/* ===== Variables ===== */
:root {
    --primary: #000000;
    --primary-dark: #000000;
    --primary-light: #404040;
    --secondary: #404040;
    --accent: #737373;
    --dark: #0a0a0a;
    --gray-600: #525252;
    --gray-500: #737373;
    --gray-400: #a3a3a3;
    --gray-300: #d4d4d4;
    --gray-200: #e5e5e5;
    --gray-100: #f5f5f5;
    --gray-50: #fafafa;
    --white: #ffffff;
    --success: #22c55e;
    --error: #ef4444;
    --warning: #f59e0b;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
    --sidebar-width: 260px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--dark);
    background: var(--gray-100);
}

a {
    text-decoration: none;
    color: inherit;
}

/* ===== Login Screen ===== */
.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 20px;
}

.login-box {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.login-box h1 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--dark);
}

.login-box .form-group {
    text-align: left;
    margin-bottom: 20px;
}

.login-box .btn {
    width: 100%;
    margin-bottom: 16px;
}

.back-link {
    display: inline-block;
    color: var(--gray-500);
    font-size: 0.875rem;
}

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

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 12px;
}

/* ===== Admin Panel Layout ===== */
.admin-panel {
    display: flex;
    min-height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--primary);
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    width: 100%;
    border: none;
    background: none;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--gray-600);
    transition: var(--transition);
    text-align: left;
    font-family: inherit;
}

.nav-item:hover {
    background: var(--gray-100);
    color: var(--dark);
}

.nav-item.active {
    background: var(--primary);
    color: var(--white);
}

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--gray-200);
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 32px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-header {
    margin-bottom: 32px;
}

.tab-header h1 {
    font-size: 1.75rem;
    margin-bottom: 8px;
}

.tab-header p {
    color: var(--gray-500);
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
}

.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(30, 64, 175, 0.1);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-group input[type="file"] {
    padding: 8px;
}

.form-group small {
    display: block;
    color: var(--gray-500);
    font-size: 0.8rem;
    margin-top: 4px;
}

.upload-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.service-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.full-width {
    grid-column: 1 / -1;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

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

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

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

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

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

.btn-danger:hover {
    background: #dc2626;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

/* ===== Sections ===== */
.upload-section,
.services-section,
.images-section,
.settings-form {
    background: var(--white);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}

.upload-section h2,
.services-section h2,
.images-section h2 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-200);
}

/* ===== Images Grid ===== */
.images-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
}

.image-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.image-card:hover {
    box-shadow: var(--shadow-md);
}

.image-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.image-card-info {
    padding: 16px;
}

.image-card-info h4 {
    margin-bottom: 4px;
}

.image-card-info p {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.image-card-actions {
    display: flex;
    gap: 8px;
}

/* ===== Services List ===== */
.services-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.service-item {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.service-item-info h4 {
    margin-bottom: 4px;
}

.service-item-info p {
    font-size: 0.9rem;
    color: var(--gray-500);
}

.service-item-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.service-item-actions {
    display: flex;
    gap: 8px;
}

/* ===== Reviews Section Admin ===== */
.reviews-section-admin {
    background: var(--white);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}

.reviews-section-admin h2 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-200);
}

.reviews-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.review-item {
    background: var(--white);
    border-radius: var(--radius);
    padding: 20px;
    border: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.review-item-info h4 {
    margin-bottom: 4px;
    color: var(--dark);
}

.review-item-info p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.5;
}

.review-item-stars {
    color: #fbbf24;
    font-size: 1rem;
    margin-bottom: 8px;
}

.review-item-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.review-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.review-form-grid .full-width {
    grid-column: 1 / -1;
}

@media (max-width: 768px) {
    .review-form-grid {
        grid-template-columns: 1fr;
    }
    
    .review-item {
        flex-direction: column;
    }
    
    .review-item-actions {
        align-self: flex-end;
    }
}

/* ===== Contacts List ===== */
.contacts-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--gray-200);
}

.contact-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.contact-header h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.contact-date {
    font-size: 0.85rem;
    color: var(--gray-500);
}

.contact-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.contact-detail {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.contact-detail-label {
    color: var(--gray-500);
}

.contact-detail a {
    color: var(--primary);
}

.contact-detail a:hover {
    text-decoration: underline;
}

.contact-message {
    background: var(--gray-50);
    padding: 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
}

.contact-message-label {
    font-weight: 500;
    margin-bottom: 8px;
}

.contact-actions {
    display: flex;
    gap: 8px;
}

/* ===== Loading & Empty States ===== */
.loading {
    text-align: center;
    color: var(--gray-500);
    padding: 40px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

/* ===== Messages ===== */
.success-message {
    background: #d1fae5;
    color: #065f46;
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.error-message-inline {
    background: #fee2e2;
    color: #991b1b;
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: var(--transition);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: 16px;
    }
    
    .upload-grid,
    .service-form-grid {
        grid-template-columns: 1fr;
    }
    
    .service-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .contact-header {
        flex-direction: column;
    }
}