/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg-primary: #0f1117;
    --bg-card: #1a1d27;
    --bg-card-hover: #1f2233;
    --border-card: #2a2d37;
    --accent: #3b82f6;
    --accent-dim: rgba(59, 130, 246, 0.15);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --success: #22c55e;
    --error: #ef4444;
    --warning: #eab308;
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 24px;
}

/* === Header === */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-card);
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.header-subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.refresh-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: background 0.2s;
}

.refresh-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

/* === KPI Cards === */
.kpi-row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 12px;
    padding: 20px;
}

.kpi-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 2rem;
    font-weight: 700;
}

.kpi-value.accent { color: var(--accent); }
.kpi-value.success { color: var(--success); }
.kpi-value.error { color: var(--error); }
.kpi-value.warning { color: var(--warning); }

/* === Grid Layout === */
.grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

/* === Widget Cards === */
.widget {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 12px;
    padding: 20px;
}

.widget-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* === Kanban === */
.kanban {
    display: flex;
    gap: 12px;
    overflow-x: auto;
}

.kanban-column {
    flex: 1;
    min-width: 160px;
}

.kanban-column-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--accent);
}

.kanban-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-card);
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 8px;
    font-size: 0.85rem;
}

.kanban-card .firma {
    font-weight: 500;
    margin-bottom: 2px;
}

.kanban-card .branche {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* === Data Table === */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-card);
}

.data-table td {
    padding: 10px 12px;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border-card);
}

.data-table tr:last-child td {
    border-bottom: none;
}

/* === Status Badges === */
.status-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-badge.offen { background: var(--accent-dim); color: var(--accent); }
.status-badge.abgeschlossen { background: rgba(34,197,94,0.15); color: var(--success); }
.status-badge.kein-interesse { background: rgba(148,163,184,0.15); color: var(--text-secondary); }
.status-badge.wiedervorlage { background: rgba(234,179,8,0.15); color: var(--warning); }
.status-badge.werbeverbot { background: rgba(239,68,68,0.15); color: var(--error); }
.status-badge.bounce { background: rgba(239,68,68,0.15); color: var(--error); }
.status-badge.fehler { background: rgba(239,68,68,0.15); color: var(--error); }

/* === Kennzahlen Row === */
.stats-row {
    display: flex;
    gap: 16px;
}

.stat-item {
    flex: 1;
    text-align: center;
    padding: 12px;
    background: var(--bg-primary);
    border-radius: 8px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* === System Status === */
.status-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-card);
    font-size: 0.85rem;
}

.status-item:last-child {
    border-bottom: none;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}

.status-dot.active { background: var(--success); }
.status-dot.inactive { background: var(--error); }

/* === Chart Container === */
.chart-container {
    position: relative;
    height: 220px;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .kpi-row { grid-template-columns: repeat(3, 1fr); }
    .grid-2col { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .kpi-row { grid-template-columns: repeat(2, 1fr); }
    body { padding: 12px; }
}