/* senzorvzduchu.cz — mapa 2.8 (multipollutant). Sdílené styly pro index.html i embed.html. */

:root {
    /* Brand */
    --brand-primary: #21275F;
    --brand-secondary: #3845A6;

    /* UI */
    --bg-light: #ffffff;
    --text-dark: #111827;
    --text-muted: #6b7280;
    --text-faint: #999999;
    --surface: #ffffff;
    --surface-2: #f3f4f6;
    --surface-3: #f9fafb;
    --surface-brand: #EEF0FA;
    --surface-translucent: rgba(255, 255, 255, 0.92);
    --border-c: #e5e7eb;
    --border-soft: #eeeeee;

    /* AQI */
    --aqi-good: #87C159;
    --aqi-moderate: #F4D35E;
    --aqi-sensitive: #F48C42;
    --aqi-unhealthy: #E64A45;
    --aqi-very-unhealthy: #8C6AB6;
    --aqi-hazardous: #7D5963;
    --aqi-no-data: #9ca3af;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    overflow: hidden;
    position: relative;
}

#map {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 1;
    touch-action: manipulation;
}

/* ---------- Lišta látek ---------- */
.pollutant-bar {
    position: fixed;
    top: calc(10px + env(safe-area-inset-top)); left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    display: flex; align-items: center; gap: 4px;
    background: var(--surface);
    padding: 5px;
    border-radius: 22px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    max-width: calc(100vw - 20px);
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}
.pollutant-bar::-webkit-scrollbar { display: none; }
.pollutant-chip {
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: 'Familjen Grotesk', sans-serif;
    font-size: 13px; font-weight: 600;
    padding: 7px 13px;
    border-radius: 17px;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s;
}
.pollutant-chip:hover { background: var(--surface-2); }
.pollutant-chip.active { background: var(--brand-primary); color: white; }
.pollutant-chip.pollutant-info {
    color: var(--brand-primary);
    font-size: 14px;
    padding: 7px 11px;
    border-left: 1px solid var(--border-soft);
    border-radius: 0 17px 17px 0;
}

/* ---------- Legenda ---------- */
.legend {
    position: fixed;
    top: 10px; right: 10px;
    background: var(--surface);
    padding: 10px 12px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    min-width: 150px;
    border-left: 3px solid var(--brand-primary);
}
.legend-header {
    display: flex; justify-content: space-between; align-items: center;
    cursor: pointer;
    margin-bottom: 6px;
}
.legend-title {
    font-family: 'Familjen Grotesk', sans-serif;
    font-size: 13px; font-weight: 600;
    color: var(--brand-primary);
}
.legend-content { transition: max-height 0.3s ease; overflow: hidden; max-height: 600px; }
.legend-content.collapsed { max-height: 0; }
.legend-item { display: flex; align-items: center; margin: 4px 0; font-size: 10px; }
.legend-color { width: 12px; height: 12px; border-radius: 3px; margin-right: 8px; }

.legend-sources { margin-top: 6px; padding-top: 6px; border-top: 1px solid var(--border-soft); }
.legend-source-item {
    display: flex; align-items: center;
    margin: 3px 0; font-size: 9px;
    color: var(--text-muted);
    cursor: pointer; user-select: none;
    transition: opacity 0.2s;
}
.legend-source-item.disabled { opacity: 0.35; text-decoration: line-through; }
.legend-source-item.unavailable { opacity: 0.3; pointer-events: none; }
.src-dot {
    width: 10px; height: 10px; border-radius: 50%;
    margin-right: 6px; flex-shrink: 0;
    background: #9ca3af;
}
.src-sc   { border: 1px solid #888; }
.src-chmi { border: 2px solid #000; }
.src-sck  { border: 1px dashed #555; }
.src-pa   { border: 2px solid #7B2D8E; }
.src-lib  { border: 2px solid #0E7C86; }
.src-wind { background: linear-gradient(135deg, #93C5FD, #3B82F6); border: 1px solid #60A5FA; }
.src-interp { background: linear-gradient(135deg, #87C159, #F4D35E, #E64A45); border: 1px solid #ccc; opacity: 0.7; }
.legend-zoom {
    margin-left: auto;
    padding-left: 6px;
    color: var(--brand-secondary);
    font-weight: 700;
    cursor: pointer;
}

/* Libčich cluster bublina (Leaflet.markercluster, jen libcich vrstva) */
.libcich-cluster { background: transparent; border: none; }
.libcich-cluster div {
    width: 34px; height: 34px;
    border-radius: 50%;
    border: 2px solid #0E7C86;
    display: flex; align-items: center; justify-content: center;
    font: 600 12px 'Familjen Grotesk', sans-serif;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,0.45);
    box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}

.legend-basemap {
    display: flex; align-items: center; gap: 4px;
    margin-top: 8px; padding-top: 6px; border-top: 1px solid var(--border-soft);
    font-size: 9px; color: var(--text-muted);
}
.basemap-btn {
    border: 1px solid var(--border-c);
    background: var(--surface);
    color: var(--text-muted);
    font-family: 'Inter', sans-serif;
    font-size: 9px; font-weight: 600;
    padding: 3px 7px;
    border-radius: 10px;
    cursor: pointer;
}
.basemap-btn.active {
    background: var(--brand-primary);
    border-color: var(--brand-primary);
    color: white;
}

.legend-info-link {
    margin-top: 8px; padding-top: 6px; border-top: 1px solid var(--border-soft);
    font-size: 10px; font-weight: 600;
    color: var(--brand-primary);
    cursor: pointer; user-select: none;
}
.legend-info-link:hover { text-decoration: underline; }

/* Interpolační pole: silnice a voda prosvítají */
.interp-overlay { mix-blend-mode: multiply; }

/* ---------- Vítr (leaflet-velocity readout) ---------- */
.leaflet-control-velocity {
    background: var(--surface-translucent);
    padding: 4px 10px;
    border-radius: 10px;
    border: 1px solid var(--border-soft);
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.12);
    font-family: 'Inter', sans-serif;
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
}
.leaflet-bottom.leaflet-right .leaflet-control-velocity { margin: 0 10px 8px 0; }

/* ---------- Indikátor aktualizace ---------- */
.update-indicator {
    position: fixed;
    bottom: 10px; left: 10px;
    background: var(--surface);
    padding: 6px 12px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    border: 1px solid var(--border-soft);
    display: flex; flex-direction: column; align-items: flex-start;
    gap: 2px;
}
.update-row { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--text-muted); }
.update-subtitle { font-size: 9px; color: var(--text-faint); margin-left: 16px; font-weight: 500; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--brand-secondary); }
.status-dot.error { background: var(--aqi-unhealthy); }

/* ---------- Popupy ---------- */
.leaflet-popup-content-wrapper {
    background: var(--surface);
    color: var(--text-dark);
    border-radius: 10px;
    padding: 0;
    border: none;
    font-family: 'Inter', sans-serif;
    min-width: 250px;
    overflow: hidden; /* hlavička kopíruje zaoblení rohů */
}
/* Leaflet dává obsahu okraj 13px/24px — hlavička musí jít až ke kraji bubliny */
.leaflet-popup-content {
    margin: 0;
    line-height: 1.4;
}
.popup-header {
    background: var(--surface-3);
    padding: 11px 44px 11px 15px; /* vpravo místo pro × */
    border-bottom: 1px solid var(--border-soft);
    font-family: 'Familjen Grotesk', sans-serif;
    font-weight: 600; font-size: 14px;
    line-height: 1.3;
}
/* Zavírací × uvnitř hlavičky, jako tlačítko. Plná brand barva: bílý kroužek
   s šedým × na skoro bílé hlavičce na mobilu často splýval s pozadím. */
.leaflet-container a.leaflet-popup-close-button {
    top: 8px; right: 8px;
    width: 26px; height: 26px;
    padding: 0;
    border-radius: 50%;
    background: var(--brand-primary);
    border: 1px solid var(--brand-primary);
    color: #ffffff;
    font: 600 18px/24px 'Inter', sans-serif;
    text-align: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
    z-index: 2;
}
.leaflet-container a.leaflet-popup-close-button:hover {
    background: var(--brand-secondary);
    border-color: var(--brand-secondary);
    color: white;
}
.popup-content-body { padding: 15px; }
.popup-hero { text-align: center; padding-bottom: 12px; margin-bottom: 12px; border-bottom: 1px solid var(--border-soft); }
.popup-pm-value {
    font-size: 32px; font-weight: 700; line-height: 1; margin-bottom: 4px;
    font-family: 'Familjen Grotesk', sans-serif;
}
.popup-detail {
    font-size: 12px; color: var(--text-muted);
    margin: 4px 0;
    display: flex; justify-content: space-between; align-items: center;
}
.popup-detail.main-label { justify-content: center; color: var(--text-muted); font-size: 13px; }
/* Ostatní veličiny: štítky vedle sebe, název u hodnoty */
.popup-others { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 2px; }
.popup-chip {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 8px;
    border: 1px solid var(--border-c); border-radius: 12px;
    background: var(--surface-3);
    font-size: 11px; color: var(--text-muted);
    white-space: nowrap;
}
.popup-chip strong { color: var(--text-dark); font-weight: 600; }
/* Štítek látky je tlačítko: přepne mapu i popup na tu látku */
.popup-chip-link { cursor: pointer; font-family: inherit; }
.popup-chip-link:hover { border-color: var(--brand-primary); background: var(--surface-brand); }
.popup-chip-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.popup-source {
    margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--border-soft);
    font-size: 10px; color: var(--text-faint);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.popup-source a { color: inherit; }
.popup-quality {
    display: none;
    margin-bottom: 8px; padding: 5px 8px;
    background: #fff3cd; border: 1px solid #ffc107; border-radius: 4px;
    font-size: 11px; color: #856404;
}
/* Box grafu má pevnou výšku ve všech stavech (načítání, 24 h, 5 dní), aby
   popup neměnil velikost; stav se píše přes plátno. `empty` = bez dat. */
.chart-container { position: relative; overflow: hidden; }
.chart-container.loading canvas { visibility: hidden; }
.chart-container.empty { height: 36px; }
.chart-container.empty canvas { display: none; }
.chart-status {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    padding: 0 10px; text-align: center;
    font-size: 11px; color: var(--text-faint);
}

/* ---------- Modal (metodika) ---------- */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(17, 24, 39, 0.55);
    z-index: 2000;
    display: flex; align-items: center; justify-content: center;
    padding: 14px;
}
.modal {
    background: var(--surface);
    border-radius: 12px;
    max-width: 460px;
    width: 100%;
    max-height: 92vh;
    overflow-y: auto;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    padding: 20px;
}
.modal h2 {
    font-family: 'Familjen Grotesk', sans-serif;
    font-size: 18px; color: var(--brand-primary);
    margin-bottom: 14px;
}
.modal .btn-row { display: flex; gap: 8px; margin-top: 18px; }
.btn {
    flex: 1;
    padding: 10px;
    border: none; border-radius: 8px;
    font-family: 'Familjen Grotesk', sans-serif;
    font-size: 14px; font-weight: 600;
    cursor: pointer;
}
.btn-primary { background: var(--brand-primary); color: white; }

.info-lead {
    font-size: 13px; line-height: 1.55;
    background: var(--surface-brand);
    border-left: 3px solid var(--brand-primary);
    border-radius: 0 8px 8px 0;
    padding: 10px 12px;
    margin-bottom: 12px;
}
.info-sec { margin: 8px 0; border: 1px solid var(--border-c); border-radius: 8px; padding: 8px 10px; }
.info-sec summary {
    font-family: 'Familjen Grotesk', sans-serif;
    font-size: 13px; font-weight: 600;
    color: var(--text-dark);
    cursor: pointer; user-select: none;
}
.info-sec[open] summary { color: var(--brand-primary); margin-bottom: 6px; }
.info-sec p { font-size: 12px; line-height: 1.5; color: var(--text-muted); margin: 6px 0; }
.info-sec a { color: var(--brand-primary); }
.info-table { width: 100%; border-collapse: collapse; font-size: 11px; margin: 6px 0; }
.info-table th { text-align: left; color: var(--text-dark); padding: 3px 4px; border-bottom: 1px solid var(--border-c); }
.info-table td { padding: 4px; border-bottom: 1px solid var(--border-soft); color: var(--text-muted); vertical-align: top; line-height: 1.4; }
.info-legal {
    margin-top: 16px; padding-top: 10px; border-top: 1px solid var(--border-soft);
    font-size: 11px; line-height: 1.6; color: var(--text-muted);
}
.info-legal a { color: var(--brand-primary); text-decoration: none; }
.info-legal a:hover { text-decoration: underline; }

/* ---------- Toast ---------- */
.toast {
    position: fixed;
    bottom: 60px; left: 50%;
    transform: translateX(-50%);
    background: var(--brand-primary);
    color: white;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 13px;
    z-index: 3000;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
    max-width: 90vw;
    text-align: center;
}
.toast.error { background: var(--aqi-unhealthy); }

/* ---------- Popup graf: přepínač rozsahu ---------- */
.chart-container { height: 200px; margin-bottom: 8px; }
.chart-range {
    display: flex;
    gap: 4px;
    justify-content: center;
    margin-bottom: 6px;
}
.chart-range-btn {
    border: 1px solid var(--border-c);
    background: var(--surface);
    color: var(--text-muted);
    font-family: 'Inter', sans-serif;
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 10px;
    cursor: pointer;
}
.chart-range-btn.active {
    background: var(--brand-primary);
    border-color: var(--brand-primary);
    color: white;
}

/* ---------- Výstraha ČHMÚ (alerts.js) ----------
   Ukotvená k levému okraji uprostřed výšky — jediný volný pruh obrazovky
   (lišta má horní okraj, legenda pravý, indikátor dolní). Dva stavy řízené z JS:
   .open = karta vyjetá, .retracted = záložka. Bez třídy je obojí mimo plátno. */
.nc-alert {
    position: fixed;
    left: 0;
    top: 46%;
    z-index: 1100;
    --lvl: #eab308;
    --lvl-soft: #fef9c3;
}
.nc-alert.lvl-3 { --lvl: #ea580c; --lvl-soft: #ffedd5; }
.nc-alert.lvl-4 { --lvl: #dc2626; --lvl-soft: #fee2e2; }

.nc-alert-card {
    position: relative;
    display: flex; align-items: flex-start; gap: 10px;
    width: max-content;
    max-width: min(330px, calc(100vw - 60px));
    padding: 11px 32px 11px 12px;
    background: var(--surface);
    border-left: 5px solid var(--lvl);
    border-radius: 0 14px 14px 0;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.22);
    cursor: pointer;
    transform: translateX(-108%);
    opacity: 0;
    transition: transform 0.62s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
}
.nc-alert.open .nc-alert-card { transform: translateX(0); opacity: 1; }
.nc-alert-card:focus-visible { outline: 2px solid var(--brand-primary); outline-offset: 2px; }
.nc-alert.is-smog .nc-alert-card {
    background: linear-gradient(100deg, var(--lvl-soft) 0%, var(--surface) 65%);
}
.nc-alert-icon {
    flex: 0 0 auto;
    width: 30px; height: 30px;
    display: grid; place-items: center;
    border-radius: 50%;
    background: var(--lvl-soft);
    font-size: 17px; line-height: 1;
}
.nc-alert.lvl-4 .nc-alert-icon { animation: ncAlertPulse 2.4s ease-in-out 3; }
@keyframes ncAlertPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(220, 38, 38, 0.5); }
    50%      { box-shadow: 0 0 0 7px rgba(220, 38, 38, 0); }
}
.nc-alert-body { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.nc-alert-kicker {
    font-size: 9.5px; font-weight: 700;
    letter-spacing: 0.06em; text-transform: uppercase;
    color: var(--lvl);
}
.nc-alert-title {
    font-family: 'Familjen Grotesk', sans-serif;
    font-size: 14px; font-weight: 600; line-height: 1.25;
    color: var(--text-dark);
}
.nc-alert-meta { font-size: 11px; color: var(--text-muted); }
.nc-alert-more { font-size: 10.5px; font-weight: 600; color: var(--brand-primary); margin-top: 1px; }
.nc-alert-x {
    position: absolute; top: 3px; right: 3px;
    width: 24px; height: 24px;
    border: 0; border-radius: 6px;
    background: transparent;
    color: var(--text-faint);
    font-size: 19px; line-height: 1;
    cursor: pointer;
}
.nc-alert-x:hover { background: var(--surface-2); color: var(--text-dark); }
.nc-alert-tab {
    position: absolute; left: 0; top: 50%;
    display: flex; align-items: center; gap: 3px;
    padding: 7px 9px 7px 6px;
    background: var(--surface);
    border: 0; border-left: 4px solid var(--lvl);
    border-radius: 0 11px 11px 0;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.2);
    font-size: 15px; line-height: 1;
    cursor: pointer;
    transform: translate(-115%, -50%);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.nc-alert.retracted .nc-alert-tab { transform: translate(0, -50%); }
.nc-alert-tab b { font-size: 10px; font-weight: 700; color: var(--lvl); }

/* Detail v modalu */
.nc-alert-scope { font-size: 12px; color: var(--text-muted); margin-bottom: 12px; }
.nc-alert-item {
    border-left: 4px solid var(--lvl);
    background: var(--surface-3);
    border-radius: 0 8px 8px 0;
    padding: 10px 12px;
    margin-bottom: 10px;
    --lvl: #eab308;
}
.nc-alert-item.lvl-3 { --lvl: #ea580c; }
.nc-alert-item.lvl-4 { --lvl: #dc2626; }
.nc-alert-item-head { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 14px; }
.nc-alert-chip {
    font-size: 9.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
    color: #fff; background: var(--lvl);
    padding: 2px 6px; border-radius: 999px;
}
.nc-alert-item-when { font-size: 11px; color: var(--text-muted); margin: 3px 0 6px; }
.nc-alert-item p { font-size: 12px; line-height: 1.5; margin-bottom: 5px; color: var(--text-dark); }
.nc-alert-instr, .nc-alert-where { color: var(--text-muted); }
.nc-alert-src { font-size: 11px; color: var(--text-muted); line-height: 1.5; margin-top: 12px; }
.nc-alert-src a { color: var(--brand-primary); }

@media (prefers-reduced-motion: reduce) {
    .nc-alert-card, .nc-alert-tab { transition-duration: 0.01ms; }
    .nc-alert.lvl-4 .nc-alert-icon { animation: none; }
}

/* ---------- Mobil ---------- */
@media (max-width: 768px) {
    .pollutant-bar { left: 10px; right: 10px; transform: none; max-width: none; }
    .pollutant-chip { font-size: 12px; padding: 7px 11px; }
    /* Obsah lišty centrovaný, ale při přetečení stále posuvný (auto okraje
       na krajních prvcích — justify-content:center by levý kraj ořízl) */
    .pollutant-chip:first-child { margin-left: auto; }
    .pollutant-chip:last-child { margin-right: auto; }

    .nc-alert { top: 50%; }
    .nc-alert-card { max-width: calc(100vw - 52px); padding: 10px 30px 10px 10px; }
    .nc-alert-title { font-size: 13px; }
    .nc-alert-meta { font-size: 10.5px; }

    /* Popup: menší, s vnitřním scrollem, hlavička s × zůstává nahoře.
       Šířku (minWidth) a odsazení autoPan od lišty nastavuje app.js. */
    .leaflet-popup-content-wrapper { min-width: 0; border-radius: 9px; }
    .leaflet-popup-content {
        max-height: calc(100dvh - 130px);
        overflow-y: auto;
        overscroll-behavior: contain;
    }
    .popup-header {
        position: sticky; top: 0; z-index: 1;
        padding: 9px 44px 9px 12px;
        font-size: 13px;
    }
    .leaflet-container a.leaflet-popup-close-button {
        top: 5px; right: 5px;
        width: 30px; height: 30px;
        font: 600 19px/28px 'Inter', sans-serif;
    }
    .popup-content-body { padding: 10px 12px 12px; }
    .popup-hero { padding-bottom: 8px; margin-bottom: 8px; }
    .popup-pm-value { font-size: 26px; }
    .popup-detail.main-label { font-size: 12px; }
    .popup-detail { font-size: 11px; margin: 3px 0; }
    .chart-container { height: 150px; }
    .chart-range-btn { font-size: 10px; padding: 3px 7px; }
    .popup-quality { font-size: 10px; }
    .leaflet-top.leaflet-left .leaflet-control { margin-top: 52px; }
    /* top nastavuje layoutLegend() v app.js; 62px je fallback bez JS */
    .legend { top: 62px; right: 10px; left: auto; min-width: 120px; padding: 8px 10px; max-width: 60vw; }
    .legend-content:not(.collapsed) { max-height: calc(100dvh - 140px); overflow-y: auto; }
    .legend-title { font-size: 11px; }
    .legend-item { font-size: 9px; margin: 3px 0; }
    .legend-color { width: 10px; height: 10px; margin-right: 6px; }

    .update-indicator {
        bottom: calc(8px + env(safe-area-inset-bottom)); left: 8px;
        flex-direction: row; align-items: center; gap: 5px;
        padding: 4px 9px; border-radius: 10px;
    }
    .update-label { display: none; }
    .update-row { font-size: 10px; gap: 5px; }
    .update-subtitle { margin-left: 0; font-size: 9px; }
    .update-subtitle::before { content: '· '; color: #d1d5db; }

    .leaflet-bottom.leaflet-left .leaflet-control-velocity {
        margin: 0 0 calc(40px + env(safe-area-inset-bottom)) 8px;
        font-size: 10px;
        max-width: 70vw;
        white-space: normal;
    }
    .leaflet-bottom.leaflet-right .leaflet-control-attribution {
        font-size: 9px;
        background: var(--surface-translucent);
    }
}