:root {
  --ink: #f6f3ea;
  --ink-2: rgba(246, 243, 234, .74);
  --glass: rgba(18, 24, 15, .5);
  --glass-2: rgba(18, 24, 15, .68);
  --line: rgba(255, 255, 255, .14);
  --leaf: #9fd067;
  --tomato: #ee5a3c;
  --sun: #f7c948;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --blur: blur(16px) saturate(150%);
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; background: #9ab8cf; color: var(--ink); font: 15px/1.45 var(--sans); }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; }
svg { width: 1.25em; height: 1.25em; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; flex: none; }
:focus-visible { outline: 2px solid var(--sun); outline-offset: 2px; }

#scene { position: fixed; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; outline: none; }

.glass { background: var(--glass); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--line); }

/* top bar */
.top { position: fixed; top: 18px; left: 22px; right: 22px; display: flex; justify-content: space-between; align-items: flex-start; pointer-events: none; }
.top > * { pointer-events: auto; }
.brand { text-shadow: 0 1px 12px rgba(0, 0, 0, .35); }
.kicker { margin: 0; font: 600 12px/1 var(--sans); letter-spacing: .18em; text-transform: uppercase; }
.day { margin: 6px 0 0; font: 400 28px/1 var(--serif); font-variant-numeric: tabular-nums; }
.health { display: flex; align-items: center; gap: 9px; padding: 9px 14px; border-radius: 99px; background: var(--glass); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--line); font-size: 14px; transition: background .3s; }
.health .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--leaf); box-shadow: 0 0 0 4px rgba(159, 208, 103, .25); transition: background .3s, box-shadow .3s; }
.health.warn .dot { background: var(--sun); box-shadow: 0 0 0 4px rgba(247, 201, 72, .28); animation: pulse 1.6s infinite; }
.health.warn:hover { background: var(--glass-2); }
@keyframes pulse { 50% { box-shadow: 0 0 0 7px rgba(247, 201, 72, 0); } }

/* stage caption */
.caption { position: fixed; left: 22px; bottom: 112px; max-width: min(430px, calc(100vw - 130px)); padding: 18px 20px 16px; border-radius: 18px; background: var(--glass); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--line); }
.caption.swap > * { animation: rise .6s cubic-bezier(.2, .8, .2, 1) both; }
.caption.swap > :nth-child(2) { animation-delay: .04s; }
.caption.swap > :nth-child(3) { animation-delay: .08s; }
.caption.swap > :nth-child(4) { animation-delay: .12s; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }
.step { margin: 0; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); }
.caption h1 { margin: 4px 0 6px; font: 400 32px/1.1 var(--serif); }
.caption p#cap-text { margin: 0; color: var(--ink-2); }
.cap-row { display: flex; gap: 12px; align-items: center; margin-top: 12px; flex-wrap: wrap; }
.try { display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px 6px 9px; border-radius: 99px; border: 1px solid rgba(247, 201, 72, .5); background: rgba(247, 201, 72, .12); font-size: 13px; transition: background .2s; }
.try:hover { background: rgba(247, 201, 72, .24); }
.try[hidden] { display: none; }
.basket { display: inline-flex; align-items: center; gap: 7px; margin: 0; font-size: 13px; color: var(--ink); }
.basket[hidden] { display: none; }

/* systems dock */
.dock { position: fixed; right: 18px; top: 50%; transform: translateY(-50%); display: flex; flex-direction: column; gap: 8px; padding: 8px; border-radius: 22px; background: var(--glass); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--line); }
.dock button { display: grid; justify-items: center; gap: 3px; width: 62px; padding: 10px 0 8px; border: 0; border-radius: 15px; background: transparent; font-size: 11.5px; letter-spacing: .02em; transition: background .2s, color .2s; }
.dock button svg { width: 24px; height: 24px; }
.dock button:hover { background: rgba(255, 255, 255, .1); }
.dock button[aria-expanded="true"] { background: var(--ink); color: #1b2415; }

.panels { position: fixed; right: 102px; top: 50%; transform: translateY(-50%); width: 300px; pointer-events: none; }
.panel { position: relative; padding: 18px 18px 18px; border-radius: 18px; background: var(--glass-2); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--line); pointer-events: auto; animation: slide .35s cubic-bezier(.2, .8, .2, 1); }
@keyframes slide { from { opacity: 0; transform: translateX(10px); } }
.panel h2 { margin: 0 0 6px; font: 400 24px/1.1 var(--serif); }
.panel p { margin: 0 0 14px; color: var(--ink-2); font-size: 14px; }
.close { position: absolute; top: 10px; right: 10px; width: 30px; height: 30px; border: 0; border-radius: 50%; background: rgba(255, 255, 255, .08); font-size: 20px; line-height: 1; }
.close:hover { background: rgba(255, 255, 255, .18); }
.seg { display: flex; padding: 3px; gap: 3px; border-radius: 12px; background: rgba(0, 0, 0, .25); margin-bottom: 12px; }
.seg button { flex: 1; padding: 8px 6px; border: 0; border-radius: 9px; background: transparent; font-size: 13px; line-height: 1.2; transition: background .2s, color .2s; }
.seg button:hover { background: rgba(255, 255, 255, .08); }
.seg button[aria-pressed="true"] { background: var(--ink); color: #1b2415; font-weight: 600; }
.action { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; padding: 10px; border-radius: 12px; border: 1px solid var(--line); background: rgba(255, 255, 255, .08); transition: background .2s; }
.action:hover { background: rgba(255, 255, 255, .16); }
.action[aria-pressed="true"] { background: rgba(159, 208, 103, .25); border-color: rgba(159, 208, 103, .6); }
.slider { display: grid; grid-template-columns: 1fr auto; gap: 6px; font-size: 13px; color: var(--ink-2); }
.slider output { color: var(--ink); font-variant-numeric: tabular-nums; }
.slider input { grid-column: 1 / -1; }

/* ranges */
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; margin: 0; background: transparent; cursor: pointer; }
input[type=range]::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .28); }
input[type=range]::-moz-range-track { height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .28); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; margin-top: -7px; border-radius: 50%; background: var(--ink); border: 0; box-shadow: 0 1px 6px rgba(0, 0, 0, .35); }
input[type=range]::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: var(--ink); border: 0; box-shadow: 0 1px 6px rgba(0, 0, 0, .35); }
#tod::-webkit-slider-runnable-track { background: linear-gradient(90deg, #f29a5c, #fff2c2 50%, #f29a5c); }
#tod::-moz-range-track { background: linear-gradient(90deg, #f29a5c, #fff2c2 50%, #f29a5c); }

/* timeline */
.timeline { position: fixed; left: 22px; right: 22px; bottom: 18px; display: flex; align-items: flex-end; gap: 16px; padding: 12px 22px 12px 12px; border-radius: 20px; background: var(--glass); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--line); }
.play { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; border: 0; background: var(--ink); color: #1b2415; flex: none; transition: transform .15s; }
.play:active { transform: scale(.94); }
.play svg { width: 24px; height: 24px; }
.play.nudge { animation: nudge 2s infinite; }
@keyframes nudge { 50% { box-shadow: 0 0 0 10px rgba(246, 243, 234, 0); } 0% { box-shadow: 0 0 0 0 rgba(246, 243, 234, .5); } }
.track { position: relative; flex: 1; padding-top: 30px; }
#scrub::-webkit-slider-runnable-track { height: 6px; background: linear-gradient(90deg, #7a5a3c 0%, #8fbf5a 30%, #5f9e3a 58%, #f3cd3c 66%, #6ea03a 76%, #e0452b 100%); }
#scrub::-moz-range-track { height: 6px; background: linear-gradient(90deg, #7a5a3c 0%, #8fbf5a 30%, #5f9e3a 58%, #f3cd3c 66%, #6ea03a 76%, #e0452b 100%); }
#scrub::-webkit-slider-thumb { width: 22px; height: 22px; margin-top: -8px; border: 3px solid #1b2415; }
.stages { position: absolute; left: 0; right: 0; top: 0; height: 30px; margin: 0; padding: 0; list-style: none; }
.stages li { position: absolute; top: 0; transform: translateX(0); }
.stages button { padding: 4px 8px; border: 0; border-radius: 8px; background: transparent; color: var(--ink-2); font-size: 12.5px; white-space: nowrap; transition: color .2s, background .2s; }
.stages button::before { content: ""; position: absolute; left: 0; bottom: -6px; width: 1px; height: 8px; background: rgba(255, 255, 255, .45); }
.stages button:hover { color: var(--ink); background: rgba(255, 255, 255, .1); }
.stages button[aria-current="step"] { color: var(--ink); font-weight: 600; }

/* 3D hotspots */
#dots { position: fixed; inset: 0; pointer-events: none; }
.hs { position: absolute; left: 0; top: 0; display: flex; align-items: center; gap: 6px; padding: 0; border: 0; background: none; pointer-events: auto; transition: opacity .3s; }
.hs i { position: relative; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: rgba(18, 24, 15, .55); backdrop-filter: blur(6px); border: 1.5px solid rgba(255, 255, 255, .8); }
.hs i::after { content: ""; position: absolute; inset: -6px; border-radius: 50%; border: 1.5px solid rgba(255, 255, 255, .6); animation: ring 2.4s infinite; }
@keyframes ring { from { transform: scale(.7); opacity: 1; } to { transform: scale(1.5); opacity: 0; } }
.hs svg { width: 17px; height: 17px; }
.hs b { padding: 3px 8px; border-radius: 99px; background: rgba(18, 24, 15, .6); font: 500 12px/1.4 var(--sans); opacity: 0; transform: translateX(-4px); transition: opacity .2s, transform .2s; }
.hs:hover b { opacity: 1; transform: none; }
.hs.off { opacity: 0; pointer-events: none; }

.hint { position: fixed; left: 50%; top: 22px; transform: translateX(-50%); margin: 0; padding: 7px 14px; border-radius: 99px; background: var(--glass); backdrop-filter: var(--blur); font-size: 13px; transition: opacity .8s; pointer-events: none; }
.hint.gone { opacity: 0; }
.fail { position: fixed; inset: 0; display: grid; place-items: center; margin: 0; padding: 30px; text-align: center; background: #2a3322; font-size: 18px; }
.fail[hidden] { display: none; }
.grab { cursor: pointer; }

@media (max-width: 760px) {
  .caption { left: 12px; right: 12px; bottom: 170px; max-width: none; padding: 14px 16px; }
  .caption h1 { font-size: 26px; }
  .dock { top: auto; bottom: 96px; right: 12px; left: 12px; transform: none; flex-direction: row; justify-content: space-around; padding: 5px; border-radius: 18px; }
  .dock button { width: auto; flex: 1; padding: 7px 0 5px; }
  .panels { right: 12px; left: 12px; width: auto; top: auto; bottom: 170px; transform: none; }
  .timeline { left: 12px; right: 12px; bottom: 12px; padding: 10px 14px 10px 10px; gap: 12px; }
  .play { width: 44px; height: 44px; }
  .stages button { font-size: 0; padding: 4px; }
  .stages button[aria-current="step"] { font-size: 12px; }
  .hint { display: none; }
  .top { left: 14px; right: 14px; top: 12px; }
  .day { font-size: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}