/* Coincal site stylesheet — mobile-first, no framework. */
:root {
    --bg: #0b1020;
    --bg-soft: #121934;
    --panel: #1a2244;
    --border: #263066;
    --text: #e7ecff;
    --muted: #8a93b4;
    --accent: #5b8cff;
    --accent-2: #7bd389;
    --up: #32c47b;
    --down: #ff6b6b;
    --radius: 10px;
    --container: 1180px;
}
:root[data-theme="light"] {
    --bg: #f6f8ff;
    --bg-soft: #ffffff;
    --panel: #ffffff;
    --border: #dfe5f5;
    --text: #0b1020;
    --muted: #5a6487;
    --accent: #3465ff;
    --up: #118a50;
    --down: #c92a2a;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans KR", "Noto Sans", sans-serif;
    background: radial-gradient(1200px 500px at 10% -10%, #1a2560 0%, transparent 60%),
                radial-gradient(900px 400px at 100% 10%, #142047 0%, transparent 60%),
                var(--bg);
    color: var(--text);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
img { max-width: 100%; }
button { font: inherit; cursor: pointer; }
[dir="rtl"] { direction: rtl; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 16px; }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }

/* Header */
.site-header {
    position: sticky; top: 0; z-index: 20;
    background: rgba(11,16,32,0.85);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
}
.site-header__inner {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 16px;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.1rem; }
.brand__mark { color: var(--accent); font-size: 1.2rem; }
.search { flex: 1; }
.search input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    outline: none;
}
.search input:focus { border-color: var(--accent); }
.toolbar { display: flex; align-items: center; gap: 6px; }
.icon-btn {
    background: var(--bg-soft); color: var(--text);
    border: 1px solid var(--border); border-radius: var(--radius);
    width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center;
    cursor: pointer;
}
.icon-btn.pill { width: auto; padding: 0 10px; font-size: 0.8rem; font-weight: 600; }
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }

.lang { position: relative; }
.lang summary {
    list-style: none;
    cursor: pointer;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-soft);
}
.lang summary::-webkit-details-marker { display: none; }
.lang[open] summary { border-color: var(--accent); }
.lang ul {
    position: absolute; right: 0; top: calc(100% + 4px);
    list-style: none; margin: 0; padding: 6px;
    background: var(--panel); border: 1px solid var(--border);
    border-radius: var(--radius);
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px;
    min-width: 160px;
}
.lang li a { display: block; padding: 6px 10px; border-radius: 6px; font-size: 0.875rem; }
.lang li a:hover, .lang li a[aria-current] { background: var(--bg-soft); color: var(--accent); }
[dir="rtl"] .lang ul { right: auto; left: 0; }

/* Ads */
.ads-top { padding: 8px 16px; background: transparent; text-align: center; overflow: hidden; }
.ads-inline { display: flex; gap: 12px; align-items: flex-start; justify-content: center; flex-wrap: wrap; margin: 16px auto; }
.ads-inline .adsbygoogle { flex: 1 1 280px; min-height: 120px; }
.side-ad { display: none; position: fixed; top: 96px; width: 160px; z-index: 1; }
.side-ad--left  { left: 12px; }
.side-ad--right { right: 12px; }
@media (min-width: 1520px) { .side-ad { display: block; } }

/* Hero */
.hero { padding: 48px 0 24px; }
.hero__title { font-size: 1.7rem; margin: 0 0 8px; letter-spacing: -0.02em; }
.hero__sub { color: var(--muted); margin: 0; }

/* Tabs */
.tabs { display: flex; gap: 8px; margin: 16px 0; }
.tabs button {
    padding: 8px 14px;
    background: transparent;
    color: var(--muted);
    border: 1px solid var(--border);
    border-radius: 999px;
}
.tabs button[aria-selected="true"] {
    background: var(--accent); color: #fff; border-color: var(--accent);
}

/* Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 32px;
}
.card[hidden] { display: none !important; }
.card {
    display: block; padding: 14px 14px 12px;
    background: var(--panel); border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: transform .08s ease, border-color .15s ease;
}
.card:hover { transform: translateY(-1px); border-color: var(--accent); color: var(--text); }
.card__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.ticker { font-weight: 700; letter-spacing: 0.04em; }
.kind-badge { font-size: 0.7rem; padding: 2px 8px; border-radius: 999px; background: var(--bg-soft); color: var(--muted); border: 1px solid var(--border); }
.kind-coin { color: #ffd27a; border-color: #5a4820; }
.kind-etf  { color: #8ad0ff; border-color: #20405a; }
.card__name { color: var(--muted); font-size: 0.85rem; margin-bottom: 10px; }
.card__price { font-size: 1.15rem; font-weight: 600; margin-bottom: 6px; }
.card__meta { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.pct.up { color: var(--up); }
.pct.down { color: var(--down); }

/* Symbol hero */
.symbol-hero { padding: 24px 0 8px; }
.symbol-hero__inner { }
.back { color: var(--muted); font-size: 0.9rem; }
.back:hover { color: var(--accent); }
.symbol-hero__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-top: 10px; }
.symbol-hero__name { margin: 0; font-size: 1.9rem; letter-spacing: -0.02em; }
.symbol-hero__name small { font-size: 0.9rem; margin-left: 8px; }
.symbol-hero__price { text-align: right; }
.symbol-hero__price .price { font-size: 1.9rem; font-weight: 700; letter-spacing: -0.02em; }
.symbol-hero__price .pct { font-size: 1rem; font-weight: 600; }

/* Panel / calc */
.panel {
    background: var(--panel); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 18px;
    margin-bottom: 24px;
}
.section-h { font-size: 1.15rem; margin: 0 0 10px; }
.calc__form {
    display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; margin-top: 8px;
}
.calc__form label { display: flex; flex-direction: column; gap: 4px; font-size: 0.85rem; color: var(--muted); }
.calc__form input {
    padding: 10px 12px;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    outline: none;
}
.calc__form input:focus { border-color: var(--accent); }
.calc__form button {
    grid-column: 1 / -1;
    padding: 12px 16px;
    background: var(--accent); color: #fff; border: 0;
    border-radius: var(--radius);
    font-weight: 700; letter-spacing: 0.02em;
}
.calc__form button[disabled] { opacity: 0.5; cursor: not-allowed; }
.calc__result {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 8px; margin-top: 14px;
}
.calc__result div {
    background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 10px 12px;
}
.calc__result div.highlight { border-color: var(--accent); background: rgba(91,140,255,0.08); }
.calc__result dt { font-size: 0.75rem; color: var(--muted); margin: 0 0 4px; }
.calc__result dd { margin: 0; font-weight: 600; font-size: 1.05rem; }
.calc__result dd.up { color: var(--up); }
.calc__result dd.down { color: var(--down); }

/* Chart */
.chart-wrap { }
.chart-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; gap: 8px; flex-wrap: wrap; }
.chart-range { display: flex; gap: 4px; }
.chart-range button {
    background: transparent; border: 1px solid var(--border); color: var(--muted);
    border-radius: 999px; padding: 4px 10px; font-size: 0.8rem;
}
.chart-range button[aria-selected="true"] { background: var(--accent); color: #fff; border-color: var(--accent); }
.chart-box { position: relative; width: 100%; height: 300px; }
@media (min-width: 768px) { .chart-box { height: 360px; } }
#priceChart { width: 100% !important; height: 100% !important; display: block; }

/* News list */
.news-section { margin-bottom: 32px; }
.news-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.news-list a {
    display: flex; gap: 12px; padding: 10px 12px;
    background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
}
.news-list a:hover { border-color: var(--accent); }
.news-date { color: var(--muted); font-size: 0.85rem; white-space: nowrap; }
.news-title { flex: 1; }

/* Footer */
.site-footer { padding: 24px 0 40px; text-align: center; }
.site-footer p { margin: 4px 0; }

/* Breakpoints */
@media (min-width: 640px) {
    .hero__title { font-size: 2.1rem; }
    .calc__form { grid-template-columns: 1fr 1fr 1fr; }
    .calc__form button { grid-column: auto; align-self: end; }
}
@media (min-width: 960px) {
    .site-header__inner { padding: 12px 0; }
}