:root {
  --bg: #fafafa; --card: #ffffff; --text: #111827; --muted: #6b7280; --line: #e5e7eb;
  --accent: #6d28d9; --accent-2: #db2777; --accent-3: #f59e0b;
  --warn: #b45309; --warn-bg: #fef3c7; --bad: #b91c1c; --bad-bg: #fee2e2; --ok-bg: #ede9fe;
  --radius: 16px; --shadow: 0 1px 2px rgba(0,0,0,.06), 0 8px 24px rgba(0,0,0,.06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0b0f; --card: #15151c; --text: #f3f4f6; --muted: #9ca3af; --line: #2a2a35;
    --accent: #a78bfa; --warn: #fcd34d; --warn-bg: #3b2e0a; --bad: #fca5a5; --bad-bg: #3b1212; --ok-bg: #26204a;
    --shadow: 0 1px 2px rgba(0,0,0,.5), 0 8px 24px rgba(0,0,0,.4);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
button { font: inherit; color: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top-inner { max-width: 640px; margin: 0 auto; padding: 12px 16px; }
.logo { margin: 0; font-size: 1.5rem; letter-spacing: -.02em; display: flex; align-items: center; gap: 8px; }
.logo-dot { width: 14px; height: 14px; border-radius: 50%;
  background: conic-gradient(var(--accent-3), var(--accent-2), var(--accent), var(--accent-3)); }
.tagline { margin: 2px 0 0; color: var(--muted); font-size: .8rem; }

.wrap { max-width: 640px; margin: 0 auto; padding: 16px; }

/* story rings */
.stories { list-style: none; margin: 0 -16px; padding: 4px 16px 12px; display: flex; gap: 14px;
  overflow-x: auto; scrollbar-width: none; }
.stories::-webkit-scrollbar { display: none; }
.story { flex: 0 0 auto; width: 76px; text-align: center; background: none; border: 0; padding: 0; }
.ring { width: 72px; height: 72px; border-radius: 50%; padding: 3px; margin: 0 auto;
  background: conic-gradient(var(--accent-3), var(--accent-2), var(--accent), var(--accent-3)); }
.ring.seen { background: var(--line); }
.ring img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; border: 3px solid var(--bg); display: block; background: var(--line); }
.story-label { display: block; margin-top: 6px; font-size: .72rem; color: var(--muted);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* filters */
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 4px 0 16px; }
.chip { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 6px 12px; font-size: .85rem; }
.chip[aria-pressed="true"] { background: var(--accent); color: #fff; border-color: var(--accent); }

.status { color: var(--muted); text-align: center; padding: 24px 0; }
.status:empty { display: none; }

/* cards */
.feed { display: grid; gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; }
.card-head { display: flex; align-items: center; gap: 10px; padding: 12px 14px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-weight: 700;
  background: conic-gradient(var(--accent-3), var(--accent-2), var(--accent)); flex: none; }
.meta { min-width: 0; flex: 1; }
.src { font-weight: 600; font-size: .9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.when { color: var(--muted); font-size: .78rem; }
.badge { font-size: .72rem; font-weight: 700; padding: 3px 8px; border-radius: 999px; background: var(--ok-bg); color: var(--accent); }
.badge.corrected { background: var(--bad-bg); color: var(--bad); }
.cover { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; display: block; background: var(--line); cursor: pointer; }
.card-body { padding: 12px 14px 14px; }
.headline { margin: 0 0 6px; font-size: 1.15rem; line-height: 1.3; letter-spacing: -.01em; }
.headline button { all: unset; cursor: pointer; }
.headline button:focus-visible { outline: 3px solid var(--accent); }
.summary { margin: 0 0 10px; color: var(--text); opacity: .88; }
.tags { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 12px; }
.tag { font-size: .78rem; color: var(--accent); }
.life { height: 6px; background: var(--line); border-radius: 99px; overflow: hidden; }
.life > i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 99px; }
.life.low > i { background: var(--warn); }
.life-row { display: flex; justify-content: space-between; align-items: center; margin-top: 6px; font-size: .78rem; color: var(--muted); }
.expires.low { color: var(--warn); font-weight: 700; }
.btn { display: inline-block; text-decoration: none; background: var(--accent); color: #fff; border-radius: 10px; padding: 8px 14px; font-size: .9rem; border: 0; }
@media (prefers-color-scheme: dark) { .btn { color: #0b0b0f; } .chip[aria-pressed="true"] { color: #0b0b0f; } }

.foot { max-width: 640px; margin: 24px auto 40px; padding: 0 16px; color: var(--muted); display: grid; gap: 4px; text-align: center; }

/* viewer */
.viewer { position: fixed; inset: 0; z-index: 50; background: rgba(0,0,0,.82); display: grid; place-items: center; padding: 12px; }
.viewer[hidden] { display: none; }
.viewer-card { position: relative; width: min(480px, 100%); max-height: 94vh; overflow: auto; background: var(--card);
  border-radius: 20px; box-shadow: var(--shadow); }
.progress { display: flex; gap: 4px; padding: 10px 12px 0; position: sticky; top: 0; background: var(--card); z-index: 2; }
.progress i { flex: 1; height: 3px; border-radius: 3px; background: var(--line); }
.progress i.on { background: var(--accent); }
.viewer-body img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; margin-top: 8px; background: var(--line); }
.viewer-body .inner { padding: 14px 16px 18px; }
.icon-btn { position: absolute; z-index: 3; border: 0; background: rgba(0,0,0,.55); color: #fff; width: 38px; height: 38px;
  border-radius: 50%; font-size: 1.2rem; line-height: 1; }
.close { top: 18px; right: 12px; }
.nav { top: 40%; } .prev { left: 8px; } .next { right: 8px; }
.timeline { list-style: none; margin: 12px 0; padding: 0 0 0 14px; border-left: 2px solid var(--line); }
.timeline li { margin: 0 0 10px 6px; font-size: .88rem; }
.timeline b { color: var(--accent); }
.timeline .corrected b { color: var(--bad); }
.timeline time { display: block; color: var(--muted); font-size: .75rem; }
@media (prefers-reduced-motion: no-preference) { .card { transition: transform .15s; } .card:hover { transform: translateY(-2px); } }