/* SysIntegrate-Design: Orange (#ff6600) und Grau (#666/#999) aus dem Logo.
   Fuer Buttons mit weisser Schrift ein etwas dunkleres Orange (Kontrast). */
:root {
  --bg: #f5f5f4;
  --surface: #ffffff;
  --surface-alt: #f0efee;
  --text: #2b2b2b;
  --text-muted: #666666;
  --border: #e3e1df;
  --accent: #e65c00;
  --accent-strong: #c45000;
  --accent-soft: rgba(255, 102, 0, 0.12);
  --accent-text: #ffffff;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(30, 20, 10, 0.06), 0 4px 16px rgba(30, 20, 10, 0.06);

  /* Kopfleiste hell wie das Logo (graue Wortmarke auf Weiss),
     orangene Linie als Abschluss. */
  --nav-bg: #ffffff;
  --nav-bg-elevated: #f5f5f4;
  --nav-text: #4a4a4a;
  --nav-text-muted: #777777;
  --nav-border: #e3e1df;
  --brand-name: #666666;

  color-scheme: light;
}

html[data-theme='dark'] {
  --bg: #141414;
  --surface: #1d1d1d;
  --surface-alt: #262626;
  --text: #ececec;
  --text-muted: #a3a3a3;
  --border: #333333;
  --accent: #ff7a1a;
  --accent-strong: #ff9447;
  --accent-soft: rgba(255, 122, 26, 0.16);
  --accent-text: #1a0d00;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  --nav-bg: #1a1a1a;
  --nav-bg-elevated: #262626;
  --nav-text: #ececec;
  --nav-text-muted: #a3a3a3;
  --nav-border: #2e2e2e;
  --brand-name: #d4d4d4;
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme='light']) {
    --bg: #141414;
    --surface: #1d1d1d;
    --surface-alt: #262626;
    --text: #ececec;
    --text-muted: #a3a3a3;
    --border: #333333;
    --accent: #ff7a1a;
    --accent-strong: #ff9447;
    --accent-soft: rgba(255, 122, 26, 0.16);
    --accent-text: #1a0d00;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
    --nav-bg: #1a1a1a;
    --nav-bg-elevated: #262626;
    --nav-text: #ececec;
    --nav-text-muted: #a3a3a3;
    --nav-border: #2e2e2e;
    --brand-name: #d4d4d4;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.15s ease, color 0.15s ease;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a { color: var(--accent); }

/* --- Kopfleiste: Logo links, Links daneben, Login/User rechts --- */
.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 62px;
  padding: 0 1.5rem;
  background: var(--nav-bg);
  border-bottom: 3px solid #ff6600;
  position: sticky;
  top: 0;
  z-index: 20;
}

.topnav-left {
  display: flex;
  align-items: center;
  gap: 2rem;
  min-width: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  white-space: nowrap;
}

.brand-mark {
  width: 20px;
  height: 40px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  color: var(--brand-name);
  font-family: 'Roboto Slab', 'Rockwell', 'Georgia', serif;
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.01em;
}

.brand-app {
  color: #ff6600;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem 1.3rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--nav-text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--nav-text);
  border-bottom-color: #ff6600;
}

.topnav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--nav-bg-elevated);
  border: 1px solid var(--nav-border);
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  color: var(--nav-text);
  cursor: pointer;
  font-size: 0.85rem;
}

.theme-toggle:hover { border-color: var(--accent); }

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--nav-text-muted);
  font-size: 0.85rem;
}

.nav-user strong { color: var(--nav-text); font-weight: 600; }

.nav-login-btn,
.nav-logout-link {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
}

.nav-login-btn {
  background: var(--accent);
  color: var(--accent-text);
}

.nav-login-btn:hover { background: var(--accent-strong); }

.nav-logout-link {
  color: var(--nav-text-muted);
  border: 1px solid var(--nav-border);
}

.nav-logout-link:hover { color: var(--nav-text); border-color: var(--accent); }

.page-content {
  flex: 1;
}

.site-footer {
  text-align: center;
  padding: 1.25rem 1rem 1.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.site-footer strong { color: var(--brand-name); }

.card {
  max-width: 420px;
  margin: 3rem auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 4px solid #ff6600;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
}

.card h1 {
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
}

.card p.subtitle {
  color: var(--text-muted);
  margin: 0 0 1.5rem;
  font-size: 0.9rem;
}

.form-error {
  background: rgba(220, 60, 60, 0.1);
  color: #c23b3b;
  border-radius: 8px;
  padding: 0.6rem 0.85rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
}

.field {
  margin-bottom: 1rem;
}

.field label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
  color: var(--text-muted);
}

.field input,
.field select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 0.95rem;
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

input[type='checkbox'] { accent-color: var(--accent); }

button.primary {
  width: 100%;
  padding: 0.7rem;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

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

/* --- Admin-Bereich (Inhalt unter der Topnav) --- */
.admin-content {
  padding: 2rem 2.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.admin-content h1 {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
}

.admin-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.primary-link {
  background: var(--accent);
  color: var(--accent-text);
  text-decoration: none;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

.primary-link:hover { background: var(--accent-strong); }

.admin-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.admin-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid #ff6600;
  border-radius: var(--radius);
  padding: 1.25rem;
  text-decoration: none;
  color: var(--text);
  box-shadow: var(--shadow);
}

.admin-card:hover { border-color: var(--accent); border-left-color: #ff6600; }

.admin-card h2 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.admin-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.admin-table th, .admin-table td {
  text-align: left;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.admin-table th {
  color: var(--text-muted);
  font-weight: 600;
  background: var(--surface-alt);
}

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

.badge {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-ok { background: var(--accent-soft); color: var(--accent-strong); }
.badge-off { background: var(--surface-alt); color: var(--text-muted); }

.empty-state { color: var(--text-muted); font-size: 0.9rem; }

.admin-form {
  max-width: 480px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

@media (max-width: 720px) {
  .topnav {
    flex-wrap: wrap;
    padding: 0.5rem 1rem;
    gap: 0.5rem 1rem;
  }
  .topnav-left { flex-wrap: wrap; gap: 0.5rem 1.25rem; }
  .theme-toggle { padding: 0.35rem 0.6rem; }
  .admin-content { padding: 1.25rem 1rem; }
}