:root {
  color-scheme: light;

  --bg: #fdf9f4;
  --surface: #ffffff;
  --surface-alt: #f7eee2;
  --text: #241d17;
  --text-muted: #6e6155;
  --line: #ecdfcd;
  --line-strong: #ddc7a8;

  --accent: #bf4917;
  --accent-strong: #9c3c12;
  --accent-soft: #fbe4d5;
  --accent-contrast: #ffffff;

  --tag-tool-bg: #e1f3ec;
  --tag-tool-text: #0f7a5c;
  --tag-game-bg: #f5e3fb;
  --tag-game-text: #8b2fb8;

  --radius-lg: 1.1rem;
  --radius-md: 0.7rem;
  --shadow-card: 0 1px 2px rgba(36, 29, 23, 0.05);
  --shadow-card-hover: 0 16px 28px -14px rgba(36, 29, 23, 0.28);

  --font-sans: -apple-system, "Segoe UI", system-ui, Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;

    --bg: #1c1712;
    --surface: #26201a;
    --surface-alt: #2d251d;
    --text: #f6efe6;
    --text-muted: #c2b3a0;
    --line: #3a3025;
    --line-strong: #4d4030;

    --accent: #ff9a5a;
    --accent-strong: #ffb385;
    --accent-soft: #3a2418;
    --accent-contrast: #1c1712;

    --tag-tool-bg: #123a2c;
    --tag-tool-text: #6fe2bd;
    --tag-game-bg: #3a2140;
    --tag-game-text: #e3a6fb;

    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-card-hover: 0 18px 32px -16px rgba(0, 0, 0, 0.6);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

body.no-scroll {
  overflow: hidden;
}

a {
  color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 0.25rem;
}

.shell {
  width: min(100%, 68rem);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */

.site-header {
  border-bottom: 1px solid var(--line);
}

.site-header .shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
  flex-wrap: wrap;
}

.brand-mark {
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}

.brand-mark:hover {
  color: var(--accent);
}

.site-nav {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

.site-nav a {
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--text);
  background: var(--surface-alt);
}

.site-nav a[aria-current="page"] {
  color: var(--accent);
  background: var(--accent-soft);
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 4rem;
}

.site-footer .shell {
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.site-footer nav {
  display: flex;
  gap: 1.25rem;
}

.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent);
}

/* Main content */

main.shell {
  padding-top: 3rem;
  padding-bottom: 4rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font: 700 0.75rem/1.4 var(--font-sans);
}

h1 {
  margin: 0;
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.lead {
  max-width: 40rem;
  margin: 1rem 0 0;
  font: 400 1.1rem/1.65 var(--font-sans);
  color: var(--text-muted);
}

/* Icon badges (shared by home, cards and the details panel) */

.icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-lg);
}

.icon-badge.lg {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 1.25rem;
}

.icon-badge.tool {
  background: var(--tag-tool-bg);
}

.icon-badge.game {
  background: var(--tag-game-bg);
}

.icon-glyph {
  display: block;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--icon) center / contain no-repeat;
}

.icon-badge.lg .icon-glyph {
  width: 3.25rem;
  height: 3.25rem;
}

.icon-badge.tool .icon-glyph {
  color: var(--tag-tool-text);
}

.icon-badge.game .icon-glyph {
  color: var(--tag-game-text);
}

/* Portal cards (home) */

.portal-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  margin-top: 2.5rem;
}

.portal-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
  box-shadow: var(--shadow-card);
  transition: transform 150ms ease, box-shadow 150ms ease, border-color 150ms ease;
}

.portal-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--line-strong);
}

.portal-card .icon-badge {
  margin-bottom: 0.25rem;
}

.portal-card .eyebrow {
  margin-bottom: 0;
}

.portal-card strong {
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}

.portal-card span.desc {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.portal-card .go {
  margin-top: auto;
  padding-top: 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--accent);
}

.portal-card:hover .go {
  color: var(--accent-strong);
}

/* Listing sections (tools / games) */

.grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  min-height: 8rem;
  box-shadow: var(--shadow-card);
  transition: transform 150ms ease, box-shadow 150ms ease, border-color 150ms ease;
}

.card > .icon-badge {
  width: 100%;
  height: 9rem;
  margin-bottom: 0.35rem;
  border-radius: 0.9rem;
}

.card > .icon-badge .icon-glyph {
  width: 6rem;
  height: 6rem;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--line-strong);
}

.tag {
  align-self: flex-start;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font: 700 0.7rem/1.4 var(--font-sans);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tag.tool {
  background: var(--tag-tool-bg);
  color: var(--tag-tool-text);
}

.tag.game {
  background: var(--tag-game-bg);
  color: var(--tag-game-text);
}

.card strong {
  font-size: 1.15rem;
  line-height: 1.35;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.card-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: auto;
  padding-top: 0.75rem;
}

.btn-primary {
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  color: var(--accent-contrast);
  font: 700 0.88rem/1.2 var(--font-sans);
  text-decoration: none;
  cursor: pointer;
  transition: background 150ms ease, transform 150ms ease;
}

.btn-primary:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

.btn-details {
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text-muted);
  font: 700 0.85rem/1.2 var(--font-sans);
  cursor: pointer;
  transition: color 150ms ease, border-color 150ms ease, background 150ms ease;
}

.btn-details:hover {
  color: var(--text);
  background: var(--surface-alt);
  border-color: var(--line-strong);
}

code {
  padding: 0.15rem 0.35rem;
  border-radius: 0.35rem;
  background: var(--surface-alt);
  font-size: 0.9em;
}

/* Details panel */

.details-overlay {
  position: fixed;
  inset: 0;
  background: rgba(28, 20, 12, 0.45);
  opacity: 0;
  transition: opacity 200ms ease;
  z-index: 40;
}

.details-overlay.is-open {
  opacity: 1;
}

.details-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(26rem, 92vw);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: 2rem 1.75rem 2.25rem;
  background: var(--surface);
  border-left: 1px solid var(--line);
  box-shadow: -16px 0 40px -20px rgba(28, 20, 12, 0.4);
  transform: translateX(100%);
  transition: transform 220ms ease;
  overflow-y: auto;
  z-index: 41;
}

.details-panel.is-open {
  transform: translateX(0);
}

.details-close {
  align-self: flex-end;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-alt);
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
}

.details-close:hover {
  color: var(--text);
  border-color: var(--line-strong);
}

.details-panel h2 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
}

.details-desc {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.55;
}

.details-context {
  margin: 0;
  padding-top: 0.4rem;
  border-top: 1px solid var(--line);
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.details-cta {
  align-self: flex-start;
  margin-top: 0.5rem;
}

@media (max-width: 640px) {
  main.shell {
    padding-top: 2rem;
  }

  .site-footer .shell {
    justify-content: flex-start;
  }

  .details-panel {
    width: 100vw;
    padding: 1.5rem 1.25rem 2rem;
  }
}