:root{
  --bg:#f5f4f0; --surface:#fbfbf9; --panel:#ffffff; --panel-soft:#f7f6f2;
  --ink:#1c1c1a; --ink-hover:#3a3935; --ink-2:#55534d; --sub:#7a776f; --muted:#8a877f;
  --line:#e3e1db; --line-2:#dcdad3; --line-3:#efeee9; --hover:#efeee9; --soft:#f3f2ee; --track:#ebe9e3;
  --accent:#1c1c1a;
  --font:"IBM Plex Sans KR",sans-serif; --mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit}
.mono-label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.app{min-height:calc(100vh - 48px);display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 28px;border-bottom:1px solid var(--line);background:var(--surface);flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:14px;min-width:0;flex-wrap:wrap}
.home{font-size:13px;color:var(--ink-2);text-decoration:none}
.home:hover{color:var(--ink)}
.brand-title{font-size:17px;font-weight:700;letter-spacing:-.01em}
.btn{height:36px;padding:0 14px;background:transparent;border:1px solid var(--line-2);border-radius:999px;font-size:13px;cursor:pointer}
.btn:hover{background:var(--hover)}
.btn:disabled{opacity:.4;cursor:default}
.btn:disabled:hover{background:transparent}
.btn--solid{background:var(--ink);color:#fff;border:none;font-weight:500}
.btn--solid:hover{background:var(--ink-hover)}
.text-input{height:40px;padding:0 12px;background:var(--surface);border:1px solid var(--line-2);border-radius:8px;font:inherit;font-size:14px;color:var(--ink)}
@media (max-width:640px){ .topbar{padding:14px 16px} }

/* ---------- 게임 공통 셸 ---------- */
.actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.btn--accent{background:var(--accent);color:#fff;border:none;font-weight:500}
.btn--accent:hover{background:var(--accent);filter:brightness(1.08)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.game{flex:1;display:flex;flex-wrap:wrap;align-items:stretch;min-height:0}
.stage{flex:999 1 420px;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;padding:40px 28px}
.side{flex:1 1 300px;min-width:0;max-width:100%;border-left:1px solid var(--line);background:var(--panel);padding:28px 24px 40px;display:flex;flex-direction:column;gap:28px}
.group{display:flex;flex-direction:column;gap:12px}
.group + .group{border-top:1px solid var(--line-3);padding-top:24px}
.rules{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--ink-2);line-height:1.6;counter-reset:rule}
.rules li{display:flex;gap:10px}
.rules li::before{counter-increment:rule;content:counter(rule,decimal-leading-zero);font-family:var(--mono);font-size:11px;color:var(--accent);padding-top:3px;flex-shrink:0}
.keys{display:flex;flex-direction:column;gap:8px;font-size:12px;color:var(--ink-2)}
.keys div{display:flex;justify-content:space-between;align-items:center;gap:12px}
.kbd{display:inline-block;font-family:var(--mono);font-size:11px;line-height:1.4;padding:1px 6px;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:5px;background:var(--surface);color:var(--ink)}
.best-card{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:16px;border-radius:12px;background:var(--panel-soft)}
.best-val{font-family:var(--mono);font-size:28px;font-weight:500;letter-spacing:-.02em}
.seg{display:flex;background:var(--soft);border-radius:999px;padding:3px;gap:2px}
.seg-btn{flex:1;height:30px;padding:0 10px;background:transparent;color:var(--sub);border:none;border-radius:999px;font-size:12px;cursor:pointer;white-space:nowrap}
.seg-btn.is-active{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.link-btn{padding:0;background:none;border:none;font-size:12px;color:var(--muted);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
@media (max-width:640px){
  .stage{padding:24px 16px}
  .side{border-left:none;border-top:1px solid var(--line);padding:24px 16px 40px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}

/* ---------- 색 맞추기 ---------- */
:root{--accent:#ff2d87;--rainbow:linear-gradient(90deg,#ff2d55,#ff9500,#ffd60a,#34c759,#0a84ff,#5e5ce6,#ff2d87)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.stage{justify-content:flex-start}
.topline{width:100%;max-width:640px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.rounds{display:flex;gap:6px}
.pip{display:flex;align-items:center;justify-content:center;min-width:44px;height:30px;padding:0 8px;border-radius:999px;border:1px solid var(--line-2);font-family:var(--mono);font-size:11px;color:var(--muted);background:var(--panel)}
.pip.is-now{border-color:var(--ink);color:var(--ink);font-weight:700}
.pip.is-done{border:none;color:#fff;background:var(--pip,#1c1c1a);font-weight:700;text-shadow:0 1px 2px rgba(0,0,0,.35)}
.mode-seg{min-width:180px}
.mode-seg .is-active{color:var(--ink);font-weight:700}

.duo{position:relative;width:100%;max-width:640px;display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:24px;overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.06),0 30px 60px -30px rgba(40,36,28,.45)}
.sw{position:relative;margin:0;height:clamp(180px,34vh,300px);display:flex;align-items:flex-end;background:var(--c,#ccc);transition:background-color .08s linear}
.sw figcaption{display:flex;flex-direction:column;gap:2px;padding:16px 18px;color:var(--fg,#fff)}
.sw figcaption .mono-label{color:inherit;opacity:.75}
.sw-code{font-family:var(--mono);font-size:15px;font-weight:700;letter-spacing:.02em}
.sw--mine figcaption{margin-left:auto;text-align:right}
.sw-cover{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:repeating-linear-gradient(-45deg,#ecebe6 0 12px,#e3e1db 12px 24px);color:var(--ink-2);font-size:14px;font-weight:500;z-index:1}
.sw-cover.is-peek{background:transparent;color:var(--fg,#fff);justify-content:flex-start;padding-top:18px}
.cover-bar{display:block;width:60%;height:4px;border-radius:999px;background:currentColor;transform-origin:left;opacity:.8}
.sw-cover.is-peek .cover-bar{animation:drain 3s linear forwards}
.verdict{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:2px;width:128px;height:128px;justify-content:center;border-radius:999px;background:var(--panel);box-shadow:0 12px 30px rgba(0,0,0,.25);animation:stamp .45s cubic-bezier(.2,1.4,.4,1);z-index:2}
.verdict-score{font-family:var(--mono);font-size:44px;font-weight:800;line-height:1;letter-spacing:-.04em;color:var(--ink)}
.verdict-de{font-family:var(--mono);font-size:11px;color:var(--sub)}

.controls{width:100%;max-width:640px;display:flex;flex-direction:column;gap:14px;padding:20px;background:var(--panel);border:1px solid var(--line);border-radius:20px}
.app[data-phase="reveal"] .controls,.app[data-phase="peek"] .controls{opacity:.55;pointer-events:none}
.slider-row{display:grid;grid-template-columns:70px 1fr 56px;align-items:center;gap:12px}
.slider-row label{font-size:13px;color:var(--ink-2);white-space:nowrap}
.slider-row label b{font-family:var(--mono);color:var(--ink);margin-right:4px}
.val{font-family:var(--mono);font-size:13px;text-align:right;font-variant-numeric:tabular-nums}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:28px;margin:0;background:transparent;cursor:pointer;touch-action:pan-y}
input[type=range]::-webkit-slider-runnable-track{height:14px;border-radius:999px;background:var(--trk);box-shadow:inset 0 0 0 1px rgba(0,0,0,.08)}
input[type=range]::-moz-range-track{height:14px;border-radius:999px;background:var(--trk);box-shadow:inset 0 0 0 1px rgba(0,0,0,.08)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:26px;height:26px;margin-top:-6px;border-radius:999px;background:var(--thumb,#fff);border:3px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.25),0 2px 6px rgba(0,0,0,.25)}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:999px;background:var(--thumb,#fff);border:3px solid #fff;box-shadow:0 0 0 1px rgba(0,0,0,.25),0 2px 6px rgba(0,0,0,.25)}
input[type=range]:focus-visible{outline:none}
input[type=range]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 3px var(--accent),0 2px 6px rgba(0,0,0,.25)}
.control-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:6px;border-top:1px solid var(--line-3)}
.hex-field{position:relative;display:flex;align-items:center;gap:10px}
.hex-field label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.hex-hash{position:absolute;left:52px;font-family:var(--mono);color:var(--muted);pointer-events:none}
.hex-field .text-input{width:120px;padding-left:24px;font-family:var(--mono);text-transform:uppercase}
.hex-field .text-input.is-bad{border-color:var(--accent)}
.submit{height:44px;padding:0 22px;font-size:14px;display:inline-flex;align-items:center;gap:10px}
.kbd--inv{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.35);color:#fff}

.feedback{width:100%;max-width:640px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:18px 20px;border-radius:20px;background:var(--ink);color:#fff;animation:rise .35s ease-out}
.fb-main{display:flex;flex-direction:column;gap:6px;min-width:0}
.fb-main strong{font-size:16px}
.fb-hints{margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.fb-hints li{font-size:12px;padding:3px 10px;border-radius:999px;background:rgba(255,255,255,.12);color:#e9e7e1}
.next{height:42px;padding:0 20px;background:#fff;color:var(--ink)}
.next:hover{background:#efeee9}

.de-scale{display:flex;flex-direction:column;gap:8px;font-size:12px;color:var(--ink-2)}
.de-scale div{display:flex;align-items:center;gap:10px}
.de-scale .kbd{min-width:44px;text-align:center}
.best-card{align-items:center}
.best-label{font-size:13px;color:var(--ink-2)}

.summary{position:fixed;inset:0;z-index:20;display:flex;align-items:center;justify-content:center;padding:16px;background:rgba(28,28,26,.5);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);animation:fadeIn .25s ease-out}
.summary-card{position:relative;width:100%;max-width:420px;max-height:calc(100vh - 32px);overflow:auto;display:flex;flex-direction:column;align-items:center;gap:8px;padding:30px 24px 24px;border-radius:24px;background:var(--panel);box-shadow:0 30px 80px rgba(0,0,0,.35);animation:rise .4s cubic-bezier(.2,1.2,.4,1)}
.summary-card::before{content:"";position:absolute;left:0;right:0;top:0;height:6px;border-radius:24px 24px 0 0;background:var(--rainbow)}
.sum-title{margin:0;font-size:18px}
.sum-total{font-family:var(--mono);font-size:64px;font-weight:800;line-height:1;letter-spacing:-.05em}
.sum-total small{font-size:16px;font-weight:500;color:var(--muted);margin-left:6px;letter-spacing:0}
.sum-badge{padding:4px 12px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:700}
.sum-sub{margin:0;font-size:13px;color:var(--sub);text-align:center}
.sum-list{width:100%;margin:8px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px}
.sum-list li{display:grid;grid-template-columns:24px 1fr auto;align-items:center;gap:10px;font-size:12px;color:var(--ink-2)}
.sum-list .rn{font-family:var(--mono);color:var(--muted)}
.sum-pair{display:flex;height:26px;border-radius:7px;overflow:hidden;box-shadow:inset 0 0 0 1px rgba(0,0,0,.06)}
.sum-pair i{flex:1}
.sum-list b{font-family:var(--mono);font-size:14px;color:var(--ink);min-width:3ch;text-align:right}
.sum-btn{margin-top:12px;height:44px;padding:0 26px;font-size:14px}

@keyframes stamp{0%{transform:translate(-50%,-50%) scale(.3);opacity:0}100%{transform:translate(-50%,-50%) scale(1);opacity:1}}
@keyframes drain{from{transform:scaleX(1)}to{transform:scaleX(0)}}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@media (max-width:640px){
  .sw{height:clamp(150px,28vh,220px)}
  .sw figcaption{padding:12px}
  .sw-code{font-size:13px}
  .verdict{width:104px;height:104px}
  .verdict-score{font-size:36px}
  .controls{padding:16px}
  .slider-row{grid-template-columns:56px 1fr 44px;gap:8px}
  .slider-row label{font-size:12px}
  .pip{min-width:38px}
  .mode-seg{flex:1}
  .control-foot{flex-direction:column;align-items:stretch}
  .submit{justify-content:center}
}
@media (hover:none){ .submit .kbd{display:none} }

/* 다크 모드 (인쇄는 라이트 그대로) — 색 견본(목표/내 색)은 그대로 */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#141318; --surface:#1a1920; --panel:#1f1e26; --panel-soft:#24232c;
    --ink:#ecebf0; --ink-hover:#ffffff; --ink-2:#c9c7d1; --sub:#a09eab; --muted:#8a8895;
    --line:#2e2d36; --line-2:#393843; --line-3:#26252d; --hover:#2a2932; --soft:#26252d; --track:#34333d;
    --accent-soft:rgba(255,45,135,.16);
  }
  :root[data-theme="dark"] .btn--solid{color:var(--bg)}
  :root[data-theme="dark"] .seg-btn.is-active{background:var(--track);box-shadow:0 1px 3px rgba(0,0,0,.4)}
  :root[data-theme="dark"] .duo{box-shadow:0 0 0 1px var(--line),0 30px 60px -30px rgba(0,0,0,.7)}
  :root[data-theme="dark"] .sw-cover{background:repeating-linear-gradient(-45deg,#26252d 0 12px,#1f1e26 12px 24px)}
  :root[data-theme="dark"] .sw-cover.is-peek{background:transparent}
  :root[data-theme="dark"] .verdict{box-shadow:0 12px 30px rgba(0,0,0,.5)}
  :root[data-theme="dark"] .feedback{background:var(--panel-soft);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line-2)}
  :root[data-theme="dark"] .fb-hints li{background:var(--track);color:var(--ink-2)}
  :root[data-theme="dark"] .next{background:var(--ink);color:var(--bg);border-color:transparent}
  :root[data-theme="dark"] .next:hover{background:var(--ink-hover)}
  :root[data-theme="dark"] .summary{background:rgba(10,10,12,.6)}
  :root[data-theme="dark"] .summary-card{box-shadow:0 30px 80px rgba(0,0,0,.6);border:1px solid var(--line)}
  :root[data-theme="dark"] .sum-pair{box-shadow:inset 0 0 0 1px rgba(255,255,255,.08)}
}