/* ════════════════════════════════════════════════════════
   Kabel Querschnitt Rechner — Styles
   Akzentfarbe: #5C6BC0 (Indigo)
════════════════════════════════════════════════════════ */

:root {
  --kb-accent:   #5C6BC0;
  --kb-accent-d: #3949AB;
  --kb-accent-l: #E8EAF6;
  --kb-ok:       #2E7D32;
  --kb-warn:     #E65100;
  --kb-danger:   #C62828;
  --kb-text:     #1E293B;
  --kb-muted:    #64748B;
  --kb-border:   #E2E8F0;
  --kb-bg:       #F8FAFC;
  --kb-card-bg:  #FFFFFF;
  --kb-radius:   10px;
}

/* ── Layout ──────────────────────────────────────────── */
.kabel-page {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

/* ── Header ──────────────────────────────────────────── */
.kabel-header {
  display: flex;
  align-items: center;
  gap: 16px;
}
.kabel-header-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--kb-accent-l);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--kb-accent);
  flex-shrink: 0;
}
.kabel-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--kb-text);
  margin: 0;
}
.kabel-subtitle {
  font-size: 13px;
  color: var(--kb-muted);
  margin: 2px 0 0;
}

/* ── Body ────────────────────────────────────────────── */
.kabel-body {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 24px;
  align-items: start;
}
@media (max-width: 900px) {
  .kabel-body { grid-template-columns: 1fr; }
}

/* ── Karte ───────────────────────────────────────────── */
.kb-card {
  background: var(--kb-card-bg);
  border: 1px solid var(--kb-border);
  border-radius: var(--kb-radius);
  padding: 18px 20px;
  margin-bottom: 16px;
}
.kb-card:last-child { margin-bottom: 0; }
.kb-card-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--kb-muted);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 7px;
}
.kb-chart-card { overflow: hidden; }

/* ── Zeile ───────────────────────────────────────────── */
.kb-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.kb-row.mt-8 { margin-top: 14px; }

/* Gestapelte Zeile: Label oben, Eingabe darunter (für Select-Felder) */
.kb-row-stack {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 5px;
  margin-bottom: 10px;
}
.kb-row-stack .kb-label {
  flex: none;
  white-space: normal;
}
.kb-row-stack .kb-select {
  width: 100%;
}

.kb-label {
  font-size: 13px;
  color: var(--kb-text);
  flex: 0 0 160px;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Input ───────────────────────────────────────────── */
.kb-input-unit {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--kb-border);
  border-radius: 7px;
  overflow: hidden;
  flex: 1;
  transition: border-color .15s;
}
.kb-input-unit:focus-within { border-color: var(--kb-accent); }
.kb-input {
  border: none;
  outline: none;
  padding: 7px 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--kb-text);
  background: transparent;
  width: 100%;
  min-width: 0;
}
.kb-unit {
  background: var(--kb-bg);
  border-left: 1.5px solid var(--kb-border);
  padding: 7px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--kb-muted);
  white-space: nowrap;
}

/* ── Select ──────────────────────────────────────────── */
.kb-select {
  flex: 1;
  border: 1.5px solid var(--kb-border);
  border-radius: 7px;
  padding: 7px 10px;
  font-size: 13px;
  color: var(--kb-text);
  background: white;
  outline: none;
  cursor: pointer;
  transition: border-color .15s;
}
.kb-select:focus { border-color: var(--kb-accent); }

/* ── Toggle-Gruppe ───────────────────────────────────── */
.kb-toggle-group {
  display: flex;
  gap: 6px;
  flex: 1;
  flex-wrap: wrap;
}
.kb-toggle {
  flex: 1;
  padding: 7px 10px;
  border: 1.5px solid var(--kb-border);
  border-radius: 7px;
  background: white;
  font-size: 12px;
  font-weight: 500;
  color: var(--kb-muted);
  cursor: pointer;
  transition: all .15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  white-space: nowrap;
}
.kb-toggle:hover { border-color: var(--kb-accent); color: var(--kb-accent); }
.kb-toggle.active {
  border-color: var(--kb-accent);
  background: var(--kb-accent-l);
  color: var(--kb-accent-d);
  font-weight: 600;
}

/* ── Slider ──────────────────────────────────────────── */
.kb-slider {
  width: 100%;
  margin: 4px 0 0;
  -webkit-appearance: none;
  appearance: none;
  height: 5px;
  border-radius: 3px;
  background: var(--kb-border);
  outline: none;
  cursor: pointer;
}
.kb-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--kb-accent);
  border: 2px solid white;
  box-shadow: 0 1px 4px rgba(0,0,0,.2);
  cursor: pointer;
}
.kb-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--kb-accent);
  border: 2px solid white;
  cursor: pointer;
}
.kb-slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--kb-muted);
  margin-top: 3px;
}
.kb-hint-inline {
  font-size: 11px;
  color: var(--kb-accent);
  cursor: help;
}
.kb-hint {
  font-size: 12px;
  color: var(--kb-accent);
  margin-top: 4px;
  min-height: 16px;
}

/* ── Hero ────────────────────────────────────────────── */
.kb-hero-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
@media (max-width: 600px) {
  .kb-hero-grid { grid-template-columns: 1fr 1fr; }
}
.kb-hero {
  background: var(--kb-card-bg);
  border: 1px solid var(--kb-border);
  border-radius: var(--kb-radius);
  padding: 16px;
  text-align: center;
}
.kb-hero-accent {
  border-color: var(--kb-accent);
  background: var(--kb-accent-l);
}
.kb-hero-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--kb-muted);
  margin-bottom: 4px;
}
.kb-hero-accent .kb-hero-label { color: var(--kb-accent-d); }
.kb-hero-val {
  font-size: 30px;
  font-weight: 700;
  color: var(--kb-text);
  line-height: 1.1;
}
.kb-hero-accent .kb-hero-val { color: var(--kb-accent-d); }
.kb-hero-unit {
  font-size: 11px;
  color: var(--kb-muted);
  margin-top: 2px;
}

/* ── Auslastungsbalken ───────────────────────────────── */
.kb-load-bar-wrap { padding: 4px 0 12px; }
.kb-load-bar-bg {
  position: relative;
  height: 14px;
  border-radius: 7px;
  background: var(--kb-bg);
  border: 1px solid var(--kb-border);
  overflow: hidden;
  margin-bottom: 6px;
}
.kb-load-bar-fill {
  height: 100%;
  border-radius: 7px;
  background: var(--kb-ok);
  width: 0%;
  transition: width .3s, background .3s;
}
.kb-load-bar-fill.warn { background: #F9A825; }
.kb-load-bar-fill.danger { background: var(--kb-danger); }
.kb-load-bar-limit {
  position: absolute;
  top: 0; bottom: 0;
  width: 2px;
  background: rgba(0,0,0,.25);
  display: none;
}
.kb-load-bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--kb-muted);
}
.kb-load-pct {
  font-weight: 700;
  color: var(--kb-text);
}

/* ── Warnung ─────────────────────────────────────────── */
.kb-warning {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #FFF3E0;
  border: 1px solid #FFCC02;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  color: var(--kb-warn);
  margin-top: 10px;
}
.kb-warning.danger {
  background: #FFEBEE;
  border-color: #EF9A9A;
  color: var(--kb-danger);
}

/* ── Tabelle ─────────────────────────────────────────── */
.kb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.kb-table td {
  padding: 7px 8px;
  border-bottom: 1px solid var(--kb-border);
  color: var(--kb-text);
}
.kb-table td:first-child {
  color: var(--kb-muted);
  width: 55%;
}
.kb-table td:last-child {
  font-weight: 600;
  text-align: right;
}
.kb-table tr:last-child td { border-bottom: none; }
.kb-tr-sep td { border-top: 2px solid var(--kb-border) !important; }

/* ── Divider ─────────────────────────────────────────── */
.kb-divider {
  border: none;
  border-top: 1px solid var(--kb-border);
  margin: 14px 0;
}

/* ── Querschnitt-Override-Hinweis ────────────────────── */
.kb-hint-qs-warn {
  color: var(--kb-warn);
}
.kb-hint-qs-ok {
  color: var(--kb-ok);
}

/* ── Canvas ──────────────────────────────────────────── */
#kabelCanvas {
  display: block;
  width: 100%;
  border-radius: 6px;
}