: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:#ef5a4c; /* 러브레터 코랄 */
  --accent-ink:#c63a2c; --accent-soft:#fde8e3;
  --paper:#fffaf6; --paper-line:#f3e2da; --cream:#fff1ea; --bubble-in:#ffffff; --bubble-out:#ef5a4c;
  --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:100vh;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}
.brand-title{font-size:17px;font-weight:700;letter-spacing:-.01em;margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
kbd{font-family:var(--mono);font-size:11px;padding:1px 5px;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:5px;background:var(--panel)}
@media (max-width:640px){ .topbar{padding:14px 16px} }

/* ---------- 무대 ---------- */
.stage{flex:1;width:100%;max-width:680px;margin:0 auto;padding:36px 20px 64px;scroll-margin-top:12px;
  background-image:radial-gradient(circle at 1px 1px,rgba(239,90,76,.12) 1px,transparent 1.5px);background-size:22px 22px}
.view{animation:fadeUp .4s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.fine{margin:18px 4px 0;font-size:12.5px;line-height:1.6;color:var(--sub);text-align:center;word-break:keep-all}

/* ---------- 인트로: 봉투 ---------- */
.envelope{position:relative;padding-top:54px}
.env-flap{position:absolute;left:0;right:0;top:0;height:120px;background:var(--accent);clip-path:polygon(0 100%,50% 0,100% 100%);border-radius:20px 20px 0 0;display:grid;place-items:center}
.env-flap span{margin-top:52px;width:46px;height:46px;border-radius:50%;background:#fff;color:var(--accent);display:grid;place-items:center;font-size:22px;box-shadow:0 4px 0 rgba(0,0,0,.08)}
.letter{position:relative;background:var(--paper);border:1px solid var(--paper-line);border-radius:22px;padding:56px 36px 32px;text-align:center;
  box-shadow:0 30px 60px -36px rgba(150,50,30,.45);
  background-image:repeating-linear-gradient(to bottom,transparent 0 33px,var(--paper-line) 33px 34px);background-position:0 18px}
.letter .mono-label{color:var(--accent-ink)}
.intro-title{margin:10px 0 14px;font-size:clamp(26px,6vw,34px);line-height:1.3;letter-spacing:-.02em;word-break:keep-all}
.intro-desc{margin:0 auto;max-width:440px;font-size:15px;line-height:1.75;color:var(--ink-2);word-break:keep-all}
.intro-meta{list-style:none;display:flex;justify-content:center;flex-wrap:wrap;gap:8px;padding:0;margin:22px 0 0}
.intro-meta li{padding:6px 12px;border-radius:999px;background:var(--panel);border:1px solid var(--paper-line);font-size:13px;color:var(--ink-2)}
.intro-meta b{color:var(--accent-ink)}
.intro-types{display:flex;justify-content:center;flex-wrap:wrap;gap:6px;margin:22px 0 4px;font-size:24px}
.intro-types span{width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:var(--panel);border:1px solid var(--paper-line)}
.cta{display:inline-flex;align-items:center;justify-content:center;height:54px;padding:0 34px;margin-top:22px;border:none;border-radius:999px;background:var(--accent);color:#fff;font-size:16px;font-weight:700;cursor:pointer;
  box-shadow:0 10px 24px -10px rgba(239,90,76,.8);transition:transform .15s ease,box-shadow .15s ease}
.cta:hover{transform:translateY(-1px);box-shadow:0 14px 26px -10px rgba(239,90,76,.9)}
.cta:active{transform:translateY(1px)}
.last-btn{display:block;margin:14px auto 0;background:none;border:none;font-size:13px;color:var(--sub);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.last-btn:hover{color:var(--accent-ink)}

/* ---------- 문항: 채팅 ---------- */
.quiz-head{display:flex;justify-content:space-between;align-items:center;gap:12px}
.back{height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line-2);background:var(--panel);font-size:13px;cursor:pointer;color:var(--ink-2)}
.back:hover{background:var(--hover)}
.q-count{font-family:var(--mono);font-size:13px;color:var(--sub)}
.q-count b{color:var(--accent-ink);font-size:16px}
.progress{position:relative;height:8px;margin:14px 0 26px;border-radius:999px;background:var(--accent-soft);overflow:hidden}
.progress-bar{position:absolute;left:0;top:0;bottom:0;width:0;border-radius:inherit;background:linear-gradient(90deg,#ff9b7a,var(--accent));transition:width .35s ease}
.chat{display:flex;flex-direction:column;gap:18px;min-height:380px}
.chat.is-in .bubble--in{animation:pop .35s ease both}
.chat.is-in .opt{animation:slideIn .35s ease both}
.chat.is-in .opt:nth-child(2){animation-delay:.05s}
.chat.is-in .opt:nth-child(3){animation-delay:.1s}
.chat.is-in .opt:nth-child(4){animation-delay:.15s}
@keyframes pop{from{opacity:0;transform:scale(.94) translateY(6px)}to{opacity:1;transform:none}}
@keyframes slideIn{from{opacity:0;transform:translateX(14px)}to{opacity:1;transform:none}}
.bubble-row{display:flex;align-items:flex-end;gap:10px}
.avatar{flex:0 0 auto;width:42px;height:42px;border-radius:50%;background:var(--accent-soft);display:grid;place-items:center;font-size:20px}
.bubble{margin:0;outline:none}
.bubble--in{max-width:88%;padding:16px 20px;border-radius:22px 22px 22px 6px;background:var(--bubble-in);border:1px solid var(--line);font-size:clamp(18px,4.4vw,21px);font-weight:700;line-height:1.45;letter-spacing:-.01em;word-break:keep-all;box-shadow:0 10px 24px -18px rgba(80,30,20,.4)}
.opts{display:flex;flex-direction:column;align-items:flex-end;gap:10px;padding-left:24px}
.opt{display:flex;align-items:center;gap:10px;max-width:100%;min-height:52px;padding:12px 18px 12px 12px;border-radius:22px 22px 6px 22px;border:1.5px solid #f5c9bf;background:var(--paper);text-align:left;cursor:pointer;font-size:15px;line-height:1.5;word-break:keep-all;transition:background .15s ease,border-color .15s ease,transform .15s ease,color .15s ease}
.opt:hover{border-color:var(--accent);transform:translateX(-3px)}
.opt-key{flex:0 0 auto;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent-ink);font-family:var(--mono);font-size:12px;font-weight:500}
.opt[aria-pressed="true"],.opt.is-picked{background:var(--bubble-out);border-color:var(--bubble-out);color:#fff}
.opt[aria-pressed="true"] .opt-key,.opt.is-picked .opt-key{background:rgba(255,255,255,.25);color:#fff}
.q-hint{margin:22px 0 0;text-align:center;font-size:12.5px;color:var(--sub)}
@media (hover:none){ .q-hint{display:none} }

/* ---------- 분석 중 ---------- */
.loading{min-height:420px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px}
.beat{display:flex;gap:14px}
.beat span{font-size:40px;color:var(--accent);animation:beat 1s ease-in-out infinite}
.beat span:nth-child(2){animation-delay:.15s;color:#ff8b72}
.beat span:nth-child(3){animation-delay:.3s;color:#ffb39f}
@keyframes beat{0%,100%{transform:scale(.8);opacity:.5}40%{transform:scale(1.2);opacity:1}}
.loading-text{margin:0;font-size:16px;font-weight:500;color:var(--ink-2)}

/* ---------- 결과 ---------- */
.shared-note{margin:0 0 18px;padding:14px 18px;border-radius:16px;background:var(--accent-soft);color:var(--accent-ink);font-size:14px;line-height:1.6;word-break:keep-all}
.r-letter{position:relative;overflow:hidden;background:var(--paper);border:1px solid var(--paper-line);border-radius:26px;padding:70px 32px 32px;text-align:center;box-shadow:0 30px 60px -36px rgba(150,50,30,.45)}
.r-flap{position:absolute;left:0;right:0;top:0;height:46px;background:var(--accent);clip-path:polygon(0 0,100% 0,50% 100%)}
.r-label{display:block;color:var(--accent-ink)}
.r-art{margin:18px auto 6px;display:flex;justify-content:center}
.heart-art{position:relative;display:grid;place-items:center}
.heart-art--big{width:180px;height:170px}
.heart-art--small{width:84px;height:80px}
.heart-bg{position:absolute;inset:0;background:var(--tc);opacity:.9;
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 92'><path d='M50 90C18 66 0 48 0 27 0 11 12 0 27 0c10 0 18 5 23 13C55 5 63 0 73 0c15 0 27 11 27 27 0 21-18 39-50 63z'/></svg>") center/contain no-repeat;
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 92'><path d='M50 90C18 66 0 48 0 27 0 11 12 0 27 0c10 0 18 5 23 13C55 5 63 0 73 0c15 0 27 11 27 27 0 21-18 39-50 63z'/></svg>") center/contain no-repeat}
.heart-art--big .heart-bg{animation:float 3.2s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-6px) rotate(3deg)}}
.heart-emoji{position:relative;display:grid;place-items:center;border-radius:50%;background:#fff;color:#1c1c1a;box-shadow:0 6px 16px -8px rgba(0,0,0,.35)}
.heart-art--big .heart-emoji{width:100px;height:100px;margin-top:-10px;font-size:54px}
.heart-art--small .heart-emoji{width:46px;height:46px;margin-top:-6px;font-size:24px}
.r-kicker{margin:12px 0 4px;font-size:14px;color:var(--sub)}
.r-name{margin:0;font-size:clamp(28px,7vw,38px);letter-spacing:-.02em;outline:none;word-break:keep-all}
.r-tagline{margin:10px auto 0;max-width:460px;font-size:16px;font-weight:500;line-height:1.6;color:var(--accent-ink);word-break:keep-all}
.r-desc{margin:22px 0 0;padding-top:20px;border-top:1px dashed var(--paper-line);font-size:15px;line-height:1.8;color:var(--ink-2);text-align:left;word-break:keep-all}
.r-traits{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px;text-align:left}
.r-traits li{position:relative;padding:12px 14px 12px 42px;border-radius:14px;background:var(--panel);border:1px solid var(--paper-line);font-size:14.5px;line-height:1.5;word-break:keep-all}
.r-traits li::before{content:"♥";position:absolute;left:16px;top:12px;color:var(--tc,var(--accent));font-size:14px}
.love-tip{margin-top:18px;padding:16px 18px;border-radius:16px;background:var(--cream);text-align:left}
.love-tip .mono-label{color:var(--accent-ink)}
.love-tip p{margin:6px 0 0;font-size:14.5px;line-height:1.65;word-break:keep-all}

.r-match{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.match{padding:18px;border-radius:20px;background:var(--panel);border:1px solid var(--line);min-width:0}
.match--good{border-color:#f5c9bf;background:linear-gradient(160deg,var(--accent-soft),var(--panel) 70%)}
.match-label{display:block;font-size:12.5px;color:var(--sub);margin-bottom:8px}
.match--good .match-label::before{content:"💕 "}
.match--bad .match-label::before{content:"🌀 "}
.match-type{display:flex;align-items:center;gap:8px;padding:0;background:none;border:none;cursor:pointer;text-align:left;font-size:17px}
.match-type b{text-decoration:underline;text-decoration-color:var(--line-2);text-underline-offset:4px}
.match-type:hover b{text-decoration-color:var(--accent)}
.match-emoji{font-size:26px}
.match-why{margin:8px 0 0;font-size:13.5px;line-height:1.6;color:var(--ink-2);word-break:keep-all}

.sec-h{margin:0;font-size:16px;letter-spacing:-.01em}
.sec-sub{margin:4px 0 0;font-size:13px;color:var(--sub)}
.r-bars{margin-top:18px;padding:20px;border-radius:20px;background:var(--panel);border:1px solid var(--line)}
.bars{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:9px}
.bar{display:grid;grid-template-columns:118px 1fr 40px;align-items:center;gap:10px;font-size:13px}
.bar-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--ink-2)}
.bar-track{height:10px;border-radius:999px;background:var(--track);overflow:hidden}
.bar-fill{display:block;height:100%;width:var(--w);border-radius:inherit;background:var(--tc);opacity:.55;transform-origin:left;animation:grow .7s ease var(--d) both}
.bar.is-me .bar-fill{opacity:1}
.bar.is-me .bar-name{color:var(--ink);font-weight:700}
.bar-val{font-family:var(--mono);font-size:12px;text-align:right;color:var(--sub)}
@keyframes grow{from{transform:scaleX(0)}to{transform:scaleX(1)}}

.r-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:22px}
.r-actions .cta{margin-top:0;width:100%;grid-column:1/-1}
.act{height:44px;min-width:0;padding:0 16px;border-radius:999px;border:1px solid var(--line-2);background:var(--panel);font-size:13.5px;cursor:pointer}
.act:hover{border-color:var(--accent);color:var(--accent-ink)}
.act:disabled{opacity:.5;cursor:progress}

.all-types{margin-top:30px;padding-top:24px;border-top:1px dashed var(--line-2)}
.type-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:14px}
.type-chip{position:relative;display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 6px 12px;border-radius:16px;border:1px solid var(--line);background:var(--panel);cursor:pointer;min-width:0;transition:border-color .15s ease,transform .15s ease}
.type-chip:hover{transform:translateY(-2px);border-color:var(--tc)}
.type-chip.is-open{border-color:var(--tc);box-shadow:0 0 0 2px var(--tc) inset}
.type-chip.is-me{background:var(--accent-soft)}
.chip-emoji{font-size:28px}
.chip-name{font-size:12.5px;text-align:center;line-height:1.35;word-break:keep-all}
.chip-me{position:absolute;top:-8px;left:50%;transform:translateX(-50%);padding:2px 8px;border-radius:999px;background:var(--accent);color:#fff;font-size:10.5px;white-space:nowrap}
.type-preview{position:relative;display:grid;grid-template-columns:auto 1fr;gap:16px;margin-top:12px;padding:20px 22px;border-radius:20px;background:var(--panel);border:1.5px solid var(--tc);animation:fadeUp .3s ease both}
.pv-name{margin:0;font-size:18px;padding-right:28px}
.pv-tag{margin:4px 0 0;font-size:14px;color:var(--ink-2);font-weight:500}
.pv-desc{margin:10px 0 0;font-size:14px;line-height:1.7;color:var(--ink-2);word-break:keep-all}
.pv-match{margin:6px 0 0;font-size:13px}
.pv-match span{color:var(--sub);margin-right:4px}
.pv-icon{font-style:normal}
.pv-close{position:absolute;top:10px;right:10px;width:32px;height:32px;border-radius:50%;border:none;background:var(--soft);font-size:18px;line-height:1;cursor:pointer}
.pv-close:hover{background:var(--hover)}

.toast{position:fixed;left:50%;bottom:28px;z-index:50;transform:translate(-50%,20px);opacity:0;pointer-events:none;padding:11px 18px;border-radius:999px;background:var(--ink);color:#fff;font-size:14px;transition:opacity .2s ease,transform .2s ease}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

@media (max-width:560px){
  .stage{padding:24px 16px 48px}
  .letter{padding:50px 20px 26px}
  .r-letter{padding:62px 18px 22px}
  .r-match{grid-template-columns:1fr}
  .type-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bar{grid-template-columns:96px 1fr 36px}
  .opts{padding-left:0}
  .type-preview{grid-template-columns:1fr;padding:18px}
  .r-actions{grid-template-columns:repeat(2,minmax(0,1fr))}
  .act#linkBtn{grid-column:1/-1}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}

/* 다크 모드 (인쇄는 라이트 그대로) */
@media screen{
  :root[data-theme="dark"]{
    color-scheme:dark;
    --bg:#16131a; --surface:#1c1820; --panel:#221d26; --panel-soft:#27212b;
    --ink:#f0eaec; --ink-hover:#ffffff; --ink-2:#d0c6ca; --sub:#a89ca2; --muted:#8f8489;
    --line:#332c35; --line-2:#3e3640; --line-3:#2a242d; --hover:#2e2731; --soft:#2a242d; --track:#3a3239;
    --accent:#ff7a69; --accent-ink:#ff9a8b; --accent-soft:rgba(255,122,105,.16);
    --paper:#201b23; --paper-line:#3a2f35; --cream:#2b2026; --bubble-in:#262028; --bubble-out:#e8584a;
  }
  :root[data-theme="dark"] .toast{color:var(--bg)}
  :root[data-theme="dark"] .cta,:root[data-theme="dark"] .chip-me{background:#d9483b}
  :root[data-theme="dark"] .opt{border-color:#4a3438}
  :root[data-theme="dark"] .match--good{border-color:#5a3a3a}
  :root[data-theme="dark"] .env-flap{background:#d94d40}
  :root[data-theme="dark"] .env-flap span{background:#2a2126;color:#ff8b7a}
  :root[data-theme="dark"] .heart-emoji{background:#fff7f4}
  :root[data-theme="dark"] .stage{background-image:radial-gradient(circle at 1px 1px,rgba(255,122,105,.14) 1px,transparent 1.5px)}
}