/* 행간 — 정밀 핀테크 라이트
   오프화이트 캔버스 + 잉크 네이비 본문 + 인디고 강조 1개(면적 5% 이하).
   그라디언트 없음. 분리는 1px 헤어라인 보더로, 그림자는 1단계만. */

@import url("https://fonts.googleapis.com/css2?family=Inter+Tight:wght@400;500;600&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
  --bg: #f6f5f3;
  --surface: #ffffff;
  --fg: #1a2233;
  --fg2: #5b6472;
  --fg3: #8a9099;
  --line: #e4e2dd;
  --accent: #4f46e5;
  --accent-soft: #eef0fd;
  --accent-ink: #3b34c4;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --t: 200ms var(--ease);
  --shadow: 0 1px 2px rgba(26, 34, 51, 0.05);
  --pad: 24px;
  --nav-h: 60px;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
  --disp: "Inter Tight", Pretendard, -apple-system, sans-serif;
  /* 주의도 3단계 — 인디고 강조와 색상환을 벌려 구분한다 */
  --c-low: #1f7a5a;
  --c-mid: #9a6b12;
  --c-high: #b4531f;
  --c-pos: #1f6f8b;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  background: var(--bg); color: var(--fg);
  font-family: Inter, Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  font-size: 1.0625rem; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  padding-bottom: calc(var(--nav-h) + env(safe-area-inset-bottom) + 8px);
  min-height: 100vh; overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; border: 0; background: none; color: inherit; cursor: pointer; }
[hidden] { display: none !important; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

h1 { font-family: var(--disp); font-size: clamp(2.1rem, 4vw, 3.3rem); font-weight: 500;
     letter-spacing: -0.035em; line-height: 1.05; }
h2 { font-family: var(--disp); font-size: clamp(1.6rem, 2.8vw, 2.3rem); font-weight: 500;
     letter-spacing: -0.025em; line-height: 1.14; }
h3 { font-family: var(--disp); font-size: 1.125rem; font-weight: 500; line-height: 1.3; letter-spacing: -0.015em; }
p { color: var(--fg2); }
.label { font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg2); }
.meta { font-size: 0.875rem; color: var(--fg3); }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 var(--pad); }
.wrap.narrow { max-width: 780px; }
section { padding: clamp(28px, 3vw, 40px) 0; }
section.tight { padding: clamp(18px, 2vw, 24px) 0; }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.sec-head h2 + p { margin-top: 6px; }
.rel { position: relative; z-index: 1; }

/* ---------- 헤더 ---------- */
.top { position: sticky; top: 0; z-index: 40; height: var(--nav-h);
       background: rgba(255, 255, 255, 0.86); backdrop-filter: blur(12px);
       border-bottom: 1px solid var(--line); }
.top-in { max-width: 1120px; margin: 0 auto; padding: 0 var(--pad); height: 100%;
          display: flex; align-items: center; justify-content: space-between; }
.wordmark { font-family: var(--disp); font-size: 1.0625rem; font-weight: 600; letter-spacing: -0.025em;
            display: flex; align-items: center; gap: 8px; }
.wordmark .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.nav-links { display: none; gap: 2px; }
.nav-links a { padding: 7px 12px; border-radius: 8px; font-size: 0.9375rem; color: var(--fg2); transition: var(--t); }
.nav-links a:hover { color: var(--fg); background: rgba(26, 34, 51, 0.04); }
.nav-links a.on { color: var(--accent); background: var(--accent-soft); }
.top-right { display: flex; align-items: center; gap: 8px; }
@media (min-width: 900px) { .nav-links { display: flex; } }

/* ---------- 하단 탭바 ---------- */
.tabbar { position: fixed; bottom: 0; left: 0; right: 0; z-index: 45;
          height: calc(var(--nav-h) + env(safe-area-inset-bottom));
          padding-bottom: env(safe-area-inset-bottom);
          background: rgba(255, 255, 255, 0.94); backdrop-filter: blur(12px);
          border-top: 1px solid var(--line); display: flex; }
.tab { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
       font-size: 0.6875rem; font-weight: 500; color: var(--fg3); transition: var(--t); }
.tab svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.5;
           stroke-linecap: round; stroke-linejoin: round; }
.tab.active { color: var(--accent); }
@media (min-width: 900px) { .tabbar { display: none; } body { padding-bottom: 0; } }

/* ---------- 히어로 ---------- */
.hero { padding-top: clamp(14px, 1.6vw, 24px); padding-bottom: 0; }
.hero .lede { margin-top: 18px; font-size: 1.0625rem; max-width: 62ch; }
.hero-cta { display: flex; gap: 12px; margin-top: 26px; flex-wrap: wrap; align-items: center; }
.hero-badges { display: flex; gap: 8px; margin-top: 22px; flex-wrap: wrap; }

/* ---------- 버튼 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px;
       border-radius: 8px; padding: 11px 20px; font-size: 0.9375rem; font-weight: 500;
       background: var(--surface); border: 1px solid var(--line); color: var(--fg);
       transition: var(--t); white-space: nowrap; }
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.pri { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.pri:hover { background: var(--accent-ink); border-color: var(--accent-ink); color: #fff; }
.btn.sm { padding: 7px 13px; font-size: 0.875rem; }
.btn.block { display: flex; width: 100%; }
.btn:disabled { opacity: 0.45; pointer-events: none; }
.btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.5;
           stroke-linecap: round; stroke-linejoin: round; }

/* ---------- 칩 ---------- */
.chip { display: inline-flex; align-items: center; gap: 6px;
        border-radius: 999px; border: 1px solid var(--line); background: var(--surface);
        padding: 5px 12px; font-size: 0.8125rem; font-weight: 500; color: var(--fg2);
        transition: var(--t); white-space: nowrap; }
button.chip:hover, a.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.on { background: var(--accent-soft); border-color: #c5c7f6; color: var(--accent-ink); }
.chip.accent { border-color: #c5c7f6; color: var(--accent); background: var(--accent-soft); }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- 주의도 점 ---------- */
.cau { display: inline-flex; align-items: center; gap: 6px; font-size: 0.8125rem; color: var(--fg2); }
.cau i { width: 7px; height: 7px; border-radius: 50%; background: var(--fg3); display: block; flex-shrink: 0; }
.cau.c-high i { background: var(--c-high); }
.cau.c-mid i { background: var(--c-mid); }
.cau.c-low i { background: var(--c-low); }
.cau.c-pos i { background: var(--c-pos); }

/* ---------- 벤토 ---------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.tile { position: relative; grid-column: span 2; border-radius: 10px;
        background: var(--surface); border: 1px solid var(--line);
        box-shadow: var(--shadow); padding: 20px; overflow: hidden;
        transition: border-color var(--t), transform var(--t); }
a.tile:hover, button.tile:hover { border-color: var(--accent); transform: translateY(-2px); }
.tile.w2 { grid-column: span 2; } .tile.w3 { grid-column: span 3; }
.tile.w4 { grid-column: span 4; } .tile.w6 { grid-column: span 6; }
.tile .t-lab { font-size: 0.75rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg3); }
.tile h3 { margin-top: 6px; }
.tile .t-body { font-size: 0.9375rem; color: var(--fg2); margin-top: 8px; }
.tile .t-foot { margin-top: 16px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.metric .n { font-family: var(--mono); font-variant-numeric: tabular-nums;
             font-size: clamp(1.9rem, 3.4vw, 2.5rem); font-weight: 500;
             letter-spacing: -0.03em; line-height: 1; margin-top: 12px; }
.metric .n.accent { color: var(--accent); }
.metric .u { font-size: 0.875rem; color: var(--fg3); margin-left: 4px; font-family: Inter, sans-serif; }
.metric .sub { font-size: 0.875rem; color: var(--fg3); margin-top: 8px; }
@media (max-width: 1024px) {
  .bento { grid-template-columns: repeat(4, 1fr); }
  .tile.w6, .tile.w4 { grid-column: span 4; } .tile.w3 { grid-column: span 2; }
}
@media (max-width: 720px) {
  .bento { grid-template-columns: 1fr; gap: 12px; }
  .tile, .tile.w2, .tile.w3, .tile.w4, .tile.w6 { grid-column: span 1; }
}

/* ---------- 입력 ---------- */
.fld { border-radius: 10px; background: var(--surface); border: 1px solid var(--line);
       box-shadow: var(--shadow); padding: 18px 20px; }
.fld > label { display: block; font-size: 0.75rem; font-weight: 500; letter-spacing: 0.08em;
               text-transform: uppercase; color: var(--fg2); margin-bottom: 10px; }
.fld .hint { font-size: 0.875rem; color: var(--fg3); margin-top: 9px; }
.fld .hint a { color: var(--accent); }
input, select, textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--fg); background: var(--surface);
  border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; transition: var(--t);
}
textarea { min-height: 200px; resize: vertical; line-height: 1.7; font-size: 0.9375rem; }
input:hover, select:hover, textarea:hover { border-color: #cfccc4; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12); }
input::placeholder, textarea::placeholder { color: var(--fg3); }
select { appearance: none; background-image:
  url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' fill='none' stroke='%235b6472' stroke-width='1.5' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat; background-position: right 13px center; padding-right: 34px; }
.ta-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px;
           margin-top: 10px; flex-wrap: wrap; }
.ta-count { font-family: var(--mono); font-size: 0.8125rem; color: var(--fg3); }
.ta-count.over { color: var(--c-high); }

/* ---------- 마스킹 미리보기 ---------- */
.mask-box { margin-top: 12px; padding: 13px 15px; border-radius: 8px; font-size: 0.875rem;
            background: var(--accent-soft); border: 1px solid #dcdefb; color: var(--fg); }
.mask-box b { display: block; color: var(--accent-ink); font-size: 0.6875rem; font-weight: 500;
              letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 5px; }
.mask-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.mask-tag { font-family: var(--mono); font-size: 0.75rem; background: var(--surface);
            border: 1px solid #dcdefb; border-radius: 999px; padding: 2px 9px; color: var(--accent-ink); }

/* ---------- 표현 카드 ---------- */
.phrase { border-radius: 10px; background: var(--surface); border: 1px solid var(--line);
          box-shadow: var(--shadow); padding: 20px; transition: border-color var(--t); }
a.phrase:hover, .phrase:hover { border-color: var(--accent); }
.phrase .hd { display: flex; align-items: center; gap: 10px; justify-content: space-between; flex-wrap: wrap; }
.phrase .tx { font-family: var(--disp); font-size: 1.125rem; font-weight: 500; letter-spacing: -0.015em; }
.phrase .lit { font-size: 0.875rem; color: var(--fg3); margin-top: 6px; }
.phrase .rd { font-size: 0.9375rem; color: var(--fg); margin-top: 12px; }
.phrase .why { font-size: 0.875rem; color: var(--fg2); margin-top: 8px; }
.phrase .counter { margin-top: 12px; padding: 11px 14px; border-radius: 8px; font-size: 0.875rem;
                   background: #f1f6f3; border: 1px solid #d9e7df; color: #2c4a3c; }
.phrase .counter b { display: block; color: var(--c-low); font-size: 0.6875rem; font-weight: 500;
                     letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 4px; }
.phrase .foot { margin-top: 14px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.phrase-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }

/* 긍정 신호 */
.phrase.pos .counter { background: #eef5f8; border-color: #d5e6ee; color: #234b5c; }
.phrase.pos .counter b { color: var(--c-pos); }

/* ---------- 확인 질문 ---------- */
.q { display: flex; gap: 12px; padding: 13px 16px; border-radius: 8px; font-size: 0.9375rem;
     background: var(--surface); border: 1px solid var(--line); align-items: flex-start; }
.q .i { flex-shrink: 0; width: 24px; font-family: var(--mono); font-variant-numeric: tabular-nums; color: var(--accent); }
.q .why-ask { font-size: 0.8125rem; color: var(--fg3); margin-top: 4px; }
.q-list { display: grid; gap: 8px; }

/* ---------- 분석 결과 ---------- */
.summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.summary > div { border-radius: 10px; background: var(--surface); border: 1px solid var(--line);
                 box-shadow: var(--shadow); padding: 16px; }
.summary .n { font-family: var(--mono); font-variant-numeric: tabular-nums;
              font-size: 1.75rem; font-weight: 500; line-height: 1; margin-top: 8px; }
.summary .k { font-size: 0.8125rem; color: var(--fg3); }
@media (max-width: 720px) { .summary { grid-template-columns: repeat(2, 1fr); } }

.ai-item { border-radius: 10px; background: var(--surface); border: 1px solid var(--line);
           box-shadow: var(--shadow); padding: 18px 20px; }
.ai-item .src { font-family: var(--mono); font-size: 0.8125rem; color: var(--fg3);
                padding-left: 12px; border-left: 2px solid var(--line); }
.ai-item .rd { font-size: 0.9375rem; margin-top: 12px; }
.ai-badge { font-size: 0.6875rem; font-family: var(--mono); color: var(--accent-ink);
            background: var(--accent-soft); border: 1px solid #dcdefb;
            border-radius: 999px; padding: 2px 9px; }

/* ---------- 표 ---------- */
.table-wrap { overflow-x: auto; border-radius: 10px; border: 1px solid var(--line);
              background: var(--surface); box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
th, td { padding: 13px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
tr:last-child th, tr:last-child td { border-bottom: 0; }
th { font-size: 0.75rem; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase;
     color: var(--fg3); white-space: nowrap; }
thead th { background: #fbfaf8; }
td { color: var(--fg2); }
td b, td strong { color: var(--fg); font-weight: 500; }

/* ---------- 아코디언 ---------- */
.acc { border-radius: 8px; border: 1px solid var(--line); background: var(--surface);
       overflow: hidden; transition: var(--t); }
.acc:hover { border-color: #cfccc4; }
.acc > button { width: 100%; text-align: left; padding: 15px 18px; font-size: 0.9375rem; font-weight: 400;
                display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.acc > button b { font-weight: 500; }
.acc > button .mk { color: var(--fg3); flex-shrink: 0; font-family: var(--mono); }
.acc .body { padding: 0 18px 16px; font-size: 0.9375rem; color: var(--fg2); }
.acc .body .rel-terms { margin-top: 12px; display: flex; gap: 6px; flex-wrap: wrap; }
.acc-list { display: grid; gap: 8px; }

/* ---------- 공유 카드 ---------- */
.share-card { border-radius: 10px; overflow: hidden; border: 1px solid var(--line);
              background: var(--surface); box-shadow: var(--shadow); }
.share-card .sc-top { padding: 28px 24px; text-align: center; border-bottom: 1px solid var(--line); }
.share-card .sc-lab { font-size: 0.6875rem; letter-spacing: 0.16em; color: var(--fg3); font-family: var(--mono); }
.share-card .sc-g { font-family: var(--disp); font-size: clamp(1.5rem, 4vw, 2rem); font-weight: 500;
                    letter-spacing: -0.025em; margin-top: 10px; }
.share-card ul { list-style: none; padding: 0 24px 20px; }
.share-card li { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 0.9375rem; color: var(--fg2); }
.share-card li:last-child { border-bottom: 0; }
.share-card .sc-foot { padding: 12px 24px; border-top: 1px solid var(--line);
                       font-size: 0.6875rem; letter-spacing: 0.1em; color: var(--fg3); font-family: var(--mono); }

/* ---------- 면책 (숨기지 말 것) ---------- */
.disclaimer { margin-top: 20px; padding: 15px 17px; border-radius: 8px; font-size: 0.875rem;
              color: var(--fg2); background: #fbfaf8; border: 1px solid var(--line); }
.disclaimer b { display: block; color: var(--fg3); font-size: 0.6875rem; font-weight: 500;
                letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 5px; }

/* ---------- 상태 ---------- */
.empty { padding: 52px 24px; text-align: center; border-radius: 10px;
         background: var(--surface); border: 1px solid var(--line); }
.empty .big { font-family: var(--disp); font-size: 1.25rem; font-weight: 500; }
.empty p { margin: 8px auto 18px; max-width: 46ch; }
.skel { height: 78px; border-radius: 10px; border: 1px solid var(--line);
        background: linear-gradient(100deg, #f4f3f0 30%, #fbfaf8 50%, #f4f3f0 70%);
        background-size: 240% 100%; animation: sh 1.4s linear infinite; }
.skel-grid { display: grid; gap: 12px; }
@keyframes sh { from { background-position: 140% 0; } to { background-position: -40% 0; } }
#toast { position: fixed; bottom: calc(var(--nav-h) + 16px); left: 50%; transform: translateX(-50%) translateY(8px);
  background: var(--fg); color: #fff; font-size: 0.9375rem; padding: 11px 18px; border-radius: 8px;
  z-index: 60; opacity: 0; box-shadow: 0 6px 20px rgba(26, 34, 51, 0.22);
  transition: opacity var(--t), transform var(--t); pointer-events: none; max-width: 90%; text-align: center; }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
@media (min-width: 900px) { #toast { bottom: 24px; } }

/* ---------- 푸터 ---------- */
.foot { border-top: 1px solid var(--line); padding: 32px 0 40px; margin-top: 40px; }
.foot .cols { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot a { font-family: var(--mono); font-size: 0.8125rem; color: var(--fg2); transition: var(--t); }
.foot a:hover { color: var(--accent); }
.foot .links { display: flex; gap: 16px; flex-wrap: wrap; }
.foot .m { color: var(--fg3); font-size: 0.875rem; margin-top: 18px; max-width: 72ch; }

/* ---------- 스크롤 진입 ---------- */
.reveal { opacity: 0; transform: translateY(12px); }
.reveal.in { opacity: 1; transform: none; transition: opacity 220ms var(--ease), transform 220ms var(--ease); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: 1ms !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
  .tile:hover, .btn:hover { transform: none; }
}