/* Telemetrie.online — „TB-bold" design vrstva nad Pico.css
   Dvě témata řízená html[data-theme]:
   - dark  = ThingsBoard dark dashboard (plocha #0A1F36, widgety #0D2743,
             bílá alfa hierarchie .87/.57/.38) — vložené TB widgety zapadnou
   - light = stejná struktura na světlých plochách, inkoust z navy alfa
   Komponenty sahají VÝHRADNĚ na tokeny; barvy grafů řeší device_detail.js
   (validovaná dataviz paleta, světlé/tmavé kroky). */

:root, html[data-theme="dark"] {
  color-scheme: dark;
  --tl-bg: #0a1f36;
  --tl-surface: #0d2743;
  --tl-surface-2: #10304f;
  --tl-border: rgba(255, 255, 255, .09);
  --tl-ink: rgba(255, 255, 255, .87);
  --tl-ink-2: rgba(255, 255, 255, .57);
  --tl-ink-3: rgba(255, 255, 255, .38);
  --tl-strong: #ffffff;
  --tl-overlay-0: rgba(255, 255, 255, .03);
  --tl-overlay-1: rgba(255, 255, 255, .06);
  --tl-overlay-2: rgba(255, 255, 255, .09);
  --tl-nav-bg: rgba(10, 31, 54, .82);
  --tl-brand: #3987e5;
  --tl-brand-ink: #6da7ec;
  --tl-brand-soft: rgba(57, 135, 229, .16);
  --tl-cyan: #19c3d8;
  --tl-glow-1: rgba(57, 135, 229, .14);
  --tl-glow-2: rgba(25, 195, 216, .08);
  --tl-good: #4ac26b; --tl-good-bg: rgba(74, 194, 107, .14);
  --tl-warn: #e3b341; --tl-warn-bg: rgba(227, 179, 65, .14);
  --tl-bad:  #f0635c; --tl-bad-bg: rgba(240, 99, 92, .14);
  --tl-radius: 14px;
  --tl-shadow: 0 2px 6px rgb(0 0 0 / .35);
  --tl-glow: 0 0 0 1px rgba(57, 135, 229, .35), 0 8px 30px rgb(0 0 0 / .45);
  --tl-selection: rgba(57, 135, 229, .4);
}

html[data-theme="light"] {
  color-scheme: light;
  --tl-bg: #eef2f7;
  --tl-surface: #ffffff;
  --tl-surface-2: #f4f7fb;
  --tl-border: rgba(10, 31, 54, .12);
  --tl-ink: rgba(10, 31, 54, .89);
  --tl-ink-2: rgba(10, 31, 54, .60);
  --tl-ink-3: rgba(10, 31, 54, .40);
  --tl-strong: #0b1c30;
  --tl-overlay-0: rgba(10, 31, 54, .03);
  --tl-overlay-1: rgba(10, 31, 54, .06);
  --tl-overlay-2: rgba(10, 31, 54, .09);
  --tl-nav-bg: rgba(255, 255, 255, .85);
  --tl-brand: #2a78d6;
  --tl-brand-ink: #1c5cab;
  --tl-brand-soft: rgba(42, 120, 214, .12);
  --tl-cyan: #0a97ab;
  --tl-glow-1: rgba(42, 120, 214, .10);
  --tl-glow-2: rgba(10, 151, 171, .07);
  --tl-good: #1a7f37; --tl-good-bg: rgba(26, 127, 55, .12);
  --tl-warn: #9a6700; --tl-warn-bg: rgba(154, 103, 0, .13);
  --tl-bad:  #c93c37; --tl-bad-bg: rgba(201, 60, 55, .11);
  --tl-shadow: 0 1px 2px rgb(15 34 58 / .06), 0 4px 16px rgb(15 34 58 / .07);
  --tl-glow: 0 0 0 1px rgba(42, 120, 214, .30), 0 10px 30px rgb(15 34 58 / .16);
  --tl-selection: rgba(42, 120, 214, .25);
}

/* ---------- typografie: Space Grotesk (nadpisy/značka), systémový sans (tělo),
   mono (data — čísla, štítky, MQTT identifikátory). Sdíleno s telemetrie.online
   a eshopem — jednotná identita napříč weby. Self-hosted, SIL OFL 1.1. ---------- */
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("vendor/fonts/space-grotesk-500.ab4861869c91.woff2") format("woff2");
}
@font-face {
  font-family: "Space Grotesk";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("vendor/fonts/space-grotesk-700.f9e147a59a93.woff2") format("woff2");
}
:root {
  --tl-font-display: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --tl-font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

/* ---------- základ ---------- */
html { background: var(--tl-bg); }
body {
  background:
    radial-gradient(1100px 500px at 85% -10%, var(--tl-glow-1), transparent 60%),
    radial-gradient(900px 420px at -10% 110%, var(--tl-glow-2), transparent 55%),
    var(--tl-bg);
  color: var(--tl-ink);
  min-height: 100vh;
}
main.container { max-width: 1100px; padding-top: .5rem; }
h3 { font-family: var(--tl-font-display); font-weight: 700; letter-spacing: -.015em; color: var(--tl-ink); }
h4 { font-family: var(--tl-font-mono); font-weight: 600; font-size: .74rem; text-transform: uppercase;
     letter-spacing: .08em; color: var(--tl-ink-2); margin: 1.6rem 0 .6rem; }
hgroup > p, .muted, small.muted { color: var(--tl-ink-2); }
a { color: var(--tl-brand); }
::selection { background: var(--tl-selection); }

:where(button, [type="submit"]):not(.outline):not(.secondary) {
  background: linear-gradient(180deg, #4392ee, #2a78d6);
  border: none; border-radius: 10px; font-weight: 650; color: #fff;
  box-shadow: 0 2px 10px rgba(42, 120, 214, .4);
}
:where(button, [type="submit"]):not(.outline):not(.secondary):hover { filter: brightness(1.08); }
:where(input, select, textarea) {
  border-radius: 10px !important;
  background: var(--tl-overlay-1) !important;
  border-color: var(--tl-border) !important;
  color: var(--tl-ink) !important;
}
:where(input):focus { border-color: var(--tl-brand) !important;
  box-shadow: 0 0 0 3px var(--tl-brand-soft) !important; }
button.outline, button.secondary { border-color: var(--tl-border); color: var(--tl-ink-2); }

/* ---------- horní lišta ---------- */
nav.top {
  position: sticky; top: 0; z-index: 50;
  background: var(--tl-nav-bg);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--tl-border);
  margin-bottom: 1.4rem; padding: 0 .6rem;
}
nav.top .brand { font-family: var(--tl-font-display); font-weight: 700; letter-spacing: -.02em;
  color: var(--tl-ink); font-size: 1.05rem; }
nav.top .brand .dot { color: var(--tl-cyan); }
nav.top ul { margin: 0; }
nav.top li { padding: .5rem .2rem; }
nav.top a.navlink, nav.top button.theme-toggle {
  color: var(--tl-ink-2); text-decoration: none; font-weight: 550;
  padding: .38rem .7rem; border-radius: 9px; font-size: .92rem; white-space: nowrap;
  position: relative;
}
nav.top a.navlink:hover { color: var(--tl-ink); background: var(--tl-overlay-1); }
nav.top a.navlink.active { color: var(--tl-strong); background: var(--tl-brand-soft); }
nav.top a.navlink.active::after {
  content: ""; position: absolute; left: .7rem; right: .7rem; bottom: -1px;
  height: 2px; border-radius: 2px; background: var(--tl-cyan);
}
nav.top a.navlink.cta {
  color: #fff; background: linear-gradient(180deg, #4392ee, #2a78d6);
  font-weight: 650; box-shadow: 0 2px 10px rgba(42, 120, 214, .35);
}
nav.top a.navlink.cta:hover { filter: brightness(1.1); }
nav.top summary.navlink { list-style: none; }
nav.top button { margin: 0; }
nav.top button.theme-toggle {
  background: transparent; border: 1px solid var(--tl-border); box-shadow: none;
  width: auto; line-height: 1; cursor: pointer; font-size: 1rem; padding: .34rem .55rem;
}
nav.top button.theme-toggle:hover { background: var(--tl-overlay-1); filter: none; }
@media (max-width: 720px) {
  nav.top { padding: 0 .25rem; }
  nav.top ul:last-child { overflow-x: auto; scrollbar-width: none; }
  nav.top ul:last-child::-webkit-scrollbar { display: none; }
}

/* ---------- widget karty (TB vzor) ---------- */
article, .card {
  background: var(--tl-surface); border: 1px solid var(--tl-border);
  border-radius: var(--tl-radius); box-shadow: var(--tl-shadow); color: var(--tl-ink);
}
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(310px, 100%), 1fr)); gap: 1rem; }
article.device-card { margin: 0; padding: 1.05rem 1.15rem;
  transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease; }
article.device-card:hover { box-shadow: var(--tl-glow); transform: translateY(-2px);
  border-color: var(--tl-brand); }
article.device-card header {
  display: flex; justify-content: space-between; align-items: center; gap: .5rem;
  background: none; border: none; padding: 0; margin: 0 0 .1rem;
}
article.device-card header a { color: var(--tl-ink); text-decoration: none;
  font-family: var(--tl-font-display); font-weight: 700; font-size: 1.05rem; }
article.device-card header a:hover { color: var(--tl-cyan); }
.device-meta { color: var(--tl-ink-3); font-size: .78rem; margin: 0 0 .8rem; }

/* poslední hodnoty: TB „value card" mřížka */
.field-values { display: grid; grid-template-columns: repeat(auto-fit, minmax(86px, 1fr));
  gap: .5rem; margin: 0; }
.chip {
  display: flex; flex-direction: column; align-items: flex-start; gap: 0;
  background: var(--tl-overlay-0); border: 1px solid var(--tl-border);
  border-radius: 10px; padding: .5rem .65rem .45rem;
}
.chip b { font-size: 1.35rem; line-height: 1.15; font-variant-numeric: tabular-nums;
  color: var(--tl-strong); font-weight: 700; }
.chip span { font-family: var(--tl-font-mono); font-size: .66rem; color: var(--tl-ink-3);
  text-transform: uppercase; letter-spacing: .05em; }

/* ---------- složky zařízení ---------- */
.folder-breadcrumb { display: flex; flex-wrap: wrap; gap: .35rem; align-items: center;
  font-size: .85rem; margin: 0 0 .9rem; }
.folder-breadcrumb a { color: var(--tl-ink-3); text-decoration: none; }
.folder-breadcrumb a:hover { color: var(--tl-cyan); }
.folder-breadcrumb .sep { color: var(--tl-ink-3); }
.folder-breadcrumb b { color: var(--tl-strong); }
.card-grid.folders { margin-bottom: 1rem; }
article.folder-card { background: var(--tl-overlay-0); }
.folder-menu { position: relative; margin: 0; }
.folder-menu summary { list-style: none; cursor: pointer; padding: 0 .4rem;
  color: var(--tl-ink-3); font-weight: 700; }
.folder-menu summary::-webkit-details-marker { display: none; }
.folder-menu-body { position: absolute; right: 0; z-index: 30; min-width: 15rem;
  background: var(--tl-surface); border: 1px solid var(--tl-border);
  border-radius: var(--tl-radius); box-shadow: var(--tl-shadow); padding: .7rem;
  display: flex; flex-direction: column; gap: .5rem; }
.folder-menu-body form { display: flex; gap: .4rem; margin: 0; }
.folder-menu-body input[type=text] { margin: 0; padding: .3rem .5rem; height: auto; }
.folder-menu-body button { margin: 0; padding: .3rem .7rem; width: auto; font-size: .8rem; }
.folder-menu-body button.danger { color: var(--tl-red, #e5484d); border-color: currentColor; }
.folder-new { margin: 0 0 1rem; }
.folder-new summary { font-size: .85rem; color: var(--tl-ink-3); cursor: pointer; }
.folder-new form { margin-top: .5rem; }
.folder-new input { margin: 0; }

/* ---------- stavové odznaky ---------- */
.badge {
  display: inline-flex; align-items: center; gap: .38rem;
  padding: .16rem .65rem; border-radius: 999px;
  font-family: var(--tl-font-mono); font-size: .71rem; font-weight: 600; letter-spacing: .01em;
}
.badge::before { content: ""; width: .5em; height: .5em; border-radius: 50%; background: currentColor; }
.badge.online  { background: var(--tl-good-bg); color: var(--tl-good); }
.badge.online::before { animation: tl-pulse 2.2s ease-out infinite; }
.badge.offline { background: var(--tl-bad-bg); color: var(--tl-bad); }
.badge.warning { background: var(--tl-warn-bg); color: var(--tl-warn); }
@keyframes tl-pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, currentColor 55%, transparent); }
                      70% { box-shadow: 0 0 0 .5em transparent; } 100% { box-shadow: 0 0 0 0 transparent; } }
@media (prefers-reduced-motion: reduce) { .badge.online::before { animation: none; } }

/* ---------- segmentový přepínač ---------- */
.segmented {
  display: inline-flex; gap: 3px; padding: 3px;
  background: var(--tl-overlay-1); border: 1px solid var(--tl-border);
  border-radius: 11px; overflow-x: auto; max-width: 100%;
}
.segmented button {
  margin: 0; padding: .34rem .85rem; border: none; border-radius: 8px;
  background: transparent; color: var(--tl-ink-2); font-size: .85rem; font-weight: 600;
  box-shadow: none; white-space: nowrap; width: auto;
}
.segmented button:hover { color: var(--tl-ink); background: var(--tl-overlay-1); }
.segmented button.active { background: var(--tl-brand); color: #fff;
  box-shadow: 0 2px 8px rgba(42, 120, 214, .45); }

/* ---------- grafy = TB widgety ---------- */
.chart-box {
  background: var(--tl-surface); border: 1px solid var(--tl-border);
  border-radius: var(--tl-radius); box-shadow: var(--tl-shadow);
  padding: 0 0 .4rem; margin-bottom: 1rem; overflow: hidden;
}
.chart-box .chart-head {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: .7rem 1rem .55rem; margin-bottom: .2rem;
  border-bottom: 1px solid var(--tl-border);
  background: var(--tl-overlay-0);
}
.chart-box .chart-title { font-family: var(--tl-font-mono); font-weight: 600; font-size: .74rem;
  color: var(--tl-ink-2); text-transform: uppercase; letter-spacing: .06em; }
.chart-box .chart-last { font-variant-numeric: tabular-nums; font-weight: 750;
  font-size: 1.3rem; color: var(--tl-strong); }
.chart-box .chart-last small { color: var(--tl-ink-3); font-weight: 500; font-size: .72rem; }
.chart-box canvas { padding: 0 .6rem; }

/* KPI dlaždice (TB value cards) */
.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: .8rem; margin-bottom: 1.1rem; }
.kpi {
  background: var(--tl-surface); border: 1px solid var(--tl-border);
  border-radius: var(--tl-radius); box-shadow: var(--tl-shadow);
  padding: .8rem 1rem .7rem; position: relative; overflow: hidden;
}
.kpi::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 3px;
  background: var(--kpi-color, var(--tl-brand)); }
.kpi b { display: block; font-size: 1.65rem; line-height: 1.15; font-weight: 750;
  color: var(--tl-strong); font-variant-numeric: tabular-nums; }
.kpi small { font-family: var(--tl-font-mono); color: var(--tl-ink-3); font-size: .66rem;
  text-transform: uppercase; letter-spacing: .06em; }

/* ---------- tabulky ---------- */
.table-wrap { overflow-x: auto; background: var(--tl-surface); border: 1px solid var(--tl-border);
  border-radius: var(--tl-radius); box-shadow: var(--tl-shadow); }
.table-wrap table { margin: 0; --pico-background-color: transparent; }
table th { color: var(--tl-ink-3); font-size: .7rem; text-transform: uppercase;
  letter-spacing: .07em; font-weight: 650; background: var(--tl-overlay-0); }
table td { font-size: .9rem; color: var(--tl-ink); border-color: var(--tl-border); }
table tbody tr:hover { background: var(--tl-brand-soft); }

/* ---------- prázdné stavy, formuláře, zprávy ---------- */
.empty { text-align: center; padding: 3rem 1rem; color: var(--tl-ink-2); }
.empty .glyph { font-size: 2.2rem; display: block; margin-bottom: .5rem;
  filter: drop-shadow(0 0 14px color-mix(in srgb, var(--tl-cyan) 45%, transparent)); }
.auth-card { max-width: 400px; margin: 9vh auto 0; padding: 1.8rem 1.6rem; box-shadow: var(--tl-glow); }
article.flash { padding: .65rem 1rem; margin-bottom: 1rem; }
article.flash.error { border-left: 3px solid var(--tl-bad); }
article.flash.success { border-left: 3px solid var(--tl-good); }
details.dropdown ul { background: var(--tl-surface-2); border: 1px solid var(--tl-border); }

@media (max-width: 720px) {
  main.container { padding-left: .8rem; padding-right: .8rem; }
  .auth-card { margin-top: 5vh; }
  .kpi b { font-size: 1.4rem; }
}

/* ---------- dashboard editace ---------- */
.tabs-bar { display: flex; justify-content: space-between; align-items: center;
  gap: .6rem; margin-bottom: .9rem; flex-wrap: wrap; }
.segmented.tabs a { margin: 0; padding: .34rem .85rem; border: none; border-radius: 8px;
  background: transparent; color: var(--tl-ink-2); font-size: .85rem; font-weight: 600;
  text-decoration: none; white-space: nowrap; }
.segmented.tabs a:hover { color: var(--tl-ink); background: var(--tl-overlay-1); }
.segmented.tabs a.active { background: var(--tl-brand); color: #fff;
  box-shadow: 0 2px 8px rgba(42, 120, 214, .45); }
.tab-add { margin: 0; }
.tab-add input { width: 7.5rem; margin: 0 !important; padding: .3rem .6rem !important;
  font-size: .82rem !important; height: auto !important; }
a.edit-toggle { padding: .34rem .8rem; font-size: .85rem; border-color: var(--tl-border);
  color: var(--tl-ink-2); margin: 0; width: auto; }
a.edit-toggle.on { border-color: var(--tl-cyan); color: var(--tl-cyan); }

.edit-panel { padding: .8rem 1rem; margin-bottom: 1rem;
  border-style: dashed; border-color: var(--tl-brand); }
.edit-panel form { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; margin: 0; }
.edit-panel form + form { margin-top: .6rem; padding-top: .6rem;
  border-top: 1px dashed var(--tl-border); }
.edit-panel select, .edit-panel input { margin: 0 !important; width: auto !important;
  min-width: 9rem; padding: .35rem .6rem !important; font-size: .85rem !important; height: auto !important; }
.edit-panel button { margin: 0; width: auto; padding: .35rem .8rem; font-size: .85rem; }
.edit-panel button.danger { border-color: var(--tl-bad); color: var(--tl-bad); }

.widget-tools { display: inline-flex; gap: .25rem; margin-left: .5rem; vertical-align: middle; }
.widget-tools button { margin: 0; width: auto; padding: .05rem .45rem; font-size: .8rem;
  background: var(--tl-overlay-1); border: 1px solid var(--tl-border); color: var(--tl-ink-2);
  border-radius: 6px; box-shadow: none; line-height: 1.4; }
.widget-tools button:hover { color: var(--tl-ink); border-color: var(--tl-brand); filter: none; }
.kpi .kpi-tools { position: absolute; top: .4rem; right: .5rem; margin: 0; }

/* ---------- widget grid v2 (šířky, drag&drop, gauge, status) ---------- */
.widget-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 1rem;
  margin-bottom: 1rem; }
.widget {
  background: var(--tl-surface); border: 1px solid var(--tl-border);
  border-radius: var(--tl-radius); box-shadow: var(--tl-shadow);
  padding: 0 0 .4rem; overflow: hidden; min-width: 0;
}
.widget.w-12 { grid-column: span 12; }
.widget.w-6  { grid-column: span 6; }
.widget.w-4  { grid-column: span 4; }
@media (max-width: 900px) {
  .widget.w-4 { grid-column: span 6; }
}
@media (max-width: 640px) {
  .widget.w-6, .widget.w-4 { grid-column: span 12; }
}
.widget canvas { padding: 0 .6rem; max-width: 100%; }
.widget .chart-head { margin-bottom: .2rem; }

.widget-grid.editing .widget { cursor: grab; }
.widget-grid.editing .widget:active { cursor: grabbing; }
.widget.dragging { opacity: .45; border-style: dashed; border-color: var(--tl-cyan); }

.widget-tools button.on { background: var(--tl-brand); color: #fff; border-color: var(--tl-brand); }

.kpi-body { padding: .9rem 1rem .6rem; border-left: 3px solid var(--kpi-color, var(--tl-brand)); }
.kpi-body b { display: block; font-size: 1.9rem; line-height: 1.1; font-weight: 750;
  color: var(--tl-strong); font-variant-numeric: tabular-nums; }
.kpi-body small { font-family: var(--tl-font-mono); color: var(--tl-ink-3); font-size: .68rem;
  text-transform: uppercase; letter-spacing: .06em; }

.gauge-body { position: relative; padding: .5rem .9rem 0; }
.gauge-value { position: absolute; left: 0; right: 0; bottom: .4rem; text-align: center; }
.gauge-value b { font-size: 1.45rem; font-weight: 750; color: var(--tl-strong);
  font-variant-numeric: tabular-nums; }
.gauge-value small { font-family: var(--tl-font-mono); color: var(--tl-ink-3); font-size: .7rem;
  margin-left: .25rem; }

.status-body { display: flex; align-items: center; gap: .7rem; padding: 1rem; }
.status-body .badge { font-size: .85rem; padding: .3rem .9rem; }

/* export grafu */
.head-right { display: inline-flex; align-items: center; gap: .5rem; }
.dl-btn {
  margin: 0; width: auto; padding: .1rem .5rem; font-size: .95rem; line-height: 1.4;
  background: transparent; border: 1px solid var(--tl-border); border-radius: 7px;
  color: var(--tl-ink-3); box-shadow: none; cursor: pointer;
}
.dl-btn:hover { color: var(--tl-brand); border-color: var(--tl-brand); filter: none; }