:root {
  --glass: rgba(9, 20, 18, 0.56);
  --glass-strong: rgba(9, 20, 18, 0.78);
  --edge: rgba(186, 222, 206, 0.13);
  --edge-strong: rgba(186, 222, 206, 0.28);
  --fg: #e4eee9;
  --muted: #8fa59c;
  --brass: #c8a064;
  --brass-soft: rgba(200, 160, 100, 0.16);
  --fg-soft: rgba(228, 238, 233, 0.82);
  --sans: 'Geist', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --display: 'Geist', ui-sans-serif, system-ui, -apple-system, 'Helvetica Neue', sans-serif;
  --r: 12px;
  --gutter: 22px;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: #000; color: var(--fg); overflow: hidden; }
body { font-family: var(--sans); font-size: 14px; line-height: 1.45; letter-spacing: -0.006em; -webkit-font-smoothing: antialiased; }
#scene { position: fixed; inset: 0; display: block; width: 100vw; height: 100vh; touch-action: none; cursor: grab; outline: none; }
#scene:active { cursor: grabbing; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

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

/* ---------- loader */
.loader {
  position: fixed; inset: 0; display: grid; place-content: center; text-align: center;
  background: #000; z-index: 50; transition: opacity 1.2s ease;
}
.loader.done { opacity: 0; pointer-events: none; }
.loader { justify-items: center; }
.loader-mark { width: 34px; height: 68px; margin-bottom: 20px; overflow: visible; }
.loader-mark .mc-water { animation: fill 2.6s cubic-bezier(0.3, 0.1, 0.2, 1) both; }
.loader-mark .mc-bubble { animation: bubble 2.6s ease-out both; }
.loader-title { font-family: var(--display); font-weight: 500; font-size: clamp(26px, 3.4vw, 34px); margin: 0; letter-spacing: -0.035em; color: var(--fg); }
.loader-line { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
@keyframes fill { from { transform: translateY(15px); } to { transform: translateY(0); } }
@keyframes bubble { 0%, 55% { opacity: 0; transform: translateY(4px); } 100% { opacity: 1; transform: translateY(0); } }

/* ---------- masthead */
.ui { position: fixed; inset: 0; pointer-events: none; z-index: 10; }
.ui > * { pointer-events: auto; }
.masthead { position: absolute; left: var(--gutter); top: 18px; pointer-events: none; max-width: 50vw; display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 19px; height: 38px; flex: none; overflow: visible; filter: drop-shadow(0 1px 10px rgba(0, 0, 0, 0.6)); }
.brand-mark .mc-water { transform-origin: 10px 26px; transform-box: view-box; }
.brand-mark.slosh .mc-water { animation: slosh 1.6s cubic-bezier(0.3, 0.6, 0.3, 1); }
@keyframes slosh { 0% { transform: rotate(0); } 18% { transform: rotate(-16deg) translateY(-1px); } 42% { transform: rotate(10deg); } 66% { transform: rotate(-5deg); } 84% { transform: rotate(2deg); } 100% { transform: rotate(0); } }
.brand-text { min-width: 0; }
.title { font-family: var(--display); font-weight: 500; font-size: 21px; line-height: 1.1; margin: 0; letter-spacing: -0.03em; text-shadow: 0 1px 14px rgba(0, 0, 0, 0.6); }
.subtitle { margin: 3px 0 0; color: var(--muted); font-size: 12.5px; letter-spacing: -0.005em; text-shadow: 0 1px 10px rgba(0, 0, 0, 0.7); }

/* ---------- glass panel */
.panel-toggle {
  position: absolute; right: var(--gutter); top: 18px; display: flex; align-items: center; gap: 8px;
  padding: 8px 14px 8px 11px; border-radius: 999px; border: 1px solid var(--edge); background: var(--glass);
  backdrop-filter: blur(14px) saturate(1.2); -webkit-backdrop-filter: blur(14px) saturate(1.2); font-size: 13px;
}
.panel-toggle svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 1.5; fill: none; }
.panel-toggle[aria-expanded='true'] { border-color: var(--edge-strong); }

.panel {
  position: absolute; right: var(--gutter); top: 64px; width: 304px; max-height: calc(100vh - 150px); overflow-y: auto;
  border: 1px solid var(--edge); border-radius: var(--r); background: var(--glass);
  backdrop-filter: blur(16px) saturate(1.25); -webkit-backdrop-filter: blur(16px) saturate(1.25);
  scrollbar-width: thin; scrollbar-color: rgba(186, 222, 206, 0.25) transparent;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.panel.closed { opacity: 0; transform: translateY(-6px); pointer-events: none; }
.group { padding: 14px 16px 16px; border-top: 1px solid var(--edge); }
.group:first-child { border-top: 0; }
.group h2 { font-family: var(--display); font-weight: 500; font-size: 15px; letter-spacing: -0.02em; margin: 0 0 12px; color: var(--fg); }
.hint-text { color: var(--muted); font-size: 12.5px; margin: -4px 0 10px; }
.group-head { display: flex; align-items: center; justify-content: space-between; margin: 0 0 12px; }
.group-head h2 { margin: 0; }
.switch-inline { margin: 0; }
.range-ends { display: flex; justify-content: space-between; color: var(--muted); font-size: 11.5px; margin-top: -1px; }

/* vessels */
.vessels { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.vessel {
  display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 8px 2px 6px; border-radius: 9px;
  border: 1px solid transparent; background: rgba(255, 255, 255, 0.02); font-size: 11.5px; color: var(--muted); line-height: 1.15; text-align: center;
}
.vessel svg { width: 34px; height: 46px; }
.vessel svg path { fill: rgba(186, 222, 206, 0.06); stroke: var(--muted); stroke-width: 1.1; }
.vessel:hover { color: var(--fg); }
.vessel[aria-checked='true'] { border-color: var(--brass-soft); background: var(--brass-soft); color: var(--fg); }
.vessel[aria-checked='true'] svg path { stroke: var(--brass); fill: rgba(200, 160, 100, 0.12); }

/* light presets */
.presets { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-bottom: 12px; }
.preset { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 8px 2px 6px; border-radius: 9px; border: 1px solid transparent; background: rgba(255, 255, 255, 0.02); font-size: 11.5px; color: var(--muted); }
.preset i { width: 26px; height: 26px; border-radius: 50%; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12); }
.preset:hover { color: var(--fg); }
.preset[aria-checked='true'] { border-color: var(--brass-soft); background: var(--brass-soft); color: var(--fg); }
.preset[aria-checked='true'] i { box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2), 0 0 0 2px var(--brass); }

/* fields */
.field { margin: 10px 0 0; }
.field label { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--muted); margin-bottom: 2px; }
.field output { color: var(--fg); font-variant-numeric: tabular-nums; }
input[type='range'] { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: transparent; margin: 0; }
input[type='range']::-webkit-slider-runnable-track { height: 2px; background: linear-gradient(90deg, var(--brass) var(--p, 50%), rgba(186, 222, 206, 0.18) var(--p, 50%)); border-radius: 2px; }
input[type='range']::-moz-range-track { height: 2px; background: rgba(186, 222, 206, 0.18); border-radius: 2px; }
input[type='range']::-moz-range-progress { height: 2px; background: var(--brass); }
input[type='range']::-webkit-slider-thumb { -webkit-appearance: none; width: 13px; height: 13px; border-radius: 50%; background: var(--fg); margin-top: -5.5px; box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.35); }
input[type='range']::-moz-range-thumb { width: 13px; height: 13px; border: 0; border-radius: 50%; background: var(--fg); }
input[type='range']:focus-visible { outline: none; }
input[type='range']:focus-visible::-webkit-slider-thumb { background: var(--brass); box-shadow: 0 0 0 3px rgba(200, 160, 100, 0.35); }

.switch { display: flex; align-items: center; gap: 10px; margin: 10px 0 0; font-size: 13px; cursor: pointer; user-select: none; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch-track { position: relative; width: 30px; height: 17px; border-radius: 999px; background: rgba(186, 222, 206, 0.16); transition: background 0.2s; flex: none; }
.switch-track::after { content: ''; position: absolute; left: 2px; top: 2px; width: 13px; height: 13px; border-radius: 50%; background: var(--fg); transition: transform 0.2s; }
.switch input:checked + .switch-track { background: var(--brass); }
.switch input:checked + .switch-track::after { transform: translateX(13px); background: #1b140a; }
.switch input:focus-visible + .switch-track { outline: 2px solid var(--brass); outline-offset: 2px; }

.seg { display: flex; gap: 2px; padding: 2px; border-radius: 999px; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--edge); margin-top: 12px; }
.seg button { flex: 1; padding: 6px 10px; border: 0; border-radius: 999px; background: transparent; font-size: 12.5px; color: var(--muted); white-space: nowrap; }
.seg button:hover { color: var(--fg); }
.seg button[aria-checked='true'] { background: var(--fg); color: #0c1513; }

/* census */
.census { list-style: none; margin: 0; padding: 0; display: grid; gap: 1px; counter-reset: plate; }
.census li { counter-increment: plate; }
.census button {
  width: 100%; display: grid; grid-template-columns: 26px 1fr auto; align-items: baseline; gap: 6px;
  padding: 6px 6px; border: 0; border-radius: 7px; background: transparent; text-align: left;
}
.census button::before { content: counter(plate); color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.census button:hover, .census button[aria-current='true'] { background: rgba(186, 222, 206, 0.07); }
.census .cn { font-size: 13px; letter-spacing: -0.01em; }
.census .ln { display: block; font-style: italic; color: var(--muted); font-size: 12px; letter-spacing: 0; }
.census.off button { opacity: 0.85; }
.census .ct { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }

/* ---------- dock */
.dock {
  position: absolute; left: 50%; bottom: 20px; transform: translateX(-50%); display: flex; align-items: center; gap: 10px;
  padding: 6px; border-radius: 999px; border: 1px solid var(--edge); background: var(--glass);
  backdrop-filter: blur(16px) saturate(1.25); -webkit-backdrop-filter: blur(16px) saturate(1.25); max-width: calc(100vw - 24px);
}
.dock .seg { margin: 0; border: 0; background: transparent; }
.dock .seg button { padding: 8px 14px; font-size: 13px; }
.actions { display: flex; gap: 4px; padding-left: 8px; border-left: 1px solid var(--edge); }
.actions button { padding: 8px 14px; border: 0; border-radius: 999px; background: transparent; font-size: 13px; color: var(--fg); }
.actions button:hover { background: rgba(186, 222, 206, 0.08); }
.actions button.on { background: var(--brass); color: #1b140a; }

/* ---------- specimen card: the resident being followed */
.tag {
  position: absolute; left: var(--gutter); bottom: 20px; width: 300px; padding: 16px 16px 12px; color: var(--fg);
  border: 1px solid var(--edge); border-radius: var(--r); background: var(--glass);
  backdrop-filter: blur(16px) saturate(1.25); -webkit-backdrop-filter: blur(16px) saturate(1.25);
  animation: tagIn 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.tag-name { margin: 0; font-family: var(--display); font-weight: 500; font-size: 19px; line-height: 1.15; letter-spacing: -0.025em; }
.tag-latin { margin: 2px 0 10px; font-style: italic; font-size: 13px; color: var(--muted); }
.tag-note { margin: 0; font-size: 13px; line-height: 1.5; color: var(--fg-soft); }
.tag-size { margin: 8px 0 0; font-size: 12.5px; color: var(--muted); }
.tag-switch { margin: 12px -16px 0; padding: 10px 16px 0; border-top: 1px solid var(--edge); }
.tag-switch-hint { margin-left: auto; color: var(--muted); font-size: 12px; }
.tag-nav { display: flex; align-items: center; gap: 8px; margin: 12px -16px 0; padding: 10px 16px 0; border-top: 1px solid var(--edge); }
.tag-step { display: flex; align-items: center; gap: 2px; padding: 2px; border-radius: 999px; border: 1px solid var(--edge); background: rgba(255, 255, 255, 0.03); }
.tag-step button { display: grid; place-items: center; width: 28px; height: 26px; border: 0; border-radius: 999px; background: transparent; color: var(--fg); }
.tag-step button:hover { background: rgba(186, 222, 206, 0.1); }
.tag-step svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.tag-count { min-width: 44px; text-align: center; font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.tag-stop { margin-left: auto; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--edge-strong); background: transparent; font-size: 12.5px; color: var(--fg); }
.tag-stop:hover { background: rgba(186, 222, 206, 0.08); }
@keyframes tagIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.help { position: absolute; left: 50%; bottom: 76px; transform: translateX(-50%); margin: 0; color: var(--muted); font-size: 12.5px; text-shadow: 0 1px 8px #000; pointer-events: none; transition: opacity 1s; white-space: nowrap; }
.help.gone { opacity: 0; }
.credit { position: absolute; right: var(--gutter); bottom: 26px; margin: 0; font-size: 12px; color: var(--muted); }
.credit a { color: var(--fg); text-decoration: none; border-bottom: 1px solid var(--edge-strong); }

/* ---------- intro: captions over the opening edit */
.ui { transition: opacity 0.9s ease; }
.ui.entering { opacity: 0; }
.intro { position: fixed; inset: 0; z-index: 20; pointer-events: none; transition: opacity 0.6s ease; }
.intro.out { opacity: 0; }
.intro::before {
  /* a soft shade behind the captions so they read over any shot */
  content: ''; position: absolute; left: 0; bottom: 0; width: min(900px, 90vw); height: 55vh;
  background: radial-gradient(120% 100% at 0% 100%, rgba(0, 0, 0, 0.55), transparent 70%);
}
.intro-captions { position: absolute; left: calc(var(--gutter) + 18px); bottom: 15vh; right: 30vw; }
.intro-captions > * {
  position: absolute; left: 0; bottom: 0; margin: 0; opacity: 0; transform: translateY(12px); filter: blur(8px);
  transition: opacity 0.45s ease, transform 0.45s ease, filter 0.45s ease;
}
.intro-captions > .on { opacity: 1; transform: none; filter: none; transition: opacity 0.8s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1), filter 0.8s ease; }
.intro-card { display: flex; align-items: center; gap: 20px; }
.intro-mark { width: 30px; height: 60px; flex: none; overflow: visible; }
.intro-title { margin: 0; font-family: var(--display); font-weight: 500; font-size: clamp(38px, 5.2vw, 64px); line-height: 1; letter-spacing: -0.045em; }
.intro-sub { margin: 10px 0 0; color: var(--fg-soft); font-size: clamp(15px, 1.4vw, 18px); letter-spacing: -0.01em; }
.intro-line {
  max-width: 17em; font-family: var(--display); font-weight: 400; font-size: clamp(26px, 3.4vw, 44px); line-height: 1.12;
  letter-spacing: -0.035em; text-wrap: balance; text-shadow: 0 2px 24px rgba(0, 0, 0, 0.5);
}
.intro-skip {
  position: absolute; right: var(--gutter); bottom: 22px; pointer-events: auto; overflow: hidden;
  padding: 9px 16px 10px; border-radius: 999px; border: 1px solid var(--edge-strong); background: var(--glass);
  backdrop-filter: blur(14px) saturate(1.2); -webkit-backdrop-filter: blur(14px) saturate(1.2); font-size: 13px; color: var(--fg);
}
.intro-skip:hover { background: var(--glass-strong); }
.intro-bar { position: absolute; left: 14px; right: 14px; bottom: 5px; height: 1px; background: rgba(186, 222, 206, 0.16); }
.intro-bar i { position: absolute; inset: 0; background: var(--brass); transform-origin: 0 50%; transform: scaleX(0); }

/* ---------- photo mode */
.photo-bar {
  position: fixed; left: 50%; bottom: 18px; transform: translateX(-50%); z-index: 12; display: flex; align-items: end; gap: 18px;
  padding: 10px 14px; border-radius: 16px; border: 1px solid var(--edge); background: var(--glass-strong);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); max-width: calc(100vw - 24px); flex-wrap: wrap; justify-content: center;
}
.photo-bar .field { margin: 0; width: 170px; }
.photo-bar .switch { margin: 0 0 4px; }
.photo-hint { margin: 0 0 5px; color: var(--muted); font-size: 12px; }
.photo-bar button { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--edge-strong); background: transparent; font-size: 13px; }
.photo-bar button.primary { background: var(--brass); border-color: var(--brass); color: #1b140a; font-weight: 500; }
.ui.photo > :not(.flash) { opacity: 0; pointer-events: none; }
.ui.hidden-ui > * { opacity: 0; pointer-events: none; transition: opacity 0.4s; }
.flash { position: fixed; inset: 0; background: #fff; opacity: 0; pointer-events: none; z-index: 30; transition: opacity 0.5s ease; }
.flash.on { opacity: 0.55; transition: none; }

/* ---------- small screens */
@media (max-width: 760px) {
  :root { --gutter: 14px; }
  .subtitle { font-size: 12px; }
  .panel { left: 10px; right: 10px; width: auto; top: auto; bottom: 74px; max-height: 52vh; }
  .panel-toggle { top: 14px; padding: 7px 12px 7px 10px; }
  .dock { bottom: 12px; gap: 4px; padding: 4px; overflow-x: auto; }
  .dock .seg button, .actions button { padding: 7px 8px; font-size: 12px; }
  .dock { left: 8px; right: 8px; transform: none; justify-content: space-between; }
  .actions { padding-left: 4px; }
  .tag { left: 10px; right: 10px; width: auto; bottom: 74px; }
  .title { font-size: 18px; }
  .brand-mark { width: 16px; height: 32px; }
  .help { display: none; }
  .credit { top: 52px; right: 14px; bottom: auto; }
}
@media (max-width: 760px) {
  .intro-captions { left: 22px; right: 22px; bottom: 120px; }
  .intro-card { gap: 14px; }
  .intro-mark { width: 22px; height: 44px; }
  .intro-skip { bottom: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  .intro-captions > *, .intro-captions > .on { transform: none; filter: none; }
  .tag, .loader-mark .mc-water, .loader-mark .mc-bubble, .brand-mark.slosh .mc-water { animation: none; }
  .panel, .help, .loader { transition: none; }
}

/* headless test captures: software compositing can't afford backdrop blur */
.is-test .panel, .is-test .dock, .is-test .panel-toggle, .is-test .photo-bar, .is-test .tag, .is-test .intro-skip { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; background: var(--glass-strong); }