:root {
  --bg: #f7f7fb;
  --surface: #ffffff;
  --text: #1c1c28;
  --muted: #6b6b80;
  --border: #e3e3ec;
  --accent: #4f46e5;
  --accent-text: #ffffff;
  --danger: #dc2626;
  --ok: #059669;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111118;
    --surface: #1b1b25;
    --text: #ececf3;
    --muted: #9a9ab0;
    --border: #2c2c3a;
    --accent: #818cf8;
    --accent-text: #111118;
    --danger: #f87171;
    --ok: #34d399;
  }
}
* { box-sizing: border-box; }
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); }
header.top {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 960px; margin: 0 auto; padding: 16px;
}
.brand { font-weight: 700; font-size: 20px; text-decoration: none; color: var(--text); }
.brand span { color: var(--accent); }
main { max-width: 960px; margin: 0 auto; padding: 0 16px 48px; }
.narrow { max-width: 440px; }
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; margin-bottom: 20px;
}
h1 { font-size: 32px; line-height: 1.2; margin: 32px 0 8px; }
h2 { font-size: 18px; margin: 0 0 12px; }
p.lead { color: var(--muted); font-size: 18px; margin: 0 0 24px; }
.muted { color: var(--muted); font-size: 14px; }
label { display: block; font-size: 14px; font-weight: 600; margin: 12px 0 4px; }
input[type=text], input[type=email], input[type=url], textarea {
  width: 100%; padding: 10px 12px; font: inherit; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
}
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 16px; font: inherit; font-weight: 600; cursor: pointer;
  background: var(--accent); color: var(--accent-text);
  border: 0; border-radius: 8px; text-decoration: none;
}
button.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
button.danger { background: transparent; color: var(--danger); border: 1px solid var(--border); }
button:disabled { opacity: .6; cursor: default; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.row > input { flex: 1; min-width: 0; }
.msg { margin-top: 12px; font-size: 14px; }
.msg.error { color: var(--danger); }
.msg.ok { color: var(--ok); }
.hidden { display: none !important; }
code.uri {
  display: block; flex: 1; min-width: 0; overflow-wrap: anywhere;
  padding: 10px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  font-size: 15px;
}
.drop {
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 28px 16px; text-align: center; color: var(--muted); cursor: pointer;
}
.drop.over { border-color: var(--accent); color: var(--text); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.tile {
  position: relative; aspect-ratio: 1; border-radius: 10px; overflow: hidden;
  background: var(--bg); border: 1px solid var(--border);
}
.tile img { width: 100%; height: 100%; object-fit: cover; display: block; }
.tile .del {
  position: absolute; top: 6px; right: 6px; padding: 4px 8px; font-size: 12px;
  background: rgba(0,0,0,.65); color: #fff; border: 0;
}
.tile .tag {
  position: absolute; left: 6px; bottom: 6px; font-size: 11px; padding: 2px 6px;
  background: rgba(0,0,0,.65); color: #fff; border-radius: 4px;
}
.preview { max-width: 100%; max-height: 260px; border-radius: 10px; display: block; margin-top: 12px; }
footer { text-align: center; color: var(--muted); font-size: 13px; padding: 24px 16px; }
.dev-link { overflow-wrap: anywhere; }