:root {
    --bg: #f7f7f5;
    --panel: #ffffff;
    --text: #1a1e23;
    --muted: #5c6470;
    --border: #dcdfe4;
    --accent: #2f6feb;
    --ok: #1a7f37;
    --error: #c93c37;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14171b;
        --panel: #1c2026;
        --text: #e8eaed;
        --muted: #9aa3ad;
        --border: #333a43;
        --accent: #6ea3ff;
        --ok: #4ac26b;
        --error: #ff7a72;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}

main { max-width: 720px; margin: 0 auto; padding: 2.5rem 1.25rem 4rem; }
main.narrow { max-width: 560px; }

h1 { font-size: 1.7rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.15rem; margin: 0 0 0.6rem; }
h3 { margin: 0 0 0.5rem; }

.tagline { color: var(--muted); margin: 0 0 2rem; }

.step {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem 1.4rem;
    margin-bottom: 1rem;
}

.step.locked { opacity: 0.45; pointer-events: none; }

.step p { color: var(--muted); font-size: 0.92rem; margin: 0 0 0.9rem; }

.substeps { color: var(--muted); font-size: 0.92rem; margin: 0 0 0.9rem; padding-left: 1.3rem; }
.substeps li { margin-bottom: 0.35rem; }

#extras {
    border: 1px dashed var(--border);
    border-radius: 7px;
    padding: 0.6rem 0.9rem;
    margin-bottom: 0.9rem;
}

#extras summary { cursor: pointer; font-size: 0.92rem; color: var(--muted); }

#extras .extra { margin-top: 0.8rem; }
#extras label { display: block; font-size: 0.9rem; color: var(--muted); margin-bottom: 0.35rem; }
#extras input[type="password"] { width: 100%; }
#archive-list label { padding-left: 0.2rem; }
#archive-list input:disabled + * { opacity: 0.5; }

.hint { font-size: 0.8rem; color: var(--muted); margin-top: 0.8rem; }

.num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    margin-right: 0.4rem;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 0.85rem;
}

.row { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; margin-bottom: 0.5rem; }

input[type="text"], input[type="password"], select {
    flex: 1;
    min-width: 220px;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 7px;
    background: var(--bg);
    color: var(--text);
    font: inherit;
}

button, .button {
    padding: 0.55rem 1.1rem;
    border: none;
    border-radius: 7px;
    background: var(--accent);
    color: #fff;
    font: inherit;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

button:disabled { opacity: 0.5; cursor: default; }

.status { font-size: 0.9rem; color: var(--muted); }
.status.ok { color: var(--ok); }
.status.error { color: var(--error); }

.hidden { display: none !important; }

#mapping-list details {
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 0.5rem 0.8rem;
    margin-bottom: 0.5rem;
}

#mapping-list summary { cursor: pointer; font-size: 0.95rem; }

#mapping-list label {
    display: block;
    padding: 0.35rem 0 0.1rem 1.2rem;
    font-size: 0.9rem;
    color: var(--muted);
}

pre {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 0.8rem 1rem;
    font-size: 0.85rem;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

#done-panel {
    border-top: 1px solid var(--border);
    margin-top: 1rem;
    padding-top: 1rem;
}

.about {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem 1.4rem;
    margin-top: 2.5rem;
}

.about h3 { font-size: 1rem; margin: 1.1rem 0 0.4rem; }
.about h3:first-of-type { margin-top: 0.8rem; }
.about p, .about ol { color: var(--muted); font-size: 0.92rem; margin: 0 0 0.6rem; }
.about ol { padding-left: 1.3rem; }
.about li { margin-bottom: 0.45rem; }

footer { color: var(--muted); font-size: 0.8rem; margin-top: 2.5rem; }

a { color: var(--accent); }