:root {
  --bg: #0b0b10;
  --bg2: #121219;
  --text: #e8e8ee;
  --muted: #b6b6c7;
  --accent: #6aa9ff;
  --card: #151523;
  --stroke: #26263a;
  --maxw: 1000px;
  --radius: 16px;
  --pad: 18px;
  --header-h: 56px;   /* site header height */
  --hero-h: 240px;    /* hero section height */
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f7fb;
    --bg2: #ffffff;
    --text: #171722;
    --muted: #57576a;
    --accent: #2b6cff;
    --card: #ffffff;
    --stroke: #e5e7ef;
  }
}

* {
  box-sizing: border-box
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
  background: var(--bg);
  color: var(--text)
}

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

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 16px;
}

header {
  position: sticky;
  top: 0;
  z-index: 10000;
  isolation: isolate;
  backdrop-filter: saturate(180%) blur(8px);
  background: color-mix(in oklab, var(--bg2) 80%, transparent);
  border-bottom: 1px solid var(--stroke);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
}

.menu {
  display: flex;
  gap: 12px;
  align-items: center
}

.menu a {
  padding: 8px 10px;
  border-radius: 10px;
  color: var(--text)
}

.menu a:hover {
  background: var(--stroke)
}

.menu-btn {
  display: none;
}

@media (max-width: 760px) {
  .menu {
    display: none
  }

  .menu.open {
    display: flex;
    position: absolute;
    inset-inline: 16px;
    top: 54px;
    background: var(--bg2);
    border: 1px solid var(--stroke);
    border-radius: 12px;
    flex-direction: column;
    padding: 8px
  }

  .menu a {
    padding: 10px 12px
  }

  .menu-btn {
    display: inline-grid;
    place-items: center;
    inline-size: 36px;
    block-size: 36px;
    border: 1px solid var(--stroke);
    border-radius: 10px;
    background: var(--bg2);
    color: var(--text)
  }
}

h1,
h2,
h3 {
  line-height: 1.2
}

.hero {
  padding: 56px 0 18px
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px
}

@media (max-width: 960px) {
  .grid {
    grid-template-columns: repeat(2, 1fr)
  }
}

@media (max-width: 640px) {
  .grid {
    grid-template-columns: 1fr
  }
}

.card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card .thumb {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, color-mix(in oklab, var(--accent), black 30%), transparent), radial-gradient(40% 60% at 30% 20%, color-mix(in oklab, var(--accent), white 40%), transparent);
}

.card .body {
  padding: var(--pad);
  display: flex;
  flex-direction: column;
  gap: 8px
}

.thumb-img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--card);
}
.cover img {
  width: 100%;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--stroke);
}

.tag {
  font: 500 12px/1.6 system-ui;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  color: var(--muted)
}

.row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap
}

.grow {
  flex: 1 1 320px
}

.box {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  padding: var(--pad)
}

footer {
  padding: 40px 0;
  color: var(--muted);
  border-top: 1px solid var(--stroke);
  margin-top: 24px
}

.btn {
  display: inline-block;
  border: 1px solid var(--stroke);
  background: var(--bg2);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px
}

.btn:hover {
  background: var(--stroke)
}

.fine {
  font-size: 12px;
  color: var(--muted)
}

.story-box {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  padding: var(--pad);
  width: 100%;
}

.story-header {
  margin-bottom: 1.5rem;
  position: static;
}

.story-cover {
  margin: 0.8rem 0 0;
  border-radius: var(--radius);
  border: 1px solid var(--stroke);
  overflow: hidden;
}

.story-cover img {
  display: block;
  width: 100%;
}

/* Give content a little breathing room under the sticky header */
main.wrap { position: relative; z-index: 0; }
.hero { padding-top: 24px; }  /* was 56px 0 18px; a touch more top space helps */