:root {
    /* Primärfarben Petrol */
    --nekoa-tief:        #063D35;
    --nekoa-dunkel:      #095C50;
    --nekoa-primary:     #0D7A6B;
    --nekoa-hell:        #14A896;
    --nekoa-akzent:      #B2DED8;
    --nekoa-bg:          #E0F4F1;

    /* Neutrals */
    --nekoa-text:        #2C2C2A;
    --nekoa-text-muted:  #5F5E5A;
    --nekoa-border:      #D3D1C7;
    --nekoa-surface:     #F1EFE8;
    --nekoa-white:       #FFFFFF;
    --nekoa-card-bg:     #FFFFFF;
    --nekoa-row-alt:     #f8fcfb;

    /* Semantisch */
    --nekoa-success:     #14A896;
    --nekoa-warning:     #BA7517;
    --nekoa-danger:      #A32D2D;
    --nekoa-info:        #185FA5;

    --nekoa-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

    --nekoa-text-xs:   11px;
    --nekoa-text-sm:   13px;
    --nekoa-text-base: 14px;
    --nekoa-text-md:   16px;
    --nekoa-text-lg:   18px;
    --nekoa-text-xl:   22px;
    --nekoa-text-2xl:  26px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--nekoa-font);
    font-size: var(--nekoa-text-base);
    color: var(--nekoa-text);
    background: var(--nekoa-surface);
}

a { color: var(--nekoa-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { font-weight: 500; margin: 0 0 12px; }

/* Layout */
.nekoa-app { display: flex; flex-direction: column; min-height: 100vh; }

.nekoa-header {
    background: var(--nekoa-primary);
    color: white;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    flex-shrink: 0;
}
.nekoa-header .brand { display: flex; align-items: center; gap: 10px; font-weight: 500; letter-spacing: -0.8px; font-size: var(--nekoa-text-lg); }

/* Live-Zahlen (nur Desktop, siehe Media Query) - ersetzt die frühere, zur
   Sidebar redundante Top-Nav. */
.nekoa-header-stats { display: flex; gap: 24px; }
.nekoa-header-stats .stat { display: flex; flex-direction: column; align-items: center; line-height: 1.2; }
.nekoa-header-stats .stat strong { font-size: var(--nekoa-text-md); font-weight: 600; }
.nekoa-header-stats .stat span { font-size: 10px; color: rgba(255,255,255,0.75); white-space: nowrap; }

.nekoa-header .avatar {
    width: 30px; height: 30px; border-radius: 50%;
    background: var(--nekoa-dunkel); color: white;
    display: flex; align-items: center; justify-content: center;
    font-size: var(--nekoa-text-sm); font-weight: 500;
    flex-shrink: 0;
    border: none; cursor: pointer;
}

.nekoa-user-menu { position: relative; flex-shrink: 0; }
.nekoa-user-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--nekoa-card-bg);
    border: 0.5px solid var(--nekoa-border);
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    min-width: 200px;
    padding: 8px 0;
    z-index: 40;
}
.nekoa-user-menu.open .nekoa-user-dropdown { display: block; }
.nekoa-user-dropdown-info { padding: 6px 16px 10px; display: flex; flex-direction: column; gap: 2px; }
.nekoa-user-dropdown-info strong { font-size: var(--nekoa-text-sm); color: var(--nekoa-text); }
.nekoa-user-dropdown-info span { font-size: var(--nekoa-text-xs); color: var(--nekoa-text-muted); }
.nekoa-user-dropdown-divider { height: 0.5px; background: var(--nekoa-border); margin: 6px 0; }
.nekoa-user-dropdown a { display: block; padding: 8px 16px; font-size: var(--nekoa-text-sm); color: var(--nekoa-text); }
.nekoa-user-dropdown a:hover { background: var(--nekoa-bg); text-decoration: none; }

/* Hamburger-Menü - nur auf schmalen Viewports sichtbar (siehe Media Queries) */
.nekoa-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    width: 36px; height: 36px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-shrink: 0;
}
.nekoa-nav-toggle span { display: block; width: 20px; height: 2px; background: white; border-radius: 2px; }
.nekoa-nav-backdrop { display: none; position: fixed; inset: 0; background: rgba(6, 61, 53, 0.45); z-index: 29; }

.nekoa-body { display: flex; flex: 1; min-width: 0; }

.nekoa-sidebar {
    width: 220px;
    background: var(--nekoa-card-bg);
    border-right: 0.5px solid var(--nekoa-border);
    flex-shrink: 0;
    padding: 16px 0;
}
.nekoa-sidebar a {
    display: block;
    padding: 10px 20px;
    color: var(--nekoa-text);
    font-size: var(--nekoa-text-sm);
    border-left: 3px solid transparent;
}
.nekoa-sidebar a:hover { background: var(--nekoa-bg); text-decoration: none; }
.nekoa-sidebar a.active {
    background: var(--nekoa-bg);
    border-left: 3px solid var(--nekoa-primary);
    font-weight: 500;
}

/* Live-Puls-Punkte: Loxone-Anbindung in der Sidebar, Cronjob-Status
   in der Kopfzeile - rein dekorativ/informativ, kein zusätzlicher
   Live-Ping beim Seitenaufruf (siehe BuildingModel::hasActiveLoxoneConnection /
   MeterModel::countPulledToday). */
.nav-live-pulse, .cron-pulse {
    display: inline-block;
    width: 7px; height: 7px;
    border-radius: 50%;
    margin-left: 5px;
    vertical-align: middle;
}
.nav-live-pulse { background: var(--nekoa-hell); animation: nekoa-pulse 2s infinite; }
.cron-pulse-ok { background: var(--nekoa-hell); animation: nekoa-pulse 2s infinite; }
.cron-pulse-partial { background: var(--nekoa-warning); }
.cron-pulse-off { background: rgba(255,255,255,0.4); }
@keyframes nekoa-pulse {
    0% { box-shadow: 0 0 0 0 rgba(20,168,150,0.5); }
    70% { box-shadow: 0 0 0 5px rgba(20,168,150,0); }
    100% { box-shadow: 0 0 0 0 rgba(20,168,150,0); }
}
@media (prefers-reduced-motion: reduce) {
    .nav-live-pulse, .cron-pulse-ok { animation: none; }
}

.nekoa-main { flex: 1; min-width: 0; padding: 24px; background: var(--nekoa-surface); }

/* Wiederverwendbare Layout-Bausteine - ersetzen die früher pro Seite
   wiederholten inline display:flex-Styles, damit Media Queries sie hier
   zentral responsive machen können (inline-Styles liessen sich sonst
   nicht gezielt überschreiben). */
.nekoa-page-header { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.nekoa-form-row { display: flex; gap: 12px; }
.nekoa-stat-row { display: flex; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.nekoa-stat-row .nekoa-card { flex: 1; min-width: 140px; text-align: center; }

/* Cards */
.nekoa-card {
    background: var(--nekoa-card-bg);
    border: 0.5px solid var(--nekoa-border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
}

/* Buttons */
.btn {
    display: inline-block;
    border-radius: 8px;
    padding: 8px 16px;
    font-size: var(--nekoa-text-sm);
    font-weight: 500;
    border: 0.5px solid transparent;
    cursor: pointer;
}
.btn-primary { background: var(--nekoa-primary); color: white; }
.btn-primary:hover { background: var(--nekoa-dunkel); text-decoration: none; }
.btn-secondary { border: 0.5px solid var(--nekoa-primary); color: var(--nekoa-primary); background: var(--nekoa-card-bg); }
.btn-secondary:hover { background: var(--nekoa-bg); text-decoration: none; }
.btn-danger { background: var(--nekoa-danger); color: white; }

/* Forms */
label { display: block; font-size: var(--nekoa-text-sm); color: var(--nekoa-text-muted); margin-bottom: 4px; }
input, select, textarea {
    width: 100%;
    font-family: var(--nekoa-font);
    font-size: var(--nekoa-text-base);
    padding: 8px 12px;
    border: 0.5px solid var(--nekoa-border);
    border-radius: 8px;
    margin-bottom: 14px;
    background: var(--nekoa-card-bg);
    color: var(--nekoa-text);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--nekoa-primary); }
.form-group { margin-bottom: 14px; }

/* Tabellen */
table { width: 100%; border-collapse: collapse; font-size: var(--nekoa-text-sm); }
thead th {
    background: var(--nekoa-bg);
    text-align: left;
    padding: 10px 12px;
    font-weight: 500;
    border-bottom: 0.5px solid var(--nekoa-border);
}
tbody td { padding: 10px 12px; border-bottom: 0.5px solid var(--nekoa-border); }
tbody tr:nth-child(even) { background: var(--nekoa-row-alt); }

/* Verbrauchs-Ranking (Mieter-Übersicht) */
.consumption-bar-wrap {
    position: relative;
    background: var(--nekoa-bg);
    border-radius: 6px;
    height: 20px;
    min-width: 110px;
    overflow: hidden;
}
.consumption-bar { background: var(--nekoa-hell); height: 100%; border-radius: 6px; transition: width 0.3s ease; }
.consumption-bar-label {
    position: absolute; top: 0; left: 8px; right: 8px; height: 100%;
    display: flex; align-items: center;
    font-size: var(--nekoa-text-xs); font-weight: 500; color: var(--nekoa-tief);
}

/* Badges */
.badge {
    display: inline-block;
    border-radius: 20px;
    font-size: var(--nekoa-text-xs);
    padding: 2px 10px;
    font-weight: 500;
}
.badge-success { background: var(--nekoa-akzent); color: var(--nekoa-tief); }
.badge-warning { background: #f4e2c8; color: var(--nekoa-warning); }
.badge-danger  { background: #f2d6d6; color: var(--nekoa-danger); }
.badge-info    { background: #d4e4f2; color: var(--nekoa-info); }

/* Alerts */
.alert { border-radius: 8px; padding: 10px 16px; margin-bottom: 16px; font-size: var(--nekoa-text-sm); }
.alert-error   { background: #f2d6d6; color: var(--nekoa-danger); }
.alert-success { background: var(--nekoa-akzent); color: var(--nekoa-tief); }
.alert-info    { background: #d4e4f2; color: var(--nekoa-info); }

/* Login-Seite */
.nekoa-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--nekoa-tief);
    padding: 16px;
}
.nekoa-login-box {
    background: var(--nekoa-card-bg);
    border-radius: 12px;
    padding: 36px;
    width: 360px;
    max-width: 100%;
}
.nekoa-login-box .brand {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 24px; justify-content: center;
}
.nekoa-login-box .brand .wortmarke {
    font-weight: 500; letter-spacing: -0.8px; font-size: var(--nekoa-text-xl); color: var(--nekoa-primary);
}
.nekoa-login-box .subzeile {
    text-align: center; text-transform: uppercase;
    letter-spacing: 0.12em; font-size: 8.5px; color: var(--nekoa-text-muted);
    margin: -18px 0 24px;
}
.nekoa-login-box .btn { width: 100%; text-align: center; }

.mandant-select-list a {
    display: block; padding: 14px 18px; border: 0.5px solid var(--nekoa-border);
    border-radius: 8px; margin-bottom: 10px; color: var(--nekoa-text);
}
.mandant-select-list a:hover { border-color: var(--nekoa-primary); background: var(--nekoa-bg); text-decoration: none; }

/* Gebäude-Dashboard KPI-Kacheln */
.kpi-tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 18px; }
.kpi-tile {
    border-radius: 12px;
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: white;
}
.kpi-tile .kpi-label { font-size: var(--nekoa-text-xs); opacity: 0.85; text-transform: uppercase; letter-spacing: 0.04em; }
.kpi-tile .kpi-value { font-size: 28px; font-weight: 600; line-height: 1; }
.kpi-tile .kpi-value small { font-size: var(--nekoa-text-sm); font-weight: 400; opacity: 0.8; }
.kpi-tile-pv { background: linear-gradient(135deg, var(--nekoa-primary), var(--nekoa-hell)); }
.kpi-tile-self { background: linear-gradient(135deg, var(--nekoa-tief), var(--nekoa-dunkel)); }
.kpi-tile-grid { background: linear-gradient(135deg, var(--nekoa-warning), #d99a3d); }
.kpi-tile-export { background: linear-gradient(135deg, var(--nekoa-info), #3d7fc4); }

/* Gebäude-Dashboard Flussdiagramm */
.flow-toolbar { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; }
.flow-hint { font-size: var(--nekoa-text-xs); color: var(--nekoa-text-muted); }
.flow-lane { margin-bottom: 24px; }
.flow-lane h3 { font-size: var(--nekoa-text-md); margin-bottom: 10px; }
.flow-canvas {
    position: relative;
    width: 100%;
    height: 480px;
    background:
        linear-gradient(var(--nekoa-surface), var(--nekoa-surface));
    background-color: var(--nekoa-surface);
    border: 0.5px dashed var(--nekoa-border);
    border-radius: 12px;
    overflow: hidden;
}
.flow-canvas.flow-flat { height: 170px; }
.flow-canvas svg.flow-lines { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; }
.flow-canvas svg.flow-lines path {
    fill: none;
    stroke: var(--nekoa-akzent);
    stroke-width: 2;
    stroke-dasharray: 6 6;
    animation: flow-dash 1.1s linear infinite;
}
.flow-canvas svg.flow-lines marker path { fill: var(--nekoa-akzent); }

@keyframes flow-dash {
    to { stroke-dashoffset: -24; }
}
@media (prefers-reduced-motion: reduce) {
    .flow-canvas svg.flow-lines path { animation: none; }
}
.flow-node {
    position: absolute;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    width: 120px;
    text-align: center;
    user-select: none;
    z-index: 2;
}
.flow-canvas.unlocked .flow-node { cursor: grab; }
.flow-canvas.unlocked .flow-node:active { cursor: grabbing; }
.flow-node .flow-icon { box-shadow: 0 2px 6px rgba(6, 61, 53, 0.18); border-radius: 10px; }
.flow-node .flow-label { font-size: var(--nekoa-text-xs); font-weight: 500; color: var(--nekoa-text); line-height: 1.25; }
.flow-node .flow-tenant { font-size: 10px; color: var(--nekoa-text-muted); line-height: 1.2; margin-top: -2px; }
.flow-node .flow-value { font-size: var(--nekoa-text-xs); color: var(--nekoa-text-muted); }
.flow-node .flow-live { font-size: var(--nekoa-text-xs); color: var(--nekoa-hell); font-weight: 500; }
.flow-node .flow-month { font-size: 10px; color: var(--nekoa-info); font-weight: 500; display: none; }
.flow-canvas.show-month .flow-node .flow-month { display: block; }
.flow-node.flow-junction { width: 70px; }
.flow-node.flow-junction .flow-label { font-weight: 500; }

/* ===== Mobile/Tablet ===== */

@media (max-width: 860px) {
    .nekoa-header-stats { display: none; }
    .nekoa-nav-toggle { display: flex; }

    .nekoa-sidebar {
        position: fixed;
        top: 52px;
        left: 0;
        bottom: 0;
        width: 240px;
        max-width: 80vw;
        z-index: 30;
        transform: translateX(-100%);
        transition: transform 0.2s ease;
        overflow-y: auto;
        box-shadow: 2px 0 16px rgba(0, 0, 0, 0.2);
    }
    .nekoa-app.nav-open .nekoa-sidebar { transform: translateX(0); }
    .nekoa-app.nav-open .nekoa-nav-backdrop { display: block; }

    .nekoa-main { padding: 18px; }

    /* Feste zweispaltige Grids (Rechner/Formular mit fixer Sidebar-Breite,
       siehe jeweiliger Seiten-<style>-Block) auf eine Spalte umstellen. */
    .config-layout, .kunde-form-layout { grid-template-columns: 1fr !important; }
    .rechner-summary { position: static !important; }
}

@media (max-width: 600px) {
    body { font-size: var(--nekoa-text-base); }
    .nekoa-main { padding: 14px; }
    .nekoa-header { padding: 0 12px; gap: 10px; }
    .nekoa-header .brand { font-size: var(--nekoa-text-base); gap: 8px; }

    h1 { font-size: var(--nekoa-text-xl); }
    h2 { font-size: var(--nekoa-text-lg); }

    .nekoa-card { padding: 14px; border-radius: 10px; }

    /* Tabellen innerhalb einer Card horizontal scrollbar statt
       Layout-Bruch, statt jede Tabelle einzeln in einen Wrapper
       packen zu müssen. */
    .nekoa-card { overflow-x: auto; }

    /* Grössere Touch-Targets */
    .btn { padding: 10px 16px; }
    input, select, textarea { padding: 10px 12px; font-size: var(--nekoa-text-md); }

    .nekoa-page-header { flex-wrap: wrap; align-items: flex-start; }
    .nekoa-form-row { flex-direction: column; gap: 0; }

    .nekoa-stat-row { gap: 10px; }
    .nekoa-stat-row .nekoa-card { min-width: calc(50% - 5px); padding: 12px; }

    .flow-canvas { overflow-x: auto; }

    .nekoa-login-box { padding: 24px; }
}

/* Dark-Mode Toggle-Button (Kopfzeile) */
.theme-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    width: 30px; height: 30px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 15px;
    flex-shrink: 0;
    color: white;
}
.theme-toggle:hover { background: rgba(255,255,255,0.15); }
.theme-toggle-icon-light { display: none; }
:root[data-theme="dark"] .theme-toggle-icon-dark { display: none; }
:root[data-theme="dark"] .theme-toggle-icon-light { display: inline; }

/* Dark Mode - manuell per Toggle gesetzt (data-theme-Attribut auf <html>,
   siehe partials/header.php + nekoa-nav.js), kein automatisches
   prefers-color-scheme, damit bestehende Nutzer nicht überrascht werden. */
:root[data-theme="dark"] {
    --nekoa-bg:          #0F2F2A;
    --nekoa-surface:     #0B211D;
    --nekoa-card-bg:     #163732;
    --nekoa-row-alt:     #11281F;
    --nekoa-text:        #E8E6DE;
    --nekoa-text-muted:  #9FB3AD;
    --nekoa-border:      #2A4A43;
    --nekoa-akzent:      #1F5A4E;
}
:root[data-theme="dark"] body { background: var(--nekoa-surface); }
:root[data-theme="dark"] .flow-canvas { background-color: var(--nekoa-card-bg); }
:root[data-theme="dark"] .badge-success { color: var(--nekoa-hell); }
:root[data-theme="dark"] .alert-success { color: var(--nekoa-hell); }