:root {
    /* Farben */
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #2d3436;
    --text-muted: #636e72;
    --border-color: #dfe6e9;
    
    /* Abstände & Radien */
    --radius: 8px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- Layout --- */
.container {
    flex: 1;
    width: 100%;
    max-width: 900px;
    margin: 2rem auto;
    padding: 2rem;
    background: var(--card-bg);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
}

.admin-container {
    max-width: 1100px;
}

/* --- Navigation --- */
.navbar {
    background-color: var(--card-bg);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    padding: 0.6rem 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
    font-size: 0.95rem;
}

.nav-links a:hover {
    background-color: var(--bg-color);
    color: var(--primary-color);
}

.admin-link {
    border: 1px solid var(--primary-color);
    color: var(--primary-color) !important;
}

.logout-link {
    color: var(--danger-color) !important;
}

/* --- Formulare --- */
.form-card {
    max-width: 480px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-group input, 
.form-group select {
    padding: 0.8rem 1rem;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus, 
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 123, 255, 0.15);
}

/* --- Buttons --- */
.btn-primary {
    background-color: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-primary:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
}

/* --- Tabellen (Benutzerverwaltung) --- */
.user-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
    font-size: 0.95rem;
}

.user-table th {
    background-color: var(--bg-color);
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
    padding: 1rem;
    text-align: left;
    border-bottom: 2px solid var(--border-color);
}

.user-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.user-table tr:hover {
    background-color: rgba(0,0,0,0.01);
}

/* --- Badges & Icons --- */
.badge {
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
    display: inline-block;
}

.bg-success { background-color: var(--success-color); }
.bg-warning { background-color: var(--warning-color); color: #2d3436; }
.bg-secondary { background-color: var(--text-muted); }

.btn-action {
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    border: none;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
}

.btn-unlock { background-color: var(--success-color); }
.btn-delete { background-color: var(--danger-color); }
.btn-action:hover { opacity: 0.9; filter: brightness(1.1); }

/* --- Footer --- */
footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: auto;
}

/* --- Mobile Anpassungen --- */
@media (max-width: 600px) {
    .nav-container {
        flex-direction: column;
        padding: 1rem;
    }
    
    .nav-links {
        margin-top: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .container {
        margin: 1rem 0;
        border-radius: 0;
        padding: 1.5rem;
    }

    .user-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}
/*Passwort Validierung*/
/* --- Passwort Anforderungen --- */
.requirements-list {
    list-style: none;
    padding: 0;
    margin-top: 10px;
    font-size: 0.85rem;
}

.requirements-list li {
    margin-bottom: 5px;
    color: var(--text-muted);
    transition: var(--transition);
}

.requirements-list li::before {
    content: "✖ ";
    margin-right: 5px;
}

.requirements-list li.valid {
    color: var(--success-color);
}

.requirements-list li.valid::before {
    content: "✔ ";
}

.requirements-list li.invalid {
    color: var(--danger-color);
}

/* --- Benachrichtigungen / Alerts --- */
.alert {
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
}

.alert-danger {
    background-color: #fff5f5;
    color: var(--danger-color);
    border: 1px solid #feb2b2;
}

.alert-success {
    background-color: #f0fff4;
    color: var(--success-color);
    border: 1px solid #9ae6b4;
}
/* Spezielles Styling für den Forgot-Password Link in der Nav */
.forgot-link {
    font-size: 0.85rem !important;
    color: var(--text-muted) !important;
    font-weight: 400 !important;
}

.forgot-link:hover {
    color: var(--primary-color) !important;
    background: none !important;
}

/* Optimierung für die Alert-Boxen (Sanftere Farben) */
.alert {
    display: flex;
    align-items: center;
    gap: 10px;
    border-left: 5px solid transparent;
}

.alert-danger {
    border-left-color: var(--danger-color);
}

.alert-success {
    border-left-color: var(--success-color);
}