:root {
    --primary-blue: #003BFF;
    --primary-blue-dark: #0030CC;
    --white: #ffffff;
    --gray-light: #f5f5f5;
    --gray-border: #e0e0e0;
    --text-dark: #1a1a1a;
    --text-muted: #666666;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--white);
    color: var(--text-dark);
    line-height: 1.6;
}

.logo-header {
    text-align: center;
    padding: 1.5rem 1rem 0.5rem;
}

.logo-header .logo {
    width: 130px;
    height: auto;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.header {
    text-align: center;
    margin-bottom: 2rem;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.header p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto;
}

.booking-wrapper {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 2rem;
}

.calendar-section,
.form-section {
    background: var(--white);
    border: 1px solid var(--gray-border);
    border-radius: 12px;
    padding: 1.5rem;
    max-width: 700px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}


.back-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    padding: 0;
    margin-bottom: 1rem;
    transition: color 0.2s ease;
}

.back-btn:hover {
    color: var(--primary-blue);
}

.calendar-section h2,
.form-section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-border);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading p {
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.day-group {
    margin-bottom: 1.5rem;
}

.day-header {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--gray-border);
}

.day-header .date {
    color: var(--text-muted);
    font-weight: 400;
}

.slots-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.slot-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--gray-border);
    border-radius: 6px;
    background: var(--white);
    color: var(--text-dark);
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}

.slot-btn:hover {
    border-color: var(--primary-blue);
    background: #f0f5ff;
}

.slot-btn.selected {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.no-slots {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-style: italic;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-dark);
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 59, 255, 0.1);
}

.form-group input.error {
    border-color: #dc3545;
}

.form-group input.prefilled {
    background-color: #f8f9fa;
    color: #495057;
}

.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s ease;
    resize: vertical;
    min-height: 80px;
}

.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 59, 255, 0.1);
}

.form-group textarea.error {
    border-color: #dc3545;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.radio-group.error {
    padding: 0.5rem;
    border-radius: 8px;
    background: #fff5f5;
    border: 1px solid #dc3545;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.radio-option:hover {
    border-color: var(--primary-blue);
    background: #f0f5ff;
}

.radio-option input[type="radio"] {
    width: 18px;
    height: 18px;
    margin: 0;
    margin-top: 0;
    flex-shrink: 0;
    cursor: pointer;
    accent-color: var(--primary-blue);
}

.radio-option input[type="radio"]:checked + span {
    color: var(--primary-blue);
    font-weight: 500;
}

.radio-option span {
    font-size: 0.95rem;
    color: var(--text-dark);
}

.selected-slot {
    background: #e8f0ff;
    border: 1px solid var(--primary-blue);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1.25rem;
    font-size: 0.95rem;
}

.selected-slot strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.selected-slot span {
    color: var(--primary-blue);
    font-weight: 500;
}

.submit-btn {
    width: 100%;
    padding: 1rem 1.5rem;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.submit-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

#form-messages {
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
}

#form-messages:empty {
    display: none;
}

#form-messages.error {
    background: #fee;
    color: #c00;
    border: 1px solid #fcc;
}

#form-messages.success {
    background: #efe;
    color: #060;
    border: 1px solid #cfc;
}

.success-screen {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--white);
    border: 1px solid var(--gray-border);
    border-radius: 12px;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: #22c55e;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 1.5rem;
}

.success-screen h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.success-screen p {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.success-note {
    color: var(--text-muted) !important;
    font-size: 0.95rem !important;
}

.homepage-btn {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.875rem 2rem;
    background-color: var(--primary-blue);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: background-color 0.2s ease;
}

.homepage-btn:hover {
    background-color: #0028cc;
}

footer {
    text-align: center;
    margin-top: 2rem;
    padding: 1.5rem;
    color: #999;
    font-size: 0.9rem;
}

footer a {
    color: var(--text-muted);
    text-decoration: none;
    margin: 0 1rem;
}

footer a:hover {
    color: var(--primary-blue);
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 1.75rem;
    }

    .header p {
        font-size: 1rem;
    }

    .calendar-section,
    .form-section {
        padding: 1.25rem;
    }

    .slot-btn {
        padding: 0.6rem 0.8rem;
        font-size: 0.85rem;
    }
}

.manage-section {
    background: var(--white);
    border: 1px solid var(--gray-border);
    border-radius: 12px;
    padding: 1.5rem;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.booking-card h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.booking-info {
    margin-bottom: 1.5rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-border);
}

.info-row:last-child {
    border-bottom: none;
}

.info-row .label {
    color: var(--text-muted);
    font-weight: 500;
}

.info-row .value {
    color: var(--text-dark);
    text-align: right;
}

.info-row.highlight {
    background: #e8f0ff;
    margin: 0.5rem -1rem;
    padding: 1rem;
    border-radius: 8px;
    border-bottom: none;
}

.info-row.highlight .value {
    color: var(--primary-blue);
    font-weight: 600;
}

.action-buttons {
    display: flex;
    gap: 1rem;
}

.action-btn {
    flex: 1;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

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

.cancel-btn {
    background: #dc3545;
    color: var(--white);
}

.cancel-btn:hover {
    background: #c82333;
}

.secondary-btn {
    background: var(--gray-light);
    color: var(--text-dark);
    border: 1px solid var(--gray-border);
}

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

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

.confirm-dialog h2 {
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.confirm-dialog p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

.confirm-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.confirm-buttons .action-btn {
    flex: 0 1 auto;
    min-width: 140px;
}

.error-state {
    text-align: center;
    padding: 2rem;
}

.error-icon {
    width: 60px;
    height: 60px;
    background: #dc3545;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.error-state h2 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.error-state p {
    color: var(--text-muted);
}

.admin-container {
    max-width: 1200px;
}

.admin-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--gray-light);
    border-radius: 8px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.admin-section {
    background: var(--white);
    border: 1px solid var(--gray-border);
    border-radius: 12px;
    padding: 1.5rem;
}

.stats-bar {
    display: flex;
    gap: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-border);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.bookings-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.bookings-table th,
.bookings-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-border);
}

.bookings-table th {
    font-weight: 600;
    color: var(--text-dark);
    background: var(--gray-light);
}

.bookings-table td {
    color: var(--text-dark);
}

.bookings-table a {
    color: var(--primary-blue);
    text-decoration: none;
}

.bookings-table a:hover {
    text-decoration: underline;
}

.past-booking {
    opacity: 0.6;
}

.status-active {
    color: #22c55e;
    font-weight: 500;
}

.status-past {
    color: var(--text-muted);
}

.status-legacy {
    color: #f59e0b;
    font-weight: 500;
}

.action-btn-small {
    padding: 0.375rem 0.75rem;
    font-size: 0.8rem;
    border: none;
    border-radius: 4px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}

@media (max-width: 768px) {
    .action-buttons {
        flex-direction: column;
    }

    .confirm-buttons {
        flex-direction: column;
    }

    .admin-controls {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .bookings-table {
        font-size: 0.8rem;
    }

    .bookings-table th,
    .bookings-table td {
        padding: 0.5rem;
    }
}