/* ?? Farbvariablen für Light & Dark Mode */
:root {
    --primary: #007bff;
    --danger: #dc3545;
    --warning: #ffc107;

    /* Light Mode */
    --bg-light: #f8f9fa;
    --text-light: #333;
    --card-light: #ffffff;
    --input-light: #f1f3f5;
    --border-light: #ced4da;

    /* Dark Mode */
    --bg-dark: #121212;
    --text-dark: #eee;
    --card-dark: #1e1e1e;
    --input-dark: #252525;
    --border-dark: #444;
}

/* ?? Light Mode (Standard) */
body {
    background-color: var(--bg-light);
    color: var(--text-light);
    font-family: Arial, sans-serif;
    transition: background 0.3s, color 0.3s;
}

/* ?? Dark Mode */
body.dark-mode {
    background-color: var(--bg-dark);
    color: var(--text-dark);
}

/* ?? Karten-Stil */
.card {
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    background-color: var(--card-light);
    color: var(--text-light);
    padding: 20px;
}

/* ?? Dark Mode für Karten */
.dark-mode .card {
    background-color: var(--card-dark);
    color: var(--text-dark);
}

/* ?? Karten-Header */
.card-header {
    background-color: #6c757d;
    color: #ffffff;
    padding: 15px;
    text-align: center;
    font-size: 1.2rem;
    font-weight: bold;
}

/* ?? Dark Mode Header */
.dark-mode .card-header {
    background-color: #343a40;
}

/* ??? Zusätzlicher Text im Header */
.card-header p {
    font-size: 0.9rem;
    margin: 0;
    color: var(--warning);
}

/* ?? Formularfelder */
.form-control {
    border-radius: 5px;
    border: 1px solid var(--border-light);
    background-color: var(--input-light);
    padding: 10px;
    transition: 0.3s;
}

/* ?? Dark Mode Formular */
.dark-mode .form-control {
    background-color: var(--input-dark);
    border: 1px solid var(--border-dark);
    color: var(--text-dark);
}

/* ? Fokus-Effekt auf Input-Felder */
.form-control:focus {
    border-color: var(--warning);
    box-shadow: 0 0 5px rgba(255, 193, 7, 0.5);
}

/* ? Dark Mode Fokus */
.dark-mode .form-control:focus {
    border-color: var(--warning);
    box-shadow: 0 0 5px rgba(255, 193, 7, 0.8);
}

/* ?? Buttons */
.btn {
    border-radius: 5px;
    padding: 12px;
    font-size: 1rem;
    font-weight: bold;
    text-transform: uppercase;
    transition: 0.3s;
}

/* ?? Primärer Button */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
}

/* ?? Gefährlicher Button */
.btn-danger {
    background-color: var(--danger);
    border-color: var(--danger);
    color: #ffffff;
}

.btn-danger:hover {
    background-color: #a71d2a;
    border-color: #a71d2a;
}

/* ?? Login- & Registrierungs-Buttons */
.btn-modern {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 8px;
    padding: 12px;
    border-radius: 12px;
    transition: all 0.2s ease-in-out;
    width: 100%;
}

.btn-modern i {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

/* ?? Sicherstellen, dass der Text mittig bleibt */
.btn-modern span {
    flex-grow: 1;
    text-align: center;
}

/* ?? Tabellen */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

/* ?? Dark Mode für Tabellen */
.dark-mode .table th, .dark-mode .table td {
    border-bottom: 1px solid var(--border-dark);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: var(--bg-light);
}

/* ?? Dark Mode für gestreifte Tabellen */
.dark-mode .table-striped tbody tr:nth-of-type(odd) {
    background-color: #1a1a1a;
}

/* ?? Scrollbare Tabelle */
.scrollable {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--border-light);
    padding: 10px;
    border-radius: 5px;
}

/* ?? Dark Mode für Scrollbare Tabelle */
.dark-mode .scrollable {
    border: 1px solid var(--border-dark);
    background-color: var(--card-dark);
}

/* ? Fehler- & Erfolgsmeldungen */
.alert {
    padding: 10px 15px;
    border-radius: 5px;
    margin-bottom: 15px;
}

/* ? Erfolg */
.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* ? Dark Mode Erfolg */
.dark-mode .alert-success {
    background-color: #2d6a4f;
    color: #c3e6cb;
    border: 1px solid #1b4332;
}

/* ? Fehler */
.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* ? Dark Mode Fehler */
.dark-mode .alert-error {
    background-color: #7b2d30;
    color: #f8d7da;
    border: 1px solid #f08080;
}