/* Trang giải thích mô hình AI (mo-hinh-ai.html) */
.ss-nav { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; justify-content: center; }
.ss-nav a {
    display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 999px; font-size: var(--fs-xs);
    color: var(--text-2); border: 1px solid var(--border); text-decoration: none; white-space: nowrap;
}
.ss-nav a:hover { color: var(--text); border-color: var(--accent); }
.pv-section { scroll-margin-top: 80px; }
.sn-card h3 { font-size: var(--fs-md); font-weight: 700; margin-bottom: var(--sp-2); }

.ai-hero { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: var(--sp-5); align-items: start; }
.ai-hero h2 { font-size: 26px; line-height: 1.25; margin: var(--sp-2) 0; }
.ai-hero p { font-size: var(--fs-sm); color: var(--text-2); line-height: 1.6; }
.ai-hero-kpis { display: grid; gap: var(--sp-3); }
.ai-badge { display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-xs); font-weight: 700; color: var(--text);
    padding: 4px 10px; border-radius: 999px; border: 1px dashed var(--border-strong); background: var(--surface-2); }
.ai-mono { font-family: ui-monospace, Consolas, monospace; font-size: 18px; }

.ai-latest { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: var(--sp-4); }
.ai-map-wrap { position: relative; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--border); min-height: 560px; }
#ai-map { position: absolute; inset: 0; }
.ai-map-legend { position: absolute; left: 10px; bottom: 10px; display: flex; flex-direction: column; gap: 3px; font-size: 11px; color: var(--text-2);
    background: var(--surface-1); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 8px 10px; }
.ai-map-legend span { display: inline-flex; align-items: center; gap: 6px; }
.ai-map-legend i { width: 14px; height: 10px; border-radius: 2px; display: inline-block; }
.ai-alarm-swatch { border: 2px solid #fff; background: transparent; }
.ai-rank { max-height: 560px; overflow: auto; padding: 0 var(--sp-3); }
.ai-rank tr[data-prov] { cursor: pointer; }
.ai-rank tr[data-prov]:hover td { background: var(--surface-3); }
.ai-prob { display: inline-flex; align-items: center; gap: 8px; font-variant-numeric: tabular-nums; }
.ai-prob-bar { width: 70px; height: 6px; border-radius: 3px; background: var(--surface-3); overflow: hidden; display: inline-block; }
.ai-prob-bar > span { display: block; height: 100%; background: #3987e5; border-radius: 0 3px 3px 0; }
.ai-alarm-tag { font-size: 11px; font-weight: 700; padding: 1px 6px; border-radius: 999px; border: 1px solid #fff; color: var(--text); }

.ai-steps { list-style: none; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--sp-3); counter-reset: s; }
.ai-steps li { position: relative; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r-md); padding: var(--sp-4) var(--sp-3) var(--sp-3);
    display: flex; flex-direction: column; gap: 6px; font-size: var(--fs-xs); color: var(--text-2); line-height: 1.5; }
.ai-steps li > i { color: var(--accent); font-size: 18px; }
.ai-steps li b { color: var(--text); font-size: var(--fs-sm); }
.ai-step-num { position: absolute; top: 10px; right: 12px; font-size: 22px; font-weight: 800; color: var(--surface-3); }

.ai-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sp-4); }
.ai-drivers { display: flex; flex-direction: column; gap: 10px; }
.ai-driver { display: grid; grid-template-columns: minmax(0, 1fr); gap: 3px; }
.ai-driver-label { font-size: var(--fs-sm); color: var(--text); }
.ai-driver-bar { height: 8px; border-radius: 4px; background: var(--surface-3); overflow: hidden; }
.ai-driver-bar > span { display: block; height: 100%; background: #3987e5; border-radius: 0 4px 4px 0; }

.ai-acc { display: flex; flex-direction: column; gap: 8px; }
.ai-plain { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--sp-3); }
.ai-plain > div { background: var(--surface-3); border-radius: var(--r-sm); padding: var(--sp-3); display: flex; flex-direction: column; gap: 4px; }
.ai-plain b { font-size: 22px; font-variant-numeric: tabular-nums; }
.ai-plain span { font-size: var(--fs-xs); color: var(--text-2); line-height: 1.45; }
.ai-bars { display: flex; flex-direction: column; gap: 8px; }
.ai-bar-row { display: grid; grid-template-columns: 220px minmax(0, 1fr) 44px; gap: 10px; align-items: center; font-size: var(--fs-xs); }
.ai-bar-label { display: inline-flex; align-items: center; gap: 6px; color: var(--text-2); }
.ai-bar-label i, .ai-legend i { width: 10px; height: 10px; border-radius: 2px; display: inline-block; }
.ai-bar-track { height: 14px; background: var(--surface-3); border-radius: 4px; overflow: hidden; }
.ai-bar-track > span { display: block; height: 100%; border-radius: 0 4px 4px 0; }
.ai-bar-val { text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--text); }

.ai-chart { width: 100%; height: auto; display: block; }
.ai-chart .grid { stroke: var(--border); stroke-width: 1; }
.ai-chart .ax { fill: var(--text-3); font-size: 11px; }
.ai-chart .hl { stroke: var(--text-3); stroke-width: 1; stroke-dasharray: 3 3; }
.ai-legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: var(--fs-xs); color: var(--text-2); margin-top: 6px; }
.ai-legend span { display: inline-flex; align-items: center; gap: 6px; }
.ai-legend i.line { height: 2px; width: 16px; }

.ai-gate, .ai-limits { list-style: none; display: flex; flex-direction: column; gap: 8px; font-size: var(--fs-sm); color: var(--text-2); }
.ai-gate li { display: flex; gap: 10px; align-items: baseline; }
.ai-limits li { padding-left: 14px; position: relative; line-height: 1.5; }
.ai-limits li::before { content: ''; position: absolute; left: 2px; top: 9px; width: 4px; height: 4px; border-radius: 50%; background: var(--text-3); }
.ai-ok { color: var(--st-online); }
.ai-no { color: var(--st-faulty); }
.ai-wait { color: var(--st-nodata); }

@media (max-width: 1000px) {
    .ai-hero, .ai-latest, .ai-two { grid-template-columns: 1fr; }
    .ai-steps { grid-template-columns: 1fr 1fr; }
    .ai-plain { grid-template-columns: 1fr; }
    .ai-bar-row { grid-template-columns: 140px minmax(0, 1fr) 40px; }
    .ss-nav { justify-content: flex-start; order: 3; width: 100%; }
    .ai-map-wrap { min-height: 420px; }
}