:root {
    --paper: #f5f2ec;
    --card: #fffdfa;
    --ink: #1c1a17;
    --muted: #7a736a;
    --line: #e2dbd0;
    --accent: #8a4b2a;
    --accent-soft: #f0e3d8;
    --ok: #2f6b4f;
    --err: #9a2f2f;
    --radius: 14px;
    --shadow: 0 1px 2px rgba(28, 26, 23, .05), 0 8px 24px -12px rgba(28, 26, 23, .18);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

h1, h2, h3 {
    font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
    font-weight: 600;
    letter-spacing: -.01em;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 28px;
    background: var(--card);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 5;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand small { display: block; color: var(--muted); font-size: 12px; }
.brand .dot {
    width: 26px; height: 26px; border-radius: 50%;
    background: radial-gradient(circle at 32% 28%, #f2d27a, #b7761f 70%, #7d4b12);
    box-shadow: inset 0 0 0 1px rgba(0,0,0,.12);
}

main {
    max-width: 1080px;
    margin: 0 auto;
    padding: 28px 20px 80px;
    display: grid;
    gap: 22px;
}

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 22px 24px 26px;
}

.card h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 18px;
    font-size: 19px;
}

.step {
    display: grid;
    place-items: center;
    width: 26px; height: 26px;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent);
    font: 600 13px/1 sans-serif;
    font-family: sans-serif;
}

button, .button {
    font: inherit;
    font-weight: 500;
    border: 1px solid var(--ink);
    background: var(--ink);
    color: #fff;
    padding: 9px 16px;
    border-radius: 9px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: transform .08s ease, opacity .15s ease;
}
button:hover, .button:hover { opacity: .88; }
button:active { transform: translateY(1px); }
button:disabled { opacity: .4; cursor: not-allowed; }

button.primary { background: var(--accent); border-color: var(--accent); padding: 11px 22px; }
button.ghost, .chip {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line);
}
button.ghost:hover { border-color: var(--ink); }

.upload { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.upload input[type=file] {
    flex: 1 1 260px;
    padding: 10px;
    border: 1px dashed var(--line);
    border-radius: 9px;
    background: #fbf8f3;
}

.types { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.chip { padding: 8px 18px; border-radius: 999px; }
.chip.active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); font-weight: 600; }

.preview { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; margin-top: 18px; }
.preview img {
    width: 260px; aspect-ratio: 4/3; object-fit: cover;
    border-radius: 10px; border: 1px solid var(--line); background: #fff;
}
.preview .note { flex: 1 1 240px; margin: 0; }

.badge {
    background: var(--accent-soft); color: var(--accent);
    padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600;
}
.muted { color: var(--muted); font-size: 13px; }

.alert {
    margin: 0; padding: 12px 16px; border-radius: 10px;
    border: 1px solid var(--line); background: var(--card); font-size: 14px;
}
.alert.error { border-color: #e5bfbf; background: #fdf3f3; color: var(--err); }
.alert.ok { border-color: #c3ddcd; background: #f2f9f5; color: var(--ok); }
.alert.warn { border-color: #e6d4a8; background: #fdf8ec; color: #7a5a12; }
.alert code { background: rgba(0,0,0,.06); padding: 1px 5px; border-radius: 4px; }

.elements { display: grid; gap: 18px; }
.element { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px 16px; background: #fdfbf7; }
.element header { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.element h3 { margin: 0; font-size: 16px; }

.swatches { display: flex; flex-wrap: wrap; gap: 10px; }
.swatch { width: 78px; cursor: pointer; text-align: center; }
.swatch input { position: absolute; opacity: 0; pointer-events: none; }
.swatch .thumb {
    display: grid; place-items: center;
    width: 78px; height: 62px;
    border-radius: 9px;
    object-fit: cover;
    border: 1px solid var(--line);
    box-shadow: inset 0 0 0 2px transparent;
    transition: box-shadow .12s ease, border-color .12s ease;
}
.swatch.none .thumb { background: #fff; color: var(--muted); font-size: 11px; line-height: 1.2; border-style: dashed; }
.swatch .label { display: block; margin-top: 5px; font-size: 11px; color: var(--muted); line-height: 1.25; }
.swatch:hover .thumb { border-color: var(--accent); }
.swatch.checked .thumb { border-color: var(--accent); box-shadow: inset 0 0 0 2px #fff, 0 0 0 2px var(--accent); }
.swatch.checked .label { color: var(--ink); font-weight: 600; }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 20px; }
.actions form { margin: 0; }

.compare { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.compare figure { margin: 0; }
.compare img { width: 100%; border-radius: 10px; border: 1px solid var(--line); background: #fff; }
.compare figcaption { margin-top: 6px; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }

.summary { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 8px; }
.summary li { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.summary img { width: 30px; height: 24px; border-radius: 5px; border: 1px solid var(--line); object-fit: cover; }

.history { display: flex; gap: 10px; flex-wrap: wrap; }
.history img { width: 96px; height: 72px; object-fit: cover; border-radius: 8px; border: 1px solid var(--line); }

@media (max-width: 640px) {
    .topbar { padding: 12px 16px; }
    .card { padding: 18px 16px 22px; }
}