:root {
  --display: 'Silkscreen', 'Courier New', monospace;
  --body: 'Nunito Sans', system-ui, sans-serif;
  --mono: 'Azeret Mono', ui-monospace, monospace;

  --ink: #d8f1f5;
  --ink-dim: #86b0bd;
  --panel: rgba(4, 16, 30, 0.82);
  --panel-line: #1f4a66;
  --lamp: #ffb43a;
  --lamp-ink: #2a1500;
  --bad: #ff6b57;

  --t-common: #6fb7d6;
  --t-uncommon: #6fd6a1;
  --t-rare: #ffd166;
  --t-deep: #ff9248;
  --t-abyssal: #ff5d73;
  --t-miss: #3a4a58;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: #06182b;
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.45;
  overflow: hidden;
}
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
[hidden] { display: none !important; }

#sea {
  position: fixed; inset: 0; width: 100%; height: 100%;
  image-rendering: pixelated; image-rendering: crisp-edges;
}

/* top bar */
.bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 5;
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 16px; padding-top: max(14px, env(safe-area-inset-top));
}
.logo {
  font-family: var(--display); font-weight: 700; font-size: 22px; letter-spacing: 0.18em;
  color: #fff; text-shadow: 2px 2px 0 rgba(0, 30, 60, 0.55);
}
.bar-right { display: flex; gap: 10px; align-items: center; }
.chip {
  font-size: 12px; padding: 5px 9px; border: 1px solid var(--panel-line);
  background: var(--panel); color: var(--ink); letter-spacing: 0.04em;
}

/* gauge */
#gauge {
  position: fixed; right: 12px; top: 74px; bottom: 28px; width: 74px; z-index: 4;
  display: flex; justify-content: flex-end; pointer-events: none;
}
.gauge-track {
  position: relative; width: 4px; height: 100%; background: rgba(216, 241, 245, 0.18);
}
#gauge-fill { position: absolute; left: 0; right: 0; top: 0; height: 0; background: var(--lamp); }
#gauge-mark { position: absolute; right: -5px; width: 14px; height: 14px; margin-top: -7px; background: var(--lamp); top: 0; }
#gauge-read {
  position: absolute; right: 0; top: -26px; white-space: nowrap; font-size: 12px; color: var(--lamp);
  background: var(--panel); padding: 2px 6px; border: 1px solid var(--panel-line);
}
#gauge-ticks { position: absolute; inset: 0 18px 0 0; }
.tick {
  position: absolute; right: 8px; font-family: var(--mono); font-size: 10px; color: var(--ink-dim);
  transform: translateY(-50%); white-space: nowrap; text-shadow: 0 0 4px #000;
}

/* main stage */
#stage {
  position: fixed; inset: 0; z-index: 3; display: flex; align-items: flex-end; justify-content: center;
  padding: 16px; padding-right: 96px; padding-bottom: max(26px, env(safe-area-inset-bottom));
  pointer-events: none;
}
.panel {
  pointer-events: auto; width: min(560px, 100%); max-height: calc(100vh - 110px); overflow-y: auto;
  background: var(--panel); border: 2px solid var(--panel-line); padding: 22px 22px 20px;
  box-shadow: 0 0 0 4px rgba(2, 8, 16, 0.5), 6px 6px 0 rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(3px);
}
.title {
  font-family: var(--display); font-weight: 700; font-size: clamp(24px, 8vw, 54px); letter-spacing: 0.1em;
  margin: 0; line-height: 1; color: #fff; text-shadow: 3px 3px 0 #0b3555, -2px -2px 0 rgba(255, 180, 58, 0.55);
}
.sub { font-family: var(--display); letter-spacing: 0.35em; font-size: 12px; color: var(--lamp); margin: 10px 0 14px; text-transform: uppercase; }
.rules { color: var(--ink-dim); margin: 0 0 16px; }
.note { color: var(--ink-dim); font-size: 14px; margin: 10px 0 0; min-height: 1.2em; }
.kicker { font-family: var(--display); letter-spacing: 0.3em; font-size: 12px; color: var(--ink-dim); margin: 0; text-transform: uppercase; }
.panel-title { font-family: var(--display); font-size: 18px; letter-spacing: 0.2em; margin: 0 0 12px; text-transform: uppercase; }

.pot {
  border: 1px dashed var(--lamp); padding: 9px 12px; margin: 0 0 16px; font-size: 14px; color: var(--ink);
}
.pot b { color: var(--lamp); font-family: var(--mono); font-weight: 500; }

/* buttons */
.btn {
  font-family: var(--display); font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; font-size: 14px;
  background: var(--lamp); color: var(--lamp-ink); border: 0; padding: 14px 20px; cursor: pointer;
  box-shadow: 0 4px 0 #a86a0c; transition: transform 80ms, box-shadow 80ms;
}
.btn:hover { transform: translateY(1px); box-shadow: 0 3px 0 #a86a0c; }
.btn:active { transform: translateY(4px); box-shadow: 0 0 0 #a86a0c; }
.btn:focus-visible, input:focus-visible { outline: 3px solid #fff; outline-offset: 2px; }
.btn.big { width: 100%; font-size: 17px; padding: 18px 20px; }
.btn.small { font-size: 11px; padding: 9px 12px; box-shadow: 0 3px 0 #a86a0c; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--panel-line); box-shadow: none; }
.btn.ghost:hover { border-color: var(--lamp); color: var(--lamp); transform: none; }
.btn[disabled] { opacity: 0.55; cursor: default; }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.back { margin-top: 16px; }

/* play */
.play-head { display: flex; justify-content: space-between; margin-bottom: 12px; }
.prompt { font-size: clamp(20px, 3.6vw, 26px); line-height: 1.25; margin: 0 0 16px; font-weight: 800; }
.timer { height: 8px; background: rgba(216, 241, 245, 0.15); }
#timer-fill { height: 100%; width: 100%; background: var(--lamp); transform-origin: left; }
#timer-fill.low { background: var(--bad); }
.timer-read { font-size: 12px; color: var(--ink-dim); text-align: right; margin: 4px 0 8px; }
#answer-form { display: flex; gap: 8px; }
#answer {
  flex: 1; min-width: 0; font: inherit; font-size: 18px; padding: 12px 14px; color: #fff;
  background: rgba(0, 0, 0, 0.45); border: 2px solid var(--panel-line);
}
#answer:focus { border-color: var(--lamp); outline: none; }
.feedback { min-height: 1.5em; margin: 10px 0 0; font-weight: 700; }
.feedback .gain { font-family: var(--mono); font-weight: 500; }
.feedback.bad { color: var(--bad); }
.chips { display: flex; gap: 5px; margin-top: 10px; }
.chip-dot { width: 22px; height: 10px; background: rgba(216, 241, 245, 0.14); }
.t-common { background: var(--t-common) !important; color: var(--t-common); }
.t-uncommon { background: var(--t-uncommon) !important; color: var(--t-uncommon); }
.t-rare { background: var(--t-rare) !important; color: var(--t-rare); }
.t-deep { background: var(--t-deep) !important; color: var(--t-deep); }
.t-abyssal { background: var(--t-abyssal) !important; color: var(--t-abyssal); }
.t-miss { background: var(--t-miss) !important; color: var(--ink-dim); }
.feedback .tier { text-transform: uppercase; font-family: var(--display); letter-spacing: 0.12em; font-size: 12px; background: none !important; }

/* done */
.big-depth { font-size: clamp(44px, 10vw, 68px); color: var(--lamp); line-height: 1.05; margin: 4px 0; }
.zone { margin: 0 0 14px; color: var(--ink-dim); }
.tiles { display: flex; gap: 6px; margin-bottom: 14px; }
.tiles i { width: 30px; height: 30px; display: block; }
.answers { list-style: none; padding: 0; margin: 0 0 6px; font-size: 14px; }
.answers li { display: flex; justify-content: space-between; gap: 10px; padding: 4px 0; border-bottom: 1px solid rgba(31, 74, 102, 0.6); }
.answers li span:last-child { font-family: var(--display); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; background: none !important; }
.answers .prompt-t { color: var(--ink-dim); font-size: 12px; }

table.board { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 8px; }
.board th { text-align: left; font-family: var(--display); font-size: 10px; letter-spacing: 0.2em; color: var(--ink-dim); font-weight: 400; padding: 4px 0; text-transform: uppercase; }
.board td { padding: 6px 0; border-bottom: 1px solid rgba(31, 74, 102, 0.6); font-family: var(--mono); font-size: 13px; }
.board tr.you td { color: var(--lamp); }
.board td:last-child, .board th:last-child { text-align: right; }
.prize-tag { color: var(--lamp); font-size: 12px; }

.perk-box { border: 2px solid var(--lamp); background: rgba(255, 180, 58, 0.07); padding: 12px 14px; margin: 0 0 14px; }
.perk-box.on { border-color: var(--panel-line); background: rgba(111, 214, 161, 0.07); }
.perk-box .title { font-size: 12px; letter-spacing: 0.22em; color: var(--lamp); margin-bottom: 8px; }
.perk-box.on .title { color: var(--t-uncommon); }
.perk-list { list-style: none; margin: 0; padding: 0; font-size: 14px; }
.perk-list li { display: grid; grid-template-columns: 56px 1fr auto; gap: 10px; align-items: baseline; padding: 3px 0; border-bottom: 1px solid rgba(31, 74, 102, 0.5); }
.perk-list .k { font-size: 9px; letter-spacing: 0.18em; color: var(--ink-dim); }
.perk-list .v { font-weight: 800; }
.perk-list .was { font-size: 12px; color: var(--ink-dim); }
.perk-box .status { margin: 8px 0 0; font-size: 13px; color: var(--ink); }
.btn.buy { display: inline-block; margin-top: 10px; text-decoration: none; }
.perk-nudge { border: 1px dashed var(--lamp); padding: 10px 12px; margin-top: 12px; font-size: 14px; }
.perk-nudge p { margin: 0; }
.token-link { text-decoration: none; color: var(--lamp); }
.modal { position: fixed; inset: 0; z-index: 30; display: flex; align-items: center; justify-content: center; padding: 16px; background: rgba(2, 8, 16, 0.72); }
.modal[hidden] { display: none; }
.modal-card { width: min(460px, 100%); background: #04101e; border: 2px solid var(--lamp); padding: 22px; box-shadow: 0 0 0 5px rgba(2, 8, 16, 0.6), 8px 8px 0 rgba(0, 0, 0, 0.4); }
.modal-card h2 { margin: 0 0 12px; font-size: 16px; letter-spacing: 0.14em; color: var(--lamp); }
.modal-card p { margin: 0 0 6px; }
.modal-card .btn { text-decoration: none; display: inline-block; }
.badge { margin-left: 8px; padding: 1px 7px; font: 400 10px 'Silkscreen', monospace; letter-spacing: 0.12em; text-transform: uppercase; color: var(--lamp-ink); background: var(--lamp); }
.perk { color: var(--lamp); }
.colors { display: flex; align-items: center; gap: 12px; margin-top: 12px; }
.colors .lab { font-size: 10px; letter-spacing: 0.2em; color: var(--ink-dim); }
#swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.swatch { width: 26px; height: 26px; border: 2px solid rgba(2, 8, 16, 0.7); cursor: pointer; padding: 0; }
.swatch.on { outline: 3px solid #fff; outline-offset: 1px; }
.swatch:focus-visible { outline: 3px solid #fff; outline-offset: 2px; }
.arch-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(86px, 1fr)); gap: 8px; max-height: 40vh; overflow-y: auto; }
.arch-list button { font-family: var(--mono); font-size: 13px; padding: 10px 6px; background: rgba(0, 0, 0, 0.35); border: 1px solid var(--panel-line); color: var(--ink); cursor: pointer; }
.arch-list button:hover { border-color: var(--lamp); color: var(--lamp); }
.how { padding-left: 20px; margin: 0; } .how li { margin: 0 0 9px; }

#toast {
  position: fixed; left: 50%; top: 64px; transform: translate(-50%, -20px); z-index: 9; opacity: 0; pointer-events: none;
  background: var(--lamp); color: var(--lamp-ink); font-weight: 800; padding: 9px 14px; transition: opacity 200ms, transform 200ms;
}
#toast.on { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 640px) {
  #stage { padding: 8px; padding-right: 64px; padding-bottom: max(12px, env(safe-area-inset-bottom)); }
  #gauge { width: 56px; right: 6px; }
  .panel { padding: 16px 14px; max-height: calc(100vh - 80px); }
  .logo { font-size: 17px; }
  #dive-no { display: none; }
  .btn.big { font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  .btn, #toast { transition: none; }
}