/* AIチェック — 画面の見た目。
   顔面偏差値API・街の偏差値API と同じ枠（左メニュー＋右が中身）にそろえてある。
   変数名と部品の名前もそろえているので、あちらを直すときと同じ勘で触れる。
   サービスごとに変えるのは色（--accent）だけ。 */

:root {
  color-scheme: light dark;
  --bg: #f6f7f9; --side: #ffffff; --card: #ffffff; --hover: #f0f2f5;
  --ink: #1b1f24; --ink-2: #4a525c; --ink-3: #7a838e; --line: #e3e6ea;
  --accent: #0f766e; --accent-ink: #ffffff; --accent-soft: #e6f4f2;
  --warn: #b54708; --warn-soft: #fff4e5; --err: #c0262d; --err-soft: #fdecec;
  --ok: #2e7d5b;
  --code-bg: #0f1720; --code-ink: #e6edf3; --shadow: 0 1px 2px rgba(16,24,40,.04);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117; --side: #11161d; --card: #161b22; --hover: #1c232c;
    --ink: #e6edf3; --ink-2: #b1bac4; --ink-3: #8b949e; --line: #2a313a;
    --accent: #4dd0c4; --accent-ink: #08201e; --accent-soft: #132b28;
    --warn: #f0a44b; --warn-soft: #2b1d0e; --err: #ff7b72; --err-soft: #2d1415;
    --ok: #6ee7b7;
    --code-bg: #0a0d12; --code-ink: #e6edf3; --shadow: none;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.75 -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Yu Gothic", sans-serif;
}
a { color: var(--accent); }

/* ---- 枠 ---- */
.shell { display: grid; grid-template-columns: 264px minmax(0, 1fr); min-height: 100vh; }
.side {
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  background: var(--side); border-right: 1px solid var(--line);
  display: flex; flex-direction: column; padding: 18px 12px 14px;
}
.brand { display: flex; gap: 10px; align-items: center; color: var(--ink); text-decoration: none; padding: 4px 10px 10px; }
.brand .mark {
  width: 34px; height: 34px; flex: none; border-radius: 9px;
  background: linear-gradient(135deg, #0f766e, #3b82f6);
  display: grid; place-items: center; color: #fff; font-size: 17px;
}
.brand b { display: block; font-size: 15px; line-height: 1.3; }
.brand small { display: block; font-size: 11px; color: var(--ink-3); letter-spacing: .06em; line-height: 1.3; }
.nav-group { font-size: 11px; font-weight: 700; letter-spacing: .08em; color: var(--ink-3); padding: 16px 10px 4px; }
.nav a { display: block; padding: 6px 10px; margin: 1px 0; border-radius: 7px; color: var(--ink-2); text-decoration: none; font-size: 14px; line-height: 1.5; }
.nav a:hover { background: var(--hover); color: var(--ink); }
.nav a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.side-foot { margin-top: auto; padding: 14px 10px 0; border-top: 1px solid var(--line); font-size: 12px; color: var(--ink-3); }
.side-foot .who { color: var(--ink-2); font-size: 13px; overflow-wrap: anywhere; margin-bottom: 8px; }
.side-foot a { color: var(--ink-3); }
.side .side-close { display: none; }
.main { min-width: 0; }
.topbar { display: none; }
.content { padding: 40px 56px 72px; }
.backdrop { display: none; }

@media (max-width: 880px) {
  .shell { display: block; }
  .topbar {
    display: flex; position: sticky; top: 0; z-index: 20;
    align-items: center; justify-content: space-between; gap: 8px;
    padding: 8px 16px; background: var(--side); border-bottom: 1px solid var(--line);
  }
  .topbar .brand { padding: 0; }
  .side {
    position: fixed; z-index: 40; left: 0; top: 0; bottom: 0;
    width: min(300px, 84vw); height: auto;
    transform: translateX(-100%); visibility: hidden;
    transition: transform .2s ease, visibility .2s;
  }
  .side .side-close { display: block; position: absolute; right: 10px; top: 16px; }
  body.nav-open .side { transform: none; visibility: visible; box-shadow: 0 10px 40px rgba(0,0,0,.3); }
  body.nav-open .backdrop { display: block; position: fixed; inset: 0; z-index: 30; background: rgba(0,0,0,.45); }
  .content { padding: 24px 16px 56px; }
}

/* ---- 中身の部品（既存サービスと同じ名前）---- */
.page-head { margin-bottom: 24px; }
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .06em; color: var(--accent); }
h1 { font-size: 28px; line-height: 1.35; margin: 4px 0 8px; }
h2 { font-size: 18px; line-height: 1.4; margin: 0 0 12px; }
h3 { font-size: 15px; margin: 22px 0 8px; }
.lead { color: var(--ink-2); margin: 0; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 22px; margin: 0 0 16px; box-shadow: var(--shadow); }
.card > :last-child { margin-bottom: 0; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-bottom: 16px; }
.grid2 > .card { margin: 0; }
.muted { color: var(--ink-3); font-size: 13px; }

.plan { border: 1px solid var(--line); border-radius: 10px; padding: 18px; }
.plan.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.plan .price { font-size: 24px; font-weight: 700; line-height: 1.4; }
.plan .price span { font-size: 13px; font-weight: 400; color: var(--ink-3); margin-left: 4px; }

.steps { list-style: none; counter-reset: step; padding: 0; margin: 0 0 18px; display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
.steps li { counter-increment: step; border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.steps li::before { content: counter(step); display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-size: 12px; font-weight: 700; margin-bottom: 6px; }
.steps b { display: block; }
.steps span { display: block; color: var(--ink-3); font-size: 13px; line-height: 1.6; }

.checks { list-style: none; padding: 0; margin: 0; }
.checks li { padding-left: 22px; position: relative; margin: 4px 0; }
.checks li::before { content: ""; position: absolute; left: 2px; top: .62em; width: 10px; height: 6px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }

.btn { display: inline-block; border: 0; border-radius: 8px; padding: 10px 16px; font: inherit; font-weight: 600; line-height: 1.4; cursor: pointer; text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-ghost { background: transparent; color: var(--ink-2); border: 1px solid var(--line); }
.btn-small { padding: 5px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.row { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; }
.kv { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 6px 12px; margin: 0; }
.kv dt { color: var(--ink-3); font-size: 13px; padding-top: 2px; }
.kv dd { margin: 0; overflow-wrap: anywhere; }
@media (max-width: 520px) {
  .content .kv { grid-template-columns: 1fr; gap: 0; }
  .content .kv dt { padding-top: 10px; }
  .content .kv dt:first-child { padding-top: 0; }
}

.bar { height: 8px; background: var(--line); border-radius: 99px; overflow: hidden; margin-top: 6px; }
.bar > span { display: block; height: 100%; background: var(--accent); }
.badge { display: inline-block; font-size: 12px; font-weight: 700; padding: 1px 8px; border-radius: 99px; background: var(--accent-soft); color: var(--accent); }
.badge.free { background: var(--hover); color: var(--ink-2); }

.notice { border-radius: 10px; padding: 12px 14px; margin: 0 0 16px; }
.notice.ok { background: var(--accent-soft); }
.notice.warn { background: var(--warn-soft); color: var(--warn); }
.notice.err { background: var(--err-soft); color: var(--err); }

pre { background: var(--code-bg); color: var(--code-ink); border-radius: 8px; padding: 12px 14px; overflow-x: auto; font: 13px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; margin: 8px 0; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .92em; }
.keybox { display: flex; gap: 8px; align-items: stretch; flex-wrap: wrap; }
.keybox code { flex: 1 1 300px; background: var(--code-bg); color: var(--code-ink); padding: 10px 12px; border-radius: 8px; overflow-wrap: anywhere; font-size: 14px; }

.tablewrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--ink-3); font-weight: 600; font-size: 13px; }
table.fixed { table-layout: fixed; }
table.fixed th { width: 46%; font-weight: 400; }
table.fixed td { overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }

.input { width: 100%; font: inherit; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 9px 12px; line-height: 1.6; }
.form .field { margin-bottom: 16px; }
.form label { display: block; font-size: 13px; font-weight: 600; color: var(--ink-2); margin-bottom: 6px; }

/* ---- 判定の画面 ---- */
#drop {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 48px 20px; background: var(--card);
  border: 2px dashed var(--line); border-radius: 12px;
  cursor: pointer; text-align: center; transition: border-color .15s;
}
#drop:hover, #drop:focus-visible, #drop.over { border-color: var(--accent); }
#drop:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.drop-icon { font-size: 28px; color: var(--accent); line-height: 1; }
.drop-main { font-weight: 600; }
.drop-sub { color: var(--ink-3); font-size: 13px; }

#status { display: flex; align-items: center; gap: 12px; padding: 32px 0; }
.spinner { width: 20px; height: 20px; border: 3px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

#image-stack { position: relative; display: inline-block; line-height: 0; }
#preview { max-width: 100%; max-height: 300px; border-radius: 10px; border: 1px solid var(--line); }
#heatmap { position: absolute; inset: 0; width: 100%; height: 100%; border-radius: 10px; opacity: 0; transition: opacity .25s; pointer-events: none; }
#heat-toggle { display: flex; align-items: center; gap: 7px; margin-top: 10px; color: var(--ink-3); font-size: 13px; cursor: pointer; }

#verdict-card { border-left: 4px solid var(--ink-3); }
#verdict-card.ai, #verdict-card.likely_ai { border-left-color: var(--err); }
#verdict-card.likely_real { border-left-color: var(--ok); }
#verdict-card.partial, #verdict-card.uncertain, #verdict-card.unknown { border-left-color: var(--warn); }
#verdict-label { margin: 0; font-size: 20px; font-weight: 700; line-height: 1.4; }
#verdict-note { margin: 4px 0 0; color: var(--ink-3); font-size: 13px; }
#gauge-text { margin: 10px 0 0; font-weight: 600; }
#gauge-caveat { margin: 4px 0 0; font-size: 12px; color: var(--ink-3); line-height: 1.6; }
#calc { margin: 0; padding-left: 0; list-style: none; }
#calc li { margin-bottom: 10px; }
.calc-step { display: block; color: var(--ink-3); font-size: 12px; }
.calc-body { display: block; margin: 3px 0; padding: 8px 10px; background: var(--code-bg); color: var(--code-ink); border-radius: 6px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; word-break: break-all; }
.calc-note { display: block; font-size: 12px; color: var(--ink-3); }
#clues, #reasons { margin: 0; padding-left: 1.2em; }
#clues li, #reasons li { margin-bottom: 5px; }
#numbers-wrap summary { cursor: pointer; font-size: 13px; color: var(--accent); }
#numbers h4 { margin: 14px 0 4px; font-size: 12px; color: var(--ink-3); letter-spacing: .04em; }
#gsi, .gsi { display: flex; }