:root {
  --bg: #f6f7f9; --fg: #1b1f24; --muted: #6b7280; --card: #ffffff; --line: #e3e6ea;
  --accent: #2563eb; --accent-fg: #ffffff; --ok: #15803d; --warn: #b45309; --danger: #b91c1c;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1216; --fg: #e6e8eb; --muted: #9aa3ad; --card: #171b21; --line: #262c35; --accent: #3b82f6; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); text-decoration: none; }
main { max-width: 1400px; margin: 0 auto; padding: 16px; }
footer { text-align: center; color: var(--muted); font-size: 12px; padding: 24px; }
.grow { flex: 1; }
.muted { color: var(--muted); }
.err { color: var(--danger); }

nav.top { display: flex; align-items: center; gap: 12px; padding: 10px 16px; background: var(--card); border-bottom: 1px solid var(--line); }
nav.top .brand { font-weight: 700; color: var(--fg); font-size: 17px; }
nav.top .who { color: var(--muted); font-size: 13px; }

.login { max-width: 380px; margin: 12vh auto; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 28px; text-align: center; }
.login h1 { margin: 0 0 6px; }
.btn { display: inline-block; padding: 7px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--fg); cursor: pointer; font: inherit; }
.btn.primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); padding: 10px 18px; font-weight: 600; }
.btn.danger { color: var(--danger); }
.btn.disabled { opacity: .4; cursor: default; }

.stats { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.stats div { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 8px 14px; min-width: 120px; }
.stats b { display: block; font-size: 18px; }
.stats span { color: var(--muted); font-size: 12px; }

.filters { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 16px; }
.filters label { display: flex; gap: 6px; align-items: center; font-size: 13px; color: var(--muted); }
.filters select { font: inherit; padding: 4px 6px; border-radius: 6px; border: 1px solid var(--line); background: var(--card); color: var(--fg); max-width: 280px; }

.latest { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px; margin-bottom: 20px; }
.latest-head { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
.latest h2 { margin: 0 0 8px; font-size: 16px; }
.latest img { width: 100%; height: auto; border-radius: 8px; border: 1px solid var(--line); display: block; }
.latest.flash { outline: 3px solid var(--accent); }

.empty { text-align: center; padding: 60px 20px; color: var(--muted); }

.day h3 { margin: 18px 0 8px; font-size: 14px; color: var(--muted); position: sticky; top: 0; background: var(--bg); padding: 6px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.card { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; color: var(--fg); }
.card img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; object-position: top; display: block; background: #222; }
.card .meta { display: flex; gap: 8px; align-items: center; padding: 6px 8px; font-size: 13px; }
.card.new { outline: 2px solid var(--accent); }
.pill { font-size: 11px; padding: 1px 7px; border-radius: 999px; background: #e0e7ff; color: #1e3a8a; }
.pill.initial { background: #dcfce7; color: #14532d; }
.pill.resize { background: #fef3c7; color: #78350f; }
@media (prefers-color-scheme: dark) { .pill { background: #1e3a8a; color: #dbeafe; } .pill.initial { background: #14532d; color: #dcfce7; } }

.viewer .bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 10px; font-size: 13px; }
.viewer .bar form { display: inline; }
.viewer .compare { display: flex; gap: 6px; align-items: center; color: var(--muted); }
.viewer .stage { position: relative; background: #222; border-radius: 10px; overflow: hidden; border: 1px solid var(--line); }
.viewer .stage img { width: 100%; height: auto; display: block; }
.viewer .stage img.under { position: absolute; inset: 0; }
.viewer .stage img.over { position: relative; }
.viewer .hint { font-size: 12px; margin-top: 8px; }