/* PoolSentry — instrument panel for a desert pool.
   Deep-water teal darks, mineral-white ink, chlorinated-teal data, desert-sun amber for heat/warnings. */

:root {
  --bg: #0b1418;
  --panel: #101e24;
  --panel-2: #0d181d;
  --line: #1d3038;
  --ink: #d9e6e4;
  --dim: #7a949b;
  --water: #35c4cf;
  --water-soft: rgba(53, 196, 207, 0.14);
  --sun: #e8b44c;
  --alert: #e2694e;
  --ok: #6fcf8e;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "Space Grotesk", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 15px; line-height: 1.45; }

header {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  padding: 14px 22px; border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #0e1a20, var(--bg));
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.mark { width: 12px; height: 12px; border-radius: 3px 12px 12px 12px; background: var(--water); align-self: center; box-shadow: 0 0 14px rgba(53,196,207,.5); }
h1 { font-size: 19px; font-weight: 600; letter-spacing: 0.04em; margin: 0; }
.sub { color: var(--dim); font-size: 13px; }
nav { display: flex; gap: 4px; }
.tab {
  background: none; border: 1px solid transparent; color: var(--dim); font-family: var(--sans);
  font-size: 14px; padding: 7px 14px; border-radius: 8px; cursor: pointer;
}
.tab:hover { color: var(--ink); }
.tab.active { color: var(--ink); border-color: var(--line); background: var(--panel); }

main { max-width: 1180px; margin: 0 auto; padding: 22px; }
.pane { display: none; }
.pane.active { display: block; }
.hidden { display: none !important; }

h2 { font-size: 17px; font-weight: 600; margin: 0 0 12px; }
h3 { font-size: 14px; font-weight: 600; margin: 0 0 12px; color: var(--ink); letter-spacing: 0.02em; }
.dim { color: var(--dim); font-weight: 400; }
.small { font-size: 12.5px; }
.mono { font-family: var(--mono); }

.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 16px 18px; margin-bottom: 16px;
}
.row-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 4px 0 12px; }
.row-head h2, .row-head h3 { margin: 0; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
@media (max-width: 860px) { .grid-2 { grid-template-columns: 1fr; } }

/* ---- reading tiles ---- */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(148px, 1fr)); gap: 12px; margin-bottom: 16px; }
.tile { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.tile .label { font-size: 11.5px; letter-spacing: 0.09em; text-transform: uppercase; color: var(--dim); }
.tile .value { font-family: var(--mono); font-size: 27px; font-weight: 600; margin: 4px 0 2px; color: var(--water); }
.tile.warn .value { color: var(--sun); }
.tile.bad .value { color: var(--alert); }
.tile .meta { font-size: 12px; color: var(--dim); font-family: var(--mono); }

/* ---- CSI meter (signature) ---- */
.si-card { padding-bottom: 22px; }
#si-value { font-size: 22px; font-weight: 600; }
.si-meter { position: relative; height: 46px; margin-top: 8px; }
.si-meter::before {
  content: ""; position: absolute; top: 14px; left: 0; right: 0; height: 10px; border-radius: 5px;
  background: linear-gradient(90deg, var(--alert) 0%, #3a7f8a 32%, var(--water) 50%, #b99a4e 68%, var(--sun) 100%);
  opacity: 0.85;
}
.si-band { position: absolute; top: 10px; height: 18px; border: 1.5px solid var(--ink); border-radius: 6px; opacity: 0.65; }
.si-needle {
  position: absolute; top: 4px; width: 3px; height: 30px; background: var(--ink); border-radius: 2px;
  box-shadow: 0 0 8px rgba(217,230,228,.6); transition: left 0.5s ease;
}
.si-labels { position: absolute; top: 32px; left: 0; right: 0; display: flex; justify-content: space-between; font-size: 11px; color: var(--dim); letter-spacing: 0.06em; text-transform: uppercase; }

/* ---- plan ---- */
.dose { display: flex; align-items: baseline; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.dose:last-of-type { border-bottom: 0; }
.dose .amt { font-family: var(--mono); font-size: 19px; font-weight: 600; color: var(--water); white-space: nowrap; min-width: 110px; }
.dose .what { font-weight: 500; }
.dose .why { color: var(--dim); font-size: 12.5px; }
.plan-foot { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.nodose { color: var(--ok); padding: 8px 0; }

/* ---- warnings ---- */
.warning { border-left: 3px solid var(--sun); background: var(--panel-2); border-radius: 0 10px 10px 0; padding: 10px 14px; margin-bottom: 10px; font-size: 13.5px; }
.warning.alert { border-left-color: var(--alert); }
.warning.info { border-left-color: var(--water); }
.warning .code { font-family: var(--mono); font-size: 11px; color: var(--dim); text-transform: uppercase; letter-spacing: 0.07em; margin-right: 8px; }

/* ---- model status ---- */
.mrow { display: flex; justify-content: space-between; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.mrow:last-child { border-bottom: 0; }
.badge { font-family: var(--mono); font-size: 11px; padding: 2px 8px; border-radius: 20px; border: 1px solid var(--line); text-transform: uppercase; letter-spacing: 0.05em; }
.badge.calibrated { color: var(--ok); border-color: rgba(111,207,142,.4); }
.badge.learning { color: var(--sun); border-color: rgba(232,180,76,.4); }
.badge.noisy, .badge.no-data, .badge.low-data { color: var(--alert); border-color: rgba(226,105,78,.4); }

/* ---- forms ---- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 14px; }
.form-grid.four { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.form-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--dim); }
.form-grid .wide { grid-column: 1 / -1; }
.form-grid .check { flex-direction: row; align-items: center; gap: 8px; color: var(--ink); font-size: 13.5px; }
input, select {
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px; color: var(--ink);
  font-family: var(--mono); font-size: 14px; padding: 8px 10px; width: 100%;
}
input[type="checkbox"] { width: auto; }
input:focus, select:focus, .btn:focus, .tab:focus { outline: 2px solid var(--water); outline-offset: 1px; }

.btn {
  background: var(--panel-2); border: 1px solid var(--line); color: var(--ink); font-family: var(--sans);
  font-size: 14px; font-weight: 500; padding: 9px 16px; border-radius: 9px; cursor: pointer;
}
.btn:hover { border-color: var(--water); }
.btn.primary { background: var(--water-soft); border-color: rgba(53,196,207,.5); color: var(--water); }
.btn.primary:hover { background: rgba(53,196,207,.22); }
.btn.danger { color: var(--alert); font-size: 12px; padding: 4px 9px; }

/* ---- tables ---- */
table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12.5px; }
th { text-align: left; color: var(--dim); font-weight: 500; padding: 6px 8px; border-bottom: 1px solid var(--line); font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; }
td { padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.miss { color: var(--sun); }

canvas { max-height: 260px; }

@media (prefers-reduced-motion: reduce) { .si-needle { transition: none; } }

/* ---- calendar ---- */
.week-head { font-size: 12px; letter-spacing: 0.09em; text-transform: uppercase; color: var(--dim); margin: 22px 0 10px; border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.event { display: grid; grid-template-columns: 74px 1fr; gap: 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 13px 16px; margin-bottom: 10px; }
.event .when { font-family: var(--mono); }
.event .dow { font-size: 12px; color: var(--dim); text-transform: uppercase; letter-spacing: 0.05em; }
.event .dom { font-size: 21px; font-weight: 600; }
.event-title { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; font-weight: 600; }
.event .notes { color: var(--dim); font-size: 13.5px; }
.event .post { color: var(--dim); font-size: 12px; font-family: var(--mono); margin-top: 6px; }
.badge.dose { color: var(--water); border-color: rgba(53,196,207,.4); }
.badge.watch { color: var(--sun); border-color: rgba(232,180,76,.4); }
.badge.storm, .badge.drain { color: var(--alert); border-color: rgba(226,105,78,.4); }
.badge.test { color: var(--ok); border-color: rgba(111,207,142,.4); }
.event .dose { padding: 6px 0; }
.event .dose .amt { font-size: 16px; min-width: 96px; }

/* ---- auth & account ---- */
.auth-card { max-width: 420px; margin: 8vh auto 0; }
#user-box { display: flex; align-items: center; gap: 8px; }
#pool-switch { width: auto; min-width: 140px; }
.member-row { display: flex; justify-content: space-between; align-items: center; padding: 7px 0; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.member-row:last-child { border-bottom: 0; }
.invite-code { font-family: var(--mono); font-size: 15px; color: var(--water); letter-spacing: 0.06em; }
a { color: var(--water); }

/* ---- location map ---- */
#loc-map { height: 260px; border-radius: 10px; border: 1px solid var(--line); margin-top: 8px; background: var(--panel-2); }
.loc-tools { display: flex; gap: 8px; }
.loc-tools input { flex: 1; }
.leaflet-container { font-family: var(--sans); }

.badge.task { color: var(--ok); border-color: rgba(111,207,142,.4); }