/* 이름레이더 — 심플 모던 데이터 (docs/design-direction.md) */
:root {
  --bg: #F6F7F9;
  --bg-2: #ECEEF2;
  --card: #FFFFFF;
  --card-2: #F6F7F9;
  --ink: #15171C;
  --ink-2: #3F434C;
  --ink-3: #6A6F7A;
  --line: #E3E5EA;
  --brand: #2B50D8;
  --brand-ink: #2B50D8;
  --brand-soft: #E7ECFA;
  --bar: #C9CDD6;
  --btn: #15171C;
  --on-btn: #FFFFFF;
  --on-brand: #FFFFFF;
  --data-2: #B8612F;
  --danger: #C4352B;
  --warn: #A3530F;
  --sheet-shadow: 0 8px 24px -12px rgba(0, 0, 0, .12);
  --r: 12px;
  --r-btn: 10px;
  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  --display: "IBM Plex Sans KR", "Pretendard Variable", Pretendard, -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101114;
    --bg-2: #1E2026;
    --card: #17191D;
    --card-2: #101114;
    --ink: #E9EBEF;
    --ink-2: #C3C6CE;
    --ink-3: #8C919C;
    --line: #292C33;
    --brand: #8A9BD8;
    --brand-ink: #8A9BD8;
    --brand-soft: #1C2130;
    --bar: #3A3E47;
    --btn: #E9EBEF;
    --on-btn: #101114;
    --on-brand: #101114;
    --data-2: #D29A72;
    --danger: #EE8A80;
    --warn: #E2A15C;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font); font-size: 16px; line-height: 1.6; letter-spacing: -.01em;
  word-break: keep-all; overflow-wrap: anywhere;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand-ink); }
button, input, select { font: inherit; color: inherit; }
img, svg { max-width: 100%; }
.num, td.num { font-variant-numeric: tabular-nums; }
.wrap { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.wrap.wide { max-width: 1040px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--bg); padding: 8px 12px; border-radius: var(--r-btn); z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }

/* header */
.top { position: sticky; top: 0; z-index: 20; background: var(--bg); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.brand { color: var(--ink); text-decoration: none; font-family: var(--display); font-weight: 700; font-size: 18px; letter-spacing: -.02em; }
.top-link { font-size: 14px; font-weight: 500; color: var(--ink-3); text-decoration: none; padding: 6px 10px; border-radius: 999px; }
.top-link:hover { color: var(--ink); background: var(--bg-2); }

/* hero: 입력 칸이 첫 화면 */
.hero { padding: 28px 0 8px; }
.hero-q { margin: 0 0 18px; font-family: var(--display); font-size: 20px; font-weight: 700; letter-spacing: -.02em; color: var(--ink-2); }
.search { display: grid; gap: 14px; }
.hero-grid { display: grid; gap: 22px; }
.name-field { display: block; }
.name-field input {
  width: 100%; height: 72px; padding: 0 2px; border: 0; border-bottom: 2px solid var(--ink); border-radius: 0; background: transparent;
  font-family: var(--display); font-size: 40px; font-weight: 700; letter-spacing: .04em; color: var(--ink);
}
.name-field input::placeholder { color: var(--ink-3); opacity: .55; font-weight: 700; }
.name-field input:focus { outline: none; border-bottom-color: var(--brand); }
.name-field input:focus-visible { outline: none; }
.live-out { margin-top: 16px; }
.live-k { margin: 0; font-size: 16px; color: var(--ink-2); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.live-k b { color: var(--ink); }
.ex-tag { display: inline-block; font-size: 12px; font-weight: 700; line-height: 1; padding: 5px 8px; border-radius: 999px; background: var(--ink); color: var(--bg); letter-spacing: 0; }
.live-v { margin: 2px 0 0; font-family: var(--display); font-weight: 700; font-size: clamp(36px, 10vw, 88px); line-height: 1.05; letter-spacing: -.04em; color: var(--brand-ink); white-space: nowrap; }
.live-v .u { font-size: .42em; margin-left: .12em; letter-spacing: 0; color: var(--ink); }
.is-ex .live-v { color: var(--ink-3); }
.is-ex .live-v .u { color: var(--ink-3); }
.live-d { margin: 8px 0 0; font-size: 14px; color: var(--ink-3); }

.peak { margin: 0; padding: 16px 16px 12px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); min-width: 0; }
.peak-cap { font-size: 14px; font-weight: 700; color: var(--ink); }
.bars-box { margin-top: 10px; }
.bars { display: block; width: 100%; height: auto; overflow: visible; }
.bars .base { stroke: var(--line); stroke-width: 1; }
.bars .b { fill: var(--bar); }
.bars .b.hot { fill: var(--brand); }
.bars .b.part { opacity: .55; }
.bars .b-out { fill: var(--line); }
.bars .b-lbl { font-family: var(--font); font-size: 12px; font-weight: 700; fill: var(--brand-ink); }
.bars .b-lbl.dim { fill: var(--ink-3); font-weight: 500; }
.bars .b-ax { font-family: var(--font); font-size: 11px; fill: var(--ink-3); }
.bars-empty { min-height: 120px; display: grid; place-items: center; text-align: center; font-size: 14px; color: var(--ink-3); padding: 12px; background: var(--card-2); border-radius: var(--r-btn); }
.peak-note { margin: 10px 0 0; font-size: 14px; color: var(--ink-2); }
.peak-note b { color: var(--ink); }

.help { margin: 0; font-size: 12px; color: var(--ink-3); line-height: 1.5; }
.opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; align-items: end; }
.opts .btn-main { grid-column: 1 / -1; }
.field { display: grid; gap: 6px; margin: 0; border: 0; padding: 0; min-width: 0; }
.lbl { font-size: 14px; font-weight: 500; color: var(--ink-2); padding: 0; }
.lbl small { font-size: 12px; font-weight: 500; color: var(--ink-3); margin-left: 2px; }
.field input[type=text], .field input[type=number] {
  width: 100%; height: 48px; padding: 0 14px; border-radius: var(--r-btn); border: 1px solid var(--line); background: var(--card);
  font-size: 16px; font-weight: 500; transition: border-color .15s; -moz-appearance: textfield; appearance: textfield;
}
.field input::-webkit-outer-spin-button, .field input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.field input:focus { outline: none; border-color: var(--brand); }
.field input::placeholder { color: var(--ink-3); font-weight: 500; }
.seg-in { display: grid; grid-template-columns: repeat(3, 1fr); height: 48px; padding: 3px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-btn); }
.seg-in input { position: absolute; opacity: 0; pointer-events: none; }
.seg-in label { display: grid; place-items: center; border-radius: 8px; font-weight: 500; font-size: 14px; color: var(--ink-3); cursor: pointer; transition: background .15s, color .15s; }
.seg-in input:checked + label { background: var(--ink); color: var(--bg); font-weight: 700; }
.seg-in input:focus-visible + label { outline: 2px solid var(--brand); }
.hanja-opt summary { cursor: pointer; font-size: 14px; font-weight: 500; color: var(--ink-2); list-style: none; display: inline-flex; gap: 6px; align-items: center; min-height: 32px; }
.hanja-opt summary::-webkit-details-marker { display: none; }
.hanja-opt summary::before { content: "+"; display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 6px; border: 1px solid var(--line); font-weight: 500; }
.hanja-opt[open] summary::before { content: "−"; }
.hanja-opt summary small { color: var(--ink-3); font-weight: 500; font-size: 12px; }
.hanja-opt .field { margin-top: 10px; max-width: 320px; }
.err { margin: 0; color: var(--danger); font-size: 14px; font-weight: 500; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; cursor: pointer; border-radius: var(--r-btn); font-weight: 700; text-decoration: none; transition: background .15s, border-color .15s; }
.btn:active { transform: scale(.99); }
.btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.btn-main { height: 52px; font-size: 16px; color: var(--on-btn); background: var(--btn); }
.btn-main:hover { opacity: .92; }
.btn-ghost { height: 46px; padding: 0 16px; font-size: 14px; background: var(--card); color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--ink-3); }
.btn-solid { height: 46px; padding: 0 18px; font-size: 14px; background: var(--btn); color: var(--on-btn); }
.btn-solid:disabled { opacity: .6; }
.link-btn { background: none; border: 0; padding: 4px; color: var(--ink-3); font-size: 12px; cursor: pointer; text-decoration: underline; }

.recent { margin-top: 18px; }
.recent-head { display: flex; justify-content: space-between; align-items: center; font-size: 12px; font-weight: 500; color: var(--ink-3); margin-bottom: 6px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; gap: 4px; min-height: 36px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); font-size: 14px; font-weight: 500; cursor: pointer; color: var(--ink); }
.chip:hover { border-color: var(--ink-3); }
.chip small { font-weight: 500; color: var(--ink-3); font-size: 12px; }

/* ads: 공용 .jl-ad(../common/ads.css). 버튼·링크와 150px 넘게 띄우는 자리만 쓴다 */
.jl-ad { margin: 56px auto; }
.jl-ad.gap-t { margin-top: 150px; }   /* 바로 위가 버튼·접기(summary)인 자리 */
.jl-ad.gap-t2 { margin-top: 124px; }  /* 위 버튼과 사이에 설명 한 줄이 있는 자리 */
.jl-ad.gap-b { margin-bottom: 80px; } /* 아래 카드의 첫 버튼까지 제목·설명이 있는 자리 */
.jl-ad.gap-b2 { margin-bottom: 110px; } /* 아래 제목 바로 뒤가 접기(summary)인 자리 */
.jl-ad.ad-end { margin-bottom: 124px; }

/* blocks */
.block { margin: 44px auto; }
.block-head h2, .faq h2 { margin: 0 0 4px; font-family: var(--display); font-size: 20px; letter-spacing: -.02em; font-weight: 700; }
.block-head .sub { margin: 0 0 14px; color: var(--ink-3); font-size: 14px; }
.note { font-size: 12px; color: var(--ink-3); margin: 12px 2px 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 16px; }
.card + .card { margin-top: 12px; }
.card h3 { margin: 0 0 8px; font-size: 16px; font-weight: 700; letter-spacing: -.02em; }
.card .cap { margin: 0 0 12px; color: var(--ink-3); font-size: 14px; }

/* result */
.result { padding-top: 28px; outline: none; scroll-margin-top: 64px; border-top: 1px solid var(--line); margin-top: 28px; }
.r-hero { padding: 0 0 18px; border-bottom: 1px solid var(--line); }
.r-hero .tag { display: inline-flex; gap: 6px; align-items: center; font-size: 12px; font-weight: 500; color: var(--ink-3); border: 1px solid var(--line); background: var(--card); padding: 3px 10px; border-radius: 999px; }
.r-name { margin: 12px 0 0; font-family: var(--display); font-size: 28px; font-weight: 700; letter-spacing: .02em; line-height: 1.25; }
.r-name small { font-size: 16px; font-weight: 500; letter-spacing: 0; color: var(--ink-3); margin-left: 6px; }
.r-big { margin: 16px 0 0; font-size: 14px; color: var(--ink-2); }
.r-big b { display: block; margin-top: 2px; font-family: var(--display); font-size: 28px; line-height: 1.25; letter-spacing: -.02em; font-weight: 700; color: var(--ink); font-variant-numeric: tabular-nums; }
.r-big b .unit { font-size: 20px; font-weight: 700; margin-left: 2px; }
.r-range { margin: 4px 0 0; font-size: 14px; color: var(--ink-3); }
.r-same { margin: 14px 0 0; padding: 10px 12px; border-radius: var(--r-btn); background: var(--card); border: 1px solid var(--line); font-size: 14px; }
.r-same b { color: var(--ink); font-variant-numeric: tabular-nums; }
.est-badge { display: inline-block; font-size: 12px; font-weight: 500; line-height: 1.4; padding: 0 6px; border-radius: 999px; border: 1px solid var(--line); color: var(--ink-3); vertical-align: 2px; margin-left: 4px; letter-spacing: 0; }

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 16px 0 12px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 14px; min-width: 0; }
.stat .k { font-size: 12px; font-weight: 500; color: var(--ink-3); }
.stat .v { display: block; margin-top: 2px; font-size: 20px; font-weight: 700; letter-spacing: -.02em; line-height: 1.3; font-variant-numeric: tabular-nums; }
.stat .v small { font-size: 14px; font-weight: 500; color: var(--ink-2); }
.stat .d { display: block; margin-top: 4px; font-size: 12px; color: var(--ink-2); line-height: 1.5; }
.stat.wide { grid-column: 1 / -1; }
.stat.accent .v { color: var(--brand-ink); }
.meter { height: 6px; border-radius: 999px; background: var(--bg-2); overflow: hidden; margin-top: 8px; }
.meter i { display: block; height: 100%; border-radius: 999px; background: var(--brand); }

/* chart */
.chart-wrap { margin: 0 -4px; }
.chart { display: block; width: 100%; height: auto; overflow: visible; }
.chart .grid line { stroke: var(--line); stroke-width: 1; }
.chart .axis text { fill: var(--ink-3); font-size: 11px; font-family: var(--font); }
.chart .zone { fill: var(--bg-2); opacity: .7; }
.chart .gap-band { fill: url(#hatch); opacity: .5; }
.chart .ln { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .ln-m { stroke: var(--brand); }
.chart .ln-f { stroke: var(--data-2); }
.chart .pt-m { fill: var(--brand); }
.chart .pt-f { fill: var(--data-2); }
.chart .pt-era { fill: var(--card); stroke-width: 2; }
.chart .pt-era.pt-m { stroke: var(--brand); }
.chart .pt-era.pt-f { stroke: var(--data-2); }
.chart .peak-lbl { font-size: 12px; font-weight: 700; fill: var(--ink); font-family: var(--font); }
.chart .lbl-out { font-size: 11px; fill: var(--ink-3); font-family: var(--font); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12px; color: var(--ink-2); margin-top: 8px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 14px; height: 3px; border-radius: 2px; display: inline-block; }
.legend .o { width: 9px; height: 9px; border-radius: 50%; border: 2px solid; background: transparent; }
details.tbl { margin-top: 10px; font-size: 14px; }
details.tbl summary { cursor: pointer; color: var(--ink-2); font-weight: 500; }
.tbl-scroll { overflow-x: auto; margin-top: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--ink-3); font-weight: 500; font-size: 12px; }
td.num { text-align: right; }

/* lists */
.toplist { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px; counter-reset: t; }
.toplist li { counter-increment: t; display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: var(--r-btn); border: 1px solid var(--line); font-weight: 500; font-size: 14px; }
.toplist li::before { content: counter(t); width: 20px; text-align: center; font-size: 12px; font-weight: 700; color: var(--ink-3); flex: none; font-variant-numeric: tabular-nums; }
.toplist li.me { border-color: var(--brand); color: var(--brand-ink); font-weight: 700; }
.toplist li.me::before { color: var(--brand-ink); }

.hanja-row { display: flex; flex-wrap: wrap; gap: 10px; }
.hj { min-width: 96px; flex: 1; text-align: center; padding: 12px 8px; border-radius: var(--r); border: 1px solid var(--line); }
.hj .c { display: block; font-size: 28px; line-height: 1.3; font-weight: 500; font-family: "Noto Serif CJK KR", "Source Han Serif K", "Batang", serif; }
.hj .h { display: block; font-size: 14px; font-weight: 700; margin-top: 4px; }
.hj .s { display: block; font-size: 12px; color: var(--ink-3); }
.hj.warn .h { color: var(--warn); }

.how { margin-top: 12px; }
.how summary { cursor: pointer; font-weight: 700; font-size: 16px; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.how summary::-webkit-details-marker { display: none; }
.how summary::after { content: ""; width: 8px; height: 8px; border-right: 1.5px solid var(--ink-3); border-bottom: 1.5px solid var(--ink-3); transform: rotate(45deg); transition: transform .2s; margin-right: 4px; }
.how[open] summary::after { transform: rotate(-135deg); }
.how .body { font-size: 14px; color: var(--ink-2); }
.formula { margin: 12px 0; padding: 12px 14px; border-radius: var(--r-btn); background: var(--card-2); border: 1px solid var(--line); font-size: 14px; line-height: 1.8; color: var(--ink); }
.formula b { color: var(--brand-ink); }
.how ul { padding-left: 18px; margin: 8px 0; }
.how li { margin: 4px 0; }

.actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.actions .btn { width: 100%; }
.card-preview { margin-top: 12px; display: none; }
.card-preview.on { display: block; }
.card-preview img { display: block; width: 100%; height: auto; max-width: 360px; margin: 0 auto; border-radius: var(--r); border: 1px solid var(--line); }
.friend-form { display: flex; gap: 8px; margin: 4px 0 12px; }
.friend-form input { flex: 1; min-width: 0; height: 46px; padding: 0 14px; border-radius: var(--r-btn); border: 1px solid var(--line); background: var(--card-2); font-size: 16px; font-weight: 500; }
.friend-form input:focus { outline: none; border-color: var(--brand); }
.split-hint { margin: 10px 0 0; font-size: 14px; }
.split-hint button { background: none; border: 0; padding: 0; color: var(--brand-ink); font-weight: 700; text-decoration: underline; cursor: pointer; font-size: 14px; }
.muted { color: var(--ink-3); }

/* top10 */
.t10-ctrl { display: flex; gap: 10px; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.tabs { display: inline-flex; padding: 3px; background: var(--card); border: 1px solid var(--line); border-radius: 999px; }
.tabs button { border: 0; background: none; padding: 7px 14px; border-radius: 999px; font-weight: 500; font-size: 14px; color: var(--ink-3); cursor: pointer; }
.tabs button[aria-selected=true] { background: var(--ink); color: var(--bg); font-weight: 700; }
.sel select { height: 40px; padding: 0 30px 0 12px; border-radius: var(--r-btn); border: 1px solid var(--line); background-color: var(--card); font-weight: 500; font-size: 14px; }
.t10 { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.t10 li button { width: 100%; display: grid; grid-template-columns: 28px 1fr auto; align-items: center; gap: 10px; padding: 10px 12px; border-radius: var(--r-btn); border: 1px solid var(--line); background: var(--card); cursor: pointer; text-align: left; position: relative; overflow: hidden; }
.t10 li button:hover { border-color: var(--brand); }
.t10 .rk { font-weight: 700; font-size: 14px; color: var(--ink-3); text-align: center; font-variant-numeric: tabular-nums; position: relative; z-index: 1; }
.t10 li:nth-child(-n+3) .rk { color: var(--brand-ink); }
.t10 .nm { font-weight: 700; font-size: 16px; position: relative; z-index: 1; }
.t10 .ct { font-size: 12px; color: var(--ink-2); font-variant-numeric: tabular-nums; position: relative; z-index: 1; }
.t10 .bar { position: absolute; left: 0; top: 0; bottom: 0; background: var(--brand-soft); z-index: 0; }

.era-strip { display: flex; gap: 10px; overflow-x: auto; padding: 2px 2px 10px; scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch; }
.era { flex: 0 0 132px; scroll-snap-align: start; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 14px; }
.era .d { font-size: 12px; font-weight: 700; color: var(--ink-3); }
.era button { display: block; width: 100%; text-align: left; margin-top: 6px; border: 0; background: none; padding: 0; cursor: pointer; font-size: 16px; font-weight: 700; letter-spacing: -.02em; color: var(--ink); }
.era button:hover { color: var(--brand-ink); }
.era button small { font-size: 12px; font-weight: 500; margin-right: 6px; color: var(--ink-3); }

.faq details { border-bottom: 1px solid var(--line); padding: 12px 2px; }
.faq summary { cursor: pointer; font-weight: 700; font-size: 16px; }
.faq p { margin: 8px 0 0; color: var(--ink-2); font-size: 14px; }

.toast { position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom)); transform: translateX(-50%); background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: var(--r-btn); font-size: 14px; font-weight: 500; z-index: 50; max-width: calc(100% - 32px); box-shadow: var(--sheet-shadow); }

/* privacy 등 하위 문서 */
.doc { padding: 28px 0 8px; }
.doc h1 { font-family: var(--display); font-size: 28px; letter-spacing: -.02em; margin: 0 0 12px; }

@media (min-width: 720px) {
  .stats { grid-template-columns: repeat(4, 1fr); }
  .t10 { grid-template-columns: 1fr 1fr; }
  .toplist { grid-template-columns: repeat(5, 1fr); }
  .opts { grid-template-columns: 180px 220px 1fr; }
  .opts .btn-main { grid-column: auto; }
}
@media (min-width: 900px) {
  .hero { padding: 48px 0 12px; }
  .hero-grid { grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 40px; align-items: end; }
  .name-field input { font-size: 48px; height: 84px; }
}
@media (max-width: 360px) {
  .opts { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
}
.how td:nth-child(2) { white-space: normal; min-width: 140px; }