:root {
    --portal-primary:    #0D7A6B;
    --portal-dark:       #063D35;
    --portal-bg:         #E0F4F1;
    --portal-surface:    #F1EFE8;
    --portal-text:       #2C2C2A;
    --portal-text-muted: #5F5E5A;
    --portal-border:     #D3D1C7;
    --portal-white:      #FFFFFF;
    --portal-danger:     #A32D2D;
    --portal-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--portal-font);
    font-size: 15px;
    color: var(--portal-text);
    background: var(--portal-surface);
}

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

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

.portal-header {
    background: var(--portal-dark);
    color: white;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.portal-header .brand { display: flex; align-items: center; gap: 10px; font-weight: 500; }
.portal-header .brand img { max-height: 32px; max-width: 140px; }
.portal-header .tenant { font-size: 13px; opacity: 0.85; display: flex; align-items: center; gap: 14px; }
.portal-header .tenant a { color: white; opacity: 0.85; }

.portal-main { max-width: 760px; margin: 0 auto; padding: 32px 20px 60px; }

.portal-card {
    background: white;
    border: 0.5px solid var(--portal-border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
}

.portal-login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--portal-dark);
    padding: 20px;
}
.portal-login-box { background: white; border-radius: 14px; padding: 36px; width: 380px; max-width: 100%; }
.portal-login-box .brand { text-align: center; font-weight: 500; font-size: 20px; color: var(--portal-primary); margin-bottom: 24px; }

label { display: block; font-size: 13px; color: var(--portal-text-muted); margin-bottom: 4px; }
.form-group { margin-bottom: 16px; }
input[type=email], input[type=password], input[type=text], input[type=date], input[type=file], select, textarea {
    width: 100%;
    font-family: var(--portal-font);
    font-size: 15px;
    padding: 10px 12px;
    border: 0.5px solid var(--portal-border);
    border-radius: 8px;
    margin-bottom: 16px;
    background: white;
    color: var(--portal-text);
}

.btn {
    display: inline-block;
    border-radius: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border: 0.5px solid transparent;
    cursor: pointer;
    width: 100%;
    text-align: center;
}
.btn-primary { background: var(--portal-primary); color: white; }
.btn-primary:hover { background: var(--portal-dark); text-decoration: none; }

.alert { border-radius: 8px; padding: 10px 16px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #d7ece8; color: var(--portal-dark); }
.alert-error { background: #f2d6d6; color: var(--portal-danger); }

.portal-feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.portal-feature-card {
    border: 0.5px dashed var(--portal-border);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    color: var(--portal-text-muted);
}
.portal-feature-card h3 { color: var(--portal-text); font-size: 15px; }
.portal-feature-card .badge {
    display: inline-block; font-size: 11px; background: var(--portal-bg);
    color: var(--portal-primary); border-radius: 20px; padding: 2px 10px; margin-top: 8px;
}

.portal-meter-section + .portal-meter-section { margin-top: 4px; }

/* Kontaktkacheln (Hauswart/Verwaltung) + Infobereich */
.portal-contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.portal-contact-tile {
    background: var(--portal-bg);
    border-radius: 10px;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.portal-contact-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--portal-primary); font-weight: 500; }
.portal-contact-name { font-weight: 500; margin-bottom: 2px; }
.portal-contact-tile a { font-size: 13px; }
.portal-info-card { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.portal-info-image { width: 64px; height: 64px; object-fit: cover; border-radius: 10px; flex-shrink: 0; }

.portal-stat-row { display: flex; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.portal-stat { flex: 1; min-width: 130px; }
.portal-stat .label { font-size: 12px; color: var(--portal-text-muted); margin-bottom: 4px; }
.portal-stat .value { font-size: 22px; font-weight: 500; color: var(--portal-dark); }
.portal-stat .value .unit { font-size: 13px; font-weight: 400; color: var(--portal-text-muted); margin-left: 3px; }

.portal-compare-badge {
    display: inline-block; font-size: 11px; border-radius: 20px;
    padding: 2px 10px; margin-top: 6px;
}
.portal-compare-badge.up { background: #f2d6d6; color: var(--portal-danger); }
.portal-compare-badge.down { background: #d7ece8; color: var(--portal-dark); }

/* Auszeichnungen (Gamification Phase 3) - bewusst positiver Akzent statt
   der up/down-Warnfarblogik von .portal-compare-badge, da es sich um
   Erfolge statt Warnungen handelt. */
.portal-achievement-badge {
    display: inline-block; font-size: 12px; font-weight: 500; border-radius: 20px;
    padding: 4px 12px; margin: 0 6px 6px 0; background: var(--portal-primary); color: white;
}

.portal-chart-wrap { margin-top: 8px; }

@media (max-width: 560px) {
    .portal-feature-grid { grid-template-columns: 1fr; }
    .portal-stat-row { gap: 12px; }
}

/* Energiefluss-Diagramm (Dashboard, ganz oben) - eigenständige dunkle
   Karte für garantierten Kontrast unabhängig von der mandantenspezifischen
   --portal-primary-Farbe; nur Linien/Akzente nutzen --portal-primary. */
.portal-flow-card {
    background: var(--portal-dark);
    color: white;
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
}
.portal-flow-card h3 { color: white; margin: 0 0 12px; }
.portal-flow-meta { font-size: 12px; color: rgba(255, 255, 255, 0.65); margin-top: 8px; text-align: center; }
.portal-flow-placeholder { color: rgba(255, 255, 255, 0.75); font-size: 14px; text-align: center; padding: 30px 10px; }

.portal-flow-canvas { position: relative; width: 100%; height: 280px; }
.portal-flow-canvas svg.portal-flow-lines { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; }
.portal-flow-canvas svg.portal-flow-lines path {
    fill: none;
    stroke: var(--portal-primary);
    stroke-width: 2.5;
    stroke-dasharray: 6 6;
    animation: portal-flow-dash 1.1s linear infinite;
}
/* Pausiert bei ~0 Fluss statt wie bei Fronius/Loxone endlos weiterzulaufen -
   bewusste Verbesserung, macht den Nullfluss auf einen Blick erkennbar. */
.portal-flow-canvas svg.portal-flow-lines path.portal-flow-idle { animation: none; opacity: 0.18; }
@keyframes portal-flow-dash {
    to { stroke-dashoffset: -24; }
}
@media (prefers-reduced-motion: reduce) {
    .portal-flow-canvas svg.portal-flow-lines path { animation: none; }
}

.portal-flow-node {
    position: absolute;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    width: 92px;
    text-align: center;
    z-index: 2;
}
.portal-flow-node.portal-flow-center { width: 116px; }
.portal-flow-node .portal-flow-icon { border-radius: 50%; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4); }
.portal-flow-node .portal-flow-label { font-size: 11px; font-weight: 500; color: rgba(255, 255, 255, 0.8); }
.portal-flow-node .portal-flow-value { font-size: 15px; font-weight: 600; color: white; }
.portal-flow-node.portal-flow-center .portal-flow-value { font-size: 18px; }