:root {
  --bg: #0f1117;
  --card: #1a1d27;
  --card2: #20232f;
  --border: #2e3244;
  --text: #e4e6f0;
  --muted: #7880a0;
  --accent: #4f8ef7;
  --danger: #e84444;
  --ok: #2ec77a;
  --warn: #f0b132;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: 'Segoe UI', system-ui, sans-serif; font-size: 14px; min-height: 100vh; }

/* ── Header ── */
header { background: var(--card); border-bottom: 1px solid var(--border); padding: 0 24px; height: 64px; display: flex; align-items: center; position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.header-title { display: flex; align-items: center; gap: 12px; }
.logo { font-size: 28px; line-height: 1; }
h1 { font-size: 18px; font-weight: 700; }
.subtitle { font-size: 12px; color: var(--muted); }

.badge { padding: 6px 16px; border-radius: 20px; font-weight: 700; font-size: 13px; letter-spacing: .3px; }
.badge-ok      { background: #1a3d2b; color: var(--ok);     border: 1px solid var(--ok); }
.badge-danger  { background: #3d1a1a; color: var(--danger);  border: 1px solid var(--danger); }
.badge-loading { background: var(--card2); color: var(--muted); border: 1px solid var(--border); }

.alert-banner { margin: 16px 24px 0; padding: 14px 20px; border-radius: var(--radius); font-weight: 700; font-size: 15px; text-align: center; animation: pulse 2s ease-in-out infinite; }
.alert-banner.danger { background: #3d1a1a; border: 2px solid var(--danger); color: var(--danger); }
.alert-banner.ok     { background: #1a3d2b; border: 2px solid var(--ok);     color: var(--ok); }
.hidden { display: none !important; }

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.7} }

/* ── Layout ── */
main { padding: 20px 24px 32px; max-width: 1400px; margin: 0 auto; }
.grid-main { display: grid; grid-template-columns: 1fr 380px; gap: 16px; }
@media (max-width: 900px) { .grid-main { grid-template-columns: 1fr; } }
.col-right { display: flex; flex-direction: column; gap: 16px; }

/* ── Card ── */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.card h2 { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); margin-bottom: 12px; }
.card-header h2 { margin-bottom: 0; }
.card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; }
.muted { color: var(--muted); font-size: 12px; }

/* ── Camera ── */
.camera-wrap { position: relative; background: #000; border-radius: 8px; overflow: hidden; min-height: 180px; display: flex; align-items: center; justify-content: center; }
#camera-img { width: 100%; display: block; border-radius: 8px; }
.conf-overlay { position: absolute; top: 10px; right: 10px; background: rgba(0,0,0,.75); padding: 6px 12px; border-radius: 6px; font-weight: 700; font-size: 13px; }

/* ── Scores ── */
.detection-text { font-size: 15px; font-weight: 600; margin-bottom: 14px; min-height: 20px; }
.score-bars { display: flex; flex-direction: column; gap: 8px; }
.score-row { display: grid; grid-template-columns: 150px 1fr 40px; align-items: center; gap: 8px; font-size: 12px; }
.bar-wrap { background: var(--card2); border-radius: 4px; height: 8px; overflow: hidden; }
.bar { height: 100%; border-radius: 4px; background: var(--accent); transition: width .4s ease; width: 0%; }

/* ── Stats ── */
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.stat-box { background: var(--card2); border-radius: 8px; padding: 12px; text-align: center; }
.stat-val { font-size: 22px; font-weight: 800; color: var(--accent); }
.stat-label { font-size: 11px; color: var(--muted); margin-top: 2px; }

/* ── Weather ── */
.weather-current { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; }
.weather-icon { font-size: 42px; line-height: 1; }
.w-desc { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.w-numbers { display: flex; flex-wrap: wrap; gap: 12px; font-size: 12px; color: var(--muted); }
.precip-label { font-size: 11px; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: .5px; }
.precip-chart { display: flex; align-items: flex-end; gap: 2px; height: 60px; }
.precip-bar { flex: 1; border-radius: 2px 2px 0 0; background: var(--accent); opacity: .8; min-height: 2px; }
.precip-bar.heavy { background: var(--danger); }
.precip-summary { margin-top: 6px; font-size: 12px; color: var(--muted); }

/* ── History ── */
.card-history { margin-top: 16px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th { padding: 8px 10px; text-align: left; color: var(--muted); font-weight: 600; font-size: 11px; text-transform: uppercase; border-bottom: 1px solid var(--border); }
tbody td { padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--card2); }
.tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 700; }
.tag-water { background: #3d1a1a; color: var(--danger); }
.tag-ok    { background: #1a3d2b; color: var(--ok); }
.tag-error { background: #2e2000; color: var(--warn); }
.history-pagination { display: flex; align-items: center; gap: 12px; margin-top: 12px; justify-content: center; font-size: 13px; color: var(--muted); }

/* ── Config ── */
.card-config { margin-top: 16px; }
.config-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 700px) { .config-grid { grid-template-columns: 1fr; } }
.config-group-full { grid-column: 1 / -1; }
.config-group { display: flex; flex-direction: column; gap: 6px; }
.config-group label { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .4px; }
input[type="number"], input[type="text"] {
  background: var(--card2); border: 1px solid var(--border); color: var(--text);
  border-radius: 6px; padding: 8px 12px; font-size: 14px; outline: none; transition: border-color .2s;
}
input:focus { border-color: var(--accent); }
.roi-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.roi-preview-wrap { margin-top: 8px; }
.roi-preview-wrap canvas { max-width: 100%; border-radius: 6px; border: 1px solid var(--border); display: block; }
.ref-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }
.ref-actions input[type="file"] { font-size: 12px; color: var(--muted); }
.ref-preview { max-height: 160px; width: auto; max-width: 100%; border-radius: 6px; border: 1px solid var(--border); margin-top: 4px; display: block; }
.config-actions { margin-top: 20px; display: flex; align-items: center; gap: 14px; }
.config-msg { font-size: 13px; }
.config-msg.ok  { color: var(--ok); }
.config-msg.err { color: var(--danger); }

/* ── Buttons ── */
.btn { background: var(--card2); border: 1px solid var(--border); color: var(--text); padding: 7px 14px; border-radius: 6px; cursor: pointer; font-size: 13px; transition: border-color .2s, background .2s; white-space: nowrap; }
.btn:hover { border-color: var(--accent); background: #252840; }
.btn:disabled { opacity: .4; cursor: default; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-primary { background: #1e3a6e; border-color: var(--accent); color: var(--accent); font-weight: 700; }
.btn-primary:hover { background: #24478a; }
.btn-close { background: none; border: none; color: var(--muted); font-size: 18px; cursor: pointer; padding: 4px 8px; border-radius: 4px; }
.btn-close:hover { color: var(--text); background: var(--card2); }

/* ══════════════════════════════════════
   SENSORS
══════════════════════════════════════ */
.card-sensors { margin-top: 16px; }
.sensor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 4px; }
@media (max-width: 900px) { .sensor-grid { grid-template-columns: 1fr; } }

.sensor-panel { background: var(--card2); border-radius: 8px; padding: 14px; display: flex; flex-direction: column; gap: 8px; }
.sensor-panel-title { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); }
.sensor-panel-title--gap { margin-top: 12px; }
.sensor-raw-detail { margin-top: 4px; font-size: 11px; }

/* Water level bars */
.water-channels { display: flex; flex-direction: column; gap: 6px; }
.wch { display: grid; grid-template-columns: 60px 1fr 60px; align-items: center; gap: 8px; }
.wch-bar-wrap { background: var(--border); border-radius: 4px; height: 10px; overflow: hidden; }
.wch-bar { height: 100%; border-radius: 4px; width: 0%; transition: width .5s, background .5s; background: var(--ok); }
.wch-bar.wet { background: var(--danger); width: 100% !important; animation: pulse 1.5s ease-in-out infinite; }
.wch-bar.dry { background: var(--ok); width: 100% !important; }
.wch-bar.unknown { background: var(--border); width: 40% !important; }
.wch-label { font-size: 12px; color: var(--muted); text-align: right; }
.wch-state { font-size: 11px; font-weight: 700; }
.wch-state.wet { color: var(--danger); }
.wch-state.dry { color: var(--ok); }
.water-max { margin-top: 6px; font-size: 13px; font-weight: 700; text-align: center; padding: 6px; border-radius: 6px; background: var(--card); }
.water-max.alert { background: #3d1a1a; color: var(--danger); }

/* Big value display */
.big-value { font-size: 32px; font-weight: 800; color: var(--accent); line-height: 1; }
.big-value.alert { color: var(--danger); }
.big-sub { font-size: 12px; }

.sensor-alert { background: #3d1a1a; color: var(--danger); border-radius: 6px; padding: 6px 10px; font-size: 13px; font-weight: 700; }
.ultrasonic-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* LTE grid */
.lte-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 12px; }
.lte-item { display: flex; justify-content: space-between; font-size: 12px; padding: 2px 0; border-bottom: 1px solid var(--border); }
.lte-key { color: var(--muted); }
.lte-val { font-weight: 600; font-family: monospace; }

/* Sensor history tabs */
.sensor-history-tabs { display: flex; gap: 0; margin-top: 16px; border-bottom: 1px solid var(--border); }

/* ── Footer ── */
footer { text-align: center; color: var(--muted); font-size: 12px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; max-width: 1400px; margin: 0 auto; padding: 12px 24px; }

/* ══════════════════════════════════════
   MODALS
══════════════════════════════════════ */
.modal { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.65); }
.modal-box { position: relative; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); display: flex; flex-direction: column; max-height: 92vh; overflow: hidden; }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px 12px; border-bottom: 1px solid var(--border); }
.modal-header h3 { font-size: 16px; font-weight: 700; }
.modal-footer { padding: 12px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 8px; }
.modal-hint { font-size: 12px; color: var(--muted); padding: 8px 20px 0; }

/* ── Detection detail modal ── */
.modal-det { width: min(1020px, 96vw); }
.det-body { display: flex; gap: 0; overflow: auto; max-height: calc(92vh - 130px); }
.det-image-wrap { flex: 0 0 auto; width: 420px; min-height: 240px; background: #0a0b10; display: flex; align-items: center; justify-content: center; position: relative; border-right: 1px solid var(--border); }
.det-image-wrap img { max-width: 420px; max-height: calc(92vh - 160px); object-fit: contain; display: block; }
.det-no-image { color: var(--muted); font-size: 13px; text-align: center; padding: 24px; }
.det-info { flex: 1 1 auto; padding: 16px 20px; overflow-y: auto; display: flex; flex-direction: column; gap: 14px; }
.det-section { background: var(--card2); border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; }
.det-section-title { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); margin-bottom: 10px; }
.det-score-row { display: flex; align-items: center; gap: 8px; font-size: 12px; margin-bottom: 6px; }
.det-score-row > span:first-child { width: 140px; flex-shrink: 0; color: var(--muted); }
.det-score-row .bar-wrap { flex: 1; height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; }
.det-score-row .bar { height: 100%; width: 0%; border-radius: 4px; transition: width .3s; }
.det-score-row > span:last-child { width: 38px; text-align: right; font-family: monospace; font-size: 12px; }
.det-description { font-size: 12px; color: var(--muted); margin-top: 8px; border-top: 1px solid var(--border); padding-top: 8px; }
.det-water-channels { display: flex; gap: 8px; flex-wrap: wrap; }
.det-wch { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 8px 10px; border-radius: 6px; background: var(--card); border: 1px solid var(--border); min-width: 60px; }
.det-wch.wet { border-color: var(--danger); background: #3d1a1a; }
.det-wch.dry { border-color: var(--ok); background: #1a3d2b; }
.det-wch-cm { font-size: 16px; font-weight: 800; }
.det-wch.wet .det-wch-cm { color: var(--danger); }
.det-wch.dry .det-wch-cm { color: var(--ok); }
.det-wch-lbl { font-size: 10px; color: var(--muted); text-transform: uppercase; }
.det-wch-state { font-size: 11px; font-weight: 700; }
.det-wch.wet .det-wch-state { color: var(--danger); }
.det-wch.dry .det-wch-state { color: var(--ok); }
.det-kv { display: flex; gap: 16px; flex-wrap: wrap; font-size: 12px; }
.det-kv-item { display: flex; flex-direction: column; gap: 2px; }
.det-kv-key { color: var(--muted); font-size: 11px; }
.det-kv-val { font-family: monospace; font-weight: 700; font-size: 14px; }
.det-no-sensor { color: var(--muted); font-size: 12px; }
@media (max-width: 780px) { .det-body { flex-direction: column; } .det-image-wrap { width: 100%; border-right: none; border-bottom: 1px solid var(--border); } .det-image-wrap img { max-width: 100%; } }

/* ── ROI Modal ── */
.modal-roi { width: min(860px, 95vw); }
.roi-source-tabs { display: flex; gap: 0; padding: 10px 20px 0; border-bottom: 1px solid var(--border); }
.tab-btn { background: none; border: none; color: var(--muted); padding: 8px 16px; cursor: pointer; font-size: 13px; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-btn:hover { color: var(--text); }
.ftp-mini-list { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 20px; max-height: 110px; overflow-y: auto; border-bottom: 1px solid var(--border); }
.ftp-mini-item { background: var(--card2); border: 1px solid var(--border); border-radius: 4px; padding: 4px 10px; font-size: 12px; cursor: pointer; font-family: monospace; transition: border-color .15s; }
.ftp-mini-item:hover, .ftp-mini-item.selected { border-color: var(--accent); color: var(--accent); }
.roi-canvas-wrap { position: relative; padding: 12px 20px; flex: 1; overflow: hidden; display: flex; align-items: center; justify-content: center; background: #0a0b10; }
#roi-canvas { max-width: 100%; max-height: 420px; cursor: crosshair; display: block; border-radius: 4px; }
.roi-loading { position: absolute; color: var(--muted); font-size: 13px; }
.roi-coords-row { display: flex; align-items: center; gap: 8px; padding: 10px 20px; font-size: 12px; color: var(--muted); border-top: 1px solid var(--border); }
.roi-coords-row input { width: 70px; padding: 4px 8px; font-size: 12px; }

/* ── FTP Browser Modal ── */
.modal-ftp { width: min(900px, 95vw); height: min(600px, 90vh); }
.ftp-browser-layout { display: grid; grid-template-columns: 260px 1fr; flex: 1; overflow: hidden; }
.ftp-file-list { border-right: 1px solid var(--border); overflow-y: auto; padding: 8px; display: flex; flex-direction: column; gap: 2px; }
.ftp-loading { color: var(--muted); font-size: 13px; padding: 12px; text-align: center; }
.ftp-file-item { display: flex; flex-direction: column; padding: 8px 10px; border-radius: 6px; cursor: pointer; border: 1px solid transparent; transition: background .15s, border-color .15s; }
.ftp-file-item:hover { background: var(--card2); }
.ftp-file-item.selected { background: #1e2d4a; border-color: var(--accent); }
.ftp-file-item .fname { font-family: monospace; font-size: 12px; word-break: break-all; }
.ftp-file-item .fsize { font-size: 11px; color: var(--muted); margin-top: 2px; }
.ftp-preview-pane { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 16px; overflow: hidden; gap: 12px; background: #0a0b10; }
.ftp-preview-empty { color: var(--muted); font-size: 13px; }
.ftp-preview-img { max-width: 100%; max-height: 380px; border-radius: 8px; object-fit: contain; }
.ftp-preview-name { font-family: monospace; font-size: 12px; color: var(--muted); }
.ftp-preview-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }