:root{
  color-scheme: dark;
  --navy:#0A3A5C; --navy-deep:#062A45; --navy-soft:#12507A;
  --cyan:#16B8C4; --cyan-deep:#0E96A0; --cyan-soft:#5FD3DB; --on-cyan:#06333A;
  --foam:#E6F4F6; --bg:#F5F8FA; --bg-alt:#EDF3F5; --surface:#FFFFFF;
  --text:#16242E; --text-2:#566670; --muted:#8B98A0;
  --line:#E1E8EB; --line-strong:#C9D3D8;
  --green:#1D9E75; --amber:#E5A32B; --red:#E24B4A;
  --radius-card:12px; --radius-btn:8px; --radius-badge:6px;
  --shadow:0 1px 4px rgba(0,0,0,.06);
  --font:'Pretendard','Apple SD Gothic Neo','Noto Sans KR',system-ui,sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%}
body{margin:0;background:var(--navy-deep);color:var(--foam);font-family:var(--font);font-size:15px;line-height:1.45;-webkit-font-smoothing:antialiased}
button{font-family:inherit;font-size:inherit;cursor:pointer}
button:disabled{cursor:not-allowed}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.muted{color:var(--muted)}
.wrap{max-width:1240px;margin:0 auto;padding-inline:16px}

/* ── HUD ───────────────────────────────── */
.hud{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:var(--navy-deep);border-bottom:1px solid rgba(230,244,246,.12)}
.hud-in{display:flex;align-items:center;gap:20px;padding-block:10px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;letter-spacing:-.02em;color:#fff}
.brand svg{width:34px;height:22px}
.brand small{font-weight:500;color:var(--cyan-soft);font-size:12px;letter-spacing:0}
.hud-stats{display:flex;gap:18px;flex-wrap:wrap;align-items:baseline;margin-left:auto}
.stat{display:flex;flex-direction:column;gap:0}
.stat b{font-size:17px;color:#fff;font-weight:700}
.stat span{font-size:12px;color:var(--cyan-soft);letter-spacing:.02em}
.stat.clock b{font-size:22px;color:var(--cyan)}
.stat.neg b{color:#FF8A89}
.meter{display:inline-block;width:56px;height:6px;border-radius:3px;background:rgba(230,244,246,.18);vertical-align:middle;margin-left:6px;overflow:hidden}
.meter i{display:block;height:100%;background:var(--cyan)}

/* ── Buttons ───────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:0 16px;border-radius:var(--radius-btn);border:1px solid var(--navy);background:var(--navy);color:#fff;font-weight:600;white-space:nowrap}
.btn:hover:not(:disabled){background:var(--navy-deep)}
.btn:disabled{opacity:.45}
.btn.lg{min-height:52px;font-size:17px;padding:0 22px}
.btn.ghost{background:var(--surface);color:var(--navy);border-color:var(--navy)}
.btn.ghost:hover:not(:disabled){background:var(--foam)}
.btn.cta{background:var(--cyan);border-color:var(--cyan);color:var(--on-cyan)}
.btn.cta:hover:not(:disabled){background:var(--cyan-soft)}
.btn.dark{background:transparent;border-color:rgba(230,244,246,.35);color:var(--foam)}
.btn.dark:hover:not(:disabled){background:rgba(230,244,246,.08)}
.btn.dark[aria-pressed="true"],.btn.dark[aria-pressed="true"]:hover:not(:disabled){background:var(--cyan);color:var(--on-cyan);border-color:var(--cyan)}
.btn.sm{min-height:34px;padding:0 10px;font-size:13px}
.seg{display:inline-flex;gap:4px}

/* ── Panels (paper slips on the night harbor) ── */
.panel{background:var(--surface);color:var(--text);border-radius:var(--radius-card);box-shadow:var(--shadow)}
.panel-h{display:flex;align-items:baseline;justify-content:space-between;gap:8px;padding:14px 16px 8px}
.panel-h h2{margin:0;font-size:17px;font-weight:700;letter-spacing:-.01em}
.panel-h p{margin:0;font-size:13px;color:var(--text-2)}
.panel-b{padding:4px 16px 16px}
.chip{display:inline-flex;align-items:center;gap:4px;height:22px;padding:0 7px;border-radius:var(--radius-badge);font-size:12px;font-weight:600;background:var(--bg-alt);color:var(--text-2);white-space:nowrap}
.chip.navy{background:var(--navy);color:#fff}
.chip.cyan{background:var(--cyan);color:var(--on-cyan)}
.chip.green{background:var(--green);color:#fff}
.chip.amber{background:var(--amber);color:#3A2600}
.chip.red{background:var(--red);color:#fff}
.chip.line{background:transparent;border:1px solid var(--line-strong)}
.fresh{display:inline-flex;align-items:center;gap:6px;font-size:13px}
.fresh .bar{width:48px;height:6px;border-radius:3px;background:var(--bg-alt);overflow:hidden}
.fresh .bar i{display:block;height:100%}
.f-hi i{background:var(--green)} .f-mid i{background:var(--amber)} .f-lo i{background:var(--red)}
.pos{color:var(--green)} .negc{color:var(--red)}

/* ── Title ─────────────────────────────── */
.title{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:32px;align-items:center;padding-block:40px 48px}
.title h1{margin:10px 0 12px;font-size:clamp(34px,6vw,58px);line-height:1.05;letter-spacing:-.04em;color:#fff;font-weight:700;text-wrap:balance}
.title h1 em{font-style:normal;color:var(--cyan)}
.title .lede{font-size:17px;color:var(--foam);max-width:34em;margin:0 0 22px}
.eyebrow{font-size:13px;letter-spacing:.08em;color:var(--cyan-soft);font-weight:600}
.steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;counter-reset:s}
.steps li{display:grid;grid-template-columns:64px 1fr;gap:12px;padding:12px 0;border-top:1px solid rgba(230,244,246,.14)}
.steps li:last-child{border-bottom:1px solid rgba(230,244,246,.14)}
.steps .t{font-size:13px;color:var(--cyan);font-weight:700}
.steps .t small{display:block;color:var(--muted);font-weight:500}
.steps b{color:#fff;font-size:16px}
.steps p{margin:2px 0 0;color:var(--foam);opacity:.82;font-size:14px}
.record{margin-top:16px;font-size:13px;color:var(--cyan-soft)}

/* ── Stage layouts ─────────────────────── */
.stage{padding-block:16px 40px}
.phase-h{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.phase-h h1{margin:0;font-size:22px;color:#fff;letter-spacing:-.02em}
.phase-h p{margin:2px 0 0;color:var(--cyan-soft);font-size:14px}
.tip{display:flex;gap:10px;align-items:flex-start;background:rgba(22,184,196,.12);border:1px solid rgba(22,184,196,.4);color:var(--foam);border-radius:var(--radius-card);padding:10px 12px;margin-bottom:12px;font-size:14px}
.tip b{color:var(--cyan)}
.tip button{margin-left:auto}
.grid-harbor{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(0,1fr);gap:16px;align-items:start}
.grid-2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;align-items:start}
@media (max-width:900px){
  .grid-harbor,.grid-2,.title{grid-template-columns:minmax(0,1fr)}
  .hud-stats{margin-left:0;gap:14px}
}
@media (max-width:600px){
  .hud-in{gap:6px}
  .hud-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2px 10px;width:100%}
  .hud-stats .stat.opt{display:none}
  .stat b{font-size:15px}
  .stat.clock b{font-size:18px}
}