:root {
  --bg: #0e1014;
  --panel: #171a21;
  --panel-2: #1f232c;
  --line: #2b3140;
  --ink: #eef1f6;
  --ink-dim: #9aa3b4;
  --ink-faint: #6b7484;
  --accent: #7c4dff;
  --accent-dark: #5a2fd6;
  --radius: 14px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.55 ui-sans-serif, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* ---------- header ---------- */

.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(14, 16, 20, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.top-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 18px 24px 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  align-items: flex-end;
  justify-content: space-between;
}

.brand h1 {
  margin: 0;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.sub {
  margin: 4px 0 0;
  color: var(--ink-faint);
  font-size: 13px;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink-dim);
  border-radius: 999px;
  padding: 7px 15px;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.tab:hover { background: var(--panel-2); color: var(--ink); }

.tab[aria-selected="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.tab .n { font-size: 12px; opacity: 0.7; font-variant-numeric: tabular-nums; }

/* ---------- intro ---------- */

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 28px 24px 64px;
}

.intro { margin-bottom: 28px; }

.intro h2 {
  margin: 0 0 6px;
  font-size: 26px;
  letter-spacing: -0.02em;
}

.meta {
  margin: 0 0 14px;
  color: var(--ink-faint);
  font-size: 13px;
}

.meta code {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 6px;
  font-size: 12px;
}

.blurb {
  margin: 0 0 16px;
  max-width: 68ch;
  color: var(--ink-dim);
}

.notes {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  max-width: 78ch;
}

.notes li {
  position: relative;
  padding-left: 20px;
  color: var(--ink-dim);
  font-size: 14px;
}

.notes li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---------- grid ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 22px 20px;
}

.card {
  appearance: none;
  border: 0;
  padding: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.shot {
  position: relative;
  aspect-ratio: 1080 / 2400;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

.card:hover .shot,
.card:focus-visible .shot {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.5);
}

.card:focus-visible { outline: none; }

.shot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.step {
  position: absolute;
  top: 8px;
  left: 8px;
  background: rgba(10, 12, 16, 0.78);
  color: #fff;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.03em;
  padding: 3px 7px;
  border-radius: 6px;
  backdrop-filter: blur(4px);
}

.label {
  font-size: 13px;
  line-height: 1.35;
  color: var(--ink-dim);
}

/* ---------- footer ---------- */

.foot {
  border-top: 1px solid var(--line);
  padding: 22px 24px 40px;
}

.foot p {
  max-width: 1400px;
  margin: 0 auto;
  color: var(--ink-faint);
  font-size: 13px;
}

/* ---------- viewer ---------- */

.viewer {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: #08090c;
  display: flex;
  flex-direction: column;
}

.viewer[hidden] { display: none; }

.viewer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.viewer-caption {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-size: 15px;
}

.viewer-caption span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chip {
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  flex: none;
}

.viewer-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.counter {
  color: var(--ink-faint);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.btn {
  appearance: none;
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  border-radius: 9px;
  padding: 7px 14px;
  text-decoration: none;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink-dim);
  transition: background 0.15s, color 0.15s;
}

.btn:hover { background: var(--panel-2); color: var(--ink); }

.viewer-stage {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px;
}

.viewer-stage img {
  max-height: 100%;
  max-width: min(100%, 420px);
  object-fit: contain;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.nav {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  flex: none;
  transition: background 0.15s, opacity 0.15s;
}

.nav:hover { background: var(--accent); border-color: var(--accent); }
.nav:disabled { opacity: 0.3; cursor: default; background: var(--panel); }

.filmstrip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 12px 20px 18px;
  border-top: 1px solid var(--line);
  scrollbar-width: thin;
}

.filmstrip button {
  appearance: none;
  flex: none;
  width: 42px;
  aspect-ratio: 1080 / 2400;
  padding: 0;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.15s, border-color 0.15s;
}

.filmstrip button:hover { opacity: 0.85; }

.filmstrip button[aria-current="true"] {
  opacity: 1;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.filmstrip img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 640px) {
  .grid { grid-template-columns: repeat(auto-fill, minmax(136px, 1fr)); gap: 16px 12px; }
  .top-inner { padding: 14px 16px 12px; }
  main { padding: 20px 16px 48px; }
  .intro h2 { font-size: 21px; }
  .nav { display: none; }
}