/* assets/style.css - Haupt-Stylesheet */
:root {
    --primary: #0056b3;
    --primary-dark: #004494;
    --primary-light: #e8f0fe;
    --success: #28a745;
    --success-light: #d4edda;
    --warning: #ffc107;
    --warning-light: #fff3cd;
    --danger: #dc3545;
    --danger-light: #f8d7da;
    --info: #17a2b8;
    --info-light: #d1ecf1;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-500: #adb5bd;
    --gray-700: #495057;
    --gray-900: #212529;
    --border-radius: 8px;
    --shadow: 0 2px 10px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    background: var(--gray-100);
    color: var(--gray-900);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.main-header {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 3px solid var(--primary);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.main-header nav {
    display: flex;
    gap: 5px;
    align-items: center;
}

.main-header nav a {
    padding: 8px 16px;
    text-decoration: none;
    color: var(--gray-700);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.main-header nav a:hover {
    background: var(--gray-100);
}

.main-header nav a.active {
    background: var(--primary);
    color: white;
}

.main-header nav a.admin-link {
    background: var(--gray-900);
    color: white;
    font-size: 0.9rem;
}

.main-header nav a.admin-link:hover {
    background: #333;
}

/* Hero */
.hero {
    text-align: center;
    padding: 50px 20px 30px;
}

.hero h1 {
    font-size: 2.2rem;
    color: var(--gray-900);
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.hero p {
    font-size: 1.1rem;
    color: var(--gray-700);
    max-width: 600px;
    margin: 0 auto;
}

/* Booking Section */
.booking-section {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    margin: 30px 0;
}

.date-selector {
    margin-bottom: 30px;
}

.date-selector label {
    font-weight: 600;
    display: block;
    margin-bottom: 10px;
    color: var(--gray-700);
}

.date-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.date-btn {
    padding: 10px 16px;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    background: white;
    cursor: pointer;
}

.date-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.date-btn.selected {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(0,86,179,0.3);
}

/* Time Slots */
.time-slots h2 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--gray-900);
}

.slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 15px;
}

.slot-card {
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 20px;
    text-align: center;
    transition: var(--transition);
    background: white;
}

.slot-card.slot-available {
    border-color: #c6e0c6;
    background: #f8fff8;
}

.slot-card.slot-available:hover {
    border-color: var(--success);
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.slot-card.slot-full {
    border-color: var(--gray-200);
    background: var(--gray-100);
    opacity: 0.7;
}

.slot-time {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.slot-status {
    margin-bottom: 12px;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-full {
    background: var(--danger-light);
    color: var(--danger);
}

.badge-free {
    background: var(--success-light);
    color: var(--success);
}

.badge-offen {
    background: var(--warning-light);
    color: #856404;
}

.badge-bestaetigt {
    background: var(--info-light);
    color: var(--info);
}

.badge-erledigt {
    background: var(--success-light);
    color: var(--success);
}

.badge-storniert {
    background: var(--danger-light);
    color: var(--danger);
}

.badge-today {
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.7rem;
    margin-left: 5px;
}

.badge-overdue {
    background: var(--danger-light);
    color: var(--danger);
    font-size: 0.7rem;
    margin-left: 5px;
}

.badge-done {
    background: var(--success-light);
    color: var(--success);
}

.badge-pending {
    background: var(--warning-light);
    color: #856404;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(0,86,179,0.3);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

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

.btn-success:hover {
    background: #218838;
}

.btn-warning {
    background: var(--warning);
    color: #856404;
}

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

.btn-book {
    background: var(--success);
    color: white;
    width: 100%;
    padding: 10px;
}

.btn-book:hover {
    background: #218838;
    box-shadow: 0 4px 12px rgba(40,167,69,0.3);
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-sm {
    padding: 6px 10px;
    font-size: 0.85rem;
    border-radius: 6px;
}

.btn-edit {
    background: var(--info-light);
    color: var(--info);
}

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

.btn-logout {
    background: var(--danger);
    color: white;
    font-size: 0.9rem;
    padding: 8px 16px;
}

/* Forms */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--gray-700);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0,86,179,0.1);
}

.form-row {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1;
    min-width: 200px;
}

.form-group-grow {
    flex: 2 !important;
}

.form-group-btn {
    display: flex;
    align-items: flex-end;
    gap: 8px;
}

/* Alert */
.alert {
    padding: 15px 20px;
    border-radius: var(--border-radius);
    margin: 15px 0;
    font-weight: 500;
}

.alert-success {
    background: var(--success-light);
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: var(--danger-light);
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow-y: auto;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    max-width: 500px;
    width: 100%;
    position: relative;
    box-shadow: var(--shadow-lg);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content.modal-lg {
    max-width: 700px;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--gray-500);
    line-height: 1;
}

.modal-close:hover {
    color: var(--danger);
}

.modal-content h2 {
    margin-bottom: 5px;
    font-size: 1.5rem;
}

.modal-subtitle {
    color: var(--gray-700);
    margin-bottom: 20px;
}

/* Footer */
.main-footer {
    background: var(--gray-900);
    color: var(--gray-500);
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

.main-footer p {
    font-size: 0.9rem;
}

/* Login */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #0056b3 0%, #004494 50%, #003366 100%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-box {
    background: white;
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.login-box h1 {
    text-align: center;
    margin-bottom: 5px;
    font-size: 1.8rem;
}

.subtitle {
    text-align: center;
    color: var(--gray-500);
    margin-bottom: 30px;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
}

.login-footer a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--gray-900);
    color: white;
    padding: 15px 25px;
    border-radius: var(--border-radius);
    font-weight: 500;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 2000;
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 1.6rem; }
    .slots-grid { grid-template-columns: 1fr 1fr; }
    .header-inner { flex-direction: column; gap: 10px; }
    .booking-section { padding: 20px; }
    .form-row { flex-direction: column; }
    .form-row .form-group { min-width: auto; }
    .date-buttons { justify-content: center; }
}

@media (max-width: 480px) {
    .slots-grid { grid-template-columns: 1fr; }
    .modal-content { padding: 20px; }
    .login-box { padding: 25px; }
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

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

.table th {
    background: var(--gray-100);
    text-align: left;
    padding: 12px 15px;
    font-weight: 700;
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-300);
    white-space: nowrap;
}

.table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--gray-200);
    vertical-align: middle;
}

.table tbody tr:hover {
    background: var(--gray-100);
}

.table-striped tbody tr:nth-child(even) {
    background: #fafafa;
}

.text-center { text-align: center; }

.row-today {
    background: var(--primary-light) !important;
}

.row-overdue {
    background: var(--danger-light) !important;
}

.row-erledigt {
    background: var(--success-light) !important;
}

.actions-cell {
    white-space: nowrap;
    display: flex;
    gap: 5px;
}

.status-select {
    padding: 6px 10px;
    border-radius: 6px;
    border: 2px solid var(--gray-300);
    font-weight: 600;
    font-size: 0.85rem;
    background: white;
}

.capacity-input {
    padding: 6px 10px;
    border-radius: 6px;
    border: 2px solid var(--gray-300);
    font-weight: 600;
    text-align: center;
}