/* ========== RESET & VARIABLES ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Inter', sans-serif;
    background-color: #ffffff;
    color: #1e293b;
    line-height: 1.5;
    scroll-behavior: smooth;
}
:root {
    --primary: #0f3b5e;
    --primary-dark: #0a2c48;
    --primary-light: #eef5ff;
    --secondary: #3b82f6;
    --accent: #2563eb;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-600: #475569;
    --gray-800: #1e293b;
    --shadow-sm: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.02);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.02);
    --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.05), 0 10px 10px -5px rgba(0,0,0,0.01);
    --transition: all 0.25s ease;
}
a {
	text-decoration: none;
	color: rgb(30, 41, 59);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== HEADER & NAVBAR ========== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.96);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    padding: 10px;
}
.logo h1 {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.logo span {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--gray-600);
}
.nav-links {
    display: flex;
    gap: 1.75rem;
    list-style: none;
    flex-wrap: wrap;
}
.nav-links a {
    text-decoration: none;
    font-weight: 600;
    color: var(--gray-800);
    transition: var(--transition);
    font-size: 0.95rem;
}
.nav-links a:hover {
    color: var(--secondary);
}
.menu-toggle {
    display: none;
    font-size: 1.6rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--primary);
}
@media (max-width: 992px) {
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem 0;
    }
    .nav-links.active {
        display: flex;
    }
    .menu-toggle {
        display: block;
    }
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 40px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
}
.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.btn-outline {
    border: 1.5px solid var(--primary);
    background: transparent;
    color: var(--primary);
}
.btn-outline:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

/* ========== SECTIONS & TITLES ========== */
section {
    padding: 80px 0;
    scroll-margin-top: 80px;
}
.section-title {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 48px;
    text-align: center;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #0f3b5e, #3b82f6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
/* Dùng riêng cho các trang account, download (giữ nguyên) */
.account-content .section-title {
    font-size: 1.5rem;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 12px;
    background: none;
    color: var(--primary);
    -webkit-background-clip: unset;
}

/* ========== HERO ========== */
.hero {
    background: linear-gradient(135deg, #f0f9ff, #e6f0fa);
    padding: 100px 0;
}
.hero-grid {
    display: flex;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}
.hero-content {
    flex: 1;
}
.hero-content h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--primary);
}
.hero-content p {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: 32px;
}
.hero-image {
    flex: 1;
    text-align: center;
}
.hero-image img {
    max-width: 100%;
    border-radius: 32px;
    box-shadow: var(--shadow-lg);
}
@media (max-width: 768px) {
    .hero-grid {
        flex-direction: column;
        text-align: center;
    }
    .hero-content h1 {
        font-size: 2.4rem;
    }
    .section-title {
        font-size: 1.8rem;
    }
    section {
        padding: 60px 0;
    }
}

/* ========== CARD GRID (DÙNG CHUNG) ========== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 24px;
}
/* Card dạng service, project, news, product */
.service-card, .project-card, .news-card, .product-card {
    background: white;
    border-radius: 24px;
    padding: 28px 24px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}
.service-card:hover, .project-card:hover, .news-card:hover, .product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary);
}
.service-icon {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 20px;
}
.card-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
}
.project-img, .news-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 16px;
    margin-bottom: 16px;
}
.news-card-content {
    padding: 20px;
}
.news-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}
.btn-read {
    display: inline-block;
    margin-top: 12px;
    color: var(--secondary);
    font-weight: 600;
    text-decoration: none;
}

/* ========== TEAM ========== */
.team-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    justify-content: center;
}
.team-card {
    background: white;
    border-radius: 32px;
    text-align: center;
    padding: 28px 20px;
    width: 240px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.team-card:hover {
    transform: scale(1.02);
}
.team-avatar {
    width: 120px;
    height: 120px;
    background: var(--primary-light);
    border-radius: 60px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary);
}

/* ========== DOWNLOAD LIST ========== */
.download-list {
    background: var(--gray-50);
    border-radius: 28px;
    padding: 24px;
}
.download-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
}
.download-item:hover {
    background: white;
    border-radius: 20px;
    padding-left: 28px;
}

/* ========== FORM (DÙNG CHUNG) ========== */
.form-container {
    max-width: 500px;
    margin: 0 auto;
    background: white;
    padding: 32px;
    border-radius: 32px;
    box-shadow: var(--shadow-md);
}
.form-group {
    margin-bottom: 20px;
}
.form-group input, .form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1.5px solid var(--gray-200);
    border-radius: 28px;
    font-family: inherit;
    transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.2);
}
.map-placeholder {
    background: #e2e8f0;
    height: 280px;
    border-radius: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 24px;
    color: var(--gray-600);
}

/* ========== FOOTER ========== */
.footer {
    background: #0a2c3b;
    color: #cbd5e1;
    padding: 48px 0 24px;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}
.footer h4 {
    color: white;
    margin-bottom: 20px;
}
.social-icons i {
    font-size: 1.4rem;
    margin-right: 16px;
    transition: var(--transition);
    cursor: pointer;
}
.social-icons i:hover {
    color: var(--secondary);
}
.footer-grid a {
    text-decoration: none;
    color: #cbd5e1;
}

/* ========== CTA BANNER ========== */
.cta-banner {
    background: linear-gradient(120deg, var(--primary), var(--secondary));
    border-radius: 40px;
    padding: 48px 32px;
    text-align: center;
    color: white;
}
.cta-banner h3 {
    font-size: 2rem;
}

/* ========== BREADCRUMB ========== */
.breadcrumb {
    background: var(--gray-50);
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-200);
}
.breadcrumb-list {
    display: flex;
    gap: 8px;
    list-style: none;
    flex-wrap: wrap;
}
.breadcrumb-list a {
    color: var(--secondary);
    text-decoration: none;
}
.breadcrumb-list li:not(:last-child):after {
    content: "/";
    margin-left: 8px;
    color: var(--gray-600);
}

/* ========== ARTICLE DETAIL ========== */
.article-section {
    padding: 48px 0 80px;
}
.article-header {
    margin-bottom: 32px;
}
.article-category {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 20px;
}
.article-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 16px;
    color: var(--primary);
}
.article-meta {
    display: flex;
    gap: 24px;
    color: var(--gray-600);
    font-size: 0.9rem;
    margin-bottom: 32px;
}
.featured-img {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: 32px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-md);
}
.article-content {
    font-size: 1.05rem;
    max-width: 850px;
    margin: 0 auto;
}
.article-content h2 {
    font-size: 1.8rem;
    margin: 32px 0 16px;
    color: var(--primary);
}
.article-content blockquote {
    border-left: 4px solid var(--secondary);
    background: var(--gray-50);
    padding: 20px 28px;
    font-style: italic;
    margin: 28px 0;
    border-radius: 24px;
}
.share-bar {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 16px;
    align-items: center;
}
.share-btn {
    background: var(--gray-100);
    padding: 8px 16px;
    border-radius: 40px;
    text-decoration: none;
    color: var(--gray-800);
    transition: var(--transition);
}
.share-btn:hover {
    background: var(--secondary);
    color: white;
}
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    color: var(--secondary);
    text-decoration: none;
    font-weight: 500;
}
.back-link:hover {
    text-decoration: underline;
}

/* ========== RELATED SECTION (DÙNG CHUNG) ========== */
.related-section {
    background: var(--gray-50);
    padding: 64px 0;
}
.related-card {
    background: white;
    border-radius: 24px;
    padding: 24px;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
}
.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.related-card i {
    font-size: 2rem;
    color: var(--secondary);
    margin-bottom: 12px;
}
.related-card h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}
.btn-sm {
    display: inline-block;
    margin-top: 16px;
    color: var(--secondary);
    font-weight: 600;
    text-decoration: none;
}

/* ========== DOWNLOAD DETAIL ========== */
.detail-section {
    padding: 48px 0 80px;
}
.detail-card {
    background: white;
    border-radius: 32px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-bottom: 48px;
}
.detail-header {
    background: linear-gradient(135deg, var(--primary-light), #ffffff);
    padding: 32px 40px;
    border-bottom: 1px solid var(--gray-200);
}
.detail-icon {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 16px;
}
.detail-title {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 12px;
}
.detail-version {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 4px 12px;
    border-radius: 40px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-right: 12px;
}
.detail-date {
    color: var(--gray-600);
    font-size: 0.9rem;
}
.detail-body {
    padding: 40px;
}
/* info-grid dùng riêng cho download detail, không xung đột với account */
.detail-body .info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    background: var(--gray-50);
    border-radius: 28px;
    padding: 24px;
    margin-bottom: 32px;
}
.info-item {
    display: flex;
    align-items: center;
    gap: 12px;
}
.info-item i {
    font-size: 1.8rem;
    color: var(--secondary);
}
.description h3 {
    font-size: 1.4rem;
    margin-bottom: 16px;
    color: var(--primary);
}
.requirements {
    background: var(--gray-50);
    border-radius: 28px;
    padding: 24px;
    margin-bottom: 32px;
}
.requirements h3 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.requirements ul {
    padding-left: 24px;
}
.preview-img {
    width: 100%;
    border-radius: 24px;
    margin: 24px 0;
    box-shadow: var(--shadow-sm);
}
.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: var(--primary);
    color: white;
    padding: 14px 36px;
    border-radius: 60px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
}
.download-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ========== PAGINATION ========== */
.pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid var(--gray-200);
}
.pagination .results,
.results {
    font-size: 0.9rem;
    color: var(--gray-600);
    background: var(--gray-50);
    padding: 6px 14px;
    border-radius: 40px;
    order: 1;
}
.pagination .links,
.links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    order: 2;
}
.pagination .links a,
.pagination .links b,
.links a,
.links b {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 40px;
    background: white;
    color: var(--primary);
    border: 1px solid var(--gray-200);
}
.pagination .links b,
.links b {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}
.pagination .links a:hover,
.links a:hover {
    background: var(--primary-light);
    border-color: var(--secondary);
    transform: translateY(-2px);
}
@media (max-width: 640px) {
    .pagination {
        flex-direction: column;
    }
    .pagination .results { order: 2; text-align: center; }
    .pagination .links { order: 1; justify-content: center; }
    .pagination .links a, .pagination .links b { min-width: 34px; height: 34px; }
}

/* ========== ACCOUNT PAGE (ĐÃ GỌN, KHÔNG TRÙNG) ========== */
.account-wrapper {
    padding: 40px 0 80px;
    background: var(--gray-50);
    min-height: calc(100vh - 200px);
}
.account-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
}
.account-sidebar {
    background: white;
    border-radius: 28px;
    padding: 32px 20px;
    box-shadow: var(--shadow-sm);
    height: fit-content;
    position: sticky;
    top: 100px;
}
.avatar-section {
    text-align: center;
    margin-bottom: 32px;
}
.avatar {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 3rem;
    color: white;
}
.user-name {
    font-size: 1.3rem;
    font-weight: 700;
}
.user-email {
    color: var(--gray-600);
    font-size: 0.85rem;
    margin-top: 4px;
}
.sidebar-menu {
    list-style: none;
    margin-top: 16px;
}
.sidebar-menu li {
    margin-bottom: 8px;
}
.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 16px;
    color: var(--gray-800);
    text-decoration: none;
    font-weight: 500;
}
.sidebar-menu a:hover, .sidebar-menu .active a {
    background: var(--primary-light);
    color: var(--primary);
}
.account-content {
    background: white;
    border-radius: 28px;
    padding: 32px;
    box-shadow: var(--shadow-sm);
}
/* info-grid dành riêng cho account */
.account-content .info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}
.info-field {
    margin-bottom: 16px;
}
.info-field label {
    font-weight: 600;
    color: var(--gray-600);
    display: block;
    margin-bottom: 4px;
    font-size: 0.85rem;
}
.info-field p {
    font-size: 1rem;
    background: var(--gray-50);
    padding: 10px 14px;
    border-radius: 16px;
}
.download-history {
    margin-top: 32px;
}
.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-200);
}
.history-name i {
    margin-right: 12px;
    color: var(--secondary);
}
.history-date {
    font-size: 0.8rem;
    color: var(--gray-600);
}
.btn-edit {
    background: none;
    border: 1px solid var(--gray-200);
    padding: 8px 20px;
    border-radius: 40px;
    cursor: pointer;
}
.btn-edit:hover {
    background: var(--primary-light);
    border-color: var(--secondary);
}
.logout-btn {
    margin-top: 32px;
    border-top: 1px solid var(--gray-200);
    padding-top: 24px;
    text-align: center;
}
.logout-btn a {
    color: #dc2626;
    text-decoration: none;
    font-weight: 600;
}
@media (max-width: 768px) {
    .account-container {
        grid-template-columns: 1fr;
    }
    .account-sidebar {
        position: static;
        margin-bottom: 24px;
    }
    .account-content .info-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== LICENSE (MUA BẢN QUYỀN) ========== */
.license-form-wrapper {
    background: white;
    border-radius: 28px;
    padding: 32px;
    box-shadow: var(--shadow-sm);
}
.license-header {
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--gray-200);
}
.license-header h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 12px;
}
.license-form .form-row {
    margin-bottom: 28px;
}
.license-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}
.license-form label .required {
    color: #dc2626;
    margin-right: 4px;
}
.license-form input, .license-form select {
    width: 100%;
    padding: 12px 18px;
    border: 1.5px solid var(--gray-200);
    border-radius: 28px;
    font-family: inherit;
    font-size: 0.95rem;
}
.license-form input:focus, .license-form select:focus {
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.2);
}
.license-form input[readonly] {
    background: var(--gray-50);
    cursor: not-allowed;
}
.error-message {
    color: #dc2626;
    font-size: 0.8rem;
    margin-top: 6px;
}
.price-info {
    background: var(--primary-light);
    padding: 16px 20px;
    border-radius: 20px;
    margin: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.price-value {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary);
}
.btn-submit {
    background: var(--primary);
    color: white;
    border: none;
    padding: 14px 32px;
    border-radius: 40px;
    font-weight: 700;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition);
}
.btn-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}
.demo-note {
    background: #fef9e3;
    border-left: 4px solid #f59e0b;
    padding: 12px 16px;
    border-radius: 16px;
    margin-top: 20px;
    font-size: 0.8rem;
}
@media (max-width: 768px) {
    .license-form-wrapper {
        padding: 24px;
    }
    .price-info {
        flex-direction: column;
        align-items: flex-start;
    }
}