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

:root {
    --primary-blue: #4A90E2;
    --light-blue: #E8F4FD;
    --lighter-blue: #F0F8FF;
    --white: #FFFFFF;
    --text-dark: #333333;
    --text-gray: #666666;
    --text-light: #999999;
    --border-color: #E0E0E0;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(74, 144, 226, 0.2);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--white);
    color: var(--text-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Header */
.header {
    background: var(--white);
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-dark);
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-blue);
}

.nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-blue);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    right: 0;
    left: 0;
    height: 2px;
    background: var(--primary-blue);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-dark);
}

.admin-link {
    padding: 8px 16px;
    background: var(--primary-blue);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-size: 14px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--lighter-blue) 0%, var(--light-blue) 100%);
    padding: 80px 0;
    text-align: center;
}

.hero-title {
    font-size: 42px;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.hero-cta {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
    text-align: center;
}

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

.btn-primary:hover {
    background: #357ABD;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--shadow-hover);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background: var(--light-blue);
}

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

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

.btn-whatsapp {
    background: #25D366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #20BA5A;
}

.btn-telegram {
    background: #0088cc;
    color: var(--white);
}

.btn-telegram:hover {
    background: #0077B5;
}

.btn-whatsapp-large,
.btn-telegram-large {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 40px;
    text-decoration: none;
    border-radius: 12px;
    transition: all 0.3s;
}

.btn-whatsapp-large {
    background: #25D366;
    color: var(--white);
}

.btn-telegram-large {
    background: #0088cc;
    color: var(--white);
}

.btn-icon {
    font-size: 32px;
}

/* Sections */
.section-title {
    font-size: 32px;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-dark);
}

/* Categories */
.categories {
    padding: 60px 0;
    background: var(--white);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.category-card {
    background: var(--lighter-blue);
    padding: 40px 20px;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    color: var(--text-dark);
    transition: all 0.3s;
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-hover);
    border-color: var(--primary-blue);
}

.category-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.category-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--primary-blue);
}

.category-card p {
    color: var(--text-gray);
    font-size: 14px;
}

/* Products */
.featured-products,
.products-page {
    padding: 60px 0;
    background: var(--lighter-blue);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.product-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px var(--shadow);
    transition: all 0.3s;
    text-decoration: none;
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-hover);
}

.product-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    background: var(--light-blue);
}

.product-info {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.product-short-desc {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 15px;
    flex-grow: 1;
}

.product-price {
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-blue);
    margin-top: auto;
}

.product-code {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 5px;
}

/* Product Detail */
.product-detail-page {
    padding: 40px 0;
    background: var(--white);
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.product-images {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.product-main-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 12px;
    cursor: pointer;
    background: var(--light-blue);
}

.product-thumbnails {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.product-thumbnail {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.3s;
    background: var(--light-blue);
}

.product-thumbnail:hover,
.product-thumbnail.active {
    border-color: var(--primary-blue);
    transform: scale(1.1);
}

.product-info-detail {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.product-title-detail {
    font-size: 32px;
    color: var(--text-dark);
}

.product-price-detail {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary-blue);
}

.product-code-detail {
    color: var(--text-gray);
}

.product-description {
    color: var(--text-gray);
    line-height: 1.8;
}

.product-keywords {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.keyword-tag {
    background: var(--light-blue);
    color: var(--primary-blue);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
}

.contact-cta-btn {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

/* Reviews */
.reviews-section {
    background: var(--lighter-blue);
    padding: 40px;
    border-radius: 12px;
    margin-top: 40px;
}

.rating-summary {
    margin-bottom: 30px;
}

.rating-average {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.rating-number {
    font-size: 48px;
    font-weight: bold;
    color: var(--primary-blue);
}

.stars {
    display: flex;
    gap: 5px;
}

.star {
    font-size: 24px;
    color: #FFD700;
}

.star.empty {
    color: var(--border-color);
}

.rating-count {
    color: var(--text-gray);
}

.add-review-form {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
}

.star-rating-input {
    display: flex;
    gap: 10px;
    margin: 10px 0;
}

.star-rating-input .star {
    font-size: 32px;
    cursor: pointer;
    color: var(--border-color);
    transition: color 0.2s;
}

.star-rating-input .star:hover,
.star-rating-input .star.active {
    color: #FFD700;
}

.reviews-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.review-item {
    background: var(--white);
    padding: 20px;
    border-radius: 12px;
    border-right: 4px solid var(--primary-blue);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.reviewer-name {
    font-weight: 600;
    color: var(--text-dark);
}

.review-rating {
    display: flex;
    gap: 3px;
}

.review-text {
    color: var(--text-gray);
    margin-bottom: 10px;
}

.review-reply {
    background: var(--light-blue);
    padding: 15px;
    border-radius: 8px;
    margin-top: 10px;
    border-right: 3px solid var(--primary-blue);
}

.review-reply-label {
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 5px;
    display: block;
}

/* FAQ */
.faq-section {
    margin-top: 40px;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--lighter-blue);
    transition: background 0.3s;
}

.faq-question:hover {
    background: var(--light-blue);
}

.faq-question-text {
    font-weight: 600;
    color: var(--text-dark);
}

.faq-toggle {
    font-size: 20px;
    color: var(--primary-blue);
    transition: transform 0.3s;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s;
    color: var(--text-gray);
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 1000px;
}

/* Contact CTA */
.contact-cta {
    padding: 60px 0;
    background: var(--lighter-blue);
}

.cta-box {
    background: var(--white);
    padding: 50px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px var(--shadow);
}

.cta-box h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.cta-box p {
    color: var(--text-gray);
    margin-bottom: 30px;
    font-size: 18px;
}

.contact-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-buttons-large {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 400px;
    margin: 0 auto;
}

.contact-page {
    padding: 60px 0;
    background: var(--lighter-blue);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    background: var(--white);
    padding: 50px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px var(--shadow);
}

.contact-info h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.contact-info p {
    color: var(--text-gray);
    margin-bottom: 30px;
    font-size: 18px;
}

/* Blog */
.blog-page {
    padding: 60px 0;
    background: var(--lighter-blue);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.blog-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px var(--shadow);
    transition: all 0.3s;
    text-decoration: none;
    color: var(--text-dark);
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-hover);
}

.blog-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--light-blue);
}

.blog-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.blog-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.blog-excerpt {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 15px;
    flex-grow: 1;
}

.blog-date {
    color: var(--text-light);
    font-size: 12px;
}

.blog-detail-page {
    padding: 60px 0;
    background: var(--white);
}

.blog-detail {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 2px 10px var(--shadow);
}

.blog-detail-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 30px;
    background: var(--light-blue);
}

.blog-detail-title {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.blog-detail-date {
    color: var(--text-light);
    margin-bottom: 30px;
}

.blog-detail-content {
    color: var(--text-gray);
    line-height: 1.8;
    font-size: 16px;
}

/* Filters */
.products-filter {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
    transition: all 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

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

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 50px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: var(--white);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.social-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--white);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

/* Page Title */
.page-title {
    font-size: 36px;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-dark);
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: var(--text-light);
    font-size: 12px;
}

.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}

.lightbox.active {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: var(--white);
    font-size: 40px;
    cursor: pointer;
    z-index: 10001;
}

.lightbox-img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
}

.lightbox-prev,
.lightbox-next {
    background: rgba(255, 255, 255, 0.3);
    border: none;
    color: var(--white);
    font-size: 40px;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
    transition: background 0.3s;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Admin Panel */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
    background: var(--lighter-blue);
}

.admin-sidebar {
    width: 250px;
    background: var(--white);
    box-shadow: 2px 0 10px var(--shadow);
    padding: 20px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.admin-logo h2 {
    color: var(--primary-blue);
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.admin-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.admin-nav-link {
    padding: 12px 15px;
    text-decoration: none;
    color: var(--text-dark);
    border-radius: 8px;
    transition: all 0.3s;
}

.admin-nav-link:hover,
.admin-nav-link.active {
    background: var(--light-blue);
    color: var(--primary-blue);
}

.admin-footer {
    margin-top: auto;
    padding-top: 20px;
    border-top: 2px solid var(--border-color);
}

.admin-content {
    margin-right: 250px;
    flex: 1;
    padding: 30px;
}

.admin-section {
    display: none;
}

.admin-section.active {
    display: block;
}

.admin-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.admin-section-header h2 {
    color: var(--text-dark);
}

.admin-table-container {
    background: var(--white);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 10px var(--shadow);
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 15px;
    text-align: right;
    border-bottom: 1px solid var(--border-color);
}

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

.admin-table img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
}

.admin-actions {
    display: flex;
    gap: 10px;
}

.btn-small {
    padding: 6px 12px;
    font-size: 14px;
}

.btn-danger {
    background: #E74C3C;
    color: var(--white);
}

.btn-danger:hover {
    background: #C0392B;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: 12px;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 2px solid var(--border-color);
}

.modal-header h3 {
    color: var(--text-dark);
}

.modal-close {
    font-size: 28px;
    cursor: pointer;
    color: var(--text-gray);
    transition: color 0.3s;
}

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

.modal-body {
    padding: 20px;
}

.reviews-admin-list,
.faq-admin-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.review-admin-item,
.faq-admin-item {
    background: var(--white);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 10px var(--shadow);
}

.settings-form {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 10px var(--shadow);
    max-width: 600px;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        right: 0;
        left: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 15px var(--shadow);
        z-index: 999;
    }

    .nav.show {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .product-detail {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }

    .admin-content {
        margin-right: 0;
    }

    .products-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }
}