/* SPDX-License-Identifier: Apache-2.0 */
/* SPDX-FileCopyrightText: 2026 The 25-ji-code-de Team */

:root {
  color-scheme: dark;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sekai-space-lg);
  padding: 0 clamp(16px, 4vw, 48px);
  border-bottom: var(--sekai-hairline-divider);
  background: rgb(var(--sekai-surface) / 0.88);
  backdrop-filter: blur(16px);
}

.site-nav__brand {
  color: rgb(var(--sekai-fg));
  font-weight: var(--sekai-weight-bold);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: clamp(8px, 2vw, 24px);
}

.site-nav__links a {
  position: relative;
  padding: 18px 0 16px;
  color: rgb(var(--sekai-fg-muted));
  font-size: var(--sekai-text-sm);
  text-decoration: none;
  transition: color var(--sekai-dur);
}

.site-nav__links a:hover,
.site-nav__links a[aria-current="page"] {
  color: rgb(var(--sekai-fg));
}

.site-nav__links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  background: rgb(var(--sekai-accent));
}

.site-page {
  min-height: 100vh;
  margin: 0;
  background: rgb(var(--sekai-canvas));
  color: rgb(var(--sekai-fg));
}

.site-main {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(72px, 10vw, 120px) 0 96px;
}

.site-hero {
  max-width: 720px;
  margin-bottom: clamp(48px, 8vw, 96px);
}

.site-hero h1 {
  margin: var(--sekai-space-md) 0 var(--sekai-space-lg);
  font-size: clamp(32px, 6vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.site-hero p {
  max-width: 52ch;
  margin: 0;
  color: rgb(var(--sekai-fg-muted));
  font-size: var(--sekai-text-xl);
  line-height: 1.75;
}

.site-section {
  margin-top: clamp(56px, 8vw, 96px);
}

.site-section__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--sekai-space-lg);
  margin-bottom: var(--sekai-space-2xl);
  padding-bottom: var(--sekai-space-md);
  border-bottom: var(--sekai-hairline-divider);
}

.site-section__head h2 {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
}

.site-section__head p {
  margin: 0;
  color: rgb(var(--sekai-fg-muted));
  font-size: var(--sekai-text-sm);
}

.explore {
  padding-bottom: 16vh;
}

.explore-grid,
.tool-grid,
.component-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--sekai-space-lg);
  margin-top: var(--sekai-space-2xl);
}

.explore-card,
.tool-card {
  min-height: 150px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--sekai-space-sm);
  padding: var(--sekai-space-xl);
  border: var(--sekai-hairline);
  border-radius: var(--sekai-radius-panel);
  background: rgb(var(--sekai-surface-card));
  color: rgb(var(--sekai-fg));
  text-decoration: none;
  box-shadow: 0 2px 4px rgb(0 0 0 / 0.1);
}

.explore-card strong,
.tool-card strong {
  font-size: var(--sekai-text-xl);
}

.explore-card > span:last-child,
.tool-card > span:last-child {
  color: rgb(var(--sekai-fg-muted));
  font-size: var(--sekai-text-sm);
  line-height: 1.6;
}

.token-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sekai-space-md);
  margin-bottom: var(--sekai-space-xl);
}

.token-toolbar .sekai-input {
  flex: 1 1 260px;
}

.token-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--sekai-space-md);
}

.token-card {
  overflow: hidden;
  border: var(--sekai-hairline);
  border-radius: var(--sekai-radius-panel);
  background: rgb(var(--sekai-surface-card));
}

.token-card__swatch {
  height: 80px;
  border-bottom: var(--sekai-hairline);
  background-color: rgb(var(--token-rgb, var(--sekai-surface)));
}

.token-card__body {
  display: grid;
  gap: 4px;
  padding: var(--sekai-space-md);
}

.token-card code {
  color: rgb(var(--sekai-fg));
  font-family: var(--sekai-font-mono);
  font-size: var(--sekai-text-sm);
  overflow-wrap: anywhere;
}

.token-card__value {
  color: rgb(var(--sekai-fg-muted));
  font-family: var(--sekai-font-mono);
  font-size: var(--sekai-text-micro);
}

.component-stage {
  min-height: 180px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--sekai-space-lg);
  padding: clamp(24px, 5vw, 48px);
  border: var(--sekai-hairline);
  border-radius: var(--sekai-radius-panel);
  background: rgb(var(--sekai-surface) / 0.55);
}

.component-stage--column {
  flex-direction: column;
  align-items: stretch;
}

.component-stage > .sekai-card,
.component-stage > .sekai-alert,
.component-stage > .sekai-field {
  width: min(100%, 360px);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sekai-space-lg);
  padding: 28px clamp(16px, 4vw, 48px);
  border-top: var(--sekai-hairline-divider);
  background: rgb(var(--sekai-surface));
}

.site-footer__links {
  display: flex;
  gap: var(--sekai-space-lg);
}

.site-footer a {
  color: rgb(var(--sekai-fg-muted));
  font-size: var(--sekai-text-sm);
  text-decoration: none;
}

.site-footer a:hover {
  color: rgb(var(--sekai-fg));
}

.site-page .worlds {
  position: fixed;
  right: var(--sekai-space-lg);
  bottom: var(--sekai-space-lg);
  z-index: 900;
  display: flex;
  gap: var(--sekai-space-sm);
  padding: var(--sekai-space-sm);
  border: var(--sekai-hairline);
  border-radius: var(--sekai-radius-lg);
  background: rgb(var(--sekai-surface-raised) / 0.9);
  backdrop-filter: blur(12px);
  box-shadow: var(--sekai-elev-3);
}

@media (max-width: 640px) {
  .site-nav {
    min-height: auto;
    align-items: flex-start;
    padding-top: 14px;
    padding-bottom: 12px;
  }

  .site-nav__brand {
    padding-top: 4px;
  }

  .site-nav__links {
    max-width: 220px;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 4px 14px;
  }

  .site-nav__links a {
    padding: 4px 0;
  }

  .site-section__head,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-page .worlds {
    right: 12px;
    bottom: 12px;
  }
}