/* Farbvariablen für den automatischen Wechsel */
:root {
    --bg-main: #f4f6f9;
    --bg-panel: #ffffff;
    --bg-input: #ffffff;
    --bg-th: #f8fafc;
    --text-main: #333333;
    --text-heading: #1e293b;
    --border: #cbd5e1;
    --border-table: #e2e8f0;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --list-hover: #eff6ff;
    --list-border-hover: #3b82f6;
    --canvas-bg: #ffffff;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-main: #0f172a;       /* Passt exakt zur JavaScript-Abfrage für das Canvas */
        --bg-panel: #1e293b;
        --bg-input: #0f172a;
        --bg-th: #1e293b;
        --text-main: #cbd5e1;
        --text-heading: #f1f5f9;
        --border: #475569;
        --border-table: #334155;
        --accent: #3b82f6;
        --accent-hover: #60a5fa;
        --list-hover: #1e293b;
        --list-border-hover: #60a5fa;
        --canvas-bg: #1e293b;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
    margin: 20px;
    transition: background 0.2s, color 0.2s;
}

h1, h2 {
    color: var(--text-heading);
}

.container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.panel {
    background: var(--bg-panel);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    border: 1px solid var(--border-table);
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    font-size: 14px;
}

input[type="text"], input[type="time"], select {
    background: var(--bg-input);
    color: var(--text-main);
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 14px;
}

input[type="time"]::-webkit-calendar-picker-indicator {
    background: none;
}

input[type="number"] {
    background: var(--bg-input);
    color: var(--text-main);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 4px;
}

button {
    background: var(--accent);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s;
}

button:hover {
    background: var(--accent-hover);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

th, td {
    text-align: left;
    padding: 2px 5px;
    border-bottom: 1px solid var(--border-table);
}

th {
    background: var(--bg-th);
    color: var(--text-main);
    font-size: 13px;
}

.hidden {
    display: none;
}

canvas {
    background: var(--canvas-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    width: 100%;
    height: auto;
}

/* Layout für Zuglisten und Seitenleisten */
.editor-layout {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.train-list-box {
    flex: 0 0 250px;
    background: var(--bg-th);
    border: 1px solid var(--border-table);
    border-radius: 6px;
    padding: 15px;
}

.train-list {
    list-style: none;
    padding: 0;
    margin: 10px 0 0 0;
}

.train-list li {
    padding: 8px 12px;
    background: var(--bg-panel);
    border: 1px solid var(--border-table);
    border-radius: 4px;
    margin-bottom: 6px;
    cursor: pointer;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
}

.train-list li:hover {
    background: var(--list-hover);
    border-color: var(--list-border-hover);
}

.train-list .delete-btn {
    color: #ef4444;
    cursor: pointer;
    font-size: 16px;
    font-weight: normal;
    padding: 0 4px;
}

.train-list .delete-btn:hover {
    font-weight: bold;
}

.invalid-schedule {
    background-color: rgba(220, 38, 38, 0.2) !important;
}