:root {
  --bg:        #0F1B1A;
  --surface:   #16302C;
  --surface-2: #1D3B35;
  --border:    #274740;
  --text:      #EAF2EF;
  --text-muted:#7FA79A;

  --amber: #F0A93E;
  --teal:  #2FBF9F;
  --coral: #E8664F;
  --slate: #8FA8C4;
}

* { box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  margin: 0;
}

/* ---------- Login ---------- */

.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 15% 15%, rgba(240,169,62,0.10), transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(47,191,159,0.10), transparent 45%),
    var(--bg);
}

.login-wrap { width: 100%; max-width: 420px; padding: 1.5rem; }

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.25rem 2rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}

.login-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text);
}
.login-brand i { color: var(--amber); }

.login-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0.4rem 0 1.6rem 0;
}

.login-card .form-label {
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.login-card .form-control {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.65rem 0.85rem;
}
.login-card .form-control:focus {
  background: var(--bg);
  color: var(--text);
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(240,169,62,0.2);
}

.btn-solar {
  background: linear-gradient(135deg, var(--amber), #d98f2a);
  border: none;
  color: #1a1204;
  font-weight: 600;
  padding: 0.7rem 1rem;
  border-radius: 8px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-solar:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(240,169,62,0.3);
  color: #1a1204;
}

.alert-error {
  background: rgba(232,102,79,0.12);
  border: 1px solid rgba(232,102,79,0.4);
  color: #ffb3a1;
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.login-card .form-check-input {
  background-color: var(--bg);
  border: 1px solid var(--border);
}
.login-card .form-check-input:checked {
  background-color: var(--amber);
  border-color: var(--amber);
}
.login-card .form-check-label {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.login-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 1.4rem 0 0 0;
  display: flex;
  gap: 0.4rem;
  align-items: flex-start;
}

/* ---------- Dashboard ---------- */

.dash-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.dash-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.dash-brand i { color: var(--amber); }

.dash-nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.dash-user { color: var(--text); font-weight: 500; }

.live-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 0 rgba(47,191,159,0.5);
  animation: pulse 2s infinite;
}
.live-dot-error { background: var(--coral); animation: none; }

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(47,191,159,0.5); }
  70%  { box-shadow: 0 0 0 8px rgba(47,191,159,0); }
  100% { box-shadow: 0 0 0 0 rgba(47,191,159,0); }
}

.btn-outline-logout {
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: transparent;
}
.btn-outline-logout:hover {
  border-color: var(--coral);
  color: var(--coral);
}

.dash-main { padding: 1.75rem; max-width: 1200px; margin: 0 auto; }

/* Energiefluss-Signatur */
.flow-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto;
  grid-template-rows: auto auto;
  align-items: center;
  margin-bottom: 1.5rem;
  position: relative;
}

.flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  min-width: 88px;
  grid-row: 1;
}
.flow-node i { font-size: 1.6rem; color: var(--text-muted); }
#node-pv i { color: var(--amber); }
#node-battery i { color: var(--teal); }
#node-grid i { color: var(--slate); }
#node-ev i { color: #C765AE; }

.flow-node-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.flow-node-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.95rem;
}

.flow-line {
  height: 2px;
  background: var(--border);
  position: relative;
  overflow: hidden;
  grid-row: 1;
}
.flow-line.vertical {
  grid-row: 2;
  grid-column: 1;
  width: 2px;
  height: 40px;
  margin: 0.5rem auto 0 44px;
}

.flow-dash {
  position: absolute;
  top: -1px;
  left: -30%;
  width: 30%;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
  opacity: 0;
}
.flow-line.flow-active .flow-dash {
  opacity: 1;
  animation: flow-move 1.6s linear infinite;
}
@keyframes flow-move {
  from { left: -30%; }
  to   { left: 100%; }
}

#node-battery { grid-row: 2; grid-column: 1; justify-self: center; margin-top: 0.5rem; }

/* Energiefluss-Tab: erweiterte Version der Flow-Karte (Sonne/Haus/Netz + Batterie/Ladestation) */
.energiefluss-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem 1.5rem 2rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.energiefluss-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}
.energiefluss-row:not(.energiefluss-row-bottom) + .energiefluss-row-bottom {
  margin-top: 0.5rem;
}
.energiefluss-row + .energiefluss-row {
  margin-top: 2rem;
}

.energiefluss-row .flow-line {
  width: 70px;
}

.energiefluss-row-bottom {
  height: 36px;
  gap: 5.5rem;
  margin-top: 0.5rem !important;
}
.energiefluss-row-bottom .flow-line.vertical {
  height: 36px;
  width: 2px;
  margin: 0;
}

.flow-node-big i { font-size: 2.1rem; }
.flow-node-big .flow-node-value { font-size: 1.15rem; }

.flow-node-sub {
  font-size: 0.7rem;
  color: var(--teal);
  font-weight: 600;
}

#ef-node-pv i { color: var(--amber); }
#ef-node-grid i { color: var(--slate); }
#ef-node-batt i { color: var(--teal); }
#ef-node-ev i { color: #C765AE; }

@media (max-width: 640px) {
  .energiefluss-row { gap: 0.75rem; }
  .energiefluss-row .flow-line { width: 30px; }
  .energiefluss-row-bottom { gap: 2.5rem; }
}

/* Verweis-Karte auf das echte MVV-Webportal */
.mvv-embed-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 3rem 2rem;
  max-width: 560px;
  margin: 2rem auto;
  text-align: center;
}
.mvv-embed-icon {
  font-size: 2.2rem;
  color: var(--amber);
  margin-bottom: 1rem;
}
.mvv-embed-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  margin-bottom: 0.9rem;
}
.mvv-embed-card p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
  margin-bottom: 1rem;
}
.mvv-embed-note {
  font-size: 0.8rem !important;
}
.mvv-embed-card .btn-solar {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  margin-top: 0.5rem;
}

.mvv-embed-card-iframe {
  max-width: 100%;
  padding: 1.25rem;
  text-align: left;
}
.mvv-embed-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.9rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.mvv-embed-header .btn-ghost-sm {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.mvv-live-scale-wrap {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  margin: 0 auto;
}
.mvv-live-iframe {
  width: 1400px;
  height: 900px;
  border: none;
  display: block;
  transform-origin: top left;
}
.mvv-embed-card-iframe .mvv-embed-note {
  margin: 0.75rem 0 0 0;
  text-align: center;
}

/* Exceldatei-Tab */
.exceltable-card { padding: 1.25rem 1.5rem; }

.exceltable-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.6rem;
}
.exceltable-header span {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.exceltable-download {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}

.exceltable-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.4;
}

.exceltable-scroll {
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.excel-table {
  border-collapse: collapse;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  white-space: nowrap;
}
.excel-table th, .excel-table td {
  border: 1px solid var(--border);
  padding: 0.35rem 0.7rem;
  text-align: right;
}
.excel-table th {
  background: var(--surface-2);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  text-align: center;
  position: sticky;
  top: 0;
}
.excel-table td:nth-child(odd) {
  text-align: left;
  color: var(--text-muted);
}
.excel-table-total td {
  background: var(--surface-2);
  font-weight: 700;
  color: var(--amber);
}
.excel-table-overall {
  background: rgba(240, 169, 62, 0.18) !important;
  color: var(--amber) !important;
}

/* Zeitraum-Toolbar */
.range-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.6rem;
}

.range-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
}
.range-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.4rem 0.9rem;
  border-radius: 7px;
}
.range-btn.active {
  background: var(--surface-2);
  color: var(--amber);
}
.range-btn:hover:not(.active) { color: var(--text); }

.range-custom {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.35rem 0.7rem;
  color: var(--text-muted);
}
.range-custom i { color: var(--text-muted); }

.range-date {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 0.85rem;
  color-scheme: dark;
}
.range-date:focus { outline: none; }
.range-sep { color: var(--text-muted); }

.btn-solar-sm {
  background: linear-gradient(135deg, var(--amber), #d98f2a);
  border: none;
  color: #1a1204;
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.35rem 0.8rem;
  border-radius: 7px;
}

.btn-ghost-sm {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
  padding: 0.33rem 0.75rem;
  border-radius: 7px;
  white-space: nowrap;
}
.btn-ghost-sm:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.range-current-label {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin: 0 0 1rem 0.1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.range-loading {
  color: var(--text-muted);
  padding: 2rem 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}

/* View-Tabs */
.view-tabs {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  padding: 0;
  margin: 0 0 0.9rem 0;
  border-bottom: 1px solid var(--border);
}
.view-tab {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 0.1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.view-tab.active {
  color: var(--text);
  border-bottom-color: var(--amber);
}
.view-tab:hover:not(.active) { color: var(--text); }

.daily-legend {
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
  font-size: 0.72rem;
}

.daily-chart-wrap {
  height: 230px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.9rem;
  margin: 1.1rem 0;
}

.summary-donut-card, .summary-cycles-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.summary-donut-title {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
  text-align: center;
}

.summary-donut-wrap { width: 100px; height: 100px; }

.summary-cycles-card { justify-content: center; }
.summary-cycles-value {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.9rem;
  color: var(--amber);
}

/* Alle-Werte-Ansicht */
.all-values-toolbar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 1.25rem;
}

.value-group-section { margin-bottom: 1.75rem; }

.value-group-heading {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding-bottom: 0.5rem;
  margin-bottom: 0.9rem;
  border-bottom: 1px solid var(--border);
}

/* Visualisierung */
.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  transition: opacity 0.15s ease;
}
.chart-loading-state { opacity: 0.4; }

.chart-card-compact { padding: 1.1rem 1.2rem; }

.chart-legend-note {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 1.2rem;
}
.legend-dot {
  width: 10px; height: 10px; border-radius: 3px;
  display: inline-block;
  margin-left: 0.9rem;
}
.legend-dot:first-child { margin-left: 0; }
.legend-amber { background: var(--amber); }
.legend-teal { background: var(--teal); }

.chart-scroll {
  overflow: hidden;
  padding-bottom: 0.5rem;
}
.chart-scroll-inner {
  height: 360px;
  width: 100%;
}

/* Kacheln */
.metric-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 1.2rem;
  height: 100%;
}
.metric-card.accent-amber { border-left-color: var(--amber); }
.metric-card.accent-teal  { border-left-color: var(--teal); }
.metric-card.accent-coral { border-left-color: var(--coral); }
.metric-card.accent-slate { border-left-color: var(--slate); }

.metric-icon { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 0.5rem; }
.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.3rem;
}
.metric-value {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 1.3rem;
}

.metric-avg {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
  padding-top: 0.3rem;
  border-top: 1px dashed var(--border);
}

.dash-footnote {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-align: right;
  margin-top: 1rem;
}

@media (max-width: 768px) {
  .flow-card { grid-template-columns: auto 1fr auto; }
  #node-grid { display: none; }
  .flow-line#line-house-grid { display: none; }
}

/* ---------- Mobile-Optimierung (Kopfzeile, Zeitraum-Leiste, Tab-Leiste) ---------- */
@media (max-width: 700px) {
  .dash-nav {
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.85rem 1rem;
  }
  .dash-brand { font-size: 1.05rem; }
  .dash-nav-right {
    gap: 0.5rem;
    font-size: 0.78rem;
  }
  .dash-user { display: none; } /* Platz sparen - Name ist auf kleinem Screen nicht kritisch */
  .btn-outline-logout { padding: 0.3rem 0.6rem; font-size: 0.78rem; }

  .dash-main { padding: 1rem; }

  .range-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    margin-bottom: 0.9rem;
  }
  .range-toggle {
    display: flex;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: 2px;
    border-radius: 9px;
  }
  .range-toggle::-webkit-scrollbar { display: none; }
  .range-btn {
    flex-shrink: 0;
    font-size: 0.78rem;
    padding: 0.4rem 0.7rem;
  }

  .range-custom {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    justify-content: flex-start;
    font-size: 0.78rem;
    padding: 0.4rem 0.6rem;
    gap: 0.4rem;
  }
  .range-custom::-webkit-scrollbar { display: none; }
  .range-custom > * { flex-shrink: 0; }
  .range-date { font-size: 0.78rem; }
  .range-custom .btn-solar-sm,
  .range-custom .btn-ghost-sm {
    font-size: 0.76rem;
    padding: 0.32rem 0.6rem;
  }

  .view-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 1rem;
    margin-bottom: 1.1rem;
  }
  .view-tabs::-webkit-scrollbar { display: none; }
  .view-tab {
    white-space: nowrap;
    flex-shrink: 0;
    font-size: 0.82rem;
  }

  .range-current-label { margin-left: 0; }
}