is-active { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-ink), 0 0 0 3px var(--accent); }

.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  color: var(--muted);
}
.chip button {
  border: none;
  background: none;
  color: inherit;
  cursor: pointer;
  font: inherit;
  padding: 0;
}
.chip button:hover { color: var(--danger); }

.preview-actions { display: flex; gap: 10px; }

.grid-status {
  color: var(--muted);
  font-size: 13px;
  grid-column: 1 / -1;
  padding: 20px 0;
  text-align: center;
}

.pager {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 6px 0;
}
.pager .btn { min-height: 36px; padding: 6px 14px; }

/* Studio */

.studio-frame { height: min(80dvh, 860px); }

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 22px 20px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  max-width: 1240px;
  margin: 0 auto;
  width: 100%;
}
.site-footer p { margin: 0; font-size: 13px; }

/* Responsive */

@media (max-width: 1020px) {
  .avatar-layout { grid-template-columns: 150px minmax(0, 1fr); }
  .preview-col {
    grid-column: 1 / -1;
    position: static;
    grid-template-columns: minmax(0, 320px) 1fr;
    align-items: start;
  }
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  .nav-links { overflow-x: auto; }
  .runtime-pill { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 8px; }
  .quick-grid { grid-template-columns: 1fr; }
  .community-section { grid-template-columns: 1fr; gap: 24px; }
  .discord-widget-shell { justify-self: start; }
}

@media (max-width: 640px) {
  .avatar-layout { grid-template-columns: 1fr; }
  .cat-rail {
    position: static;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  }
  .preview-col { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}