/* PRAVAH operational dashboard - shared styles.
   Design intent: a serious government flood-operations console, not a demo UI.
   Dense, legible, restrained color use reserved for risk state. */

:root {
  --navy-950: #0a1420;
  --navy-900: #0f1e30;
  --navy-800: #16293e;
  --navy-700: #1e3650;
  --navy-600: #2b4864;
  --slate-500: #5b7186;
  --slate-400: #7f93a6;
  --slate-300: #aab9c6;
  --slate-100: #e7edf2;
  --bg: #eef2f5;
  --panel: #ffffff;
  --panel-border: #d7e0e7;
  --ink: #10202f;
  --ink-dim: #4b5f6f;
  --mono: "SF Mono", "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --c-normal: #2f8f5b;
  --c-watch: #b98a0a;
  --c-alert: #d9711a;
  --c-high: #c8401f;
  --c-critical: #a3172f;
  --c-normal-bg: #e5f4ec;
  --c-watch-bg: #fbf1d9;
  --c-alert-bg: #fbe6d5;
  --c-high-bg: #f8d9cf;
  --c-critical-bg: #f4d1d7;

  --rising: #c8401f;
  --falling: #2f6fa8;
  --steady: #5b7186;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.45;
}
a { color: inherit; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---------- top bar ---------- */
.topbar {
  background: linear-gradient(180deg, var(--navy-900), var(--navy-950));
  color: var(--slate-100);
  padding: 10px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  border-bottom: 3px solid var(--navy-600);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar .brand {
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 15px;
  white-space: nowrap;
}
.topbar .brand small {
  display: block;
  font-weight: 400;
  font-size: 10.5px;
  color: var(--slate-300);
  letter-spacing: 0.02em;
}
.topbar nav { display: flex; gap: 4px; margin-left: 8px; }
.topbar nav a {
  text-decoration: none;
  color: var(--slate-300);
  padding: 7px 12px;
  border-radius: 5px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.topbar nav a:hover, .topbar nav a.active { background: var(--navy-700); color: #fff; }
.topbar .spacer { flex: 1; }
.topbar .demo-badge {
  background: #5a1414;
  color: #ffd7d7;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 4px 9px;
  border-radius: 4px;
  border: 1px solid #7a1f1f;
}
.topbar .clock {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate-300);
  text-align: right;
}
.topbar .clock b { color: #fff; }
.topbar .sim-controls { display: flex; gap: 6px; align-items: center; }
.topbar button {
  background: var(--navy-700);
  color: var(--slate-100);
  border: 1px solid var(--navy-600);
  border-radius: 5px;
  padding: 6px 10px;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
}
.topbar button:hover { background: var(--navy-600); }

@media (max-width: 860px) {
  .topbar { padding: 10px 14px; gap: 8px 12px; }
  .topbar .brand small { display: none; }
  .topbar nav { gap: 2px; margin-left: 0; }
  .topbar nav a { padding: 6px 8px; font-size: 11.5px; }
  .topbar .spacer { flex-basis: 100%; height: 0; }
  .topbar .clock { text-align: left; }
}

.wrap { max-width: 1500px; margin: 0 auto; padding: 16px 20px 60px; }

svg { max-width: 100%; height: auto; display: block; }

/* ---------- layout ---------- */
.grid { display: grid; gap: 14px; }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
.layout-main-rail { display: grid; grid-template-columns: minmax(0,1fr) 340px; gap: 16px; align-items: start; }
.layout-main-rail > * { min-width: 0; }
.chain-grid { display: grid; grid-template-columns: 300px minmax(0,1fr); gap: 16px; align-items: start; }
.chain-grid > * { min-width: 0; }
@media (max-width: 1050px) { .layout-main-rail { grid-template-columns: 1fr; } .cols-3, .cols-4 { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 700px) { .chain-grid { grid-template-columns: minmax(0,1fr); } .cols-3, .cols-4 { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 14px 16px;
}
.panel + .panel { margin-top: 14px; }
.panel h2 {
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
  margin: 0 0 10px;
  font-weight: 700;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 10px;
}
.panel h2 .hint { text-transform: none; font-weight: 400; color: var(--slate-400); font-size: 11px; }
.section-title { font-size: 18px; font-weight: 700; margin: 4px 0 14px; }

/* ---------- stat tiles ---------- */
.stat-tile {
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 12px 14px;
  background: var(--panel);
}
.stat-tile .label { font-size: 11px; color: var(--ink-dim); text-transform: uppercase; letter-spacing: 0.04em; }
.stat-tile .value { font-family: var(--mono); font-size: 22px; font-weight: 700; margin-top: 4px; }
.stat-tile .sub { font-size: 11.5px; color: var(--ink-dim); margin-top: 3px; }

/* ---------- badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 9px; border-radius: 999px; font-size: 11px; font-weight: 700;
  letter-spacing: 0.03em; white-space: nowrap;
}
.badge-NORMAL { background: var(--c-normal-bg); color: var(--c-normal); }
.badge-WATCH { background: var(--c-watch-bg); color: var(--c-watch); }
.badge-ALERT { background: var(--c-alert-bg); color: var(--c-alert); }
.badge-HIGH_RISK { background: var(--c-high-bg); color: var(--c-high); }
.badge-CRITICAL { background: var(--c-critical-bg); color: var(--c-critical); }
.badge-OK { background: var(--c-normal-bg); color: var(--c-normal); }
.badge-DEGRADED { background: var(--c-watch-bg); color: var(--c-watch); }
.badge-CRITICAL_Q { background: var(--c-critical-bg); color: var(--c-critical); }
.badge-RISING { background: var(--c-alert-bg); color: var(--rising); }
.badge-FALLING { background: #dceaf6; color: var(--falling); }
.badge-STEADY { background: var(--slate-100); color: var(--steady); }
.badge-HIGH { background: var(--c-normal-bg); color: var(--c-normal); }
.badge-MEDIUM { background: var(--c-watch-bg); color: var(--c-watch); }
.badge-LOW { background: var(--c-critical-bg); color: var(--c-high); }
.badge-outline { background: none; border: 1px solid var(--panel-border); color: var(--ink-dim); }

/* ---------- tables ---------- */
table.data { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.data th {
  text-align: left; font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--ink-dim); border-bottom: 1px solid var(--panel-border); padding: 6px 8px; font-weight: 700;
}
table.data td { padding: 7px 8px; border-bottom: 1px solid #eef1f4; font-family: var(--mono); }
table.data tr:last-child td { border-bottom: none; }
table.data tr:hover td { background: #f7fafc; }
table.data td.txt { font-family: var(--sans); }

/* ---------- chain schematic ---------- */
.chain-station { cursor: pointer; }
.chain-station:hover .chain-node { stroke-width: 3.5; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 11px; color: var(--ink-dim); margin-top: 10px; }
.legend .sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; }

/* ---------- misc ---------- */
.muted { color: var(--ink-dim); }
.small { font-size: 11.5px; }
.demo-note {
  font-size: 11px; color: #7a4a00; background: #fff6e0; border: 1px solid #f0dca0;
  border-radius: 6px; padding: 7px 10px; margin-bottom: 12px;
}
.flex { display: flex; align-items: center; }
.flex-between { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 10px; }
.flex-between > * { min-width: 0; }
.gap-8 { gap: 8px; } .gap-14 { gap: 14px; }
select, .btn {
  font-family: var(--sans); font-size: 12.5px; border-radius: 6px; border: 1px solid var(--panel-border);
  background: #fff; padding: 7px 10px; color: var(--ink);
}
.btn { cursor: pointer; font-weight: 600; }
.btn:hover { background: #f4f7f9; }
.btn-primary { background: var(--navy-800); color: #fff; border-color: var(--navy-800); }
.btn-primary:hover { background: var(--navy-700); }
.station-link { text-decoration: none; color: var(--navy-800); font-weight: 600; }
.station-link:hover { text-decoration: underline; }
.loading { color: var(--slate-400); font-size: 12px; padding: 10px 0; }
.footer-note { color: var(--slate-400); font-size: 11px; text-align: center; margin-top: 30px; }
hr.rule { border: none; border-top: 1px solid var(--panel-border); margin: 12px 0; }