/* O-Dash の入口（odash.jp）。色は各サービス（creative checker・Tutorial Maker）の globals.css と同じ */
:root {
  --bg: #0b0e14;
  --surface: #121722;
  --navy: #f4f6fa;
  --ink: #dfe4ee;
  --muted: #9aa3b2;
  --line: #232a36;
  --warn-bg: rgba(255, 120, 120, 0.1);
  --warn-ink: #ff9b9b;
  --grad-review: linear-gradient(90deg, #7c8cff, #49d3c6);
  --grad-tutorial: linear-gradient(90deg, #f4e52f, #5bbf71);
  --grad-rainbow: linear-gradient(90deg, #e33a4f, #f7802f, #ecc91a, #3fa95c, #1f8fc4, #77388e);
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #f3f5fa;
    --surface: #ffffff;
    --navy: #0f1626;
    --ink: #273044;
    --muted: #5b6475;
    --line: #e0e5ef;
    --warn-bg: rgba(220, 60, 60, 0.07);
    --warn-ink: #c03a3a;
    --grad-review: linear-gradient(90deg, #4f5fe8, #1fa89b);
    --grad-tutorial: linear-gradient(90deg, #b9aa12, #3f9a57);
    color-scheme: light;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.8;
  overflow-x: hidden;
}
a { color: inherit; }
.wrap { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* ヘッダー */
.top { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; }
.word { display: inline-flex; align-items: baseline; font-weight: 700; letter-spacing: 0.01em; line-height: 1; color: var(--navy); text-decoration: none; font-family: Inter, sans-serif; }
.word svg { width: 1em; height: 1em; position: relative; top: 0.058em; margin-right: -0.17em; flex-shrink: 0; }
.top .word { font-size: 22px; }

/* 最初の画面 */
.hero { padding: 72px 0 40px; text-align: center; }
.hero .word { font-size: clamp(64px, 14vw, 132px); }
.hero .rule { width: 120px; height: 3px; margin: 34px auto 26px; border-radius: 3px; background: var(--grad-rainbow); }
.hero h1 { margin: 0; font-size: clamp(20px, 3.2vw, 28px); font-weight: 700; color: var(--navy); line-height: 1.6; }
.hero p { margin: 14px auto 0; max-width: 34em; color: var(--muted); font-size: 15px; }

/* サービス */
.services { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; padding: 40px 0 80px; }
.svc { display: flex; flex-direction: column; padding: 30px 28px 28px; border-radius: 18px; background: var(--surface); border: 1px solid var(--line); text-decoration: none; transition: transform 0.25s ease, border-color 0.25s ease; position: relative; overflow: hidden; }
.svc:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--muted) 50%, transparent); }
.svc::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 3px; background: var(--g); }
.svc.review { --g: var(--grad-review); }
.svc.tutorial { --g: var(--grad-tutorial); }
.svc .word { font-size: 30px; }
.svc .sub { margin-top: 10px; font-size: 11px; font-weight: 600; letter-spacing: 0.42em; text-transform: uppercase; font-family: Inter, sans-serif; background: var(--g); -webkit-background-clip: text; background-clip: text; color: transparent; }
.svc h2 { margin: 22px 0 6px; font-size: 18px; color: var(--navy); line-height: 1.6; }
.svc p { margin: 0; color: var(--muted); font-size: 14px; flex: 1; }
.svc .go { margin-top: 22px; font-size: 13px; font-weight: 600; color: var(--navy); font-family: Inter, "Noto Sans JP", sans-serif; }

/* 規約類 */
.doc { max-width: 760px; padding: 24px 0 96px; }
.doc .draft { margin: 8px 0 0; padding: 8px 14px; border-radius: 10px; background: var(--warn-bg); color: var(--warn-ink); font-size: 12px; font-weight: 600; }
.doc h1 { margin: 28px 0 0; font-size: 26px; color: var(--navy); line-height: 1.5; }
.doc .updated { margin: 4px 0 0; font-size: 12px; color: var(--muted); }
.doc h2 { margin: 36px 0 8px; font-size: 16px; color: var(--navy); }
.doc p, .doc li { font-size: 14px; line-height: 1.9; }
.doc ul, .doc ol { padding-left: 1.4em; }
.doc table { width: 100%; border-collapse: collapse; font-size: 13px; }
.doc th, .doc td { padding: 10px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.doc th { width: 34%; color: var(--navy); }

/* フッター */
.foot { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: 12px; color: var(--muted); }
.foot nav { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-bottom: 10px; }
.foot a { color: var(--muted); }