/*
 * つりメモ Landing Page
 * トークンは doc/design/04-design-system.md（原典: web/src/app/demo/marine/theme.css）と同値。
 * 値を変えるときは必ず両テーマ分、かつ theme.css と揃えること。
 */

:root,
:root[data-theme="light"] {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface2: #f6f8f9;
  --line: #e9edf0;
  --ink: #111417;
  --sub: #4b5560;
  --faint: #9aa6b0;
  --primary: #1e50a2;
  --tide: #1e50a2;
  --tide-fill: rgba(30, 80, 162, 0.1);
  --hit: #e4604f;
  --entry: #2f9e77;
}

/* ダークトークンは下の :root[data-theme="dark"] と必ず同値に保つこと */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121212;
    --surface: #1a1a1a;
    --surface2: #222222;
    --line: #2b2b2b;
    --ink: #e8e8e8;
    --sub: #a5a5a5;
    --faint: #6f6f6f;
    --primary: #7da3e8;
    --tide: #7da3e8;
    --tide-fill: rgba(125, 163, 232, 0.1);
    --hit: #f0796a;
    --entry: #4bbb93;
  }
}

:root[data-theme="dark"] {
  --bg: #121212;
  --surface: #1a1a1a;
  --surface2: #222222;
  --line: #2b2b2b;
  --ink: #e8e8e8;
  --sub: #a5a5a5;
  --faint: #6f6f6f;
  --primary: #7da3e8;
  --tide: #7da3e8;
  --tide-fill: rgba(125, 163, 232, 0.1);
  --hit: #f0796a;
  --entry: #4bbb93;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.page {
  max-width: 576px; /* max-w-xl: デザインシステムのコンテンツ幅 */
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- header ---------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logotype {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.25em;
  color: var(--primary);
}

.logotype-sm {
  font-size: 9px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-link {
  font-size: 13px;
  color: var(--sub);
}

.theme-toggle {
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  color: var(--bg);
  background: var(--ink);
  border: none;
  border-radius: 999px;
  padding: 6px 14px;
  cursor: pointer;
}

/* ---------- hero ---------- */

.hero {
  text-align: center;
  padding: 52px 0 36px;
}

.hero h1 {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  text-wrap: balance;
}

.hero-sub {
  max-width: 26em;
  margin: 14px auto 0;
  font-size: 14px;
  color: var(--sub);
}

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  border: 1px solid transparent; /* 枠あり/なしで高さを揃える */
  border-radius: 999px;
  padding: 12px 26px;
  font-size: 13.5px;
  font-weight: 700;
}

.pill-black {
  background: var(--ink);
  color: var(--bg);
}

.pill-line {
  border-color: var(--line);
  color: var(--ink);
}

/* ---------- app preview ---------- */

.preview {
  display: flex;
  justify-content: center;
  padding: 8px 0 44px;
}

.phone {
  width: 270px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 16px 16px 20px;
}

.phone-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.phone-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.phone-date {
  font-size: 9px;
  color: var(--faint);
}

.stat-row {
  display: flex;
  margin-top: 12px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat-row > div {
  flex: 1;
  text-align: center;
  padding: 9px 2px 10px;
}

.stat-row > div + div {
  border-left: 1px solid var(--line);
}

.stat-row dt {
  font-size: 8px;
  color: var(--faint);
  letter-spacing: 0.08em;
}

.stat-row dd {
  margin-top: 3px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat-row dd small {
  font-size: 9px;
  font-weight: 400;
  color: var(--faint);
  margin-left: 1px;
}

.stat-row dd.stat-text {
  font-size: 12px;
  padding-top: 2px;
}

.tide-cap {
  margin-top: 13px;
  font-size: 8.5px;
  color: var(--faint);
  letter-spacing: 0.06em;
}

.tide {
  display: block;
  width: 100%;
  height: 64px;
  margin-top: 4px;
}

.tide-fill {
  fill: var(--tide-fill);
}

.tide-line {
  fill: none;
  stroke: var(--tide);
  stroke-width: 2;
}

.dot-hit-stroke {
  fill: var(--hit);
  stroke: var(--surface);
  stroke-width: 1.5;
}

.dot-entry-stroke {
  fill: var(--entry);
  stroke: var(--surface);
  stroke-width: 1.5;
}

.events {
  list-style: none;
  margin-top: 6px;
}

.event {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.event .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
}

.dot-hit {
  background: var(--hit);
}

.event-title {
  font-size: 11px;
  font-weight: 700;
}

.event-title span {
  margin-left: 6px;
  font-size: 9px;
  font-weight: 400;
  color: var(--faint);
}

.event-env {
  margin-top: 1px;
  font-size: 9px;
  color: var(--faint);
}

/* ---------- steps ---------- */

.steps ol {
  list-style: none;
  border-top: 1px solid var(--line);
}

.step {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.step:last-child {
  border-bottom: none;
}

.step-no {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
}

.step h2 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.step p {
  margin-top: 2px;
  font-size: 12.5px;
  color: var(--sub);
}

/* ---------- env strip / closing ---------- */

.env-strip {
  margin-top: 40px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: center;
  font-size: 11.5px;
  color: var(--sub);
  letter-spacing: 0.04em;
}

.env-strip b {
  color: var(--ink);
  font-weight: 500;
}

.closing-cta {
  text-align: center;
  padding: 44px 0 48px;
}

.cta-note {
  margin-top: 12px;
  font-size: 10.5px;
  color: var(--sub);
}

/* ---------- footer ---------- */

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0 28px;
  border-top: 1px solid var(--line);
}

.footer-meta {
  font-size: 10px;
  color: var(--faint);
}

/* ---------- responsive ---------- */

@media (max-width: 420px) {
  .hero h1 {
    font-size: 28px;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .theme-toggle,
  .pill {
    transition: opacity 0.15s ease;
  }

  .theme-toggle:hover,
  .pill:hover {
    opacity: 0.85;
  }
}