:root {
    color-scheme: dark;
    --bg: #090b0f;
    --panel: #11151c;
    --panel-soft: #171c25;
    --border: #262d39;
    --text: #f2f5f8;
    --muted: #9ba7b7;
    --accent: #f0b90b;
    --success: #37d39a;
    --warning: #f0b90b;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    background: radial-gradient(circle at 80% 0%, #1b1a10 0, var(--bg) 32rem);
    color: var(--text);
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 68px;
    padding: 0 5vw;
    border-bottom: 1px solid var(--border);
    background: rgb(9 11 15 / 82%);
}

.brand { color: var(--text); font-weight: 750; text-decoration: none; }
.header-actions { display: flex; align-items: center; gap: 1rem; }
.container { width: min(1120px, 90vw); margin: 0 auto; padding: 4rem 0; }
.hero { display: flex; align-items: flex-start; justify-content: space-between; gap: 2rem; margin-bottom: 2rem; }
h1 { max-width: 760px; margin: .25rem 0 .75rem; font-size: clamp(2.1rem, 5vw, 4.6rem); line-height: 1; letter-spacing: -.05em; }
h2 { margin: .3rem 0 .7rem; font-size: 1.55rem; }
p { line-height: 1.6; }
.eyebrow { margin: 0; color: var(--accent); font-size: .75rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.muted { color: var(--muted); }
.mode-badge, .status-pill { display: inline-flex; padding: .45rem .75rem; border: 1px solid var(--border); border-radius: 999px; font-size: .75rem; font-weight: 800; letter-spacing: .06em; }
.mode-badge { color: var(--accent); }
.status-ok { color: var(--success); border-color: rgb(55 211 154 / 45%); }
.status-warn { color: var(--warning); border-color: rgb(240 185 11 / 45%); }
.status-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.status-card, .placeholder-panel, .auth-panel { border: 1px solid var(--border); border-radius: 18px; background: linear-gradient(145deg, var(--panel-soft), var(--panel)); }
.status-card { display: grid; gap: .5rem; min-height: 160px; padding: 1.3rem; }
.status-card strong { align-self: end; font-size: 1.35rem; }
.status-card small, .status-label { color: var(--muted); }
.placeholder-panel { margin-top: 1rem; padding: 2rem; }
.auth-panel { width: min(440px, 100%); margin: 5vh auto; padding: 2rem; }
.auth-panel-wide { width: min(560px, 100%); }
.auth-panel h1 { font-size: 2.25rem; }
.form-stack { display: grid; gap: .7rem; margin-top: 1.5rem; }
input { width: 100%; padding: .85rem 1rem; border: 1px solid var(--border); border-radius: 10px; background: #090b0f; color: var(--text); font: inherit; }
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.button { border: 0; border-radius: 10px; padding: .75rem 1rem; font: inherit; font-weight: 750; cursor: pointer; }
.button-primary { margin-top: .7rem; background: var(--accent); color: #171200; }
.button-quiet { background: var(--panel-soft); color: var(--text); }
.alert { padding: .8rem 1rem; border-radius: 10px; }
.alert-error { color: #ffb8b8; background: rgb(180 42 42 / 20%); }
.qr-card { width: fit-content; margin: 1.5rem auto; padding: .75rem; border-radius: 14px; background: #fff; }
.qr-card img { display: block; max-width: 100%; height: auto; }
.manual-key { margin: 1rem 0; color: var(--muted); }
.manual-key summary { cursor: pointer; }
.manual-key code { display: block; overflow-wrap: anywhere; color: var(--text); letter-spacing: .08em; }
.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 1rem; }
.metric-card, .data-panel {
    border: 1px solid var(--border);
    border-radius: 18px;
    background: linear-gradient(145deg, var(--panel-soft), var(--panel));
}
.metric-card { display: grid; gap: .5rem; min-height: 150px; padding: 1.3rem; }
.metric-card strong { align-self: end; font-size: 1.45rem; letter-spacing: -.025em; }
.metric-card small { color: var(--muted); }
.metric-primary { border-color: rgb(240 185 11 / 35%); background: linear-gradient(145deg, #221e10, #11151c); }
.positive { color: var(--success); }
.negative { color: #ff7a85; }
.warning { color: var(--warning); }
.data-panel { margin-top: 1rem; overflow: hidden; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1.5rem; border-bottom: 1px solid var(--border); }
.panel-heading h2 { margin-bottom: 0; }
.panel-meta { color: var(--muted); font-size: .85rem; }
.table-scroll { overflow-x: auto; }
table { width: 100%; min-width: 1180px; border-collapse: collapse; }
th, td { padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
tbody tr:last-child td { border-bottom: 0; }
.numeric { text-align: right; font-variant-numeric: tabular-nums; }
.price-badge { display: inline-flex; margin-left: .45rem; padding: .2rem .4rem; border-radius: 5px; font-size: .62rem; font-weight: 850; text-transform: uppercase; vertical-align: middle; }
.price-unpriced { color: var(--warning); background: rgb(240 185 11 / 12%); }
.quote-detail { min-width: 260px; white-space: normal; }
.quote-detail span, .quote-detail small { display: block; line-height: 1.4; }
.quote-detail small { margin-top: .2rem; }
.empty-state { margin: 0; padding: 2rem 1.5rem; color: var(--muted); }
.order-list { display: grid; }
.order-row { display: grid; grid-template-columns: 1fr auto 1fr 1fr; align-items: center; gap: 1rem; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border); }
.order-row:last-child { border-bottom: 0; }
.order-row div { display: grid; gap: .25rem; }
.order-row small { color: var(--muted); }
.side-badge { padding: .35rem .55rem; border-radius: 6px; font-size: .72rem; font-weight: 850; }
.side-buy { color: var(--success); background: rgb(55 211 154 / 12%); }
.side-sell { color: #ff7a85; background: rgb(255 122 133 / 12%); }
.status-strip { display: flex; flex-wrap: wrap; gap: .65rem 1.5rem; margin-top: 1rem; padding: 1rem 1.25rem; color: var(--muted); font-size: .78rem; }

@media (max-width: 860px) {
    .status-grid { grid-template-columns: repeat(2, 1fr); }
    .summary-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
    .container { padding: 2.5rem 0; }
    .hero { display: grid; }
    .status-grid { grid-template-columns: 1fr; }
    .summary-grid { grid-template-columns: 1fr; }
    .order-row { grid-template-columns: 1fr auto; }
    .order-row .numeric { text-align: left; }
    .mode-badge { display: none; }
}