/* 의학당 DSA 처리기 — 크림슨/앵글 아이덴티티 (조영실 모니터 모티프) */

:root {
    --bg: #14100f;
    --panel: #201817;
    --panel-2: #191211;
    --line: #33211f;
    --line-strong: #4f3330;
    --text: #f4ece9;
    --text-dim: #a8918c;
    --crimson: #f43f5e;
    --rose: #fb7185;
    --crimson-deep: #9f1239;
    --danger: #fb7185;
    --warn: #fbbf24;
    --ok: #4ade80;
    --font: 'Noto Sans KR', -apple-system, 'Segoe UI', sans-serif;
    --mono: 'SF Mono', Consolas, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    border-bottom: 1px solid var(--line);
    background: var(--panel-2);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { width: 46px; height: 46px; border-radius: 50%; }
.brand-title {
    font-size: 20px;
    font-weight: 800;
    background: linear-gradient(90deg, var(--crimson), var(--rose));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.brand-sub { font-size: 12px; color: var(--text-dim); font-weight: 500; }
.header-status { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-dim); }
.dot.on { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.dot.off { background: var(--danger); }

.notice-bar {
    padding: 8px 24px;
    background: rgba(251, 191, 36, 0.08);
    border-bottom: 1px solid rgba(251, 191, 36, 0.25);
    color: var(--warn);
    font-size: 13px;
}

.layout {
    flex: 1;
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 16px;
    padding: 16px 24px;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } }

.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px;
}
.sec {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
    margin: 18px 0 10px;
}
.sec:first-child { margin-top: 0; }
.sec-bar { width: 4px; height: 16px; border-radius: 2px; background: linear-gradient(var(--crimson), var(--rose)); }

/* ── 컨트롤 ── */
.ctl { display: block; font-size: 12.5px; color: var(--text-dim); margin-bottom: 12px; }
.ctl span { color: var(--crimson); font-family: var(--mono); font-weight: 700; }
input[type=range] {
    width: 100%;
    margin-top: 6px;
    accent-color: var(--crimson);
}
.check { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-dim); margin-bottom: 14px; }
.check input { accent-color: var(--crimson); width: 16px; height: 16px; }

.btn {
    width: 100%;
    padding: 11px;
    border: none;
    border-radius: 8px;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: filter .15s, opacity .15s;
}
.btn:disabled { opacity: .5; cursor: progress; }
.btn:not(:disabled):hover { filter: brightness(1.12); }
.btn-primary { background: linear-gradient(90deg, var(--crimson-deep), var(--crimson)); color: #fff; }

.explain { font-size: 12.5px; line-height: 1.65; color: var(--text-dim); margin-bottom: 10px; }
.explain b { color: var(--text); font-weight: 700; }
.rule-list { list-style: none; font-size: 12.5px; color: var(--text-dim); }
.rule-list li { padding: 3px 0 3px 14px; position: relative; }
.rule-list li::before { content: "▸"; position: absolute; left: 0; color: var(--rose); }

/* ── 뷰어 ── */
.result-empty { color: var(--text-dim); font-size: 13.5px; padding: 40px 0; text-align: center; }
.toggle-row { display: flex; gap: 8px; margin-bottom: 12px; }
.tg {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--line-strong);
    background: transparent;
    color: var(--text-dim);
    border-radius: 8px;
    font-family: var(--font);
    font-size: 12.5px;
    font-weight: 700;
    cursor: pointer;
}
.tg.active { background: var(--crimson-deep); color: #fff; border-color: var(--crimson-deep); }

.img-wrap {
    background: #000;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 8px;
    display: flex;
    justify-content: center;
}
.img-wrap img {
    width: 100%;
    max-width: 420px;
    image-rendering: auto;
    border-radius: 4px;
}
.hint { font-size: 12px; color: var(--text-dim); margin-top: 6px; font-family: var(--mono); }

.map-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.map-row figure {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 6px;
    text-align: center;
}
.map-row img { width: 100%; border-radius: 4px; display: block; }
.map-row figcaption { font-size: 11.5px; color: #6b7280; margin-top: 4px; font-weight: 600; }
@media (max-width: 560px) { .map-row { grid-template-columns: 1fr; } }

.app-footer {
    padding: 12px 24px;
    border-top: 1px solid var(--line);
    background: var(--panel-2);
    color: var(--text-dim);
    font-size: 12px;
    text-align: center;
}