:root {
  --bg: #0b0d10;
  --surface: #14171c;
  --surface-2: #1b1f26;
  --text: #e8eaed;
  --muted: #8a919b;
  --accent: #3ecf8e;
  --accent-2: #f2a65a;
  --line: #262b33;
  --radius: 10px;
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.mono { font-family: var(--font-mono); }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  background: rgba(11, 13, 16, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  display: flex; align-items: center; gap: 20px;
  padding: 16px 28px; max-width: 1400px; margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 8px; font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; }
.brand-mark { color: var(--accent); font-size: 1.3rem; line-height: 1; }
.search-wrap { flex: 1; max-width: 420px; }
.search-input {
  width: 100%; padding: 10px 14px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--surface); color: var(--text);
  font-family: var(--font-body); font-size: 0.9rem; outline: none;
}
.search-input:focus { border-color: var(--accent); }
.nav-list { display: flex; gap: 18px; list-style: none; margin: 0; padding: 0; font-size: 0.88rem; color: var(--muted); }
.nav-list a:hover { color: var(--text); }

.ghost-btn, .primary-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 18px; border-radius: 8px; font-weight: 600; font-size: 0.88rem;
  cursor: pointer; border: 1px solid var(--line);
}
.ghost-btn { background: transparent; color: var(--text); }
.ghost-btn:hover { border-color: var(--accent); background: rgba(62, 207, 142, 0.08); }
.primary-btn { background: var(--accent); color: #06110c; border: none; }
.primary-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(62, 207, 142, 0.25); }

/* ---------- Hero ---------- */
.hero {
  position: relative; height: 60vh; min-height: 420px;
  background-size: cover; background-position: center;
  display: flex; align-items: flex-end;
}
.hero-scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11,13,16,0.15) 0%, rgba(11,13,16,0.4) 55%, rgba(11,13,16,0.97) 100%);
}
.hero-content { position: relative; z-index: 2; padding: 40px 28px 44px; max-width: 720px; }
.hero-eyebrow { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent-2); }
.hero-content h1 { font-family: var(--font-display); font-size: clamp(2rem, 5vw, 3.2rem); margin: 10px 0 16px; letter-spacing: -0.02em; }
.hero-meta { display: flex; gap: 10px; margin-bottom: 22px; }
.tag {
  padding: 5px 11px; border-radius: 100px; border: 1px solid var(--line);
  background: rgba(255,255,255,0.03); font-size: 0.76rem; color: var(--muted); text-transform: capitalize;
}
.tag-sm { padding: 3px 8px; font-size: 0.68rem; }

/* ---------- Filters + grid ---------- */
.filters { display: flex; gap: 8px; padding: 22px 28px 6px; max-width: 1400px; margin: 0 auto; overflow-x: auto; }
.filter-chip {
  padding: 8px 16px; border-radius: 100px; border: 1px solid var(--line);
  background: var(--surface); color: var(--muted); font-size: 0.82rem; font-weight: 500; white-space: nowrap;
}
.filter-chip:hover { color: var(--text); border-color: var(--accent); }
.filter-chip.active { background: var(--accent); border-color: var(--accent); color: #06110c; }

.grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px;
  padding: 18px 28px 60px; max-width: 1400px; margin: 0 auto;
}
.card {
  position: relative; display: block; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 16 / 10; background: var(--surface); border: 1px solid var(--line);
}
.card img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.35s ease; }
.card:hover img { transform: scale(1.05); }
.card-overlay {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 14px; background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.85) 100%);
  opacity: 0; transition: opacity 0.2s ease;
}
.card:hover .card-overlay { opacity: 1; }
.card-title { font-family: var(--font-display); font-weight: 600; font-size: 1rem; margin-bottom: 6px; }
.card-footer { display: flex; align-items: center; justify-content: space-between; }
.card-res { font-family: var(--font-mono); font-size: 0.68rem; color: var(--muted); }

.page-heading { max-width: 1400px; margin: 30px auto 0; padding: 0 28px; }
.page-heading h1 { font-family: var(--font-display); font-size: 2rem; }

.empty-state { text-align: center; padding: 80px 20px; color: var(--muted); grid-column: 1 / -1; }

/* ---------- Single wallpaper page ---------- */
.single-wallpaper {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px;
  max-width: 1400px; margin: 0 auto; padding: 32px 28px;
}
.single-preview img {
  width: 100%; border-radius: var(--radius); border: 1px solid var(--line); display: block;
}
.single-info h1 { font-family: var(--font-display); font-size: 1.9rem; margin: 0 0 14px; }
.single-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.single-description { color: var(--muted); margin-bottom: 24px; line-height: 1.6; }

.download-picker h2 { font-family: var(--font-display); font-size: 1rem; margin-bottom: 4px; }
.download-hint { color: var(--muted); font-size: 0.78rem; margin: 0 0 12px; }
.device-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.device-option {
  display: flex; flex-direction: column; gap: 4px; padding: 14px 16px;
  border: 1px solid var(--line); border-radius: 8px; background: var(--surface);
}
.device-option:hover { border-color: var(--accent); background: rgba(62, 207, 142, 0.06); }
.device-label { font-weight: 600; font-size: 0.9rem; }
.device-dims { color: var(--muted); font-size: 0.72rem; }

.related { max-width: 1400px; margin: 10px auto 40px; padding: 0 28px; }
.related h2 { font-family: var(--font-display); font-size: 1.3rem; margin-bottom: 16px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); margin-top: 20px; }
.site-footer-inner {
  max-width: 1400px; margin: 0 auto; padding: 20px 28px 32px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  color: var(--muted); font-size: 0.78rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .single-wallpaper { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .topbar-inner { flex-wrap: wrap; padding: 14px 16px; }
  .search-wrap { order: 3; max-width: 100%; }
  .hero-content { padding: 28px 18px 32px; }
  .filters, .grid, .single-wallpaper, .related, .page-heading { padding-left: 16px; padding-right: 16px; }
  .device-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* Only show focus rings when navigating by keyboard */
body:not(.kb-focus) *:focus { outline: none; }
body.kb-focus *:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }