:root {
  --ink: #e8f4ff;
  --muted: #8fb0cc;
  --panel: rgba(6, 18, 38, 0.82);
  --edge: rgba(120, 200, 255, 0.22);
  --cyan: #5fe3ff;
  --pink: #ff5c8a;
  --gem: #ffd85c;
  --deep: #b98bff;
  --rare: #4ef0b0;
  --school: #5fc8ff;
  --clever: #ffa45c;
  --plankton: #a9b8c8;
  --none: #ff5c6c;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: #020509; }
body { margin: 0; color: var(--ink); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: #020509; }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: var(--cyan); }

/* ---------- stage ---------- */
.stage { position: relative; height: 100svh; min-height: 560px; overflow: hidden; background: #2b84bd; }
body.playing { overflow: hidden; }
body.playing .stage { position: fixed; inset: 0; height: auto; min-height: 0; z-index: 5; }
body.playing .content, body.playing .foot { display: none; }

.scene { position: absolute; left: 0; right: 0; top: 0; height: 4200px; will-change: transform; transition: transform 1.6s cubic-bezier(0.45, 0, 0.2, 1); }
.scene .water { position: absolute; left: 0; right: 0; top: 0; height: 100%;
  background: linear-gradient(180deg, #7cc3e6 0, #bfe3f2 13%, #3d93c6 13.1%, #2a77ab 16%, #1a5687 19%, #10365f 30%, #0a2444 45%, #071830 70%, #040d1c 88%, #020509 100%); }
.scene .rays { position: absolute; left: -10%; right: -10%; top: 13%; height: 12%; background: repeating-linear-gradient(100deg, rgba(255,255,255,0.07) 0 30px, transparent 30px 90px); mask-image: linear-gradient(180deg, #000, transparent); -webkit-mask-image: linear-gradient(180deg, #000, transparent); }
.scene .boat { position: absolute; left: 30%; width: 90px; height: 50px; }
.scene .cloud { position: absolute; height: 22px; border-radius: 22px; background: rgba(255, 255, 255, 0.85); }
.scene .kelp { position: absolute; bottom: auto; width: 46px; opacity: 0.55; transform-origin: bottom center; animation: sway 6s ease-in-out infinite; }
.scene .fish { position: absolute; animation: swim linear infinite; }
.scene .mark { position: absolute; font: 11px/1.3 var(--mono); letter-spacing: 0.08em; color: rgba(200, 230, 255, 0.55); white-space: nowrap; }
.scene .mark.l { left: 14px; }
.scene .mark.r { right: 64px; text-align: right; }
.scene .mark.zone { color: rgba(230, 245, 255, 0.85); font-weight: 700; }
.scene .mark { transition: opacity 0.6s; }
body:not(.playing) .scene .mark { opacity: 0; }
.scene .floor { position: absolute; left: 0; right: 0; height: 120px; background: radial-gradient(60% 100% at 50% 100%, #1a1530 0, transparent 70%); }

@keyframes sway { 0%, 100% { transform: rotate(-3deg); } 50% { transform: rotate(3deg); } }
@keyframes swim { from { transform: translateX(-120px); } to { transform: translateX(calc(100vw + 120px)); } }

.snow { position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
  background-image: radial-gradient(1.5px 1.5px at 20% 30%, #fff 50%, transparent 51%), radial-gradient(1px 1px at 70% 60%, #fff 50%, transparent 51%), radial-gradient(1px 1px at 40% 80%, #fff 50%, transparent 51%), radial-gradient(1.5px 1.5px at 85% 20%, #fff 50%, transparent 51%), radial-gradient(1px 1px at 10% 70%, #fff 50%, transparent 51%);
  background-size: 260px 300px; animation: snow 18s linear infinite; }
@keyframes snow { from { background-position: 0 0; } to { background-position: 0 300px; } }

.ruler { position: absolute; top: 0; bottom: 0; right: 0; width: 56px; pointer-events: none; }
.ruler-track { position: absolute; right: 8px; top: 0; height: 4200px; width: 48px; border-right: 2px solid rgba(180, 220, 255, 0.35); transition: transform 1.6s cubic-bezier(0.45, 0, 0.2, 1); will-change: transform; }
.ruler-track i { position: absolute; right: 0; width: 6px; border-top: 1px solid rgba(180, 220, 255, 0.4); }
.ruler-track i.big { width: 12px; }
.ruler-track span { position: absolute; right: 16px; font: 10px var(--mono); color: rgba(200, 230, 255, 0.6); transform: translateY(-50%); }
.you { position: absolute; right: 8px; top: 42%; font: 700 10px var(--mono); color: var(--pink); transform: translateY(-50%); }
.you::after { content: ""; display: inline-block; width: 22px; height: 2px; background: var(--pink); vertical-align: middle; margin-left: 4px; }

.diver { position: absolute; left: 12%; top: 42%; width: 64px; height: 40px; transform: translateY(-50%); animation: bob 3s ease-in-out infinite; filter: drop-shadow(0 0 10px rgba(255, 216, 92, 0.45)); }
@keyframes bob { 0%, 100% { margin-top: -4px; } 50% { margin-top: 4px; } }
.diver.sinking { animation: bob 0.8s ease-in-out infinite; }

/* ---------- hud ---------- */
.hud { position: absolute; top: 10px; left: 10px; right: 10px; display: flex; justify-content: space-between; align-items: flex-start; z-index: 3; pointer-events: none; }
.panel { background: var(--panel); border: 1px solid var(--edge); border-radius: 8px; padding: 6px 12px; min-width: 96px; font-family: var(--mono); }
.panel small, .dots-wrap small { display: block; font-size: 9px; letter-spacing: 0.25em; color: var(--muted); }
.panel b { font-size: 20px; color: var(--cyan); }
.panel b.pink { color: var(--pink); }
.panel.right { text-align: right; }
.dots-wrap { text-align: center; padding-top: 6px; }
.dots { display: flex; gap: 4px; justify-content: center; }
.dots i { width: 16px; height: 16px; border-radius: 3px; background: rgba(6, 18, 38, 0.8); border: 1px solid var(--edge); }
.dots i.now { background: transparent; border: 2px solid #fff; box-shadow: 0 0 8px rgba(255, 255, 255, 0.6); }
.dots i.t-gem { background: var(--gem); } .dots i.t-deep { background: var(--deep); } .dots i.t-rare { background: var(--rare); }
.dots i.t-school { background: var(--school); } .dots i.t-clever { background: var(--clever); } .dots i.t-plankton { background: var(--plankton); } .dots i.t-none { background: var(--none); }
.dots-wrap small { margin-top: 4px; }

.menu-btn { position: absolute; top: 72px; left: 10px; z-index: 6; width: 40px; height: 36px; border-radius: 8px; background: var(--panel); border: 1px solid var(--edge); display: grid; place-content: center; gap: 4px; }
.menu-btn span { display: block; width: 18px; height: 2px; background: var(--ink); }
.menu { position: absolute; top: 114px; left: 10px; z-index: 6; display: grid; gap: 2px; background: var(--panel); border: 1px solid var(--edge); border-radius: 10px; padding: 6px; min-width: 180px; backdrop-filter: blur(6px); }
.menu[hidden] { display: none; }
.menu button, .menu a { text-align: left; background: none; border: 0; padding: 10px 12px; border-radius: 6px; color: var(--ink); text-decoration: none; font: 600 14px var(--mono); letter-spacing: 0.05em; }
.menu button:hover, .menu a:hover { background: rgba(255, 255, 255, 0.08); }

/* ---------- screens ---------- */
.app { position: absolute; inset: 0; z-index: 2; display: flex; flex-direction: column; pointer-events: none; }
.app > * { pointer-events: auto; }

.home { margin: auto; text-align: center; padding: 120px 20px 40px; max-width: 560px; }
.title { margin: 0; font: 900 clamp(38px, 11vw, 64px)/1 var(--mono); letter-spacing: 0.04em; color: #fff; text-shadow: 0 3px 0 #0d3a63, 0 0 30px rgba(95, 227, 255, 0.35); }
.sub { margin: 10px 0 0; font: 700 14px var(--mono); letter-spacing: 0.45em; color: #d9f3ff; }
.tag { margin: 14px 0 26px; font: 13px var(--mono); color: #cfe8f7; letter-spacing: 0.05em; }
.go { display: inline-block; font: 800 18px var(--mono); letter-spacing: 0.12em; padding: 16px 28px; border-radius: 10px; border: 2px solid var(--cyan); color: #04121f; background: linear-gradient(180deg, #8ff0ff, #3fcbe8); box-shadow: 0 0 24px rgba(95, 227, 255, 0.45), 0 4px 0 #1b6f88; }
.go:active { transform: translateY(2px); box-shadow: 0 0 24px rgba(95, 227, 255, 0.45), 0 2px 0 #1b6f88; }
.go.ghosty { background: var(--panel); color: var(--ink); border-color: var(--edge); box-shadow: none; font-size: 14px; padding: 12px 18px; }
.row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-top: 14px; }
.small { font: 12px var(--mono); color: #cfe8f7; letter-spacing: 0.1em; margin-top: 16px; }
.stats { display: flex; gap: 6px; justify-content: center; margin-top: 18px; flex-wrap: wrap; }
.stats div { background: var(--panel); border: 1px solid var(--edge); border-radius: 8px; padding: 6px 12px; min-width: 72px; font-family: var(--mono); }
.stats b { display: block; font-size: 18px; color: var(--cyan); }
.stats span { font-size: 9px; letter-spacing: 0.2em; color: var(--muted); }

.prompt-card { margin: 128px 64px 0 12px; background: var(--panel); border: 1px solid var(--edge); border-radius: 10px; padding: 16px 18px; backdrop-filter: blur(3px); max-width: 640px; }
.prompt-card small { font: 700 11px var(--mono); letter-spacing: 0.3em; color: var(--pink); }
.prompt-card h2 { margin: 8px 0 8px; font: 800 clamp(21px, 5.2vw, 30px)/1.25 var(--mono); letter-spacing: -0.01em; }
.prompt-card p { margin: 0; font: 11px var(--mono); letter-spacing: 0.15em; color: var(--muted); }

.bar { margin-top: auto; display: flex; align-items: center; gap: 10px; padding: 10px 10px calc(10px + env(safe-area-inset-bottom)); background: linear-gradient(180deg, transparent, rgba(2, 6, 14, 0.9) 40%); }
.clock { position: relative; width: 58px; height: 58px; flex: none; }
.clock svg { width: 58px; height: 58px; transform: rotate(-90deg); }
.clock circle { fill: rgba(4, 14, 30, 0.9); stroke: rgba(120, 200, 255, 0.2); stroke-width: 4; }
.clock circle.left { fill: none; stroke: var(--cyan); stroke-linecap: round; transition: stroke-dashoffset 0.1s linear; }
.clock b { position: absolute; inset: 0; display: grid; place-items: center; font: 800 18px var(--mono); color: var(--cyan); }
.clock.hurry circle.left, .clock.hurry b { stroke: var(--pink); color: var(--pink); }
.bar form { flex: 1; display: flex; gap: 8px; min-width: 0; }
.bar input { flex: 1; min-width: 0; font: 600 18px var(--mono); padding: 14px 14px; border-radius: 8px; background: rgba(4, 14, 30, 0.92); color: var(--ink); border: 1px solid var(--edge); outline: none; }
.bar input:focus { border-color: var(--cyan); }
.bar .dive { font: 800 16px var(--mono); letter-spacing: 0.2em; padding: 0 18px; border-radius: 8px; border: 0; background: var(--pink); color: #fff; box-shadow: 0 3px 0 #9b2049; }
.bar .dive:disabled { opacity: 0.6; }
.err { position: absolute; bottom: 86px; left: 0; right: 0; text-align: center; font: 13px var(--mono); color: var(--none); }

.verdict { margin: auto auto 28px; text-align: center; padding: 26px 24px 28px; max-width: 560px; width: calc(100% - 90px); background: rgba(6, 20, 42, 0.62); border: 1px solid var(--edge); border-radius: 16px; backdrop-filter: blur(4px); }
.verdict .label { font: 900 clamp(32px, 9vw, 52px)/1.05 var(--mono); letter-spacing: 0.06em; text-shadow: 0 0 24px currentColor; }
.verdict .said { font: 700 18px var(--mono); margin-top: 12px; }
.verdict .pts { font: 800 18px var(--mono); margin-top: 10px; }
.verdict .pts em { font-style: normal; color: var(--cyan); }
.verdict .note { font: 13px var(--mono); color: var(--muted); margin-top: 8px; }
.verdict .fact { margin: 14px auto 0; max-width: 460px; background: var(--panel); border: 1px solid rgba(255, 216, 92, 0.5); border-radius: 10px; padding: 10px 14px; font-size: 14px; color: #ffeebd; }
.verdict .go { margin-top: 26px; }

.c-gem { color: var(--gem); } .c-deep { color: var(--deep); } .c-rare { color: var(--rare); } .c-school { color: var(--school); }
.c-clever { color: var(--clever); } .c-plankton { color: var(--plankton); } .c-none { color: var(--none); }

.sheet { position: absolute; inset: 0; overflow-y: auto; z-index: 4; padding: 76px 12px 40px; background: linear-gradient(180deg, rgba(2, 6, 14, 0.2), rgba(2, 6, 14, 0.88) 30%); }
.sheet .inner { max-width: 640px; margin: 0 auto; }
.summary { text-align: center; padding: 30px 0 10px; }
.summary small { font: 700 11px var(--mono); letter-spacing: 0.35em; color: var(--muted); }
.summary .depth { font: 900 clamp(48px, 15vw, 80px)/1 var(--mono); color: #fff; text-shadow: 0 0 30px rgba(95, 227, 255, 0.5); margin: 10px 0 4px; }
.summary .zone { font: 800 15px var(--mono); letter-spacing: 0.25em; color: var(--cyan); }
.summary .score { font: 700 16px var(--mono); margin-top: 8px; }
.summary .squares { font-size: 24px; letter-spacing: 3px; margin: 12px 0 0; }
.summary .beat { font: 13px var(--mono); color: var(--muted); margin-top: 6px; }
.box { background: var(--panel); border: 1px solid var(--edge); border-radius: 10px; margin-top: 10px; }
.box > button { width: 100%; text-align: left; background: none; border: 0; padding: 12px 14px; display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.box .q { font-size: 13px; color: var(--muted); }
.box .a { font: 700 15px var(--mono); overflow-wrap: anywhere; }
.box .chip { flex: none; }
.box .more { padding: 0 14px 14px; font-size: 14px; }
.box .more h4 { margin: 12px 0 4px; font: 700 12px var(--mono); letter-spacing: 0.15em; }
.box .more p { margin: 0; color: #cfe1f0; }
.box .gemfact { color: #ffeebd; }
.check { display: flex; gap: 6px; margin-top: 12px; }
.check input { flex: 1; min-width: 0; font: 15px var(--mono); padding: 9px 10px; border-radius: 6px; background: rgba(2, 8, 20, 0.9); color: var(--ink); border: 1px solid var(--edge); }
.check button { border: 0; border-radius: 6px; padding: 0 12px; background: var(--cyan); color: #04121f; font: 700 13px var(--mono); }
.check-out { font: 13px var(--mono); margin-top: 6px; min-height: 1.2em; }

.chip { display: inline-block; padding: 2px 9px; border-radius: 99px; font: 800 11px var(--mono); letter-spacing: 0.04em; color: #08111f; white-space: nowrap; }
.t-gem { background: var(--gem); } .t-deep { background: var(--deep); } .t-rare { background: var(--rare); } .t-school { background: var(--school); }
.t-clever { background: var(--clever); } .t-plankton { background: var(--plankton); } .t-none { background: var(--none); color: #fff; }

.list { display: grid; gap: 6px; margin-top: 12px; }
.list button { display: flex; justify-content: space-between; background: var(--panel); border: 1px solid var(--edge); border-radius: 8px; padding: 12px 14px; font: 600 14px var(--mono); }
.list .date { color: var(--muted); font-weight: 400; }
.modal-text { max-width: 560px; margin: 0 auto; font-size: 15px; }
.modal-text h2 { font: 800 22px var(--mono); letter-spacing: 0.1em; text-align: center; }
.modal-text li { margin-bottom: 6px; }

.toast { position: fixed; left: 50%; bottom: 100px; transform: translateX(-50%); background: #fff; color: #111; padding: 10px 18px; border-radius: 10px; font: 700 14px var(--mono); z-index: 20; }

/* ---------- seo content ---------- */
.content { max-width: 760px; margin: 0 auto; padding: 30px 18px 10px; color: #c9d9e8; }
.content h2 { color: #fff; font-size: 24px; margin: 34px 0 10px; }
.tiers { width: 100%; border-collapse: collapse; font-size: 14px; }
.tiers th, .tiers td { text-align: left; padding: 9px 6px; border-bottom: 1px solid #16304d; vertical-align: top; }
.tiers th { color: var(--muted); font-weight: 600; }
details { background: #07162a; border: 1px solid #16304d; border-radius: 10px; padding: 12px 16px; margin: 8px 0; }
summary { cursor: pointer; font-weight: 700; color: #fff; }
details p { margin: 10px 0 0; }
.foot { max-width: 760px; margin: 0 auto; padding: 24px 18px 50px; color: var(--muted); font-size: 13px; text-align: center; }
.foot a { color: var(--muted); }
.legal { max-width: 760px; margin: 0 auto; padding: 30px 18px; }
.legal a { color: var(--cyan); }
.page-top { max-width: 760px; margin: 0 auto; padding: 18px 18px 0; }
.page-top a { font: 900 18px var(--mono); letter-spacing: 0.06em; color: #fff; text-decoration: none; }
[data-feedback-form] { margin: 22px 0; }
[data-feedback-form] .fb-row { display: flex; gap: 14px; flex-wrap: wrap; }
[data-feedback-form] .fb-row > div { flex: 1 1 220px; }
[data-feedback-form] .fb-field { margin-bottom: 16px; }
[data-feedback-form] label { display: block; margin: 0 0 6px; font-weight: 600; font-size: 14px; }
[data-feedback-form] .fb-hint { font-weight: 400; color: var(--muted); }
[data-feedback-form] input, [data-feedback-form] textarea { width: 100%; box-sizing: border-box; padding: 11px 13px; font: inherit; font-size: 14px; color: var(--ink); background: rgba(6, 18, 38, 0.8); border: 1px solid var(--edge); border-radius: 8px; outline: 0; }
[data-feedback-form] input:focus, [data-feedback-form] textarea:focus { border-color: var(--cyan); }
[data-feedback-form] textarea { min-height: 150px; resize: vertical; }
[data-feedback-form] button[type="submit"] { width: 100%; padding: 12px 18px; font: 800 15px var(--mono); letter-spacing: 0.08em; color: #04202b; background: var(--cyan); border: 0; border-radius: 8px; cursor: pointer; }
[data-feedback-form] button:disabled { opacity: 0.6; cursor: default; }
[data-feedback-form] [data-feedback-captcha] { margin: 4px 0 16px; }
[data-feedback-form] altcha-widget { --altcha-max-width: 100%; }
[data-feedback-form][data-state="error"] [data-feedback-status] { color: var(--none); }
[data-feedback-form][data-state="sent"] [data-feedback-status] { color: var(--rare); }

@media (max-width: 520px) {
  .panel { min-width: 74px; padding: 5px 9px; }
  .panel b { font-size: 16px; }
  .dots i { width: 12px; height: 12px; }
  .prompt-card { margin: 120px 58px 0 10px; }
  .verdict { width: calc(100% - 70px); margin: auto auto 18px 10px; padding: 18px 14px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .scene, .ruler-track { transition: none; }
  .snow, .diver, .scene .kelp, .scene .fish { animation: none; }
}