/* SMARTFUZE AQUA v2.0.0 - industrial aquaculture interface */
:root {
  --bg: #050B11;
  --bg-2: #07131F;
  --panel: rgba(11, 29, 45, 0.58);
  --panel-solid: #0A1A29;
  --panel-hi: rgba(18, 44, 66, 0.62);
  --line: rgba(110, 190, 225, 0.12);
  --line-hi: rgba(110, 210, 235, 0.26);
  --text: #E4F2F7;
  --text-2: #A9C2CF;
  --muted: #6F8A99;
  --aqua: #35E1C1;
  --sky: #34B8FF;
  --ok: #43E08A;
  --warn: #F4C34F;
  --crit: #FF5E6E;
  --off: #5D7180;
  --glow: 0 0 0 1px rgba(53, 225, 193, 0.18), 0 10px 40px -12px rgba(53, 225, 193, 0.28);
  --r-lg: 18px;
  --r-md: 12px;
  --r-sm: 8px;
  --font: "Bahnschrift", "DIN Alternate", "DIN 2014", "Barlow", "Segoe UI", system-ui, -apple-system, sans-serif;
  --side: 236px;
  --nav-h: 68px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(52, 184, 255, 0.08), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(53, 225, 193, 0.06), transparent 60%),
    linear-gradient(180deg, var(--bg-2), var(--bg) 55%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.45;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--sky); }
:focus-visible { outline: 2px solid var(--sky); outline-offset: 2px; border-radius: 6px; }

/* ---------- shell ---------- */
.shell { display: grid; grid-template-columns: var(--side) 1fr; min-height: 100vh; min-height: 100dvh; }
.sidebar {
  position: sticky; top: 0; height: 100vh; height: 100dvh;
  display: flex; flex-direction: column; gap: 6px;
  padding: 22px 14px 18px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(7, 19, 31, 0.92), rgba(5, 11, 17, 0.92));
  backdrop-filter: blur(14px);
}
.brand { display: flex; align-items: center; gap: 12px; padding: 4px 10px 22px; }
.brand svg { width: 38px; height: 38px; flex: none; }
.brand-text { line-height: 1; }
.brand-text b { display: block; font-size: 17px; letter-spacing: 0.16em; font-weight: 700; }
.brand-text span { display: block; font-size: 22px; letter-spacing: 0.32em; font-weight: 300; color: var(--aqua); margin-top: 3px; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: var(--r-sm);
  color: var(--text-2); text-decoration: none; font-size: 14.5px;
  position: relative;
}
.nav a svg { width: 18px; height: 18px; flex: none; opacity: 0.8; }
.nav a:hover { background: rgba(110, 190, 225, 0.06); color: var(--text); }
.nav a.active { color: var(--text); background: linear-gradient(90deg, rgba(53, 225, 193, 0.14), rgba(53, 225, 193, 0.02)); }
.nav a.active::before { content: ""; position: absolute; left: -14px; top: 9px; bottom: 9px; width: 3px; border-radius: 3px; background: var(--aqua); box-shadow: 0 0 12px var(--aqua); }
.nav a.active svg { color: var(--aqua); opacity: 1; }
.nav .badge { margin-left: auto; }
.sidebar-foot { margin-top: auto; padding: 12px; font-size: 12px; color: var(--muted); border-top: 1px solid var(--line); }
.sidebar-foot .conn { display: flex; align-items: center; gap: 8px; color: var(--text-2); margin-bottom: 4px; }

.main { min-width: 0; padding: 22px 28px 32px; display: flex; flex-direction: column; gap: 18px; }
.topbar { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.topbar h1 { margin: 0; font-size: 26px; font-weight: 600; letter-spacing: 0.01em; }
.topbar .sub { color: var(--muted); font-size: 13.5px; }
.topbar .spacer { flex: 1; }
.mobile-brand { display: none; }

/* ---------- primitives ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  backdrop-filter: blur(16px) saturate(120%);
  -webkit-backdrop-filter: blur(16px) saturate(120%);
  padding: 18px 20px;
  min-width: 0;
}
.panel-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.panel-head h2 { margin: 0; font-size: 15px; font-weight: 600; color: var(--text); }
.panel-head .hint { color: var(--muted); font-size: 12.5px; }
.panel-head .spacer { flex: 1; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.grid { display: grid; gap: 16px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 4px 10px; border-radius: 999px; font-size: 12.5px; white-space: nowrap;
  background: rgba(110, 190, 225, 0.08); border: 1px solid var(--line); color: var(--text-2);
}
.chip .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.chip.ok { color: var(--ok); border-color: rgba(67, 224, 138, 0.3); background: rgba(67, 224, 138, 0.08); }
.chip.warn { color: var(--warn); border-color: rgba(244, 195, 79, 0.3); background: rgba(244, 195, 79, 0.08); }
.chip.crit { color: var(--crit); border-color: rgba(255, 94, 110, 0.35); background: rgba(255, 94, 110, 0.09); }
.chip.off { color: var(--muted); }
.chip.info { color: var(--sky); border-color: rgba(52, 184, 255, 0.3); background: rgba(52, 184, 255, 0.08); }
.chip.ok .dot { box-shadow: 0 0 0 0 rgba(67, 224, 138, 0.6); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(67, 224, 138, 0.55); } 70% { box-shadow: 0 0 0 8px rgba(67, 224, 138, 0); } 100% { box-shadow: 0 0 0 0 rgba(67, 224, 138, 0); } }
.badge { min-width: 20px; height: 20px; padding: 0 6px; border-radius: 10px; font-size: 11.5px; display: inline-grid; place-items: center; background: var(--crit); color: #fff; font-weight: 600; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 16px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--line-hi); background: rgba(110, 190, 225, 0.06); color: var(--text);
  font-size: 14px; font-weight: 500; text-decoration: none; white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}
.btn:hover { background: rgba(110, 190, 225, 0.12); border-color: rgba(110, 210, 235, 0.4); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: linear-gradient(180deg, #3FE8C9, #22C6AA); color: #03211C; border-color: transparent; font-weight: 600; box-shadow: 0 8px 24px -10px rgba(53, 225, 193, 0.7); }
.btn.primary:hover { background: linear-gradient(180deg, #5AF0D5, #2AD3B6); }
.btn.danger { color: var(--crit); border-color: rgba(255, 94, 110, 0.35); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.sm { height: 32px; padding: 0 12px; font-size: 13px; border-radius: 8px; }
.btn[disabled], .btn.disabled { opacity: 0.38; cursor: not-allowed; pointer-events: none; }
.btn svg { width: 16px; height: 16px; }

.seg { display: inline-flex; padding: 3px; border-radius: 10px; background: rgba(5, 11, 17, 0.6); border: 1px solid var(--line); }
.seg button { border: 0; background: transparent; padding: 6px 14px; border-radius: 7px; cursor: pointer; color: var(--text-2); font-size: 13.5px; }
.seg button.on { background: rgba(53, 225, 193, 0.16); color: var(--aqua); }

input[type=text], input[type=number], input[type=time], input[type=date], input[type=url], select, textarea {
  width: 100%; height: 40px; padding: 0 12px; border-radius: 9px;
  background: rgba(3, 9, 14, 0.7); border: 1px solid var(--line-hi); color: var(--text); font-size: 14.5px;
}
textarea { height: auto; min-height: 80px; padding: 10px 12px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--aqua); box-shadow: 0 0 0 3px rgba(53, 225, 193, 0.15); }
label.field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-2); min-width: 0; }
label.field small { color: var(--muted); font-size: 12px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.switch { position: relative; width: 42px; height: 24px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; position: absolute; }
.switch span { position: absolute; inset: 0; border-radius: 12px; background: rgba(110, 190, 225, 0.15); border: 1px solid var(--line-hi); transition: 0.2s; cursor: pointer; }
.switch span::after { content: ""; position: absolute; left: 3px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: var(--text-2); transition: 0.2s; }
.switch input:checked + span { background: rgba(53, 225, 193, 0.3); border-color: var(--aqua); }
.switch input:checked + span::after { transform: translateX(18px); background: var(--aqua); }
.switch input:focus-visible + span { outline: 2px solid var(--sky); outline-offset: 2px; }

table.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.tbl th { text-align: left; font-weight: 500; color: var(--muted); padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tbl td { padding: 10px; border-bottom: 1px solid rgba(110, 190, 225, 0.06); vertical-align: middle; }
.tbl tr:last-child td { border-bottom: 0; }
.scroll-x { overflow-x: auto; }

/* ---------- overview ---------- */
.hero { display: flex; align-items: flex-end; gap: 18px; flex-wrap: wrap; }
.hero .pond-title { font-size: 34px; font-weight: 600; letter-spacing: 0.01em; line-height: 1.05; margin: 0; }
.hero .pond-id { color: var(--muted); font-size: 13px; letter-spacing: 0.06em; }
.hero .spacer { flex: 1; }
.waiting {
  display: flex; align-items: center; gap: 14px; padding: 14px 18px; border-radius: var(--r-md);
  border: 1px dashed rgba(52, 184, 255, 0.35); background: rgba(52, 184, 255, 0.05); color: var(--text-2);
}
.waiting .radar { width: 34px; height: 34px; flex: none; border-radius: 50%; border: 1px solid rgba(52, 184, 255, 0.5); position: relative; }
.waiting .radar::after { content: ""; position: absolute; inset: 6px; border-radius: 50%; border: 1px solid rgba(52, 184, 255, 0.35); animation: ping 2.2s ease-out infinite; }
@keyframes ping { from { transform: scale(0.4); opacity: 1; } to { transform: scale(1.6); opacity: 0; } }
.waiting b { color: var(--text); font-weight: 600; }

.metrics { display: grid; grid-template-columns: 1.25fr 1.25fr 1fr 1fr; gap: 16px; }
.metric { position: relative; overflow: hidden; display: flex; flex-direction: column; gap: 10px; min-height: 176px; }
.metric .label { display: flex; align-items: center; gap: 8px; color: var(--text-2); font-size: 14px; }
.metric .label svg { width: 18px; height: 18px; color: var(--aqua); }
.metric .value { font-size: 58px; font-weight: 300; line-height: 1; letter-spacing: -0.02em; font-feature-settings: "tnum"; }
.metric .value .unit { font-size: 22px; color: var(--text-2); margin-left: 4px; font-weight: 400; letter-spacing: 0; }
.metric .value.dash { color: var(--off); }
.metric .foot { margin-top: auto; color: var(--muted); font-size: 12.5px; display: flex; gap: 12px; flex-wrap: wrap; }
.metric.live { border-color: rgba(53, 225, 193, 0.22); box-shadow: var(--glow); }
.metric.state-warn { border-color: rgba(244, 195, 79, 0.4); }
.metric.state-crit { border-color: rgba(255, 94, 110, 0.5); box-shadow: 0 0 0 1px rgba(255, 94, 110, 0.2), 0 10px 40px -14px rgba(255, 94, 110, 0.45); }
.metric .small-value { font-size: 26px; font-weight: 500; line-height: 1.1; }
.metric .kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; font-size: 13px; }
.metric .kv dt { color: var(--muted); }
.metric .kv dd { margin: 0; color: var(--text-2); text-align: right; }
.flash { animation: flash 1.2s ease-out; }
@keyframes flash { 0% { color: var(--aqua); text-shadow: 0 0 18px rgba(53, 225, 193, 0.6); } 100% { color: inherit; text-shadow: none; } }

/* pH spectrum - the signature element */
.ph-scale { position: relative; height: 34px; margin-top: 2px; }
.ph-scale .bar {
  position: absolute; left: 0; right: 0; top: 8px; height: 8px; border-radius: 4px;
  background: linear-gradient(90deg, #E8414E 0%, #F07A3A 14%, #F2B840 25%, #D6DA45 36%, #7FD35A 46%, #35E1C1 54%, #34B8FF 64%, #4C7DF0 76%, #6E5BE0 88%, #8A49C9 100%);
  opacity: 0.85;
}
.ph-scale .safe { position: absolute; top: 4px; height: 16px; border: 1px solid rgba(228, 242, 247, 0.55); border-radius: 5px; }
.ph-scale .needle { position: absolute; top: 0; width: 3px; height: 24px; margin-left: -1.5px; border-radius: 2px; background: #fff; box-shadow: 0 0 10px rgba(255, 255, 255, 0.9); transition: left 0.8s cubic-bezier(.2, .8, .2, 1); }
.ph-scale .ticks { position: absolute; left: 0; right: 0; top: 22px; display: flex; justify-content: space-between; font-size: 10.5px; color: var(--muted); }
.temp-scale .bar { background: linear-gradient(90deg, #4C7DF0, #34B8FF 30%, #35E1C1 50%, #F2B840 75%, #E8414E); }

.overview-lower { display: grid; grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr); gap: 16px; }
.qa { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.qa-btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  height: 92px; border-radius: 14px; cursor: pointer; text-decoration: none;
  background: linear-gradient(180deg, rgba(18, 44, 66, 0.7), rgba(9, 24, 37, 0.7));
  border: 1px solid var(--line-hi); color: var(--text); font-size: 13.5px;
}
.qa-btn svg { width: 24px; height: 24px; color: var(--aqua); }
.qa-btn:hover { border-color: rgba(53, 225, 193, 0.5); }
.qa-btn small { font-size: 11px; color: var(--muted); margin-top: -4px; }
.qa-btn.disabled { cursor: not-allowed; opacity: 0.45; filter: grayscale(0.6); }
.qa-btn.disabled svg { color: var(--muted); }

.list { display: flex; flex-direction: column; }
.list-item { display: flex; align-items: center; gap: 12px; padding: 11px 2px; border-bottom: 1px solid rgba(110, 190, 225, 0.07); }
.list-item:last-child { border-bottom: 0; }
.list-item .grow { flex: 1; min-width: 0; }
.list-item .title { font-size: 14px; }
.list-item .meta { font-size: 12.5px; color: var(--muted); }
.empty { color: var(--muted); font-size: 13.5px; padding: 18px 4px; text-align: center; }
.empty.big { padding: 46px 20px; }
.empty.big b { display: block; color: var(--text); font-size: 17px; font-weight: 500; margin-bottom: 6px; }
.empty code, .help code { background: rgba(110, 190, 225, 0.08); border: 1px solid var(--line); padding: 1px 6px; border-radius: 5px; font-size: 12.5px; color: var(--aqua); word-break: break-all; }

/* ---------- charts ---------- */
.chart { position: relative; width: 100%; }
.chart svg { display: block; width: 100%; overflow: visible; }
.chart .grid-line { stroke: rgba(110, 190, 225, 0.08); stroke-width: 1; }
.chart .axis { fill: var(--muted); font-size: 10.5px; font-family: var(--font); }
.chart .tip {
  position: absolute; pointer-events: none; padding: 6px 10px; border-radius: 8px; font-size: 12px; white-space: nowrap;
  background: rgba(5, 11, 17, 0.92); border: 1px solid var(--line-hi); transform: translate(-50%, -110%); opacity: 0; transition: opacity 0.1s;
}
.chart-empty { height: 160px; display: grid; place-items: center; color: var(--muted); border: 1px dashed var(--line); border-radius: 12px; font-size: 13.5px; text-align: center; padding: 10px; }
.chart-label { display: flex; align-items: baseline; gap: 10px; margin: 6px 0 2px; font-size: 13px; color: var(--text-2); }
.chart-label .sw { width: 10px; height: 3px; border-radius: 2px; display: inline-block; transform: translateY(-3px); }
.stats { display: flex; gap: 22px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.stats b { color: var(--text); font-weight: 500; font-size: 16px; margin-left: 4px; }

/* ---------- cards grids ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.pond-card .vals { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 14px 0; }
.pond-card .vals div { background: rgba(3, 9, 14, 0.4); border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.pond-card .vals span { display: block; color: var(--muted); font-size: 12px; }
.pond-card .vals b { font-size: 28px; font-weight: 400; }
.int-card { display: flex; flex-direction: column; gap: 12px; }
.int-card .top { display: flex; gap: 12px; align-items: flex-start; }
.int-icon { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; flex: none; background: rgba(53, 225, 193, 0.1); border: 1px solid rgba(53, 225, 193, 0.25); color: var(--aqua); }
.int-icon svg { width: 22px; height: 22px; }
.int-card h3 { margin: 0; font-size: 16px; font-weight: 600; }
.int-card .meta { color: var(--muted); font-size: 12.5px; }
.int-card .actions { display: flex; gap: 8px; margin-top: auto; flex-wrap: wrap; }
.provider-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.provider-grid button { display: flex; flex-direction: column; align-items: flex-start; gap: 6px; padding: 14px; border-radius: 12px; text-align: left; cursor: pointer; border: 1px solid var(--line-hi); background: rgba(3, 9, 14, 0.5); }
.provider-grid button:hover { border-color: var(--aqua); }
.provider-grid button svg { width: 22px; height: 22px; color: var(--aqua); }
.provider-grid button span { font-size: 12px; color: var(--muted); }

.channel { display: flex; flex-direction: column; gap: 14px; min-height: 170px; }
.channel .ch { font-size: 12.5px; color: var(--muted); letter-spacing: 0.08em; }
.channel h3 { margin: 0; font-size: 20px; font-weight: 500; }
.channel .toggle-mock { margin-top: auto; height: 46px; border-radius: 12px; border: 1px dashed var(--line-hi); display: grid; place-items: center; color: var(--muted); font-size: 13px; }

.notice { padding: 14px 16px; border-radius: 12px; border: 1px solid rgba(52, 184, 255, 0.25); background: rgba(52, 184, 255, 0.06); color: var(--text-2); font-size: 13.5px; }
.notice.warn { border-color: rgba(244, 195, 79, 0.3); background: rgba(244, 195, 79, 0.06); }

/* ---------- modal / toast / banner ---------- */
.modal-wrap { position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 18px; background: rgba(2, 6, 10, 0.66); backdrop-filter: blur(6px); animation: fade 0.15s; }
.modal { width: min(560px, 100%); max-height: calc(100dvh - 36px); overflow: auto; background: linear-gradient(180deg, #0C2032, #081624); border: 1px solid var(--line-hi); border-radius: 20px; padding: 22px; box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.8); animation: rise 0.2s cubic-bezier(.2, .8, .2, 1); }
.modal.wide { width: min(720px, 100%); }
.modal h3 { margin: 0 0 4px; font-size: 19px; font-weight: 600; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; align-items: center; margin-top: 20px; flex-wrap: wrap; }
.panel .modal-actions { margin-top: 16px; }
.confirm-box { margin: 16px 0 4px; padding: 16px; border-radius: 14px; background: rgba(3, 9, 14, 0.5); border: 1px solid var(--line); display: grid; gap: 10px; }
.confirm-box .big { font-size: 26px; font-weight: 500; }
@keyframes fade { from { opacity: 0; } }
@keyframes rise { from { transform: translateY(14px); opacity: 0; } }
.toasts { position: fixed; right: 20px; bottom: 20px; z-index: 60; display: flex; flex-direction: column; gap: 10px; }
.toast { padding: 12px 16px; border-radius: 12px; background: #0C2032; border: 1px solid var(--line-hi); box-shadow: 0 14px 40px -12px rgba(0, 0, 0, 0.8); font-size: 14px; max-width: 360px; animation: rise 0.2s; }
.toast.err { border-color: rgba(255, 94, 110, 0.5); }
.toast.ok { border-color: rgba(67, 224, 138, 0.45); }
.conn-banner { display: none; padding: 9px 14px; border-radius: 10px; background: rgba(244, 195, 79, 0.1); border: 1px solid rgba(244, 195, 79, 0.35); color: var(--warn); font-size: 13.5px; }
.conn-banner.show { display: block; }

/* ---------- bottom nav (mobile) ---------- */
.bottom-nav { display: none; }
.more-sheet .list-item { cursor: pointer; text-decoration: none; color: var(--text); }
.more-sheet .list-item svg { width: 20px; height: 20px; color: var(--aqua); }

/* ---------- responsive ---------- */
@media (max-width: 1280px) {
  .metrics { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1080px) {
  .overview-lower { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .main { padding: 14px 14px calc(var(--nav-h) + 22px + env(safe-area-inset-bottom)); gap: 14px; }
  .mobile-brand { display: flex; align-items: center; gap: 10px; }
  .mobile-brand svg { width: 30px; height: 30px; }
  .mobile-brand b { font-size: 13px; letter-spacing: 0.14em; font-weight: 700; }
  .mobile-brand span { font-size: 13px; letter-spacing: 0.24em; color: var(--aqua); font-weight: 300; margin-left: 4px; }
  .topbar { gap: 10px; padding-top: env(safe-area-inset-top); }
  .topbar h1 { display: none; }
  .topbar .sub { display: none; }
  .hero .pond-title { font-size: 26px; }
  .metrics { grid-template-columns: 1fr 1fr; gap: 10px; }
  .metric { min-height: 0; padding: 14px; gap: 8px; }
  .metric .value { font-size: 40px; }
  .metric .value .unit { font-size: 16px; }
  .metric.secondary { padding: 12px 14px; }
  .metric.secondary .small-value { font-size: 18px; }
  .metric.secondary .kv { display: none; }
  .ph-scale .ticks span:nth-child(even) { visibility: hidden; }
  .panel { padding: 14px; border-radius: 16px; }
  .qa-btn { height: 78px; font-size: 12.5px; }
  .form-grid { grid-template-columns: 1fr; }
  .provider-grid { grid-template-columns: 1fr 1fr; }
  .toasts { left: 14px; right: 14px; bottom: calc(var(--nav-h) + 16px + env(safe-area-inset-bottom)); }
  .toast { max-width: none; }
  .modal-wrap { place-items: end center; padding: 0; }
  .modal { border-radius: 22px 22px 0 0; padding: 20px 18px calc(20px + env(safe-area-inset-bottom)); max-height: 88dvh; }
  .bottom-nav {
    display: grid; grid-template-columns: repeat(5, 1fr);
    position: fixed; left: 10px; right: 10px; bottom: calc(10px + env(safe-area-inset-bottom)); z-index: 40;
    height: var(--nav-h); border-radius: 20px;
    background: rgba(8, 22, 34, 0.86); border: 1px solid var(--line-hi);
    backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%);
    box-shadow: 0 18px 50px -12px rgba(0, 0, 0, 0.85);
  }
  .bottom-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; color: var(--muted); text-decoration: none; font-size: 11px; position: relative; }
  .bottom-nav a svg { width: 22px; height: 22px; }
  .bottom-nav a.active { color: var(--aqua); }
  .bottom-nav a.active::after { content: ""; position: absolute; top: 6px; width: 22px; height: 2px; border-radius: 2px; background: var(--aqua); box-shadow: 0 0 10px var(--aqua); }
  .bottom-nav .badge { position: absolute; top: 8px; right: calc(50% - 22px); height: 16px; min-width: 16px; font-size: 10px; padding: 0 4px; }
  .hide-mobile { display: none !important; }
}
@media (min-width: 861px) { .show-mobile { display: none !important; } }
@media (max-width: 380px) {
  .metric .value { font-size: 34px; }
  .qa { gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* split layouts + overview ordering */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
.col-side { align-content: start; }
@media (max-width: 1080px) {
  .split { grid-template-columns: 1fr; }
  .overview-lower { display: flex; flex-direction: column; gap: 14px; }
  .overview-lower .col-main, .overview-lower .col-side { display: contents; }
  .o-qa { order: 1; } .o-chart { order: 2; } .o-alerts { order: 3; } .o-feed { order: 4; } .o-equip { order: 5; }
}
.qa-btn small { white-space: nowrap; }
@media (min-width: 1081px) { .col-side .qa { grid-template-columns: repeat(2, 1fr); } .col-side .qa-btn { height: 84px; } }
#view:focus { outline: none; }
.scroll-x .tbl td { white-space: nowrap; }
.scroll-x .tbl td.wrap { white-space: normal; min-width: 220px; }
@media (max-width: 860px) {
  .panel-head { flex-wrap: wrap; }
  .panel-head .hint { display: none; }
  .list-item { flex-wrap: wrap; }
  .list-item .grow { min-width: 130px; }
}
.switch { display: inline-block; vertical-align: middle; }
.channel .row svg { width: 24px; height: 24px; color: var(--muted); flex: none; }

/* ---------- v2.0.1: life support, water quality, crop cycle ---------- */
input[type=password], input[type=datetime-local] {
  width: 100%; height: 40px; padding: 0 12px; border-radius: 9px;
  background: rgba(3, 9, 14, 0.7); border: 1px solid var(--line-hi); color: var(--text); font-size: 14.5px;
}
.ls-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.ls-tile { padding: 14px; border-radius: 14px; background: rgba(3, 9, 14, 0.45); border: 1px solid var(--line); border-left: 3px solid var(--off); min-width: 0; }
.ls-tile.ok { border-left-color: var(--ok); }
.ls-tile.warn { border-left-color: var(--warn); }
.ls-tile.crit { border-left-color: var(--crit); background: rgba(255, 94, 110, 0.09); border-color: rgba(255, 94, 110, 0.45); }
.ls-top { display: flex; align-items: center; gap: 8px; color: var(--text-2); font-size: 13px; }
.ls-top svg { width: 18px; height: 18px; color: var(--aqua); flex: none; }
.ls-val { font-size: 22px; font-weight: 500; margin-top: 6px; }
.ls-val.off { color: var(--muted); font-size: 15px; font-weight: 400; }
.ls-tile.crit .ls-val { color: var(--crit); }
.ls-tile.warn .ls-val { color: var(--warn); }
.ls-sub { color: var(--muted); font-size: 12.5px; }
.wq-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
.wq-card { padding: 14px 16px; }
.wq-val { font-size: 28px; font-weight: 400; margin: 4px 0; }
.wq-val .unit { font-size: 13px; color: var(--muted); }
.wq-warn { border-color: rgba(244, 195, 79, 0.45); }
.wq-crit { border-color: rgba(255, 94, 110, 0.55); background: rgba(255, 94, 110, 0.06); }
.stat-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.stat { padding: 12px 14px; border-radius: 12px; background: rgba(3, 9, 14, 0.45); border: 1px solid var(--line); min-width: 0; }
.stat-v { font-size: 24px; font-weight: 500; margin: 2px 0; }
.panel.attention { border-color: rgba(255, 94, 110, 0.4); }
ul.reasons { margin: 8px 0 0; padding-left: 18px; display: grid; gap: 6px; }
@media (max-width: 1280px) { .wq-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } .stat-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 860px) {
  .ls-grid, .wq-grid, .stat-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .ls-val { font-size: 18px; }
  .stat-v, .wq-val { font-size: 21px; }
}

/* ---------- v2.0.2: sign-in (cloud mode) ---------- */
body.locked .sidebar, body.locked .bottom-nav, body.locked .conn-banner, body.locked .topbar { display: none !important; }
body.locked .shell { grid-template-columns: 1fr; }
body.locked .main { min-height: 100dvh; justify-content: center; }
.login-card { width: min(400px, 100%); margin: 0 auto; padding: 28px; box-shadow: var(--glow); }
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.login-brand svg { width: 44px; height: 44px; }
.login-brand b { display: block; font-size: 17px; letter-spacing: 0.16em; }
.login-brand span { display: block; font-size: 21px; letter-spacing: 0.32em; color: var(--aqua); font-weight: 300; }
.code-box { white-space: pre-wrap; word-break: break-all; font-family: ui-monospace, Consolas, monospace; font-size: 13px; background: rgba(3, 9, 14, 0.7); border: 1px solid var(--line-hi); border-radius: 10px; padding: 12px; color: var(--aqua); user-select: all; }

/* ---------- Overview: everything on one screen (desktop) ---------- */
.ov { display: flex; flex-direction: column; gap: 16px; }
.ov-head { display: flex; flex-direction: column; gap: 12px; }
.ov-body { display: grid; grid-template-columns: minmax(0, 2fr) minmax(300px, 1fr); gap: 16px; }
.ov-side { display: grid; gap: 16px; align-content: start; grid-template-columns: minmax(0, 1fr); }
@media (max-width: 1099px) {
  .ov-body { display: flex; flex-direction: column; gap: 14px; }
  .ov-main, .ov-side { display: contents; }
  .o-ls { order: 1; } .o-qa { order: 2; } .o-chart { order: 3; } .o-alerts { order: 4; } .o-feed { order: 5; } .o-equip { order: 6; }
}
@media (min-width: 1100px) and (min-height: 620px) {
  body.fit-ov .main { height: 100vh; height: 100dvh; overflow: hidden; padding: 14px 20px; gap: 10px; }
  body.fit-ov .topbar h1, body.fit-ov .topbar .sub { display: none; }
  body.fit-ov #view { display: block; flex: 1; min-height: 0; }
  body.fit-ov .ov { height: 100%; display: grid; grid-template-rows: auto auto minmax(0, 1fr); gap: 12px; }
  body.fit-ov .ov-head { gap: 8px; }
  body.fit-ov .hero .pond-title { font-size: 26px; }
  body.fit-ov .waiting { padding: 8px 14px; }
  body.fit-ov .waiting .radar { width: 24px; height: 24px; }
  body.fit-ov .panel { padding: 12px 16px; border-radius: 14px; }
  body.fit-ov .panel-head { margin-bottom: 8px; }
  body.fit-ov .metrics { gap: 12px; grid-template-columns: 1.25fr 1.25fr 1fr 1fr; }
  body.fit-ov .metric { min-height: 0; gap: 6px; }
  body.fit-ov .metric .value { font-size: clamp(34px, 5.4vh, 58px); }
  body.fit-ov .metric .small-value { font-size: 20px; }
  body.fit-ov .metric .kv { font-size: 12.5px; gap: 2px 12px; }
  body.fit-ov .ov-body { min-height: 0; gap: 12px; grid-template-columns: minmax(0, 1.6fr) minmax(380px, 1fr); }
  body.fit-ov .ov-main { min-height: 0; display: flex; }
  body.fit-ov .o-chart { flex: 1; min-height: 0; display: flex; flex-direction: column; }
  body.fit-ov .o-chart .panel-head { flex: none; }
  body.fit-ov .o-chart .chart-label { flex: none; margin: 2px 0; }
  body.fit-ov .o-chart .chart { flex: 1 1 0; min-height: 0; overflow: hidden; }
  body.fit-ov .o-chart .chart-empty { height: 100% !important; }
  body.fit-ov .ov-side { min-height: 0; grid-template-columns: 1fr 1fr; grid-template-rows: auto auto minmax(0, 1fr); gap: 12px; align-content: stretch; }
  body.fit-ov .o-ls, body.fit-ov .o-qa { grid-column: 1 / -1; }
  body.fit-ov .o-equip, body.fit-ov .ls-note { display: none; }
  body.fit-ov .o-alerts, body.fit-ov .o-feed { min-height: 0; overflow: auto; }
  body.fit-ov .ls-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  body.fit-ov .ls-tile { padding: 8px 12px; }
  body.fit-ov .ls-val { font-size: 17px; margin-top: 2px; }
  body.fit-ov .ls-sub { font-size: 11.5px; }
  body.fit-ov .qa { grid-template-columns: repeat(4, 1fr); gap: 8px; }
  body.fit-ov .qa-btn { height: 62px; gap: 4px; font-size: 12.5px; }
  body.fit-ov .qa-btn svg { width: 20px; height: 20px; }
  body.fit-ov .list-item { padding: 7px 2px; }
  body.fit-ov .empty { padding: 10px 4px; }
}
/* shorter laptop screens: tighter still, nothing important removed */
@media (min-width: 1100px) and (min-height: 620px) and (max-height: 820px) {
  body.fit-ov .ls-sub, body.fit-ov .qa-btn small { display: none; }
  body.fit-ov .qa-btn { height: 48px; }
  body.fit-ov .ls-tile { padding: 6px 10px; }
  body.fit-ov .metric .value { font-size: 34px; }
  body.fit-ov .metric .label { font-size: 13px; }
  body.fit-ov .metric .kv dt:nth-of-type(n+3), body.fit-ov .metric .kv dd:nth-of-type(n+3) { display: none; }
  body.fit-ov .hero .pond-title { font-size: 22px; }
  body.fit-ov .main { padding: 10px 16px; }
}
/* medium-width screens: Life support (four tiles in a row) and Feeding share the top row;
   below them the chart sits on the left, Quick actions and Alerts on the right.
   Every panel has its own grid cell and Alerts keeps a minimum height, so panels can never
   be drawn on top of each other (if a screen is too short, the page scrolls instead). */
@media (min-width: 1100px) and (max-width: 1699px) and (min-height: 620px) {
  body.fit-ov .ov-body { grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr); grid-template-rows: auto auto minmax(96px, 1fr); }
  body.fit-ov .ov-main, body.fit-ov .ov-side { display: contents; }
  body.fit-ov .o-ls { grid-column: 1; grid-row: 1; }
  body.fit-ov .o-ls .ls-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  body.fit-ov .o-feed { grid-column: 2; grid-row: 1; overflow: visible; min-height: auto; }
  body.fit-ov .o-feed .list { flex-direction: row; gap: 14px; }
  body.fit-ov .o-feed .list-item { flex: 1; border-bottom: 0; padding: 0; align-items: flex-start; }
  body.fit-ov .o-chart { grid-column: 1; grid-row: 2 / 4; min-height: 0; }
  body.fit-ov .o-qa { grid-column: 2; grid-row: 2; }
  body.fit-ov .o-alerts { grid-column: 2; grid-row: 3; min-height: 0; overflow: auto; }
  body.fit-ov .o-ls .panel-head { margin-bottom: 6px; }
}
/* status chip inside a metric title wraps instead of spilling out of the card */
.metric .label { flex-wrap: wrap; row-gap: 4px; }
.metric .label .chip { font-size: 11px; padding: 2px 8px; }
/* short + medium screens: compact panels so the charts stay readable */
@media (min-width: 1100px) and (max-width: 1699px) and (min-height: 620px) and (max-height: 820px) {
  body.fit-ov .o-ls .panel-head .hint { display: none; }
  body.fit-ov .ls-tile { padding: 5px 10px; }
  body.fit-ov .ls-val { font-size: 15px; margin-top: 0; }
  body.fit-ov .o-feed .panel-head, body.fit-ov .o-alerts .panel-head, body.fit-ov .o-qa .panel-head { margin-bottom: 4px; }
  body.fit-ov .o-qa .qa-btn { height: 44px; }
}
/* safety net: a screen too short for everything scrolls instead of hiding or overlapping content */
@media (min-width: 1100px) and (min-height: 620px) {
  body.fit-ov .main { overflow-y: auto; }
}