:root {
  --primary: #f59e0b;
  --primary-dark: #d97706;
  --secondary: #0ea5e9;
  --bg-main: #0f172a;
  --bg-card: #1e293b;
  --bg-input: #334155;
  --text: #f1f5f9;
  --text-dim: #94a3b8;
  --border: #475569;
  --success: #10b981;
  --grid: #1e3a5f;
}

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

body {
  /* DSGVO: keine Google Fonts, nur Systemfonts */
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", Arial, sans-serif;
  background: linear-gradient(135deg, var(--bg-main) 0%, #1a2640 100%);
  color: var(--text);
  min-height: 100vh;
  padding: 2rem 1rem;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--border);
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.subtitle {
  color: var(--text-dim);
  font-size: 1rem;
  font-weight: 300;
}

.main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.config-and-viz {
  display: grid;
  grid-template-columns: 350px 1fr;
  gap: 2rem;
}

.card {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-dim);
  font-weight: 400;
}

input[type="number"],
input[type="date"],
input[type="time"],
select {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;

  /* Zahlen/Values im UI: monospace – DSGVO-safe */
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  transition: all 0.2s;
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.slider-container {
  margin-top: 0.5rem;
}

input[type="range"] {
  width: 100%;
  height: 8px;
  background: var(--bg-input);
  border-radius: 4px;
  outline: none;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: all 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  background: var(--primary-dark);
  transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--primary);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.current-value {
  color: var(--primary);
  font-weight: 500;
}

input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--primary);
}

button {
  width: 100%;
  padding: 1rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 6px rgba(245, 158, 11, 0.3);
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(245, 158, 11, 0.4);
}

button:active {
  transform: translateY(0);
}

.visualization {
  background: var(--bg-card);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  min-height: 300px;
}

.sun-display {
  text-align: center;
  padding: 2rem;
  background: linear-gradient(to bottom, #1e3a5f 0%, var(--bg-card) 100%);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
}

#panelCanvas {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
  margin: 0 auto;
}

.current-power {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);

  /* Monospace für Zahlenanzeige */
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  margin-bottom: 0.5rem;
}

.power-label {
  font-size: 1rem;
  color: var(--text-dim);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-input);
  padding: 1.25rem;
  border-radius: 12px;
  border-left: 4px solid var(--primary);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

.stat-unit {
  font-size: 1rem;
  color: var(--text-dim);
  font-weight: 400;
}

.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.chart-container {
  background: var(--bg-input);
  padding: 1.5rem;
  border-radius: 12px;
  height: 300px;
}

canvas {
  max-height: 250px;
}

.help-text {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-style: italic;
  margin-top: 0.5rem;
}

@media (max-width: 1024px) {
  .config-and-viz {
    grid-template-columns: 1fr;
  }

  .charts-grid {
    grid-template-columns: 1fr;
  }
}