/* Squalor LLC — space visualizations
 * MPL-2.0
 * Brand tokens aligned with squalor.xyz / branding/STYLE_GUIDE.md
 */

:root {
  --bg: #0f1419;
  --bg-elevated: rgba(17, 27, 34, 0.88);
  --bg-panel: rgba(10, 18, 24, 0.82);
  --surface: #18242d;
  --surface-2: #223542;
  --text: #f4efe7;
  --muted: #b4c0c8;
  --accent: #6ee7d2;
  --accent-strong: #f6c177;
  --danger: #ff6b6b;
  --line: rgba(255, 255, 255, 0.1);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  --max-width: 960px;
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius: 12px;
  --panel: rgba(8, 15, 19, 0.82);
  --panel-border: rgba(255, 255, 255, 0.1);
  --font: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
}

/* Hub atmosphere (not applied to fullscreen demos) */
body:not(.demo-body) {
  background:
    radial-gradient(circle at top left, rgba(110, 231, 210, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(246, 193, 119, 0.16), transparent 24%),
    linear-gradient(180deg, #10181d 0%, #0d1317 42%, #121d23 100%);
  overflow-x: hidden;
}

body:not(.demo-body)::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 85%);
  opacity: 0.28;
  z-index: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-strong);
}

a:focus-visible,
.button:focus-visible,
.button-secondary:focus-visible,
.nav-links a:focus-visible,
.brand-link:focus-visible,
button.btn:focus-visible,
a.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

img {
  max-width: 100%;
  display: block;
}

/* ---- Shared chrome (hub) ---- */

.site-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.container {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.site-header {
  padding: 1.25rem 0 0.5rem;
}

.nav-bar {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 0.9rem 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 15, 19, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand-link:hover {
  color: inherit;
}

.logo-mark {
  width: 60px;
  height: 60px;
  max-width: 60px;
  max-height: 60px;
  aspect-ratio: 1;
  padding: 0;
  border-radius: 50%;
  background: transparent;
  border: none;
  flex-shrink: 0;
  object-fit: contain;
  display: block;
}

.brand-text {
  min-width: 0;
}

.brand-name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand-text p {
  margin: 0;
}

.brand-text p:not(.brand-name) {
  color: var(--muted);
  font-size: 0.88rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  padding: 0.65rem 0.95rem;
  border-radius: 999px;
  color: var(--text);
  font-size: 0.96rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  box-sizing: border-box;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

/* ---- Hub content ---- */

main {
  flex: 1;
  padding-bottom: 2rem;
}

.hero {
  padding: 3rem 0 1.5rem;
}

.hero-copy {
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 2.2rem 2.5rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
}

.hero-copy .tagline {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 42rem;
  line-height: 1.55;
  margin: 0 0 1.25rem;
}

.hub-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.section {
  padding: 1rem 0;
}

.hub-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
}

.card {
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: rgba(110, 231, 210, 0.35);
  transform: translateY(-2px);
}

.card h2 {
  margin: 0 0 0.55rem;
  font-size: 1.2rem;
  color: var(--text);
}

.card p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.button,
.button-secondary,
.card .cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.2rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9rem;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
  text-decoration: none;
}

.button,
.card .cta {
  color: #122026;
  background: linear-gradient(135deg, var(--accent), #9ff0e2);
}

.button:hover,
.card .cta:hover {
  transform: translateY(-1px);
  color: #122026;
  text-decoration: none;
}

.button-secondary {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.button-secondary:hover {
  transform: translateY(-1px);
  color: var(--text);
}

.hub-note {
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 1.5rem;
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.55;
}

.hub-note strong {
  color: var(--text);
}

.footer {
  padding: 1.5rem 0 3rem;
  margin-top: auto;
}

.footer-bar {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 1.2rem 1.3rem;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(8, 15, 19, 0.78);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy {
  color: var(--muted);
  font-size: 0.94rem;
}

.footer-copy strong {
  color: var(--text);
}

.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.94rem;
}

/* ---- Demo layout ---- */

.demo-body {
  overflow: hidden;
  height: 100vh;
  height: 100dvh;
  width: 100%;
  max-width: 100vw;
  position: relative;
  background: #000;
  /* Prevent pull-to-refresh / overscroll fighting the canvas on mobile */
  touch-action: none;
  overscroll-behavior: none;
  -webkit-user-select: none;
  user-select: none;
}

.demo-body::before {
  display: none;
}

.demo-body canvas {
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  touch-action: none;
}

.panel {
  position: absolute;
  z-index: 10;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
  /* Allow scrolling panels / using sliders */
  touch-action: manipulation;
  -webkit-user-select: text;
  user-select: text;
}

.panel-notice {
  top: max(12px, env(safe-area-inset-top, 0px));
  left: max(12px, env(safe-area-inset-left, 0px));
  max-width: min(380px, calc(100vw - 24px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px)));
  padding: 10px 12px;
  color: var(--muted);
  font-size: 11px;
}

.panel-notice a {
  color: var(--accent);
}

.panel-controls {
  top: max(12px, env(safe-area-inset-top, 0px));
  right: max(12px, env(safe-area-inset-right, 0px));
  width: min(280px, calc(100vw - 24px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px)));
  padding: 14px 16px;
  max-height: calc(100dvh - 24px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.panel-controls h3 {
  margin: 0 0 12px;
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.panel-header h3,
.panel-header h1 {
  margin: 0;
}

.panel-info {
  bottom: max(16px, env(safe-area-inset-bottom, 0px));
  right: max(12px, env(safe-area-inset-right, 0px));
  max-width: min(300px, calc(100vw - 24px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px)));
  padding: 14px 16px;
  max-height: min(50vh, 360px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.panel-info h1 {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--accent);
}

.panel-info p {
  margin: 0 0 8px;
  color: var(--muted);
}

.panel-info p:last-child {
  margin-bottom: 0;
}

.panel-info .accent {
  color: var(--accent-strong);
}

.control-group {
  margin-bottom: 12px;
}

.control-group:last-child {
  margin-bottom: 0;
}

.control-group label {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  color: var(--text);
}

.control-group .row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-group input[type="range"] {
  flex: 1;
  min-width: 0;
  accent-color: var(--accent);
  height: 28px;
}

.control-group .value {
  min-width: 2.5rem;
  text-align: right;
  font-size: 11px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.control-group select {
  width: 100%;
  background: rgba(0, 0, 0, 0.4);
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 10px 8px;
  font-size: 14px;
  min-height: 44px;
  font-family: inherit;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

button.btn,
a.btn {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 13px;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

button.btn:hover,
a.btn:hover {
  background: rgba(110, 231, 210, 0.12);
  border-color: rgba(110, 231, 210, 0.35);
  color: var(--text);
  text-decoration: none;
}

button.btn-icon {
  min-width: 44px;
  min-height: 44px;
  padding: 8px 10px;
  font-size: 18px;
  line-height: 1;
  border-radius: 50%;
}

.error-banner {
  position: absolute;
  z-index: 20;
  left: 50%;
  top: 40%;
  transform: translate(-50%, -50%);
  max-width: min(480px, calc(100vw - 32px));
  background: rgba(40, 10, 10, 0.92);
  border: 1px solid var(--danger);
  color: #ffd0d0;
  padding: 16px 18px;
  border-radius: var(--radius);
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  display: none;
  touch-action: manipulation;
}

.error-banner.visible {
  display: block;
}

/* Floating toolbar (mobile-first chrome; always available) */
.demo-toolbar {
  position: absolute;
  z-index: 15;
  top: max(12px, env(safe-area-inset-top, 0px));
  right: max(12px, env(safe-area-inset-right, 0px));
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  touch-action: manipulation;
}

.demo-toolbar .btn {
  background: rgba(8, 15, 19, 0.88);
  box-shadow: var(--shadow);
}

.scrubber-bar {
  position: absolute;
  z-index: 12;
  left: 50%;
  bottom: max(16px, env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  width: min(720px, calc(100vw - 24px - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px)));
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  touch-action: manipulation;
}

.scrubber-bar input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  height: 32px;
  min-height: 44px;
}

.scrubber-bar .label {
  font-size: 11px;
  color: var(--muted);
  min-width: 3.5rem;
  font-variant-numeric: tabular-nums;
}

/* Desktop: panels open; toolbar less critical but kept for consistency */
@media (min-width: 641px) {
  .demo-toolbar {
    /* sit left of controls when open */
    right: max(12px, env(safe-area-inset-right, 0px));
  }

  body.controls-open .demo-toolbar {
    right: calc(min(280px, 40vw) + 24px + env(safe-area-inset-right, 0px));
  }

  .panel-controls[hidden],
  .panel-info[hidden] {
    display: none !important;
  }
}

/* Mobile: collapse panels; use toolbar + bottom sheets */
@media (max-width: 640px) {
  .panel-notice {
    font-size: 10px;
    /* leave room for toolbar on the right */
    max-width: min(220px, calc(100vw - 140px));
  }

  .panel-controls {
    top: auto;
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
    right: max(8px, env(safe-area-inset-right, 0px));
    left: max(8px, env(safe-area-inset-left, 0px));
    width: auto;
    max-height: min(48dvh, 360px);
    z-index: 16;
  }

  .panel-info {
    top: max(56px, calc(env(safe-area-inset-top, 0px) + 52px));
    bottom: auto;
    right: max(8px, env(safe-area-inset-right, 0px));
    left: max(8px, env(safe-area-inset-left, 0px));
    max-width: none;
    max-height: min(50dvh, 320px);
    z-index: 16;
  }

  /* Hide until opened — works before JS and with [hidden] */
  body:not(.controls-open) .panel-controls,
  .panel-controls[hidden] {
    display: none !important;
  }

  body:not(.about-open) .panel-info,
  .panel-info[hidden] {
    display: none !important;
  }

  .scrubber-bar {
    bottom: max(16px, env(safe-area-inset-bottom, 0px));
  }

  /* When controls sheet open, lift scrubber above it */
  body.has-scrubber.controls-open .scrubber-bar {
    bottom: calc(max(12px, env(safe-area-inset-bottom, 0px)) + min(48dvh, 360px) + 10px);
  }
}

/* Hub responsive */
@media (max-width: 760px) {
  .site-header {
    padding-top: 0.9rem;
  }

  .nav-bar {
    border-radius: 28px;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero {
    padding-top: 2rem;
  }

  .hero-copy {
    padding: 1.25rem;
  }

  .hero h1 {
    font-size: clamp(2rem, 12vw, 2.8rem);
  }

  .footer-bar {
    border-radius: 20px;
  }
}

/* Coarse pointer: larger thumbs / targets */
@media (pointer: coarse) {
  .control-group input[type="range"],
  .scrubber-bar input[type="range"] {
    min-height: 44px;
  }

  button.btn,
  a.btn {
    min-height: 44px;
  }
}

/* Landscape phone: keep canvas visible — thinner sheets */
@media (max-width: 900px) and (max-height: 480px) and (orientation: landscape) {
  .panel-controls {
    max-height: min(70dvh, 100%);
    width: min(320px, 45vw);
    left: auto;
    right: max(8px, env(safe-area-inset-right, 0px));
    bottom: max(8px, env(safe-area-inset-bottom, 0px));
    top: max(8px, env(safe-area-inset-top, 0px));
  }

  .panel-notice {
    display: none;
  }

  body.has-scrubber.controls-open .scrubber-bar {
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
    width: min(50vw, 400px);
    left: max(12px, env(safe-area-inset-left, 0px));
    transform: none;
  }
}