* { box-sizing: border-box; }
body { font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; margin: 0; color: #111; background: #fafafa; }
header { padding: 24px; background: #fff; border-bottom: 1px solid #eee; position: sticky; top: 0; z-index: 10; }
h1 { margin: 0 0 8px; font-size: 24px; }
.wrap { max-width: 960px; margin: 0 auto; padding: 16px; }
.card { background: #fff; border: 1px solid #eee; border-radius: 12px; padding: 16px; box-shadow: 0 2px 8px rgba(0,0,0,0.03); }
form.upload { display: grid; gap: 12px; }
input[type="file"] { padding: 8px; border: 1px dashed #ccc; background: #fcfcfc; }
button { padding: 10px 16px; border: 0; border-radius: 10px; background: #111; color: #fff; cursor: pointer; }
button:disabled { opacity: .6; cursor: not-allowed; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; }
.tile { position: relative; overflow: hidden; border-radius: 10px; border: 1px solid #eee; background: #fff; }
.tile img { width: 100%; height: 160px; object-fit: cover; display: block; }
.muted { color: #666; font-size: 14px; }
footer { text-align: center; color: #777; padding: 24px; }
.notice { padding: 8px 12px; border-left: 4px solid #0a7; background: #eafff5; border-radius: 6px; }
.error { border-left-color: #c22; background: #ffeeee; }