/* TOKIDOKEI 公式サイト 共通スタイル */
:root {
  --bg: #0F0F17;
  --surface: #1A1A24;
  --surface-2: #20202C;
  --frost: #F2F2F7;
  --frost-dim: rgba(242, 242, 247, 0.55);
  --frost-faint: rgba(242, 242, 247, 0.28);
  --crystal: #6FD3D1;
  --candle: #E8B266;
  --dusk: #D26A66;
  --video: #6CA3E0;
  --game: #9C7BD8;
  --indigo: #2C2C46;
  --max-content: 760px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--frost);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--crystal);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  padding: 14px 24px;
  border-bottom: 1px solid var(--surface-2);
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-content);
  margin: 0 auto;
}

header .brand a {
  display: inline-block;
  line-height: 0;
}

header .brand img {
  height: 28px;
  width: auto;
  display: block;
}

header nav a {
  margin-left: 16px;
  font-size: 13px;
  color: var(--frost-dim);
}

header nav a:hover {
  color: var(--frost);
  text-decoration: none;
}

main {
  padding: 24px 24px 56px;
  max-width: var(--max-content);
  margin: 0 auto;
}

.hero {
  padding: 32px 0 24px;
  text-align: center;
}

.hero h1 {
  margin: 0 0 14px;
  line-height: 0;
}

.hero h1 img {
  height: 84px;
  width: auto;
  max-width: 100%;
}

.hero .tagline {
  font-size: 16px;
  color: var(--frost-dim);
  margin: 0 0 14px;
}

.hero p:not(.tagline) {
  margin: 0 auto;
  max-width: 520px;
}

.hero .stores {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 28px;
}

.store-button {
  display: inline-block;
  padding: 12px 22px;
  background: var(--surface-2);
  color: var(--frost);
  border-radius: 12px;
  font-size: 13px;
  border: 1px solid rgba(242, 242, 247, 0.06);
}

.store-button:hover {
  background: var(--surface);
  text-decoration: none;
}

.store-button.disabled {
  color: var(--frost-faint);
  cursor: default;
}

section {
  margin: 36px 0;
}

section h2 {
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 0.04em;
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--surface-2);
}

section h3 {
  font-size: 16px;
  font-weight: 500;
  margin: 28px 0 8px;
  color: var(--crystal);
}

section p, section li {
  color: var(--frost-dim);
}

section li {
  margin: 4px 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.feature-card {
  background: var(--surface);
  padding: 20px;
  border-radius: 14px;
  border: 1px solid rgba(242, 242, 247, 0.05);
}

.feature-card h3 {
  margin: 0 0 6px;
  color: var(--frost);
  font-size: 15px;
}

.feature-card p {
  margin: 0;
  font-size: 13px;
  color: var(--frost-dim);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--surface-2);
  font-size: 14px;
  vertical-align: top;
}

th {
  color: var(--frost);
  font-weight: 500;
  width: 32%;
}

td {
  color: var(--frost-dim);
}

code {
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

footer {
  border-top: 1px solid var(--surface-2);
  padding: 24px;
  text-align: center;
  color: var(--frost-faint);
  font-size: 12px;
}

footer a {
  color: var(--frost-dim);
  margin: 0 8px;
}

.lang-switch {
  font-size: 12px;
  color: var(--frost-faint);
}

.lang-switch a {
  margin-left: 8px;
}

@media (max-width: 480px) {
  .hero { padding: 20px 0 16px; }
  .hero h1 img { height: 64px; }
  header .brand img { height: 24px; }
  main { padding: 18px 18px 48px; }
  section { margin: 28px 0; }
}