/* ---------------------------------------------------------
   Modernes Dashboard-Layout für Schritte-Challenge
   Fokus: Icons, Cards, zentrierte Inhalte, große KPIs
--------------------------------------------------------- */

:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1e40af;
  --color-bg: #f3f4f6;
  --color-surface: #ffffff;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-danger: #dc2626;

  --font-family-base: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --radius: 12px;
  --shadow: 0 4px 12px rgba(0,0,0,0.08);

  --fs-h1: 2rem;
  --fs-h2: 1.4rem;
  --fs-body: 1rem;
  --fs-kpi: 2.4rem;
  --fs-kpi-label: 1rem;

  --space-xs: 6px;
  --space-sm: 12px;
  --space-md: 20px;
  --space-lg: 32px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-family-base);
  background: var(--color-bg);
  color: #111827;
}

/* ---------------------------------------------------------
   Header + Navigation
--------------------------------------------------------- */

.header {
  background: var(--color-surface);
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-title {
  font-size: var(--fs-h2);
  margin: 0;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav a {
  padding: 8px 14px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--color-primary-dark);
  font-weight: 500;
  text-decoration: none;
}

.nav a:hover {
  background: rgba(37,99,235,0.1);
}

.nav a.active {
  background: var(--color-primary);
  color: #fff;
}

/* ---------------------------------------------------------
   Container & Cards
--------------------------------------------------------- */

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
}

.card {
  background: var(--color-surface);
  padding: var(--space-lg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: var(--space-lg);
  animation: fadeIn 0.3s ease;
}

.bild {
    max-width: 800px;
  
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------------------------------------------------------
   KPI Cards (groß, plakativ, mit Icons)
--------------------------------------------------------- */

.kpi-box {
  text-align: center;
  padding: var(--space-lg);
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: var(--shadow);
  margin-bottom: var(--space-lg);
}

.kpi-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.kpi-number {
  font-size: var(--fs-kpi);
  font-weight: 700;
  color: var(--color-primary-dark);
}

.kpi-label {
  font-size: var(--fs-kpi-label);
  color: var(--color-muted);
}

/* ---------------------------------------------------------
   Forms
--------------------------------------------------------- */

label {
  display: block;
  margin-bottom: 6px;
  color: var(--color-muted);
  font-size: 0.95rem;
}

input, select {
  width: 100%;
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  margin-bottom: var(--space-md);
  font-size: var(--fs-body);
}

input:focus, select:focus {
  outline: 3px solid rgba(37,99,235,0.25);
  border-color: var(--color-primary);
}

/* ---------------------------------------------------------
   Buttons
--------------------------------------------------------- */

.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: var(--fs-body);
  text-decoration: none;
}

.btn:hover {
  background: var(--color-primary-dark);
}

.btn.secondary {
  background: #e5e7eb;
  color: #111827;
}

.btn.danger {
  background: var(--color-danger);
}

/* ---------------------------------------------------------
   Tables
--------------------------------------------------------- */

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.table th, .table td {
  padding: 12px;
  border-bottom: 1px solid var(--color-border);
}

.table thead th {
  color: var(--color-muted);
  font-weight: 600;
}

.row-me {
  background: #fff8e1;
}

/* ---------------------------------------------------------
   Messages
--------------------------------------------------------- */

.errors {
  background: #fee2e2;
  color: #7f1d1d;
  padding: var(--space-sm);
  border-radius: var(--radius);
  margin-bottom: var(--space-md);
}

.success {
  background: #dcfce7;
  color: #065f46;
  padding: var(--space-sm);
  border-radius: var(--radius);
  margin-bottom: var(--space-md);
}

/* ---------------------------------------------------------
   Responsive
--------------------------------------------------------- */

@media (max-width: 600px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .kpi-number {
    font-size: 2rem;
  }

  .kpi-icon {
    font-size: 2.4rem;
  }
}