* {
    box-sizing: border-box;
}

:root {
    --brand: #2563eb;
    --brand-dark: #1d4ed8;
    --navy: #0f172a;
    --text: #172033;
    --muted: #64748b;
    --soft: #f6f8fc;
    --border: #e5e7eb;
    --white: #ffffff;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Tahoma, Arial, sans-serif;
    background: #fff;
    color: var(--text);
    line-height: 1.8;
}

a {
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: min(1160px, calc(100% - 36px));
    margin-inline: auto;
}

.skip-link {
    position: absolute;
    top: -100px;
    right: 20px;
    z-index: 9999;
    background: #fff;
    padding: 8px 12px;
}

.skip-link:focus {
    top: 10px;
}

.site-header {
    background: #fff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 12px rgba(15, 23, 42, .04);
}

.header-row {
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 11px;
    text-decoration: none;
    flex-shrink: 0;
}

.brand-mark {
    width: 44px;
    height: 44px;
    border-radius: 13px;
    display: grid;
    place-items: center;
    background: #2563eb;
    color: #fff;
}

.brand-mark svg {
    width: 27px;
    height: 27px;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.brand-text strong {
    color: #0f172a;
    font-size: 18px;
    font-weight: 800;
}

.brand-text small {
    color: #64748b;
    font-size: 11px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 7px;
}

.main-nav a {
    text-decoration: none;
    color: #334155;
    font-size: 14px;
    font-weight: 700;
    padding: 9px 12px;
    border-radius: 10px;
}

.main-nav a:hover {
    background: #f1f5f9;
    color: var(--brand);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 42px;
    padding: 9px;
    border: 1px solid var(--border);
    background: #fff;
    border-radius: 10px;
}

.nav-toggle span {
    display: block;
    height: 2px;
    background: #334155;
    margin: 5px 0;
    border-radius: 5px;
}

.blog-hero {
    padding: 70px 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(37, 99, 235, .16), transparent 35%),
        linear-gradient(180deg, #f7faff 0%, #fff 100%);
    text-align: center;
}

.small-hero {
    padding: 48px 0;
}

.eyebrow,
.section-tag {
    display: inline-block;
    color: var(--brand);
    font-weight: 800;
    font-size: 13px;
    margin-bottom: 8px;
}

.blog-hero h1 {
    font-size: clamp(30px, 5vw, 50px);
    margin: 0 0 12px;
    line-height: 1.3;
}

.blog-hero p {
    max-width: 720px;
    margin: auto;
    color: var(--muted);
    font-size: 17px;
}

.section {
    padding: 56px 0;
}

.layout-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 290px;
    gap: 34px;
    align-items: start;
}

.section-heading h2 {
    margin: 0;
}

.inline-heading {
    margin-bottom: 24px;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.post-card {
    border: 1px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 8px 24px rgba(15, 23, 42, .04);
    transition: transform .2s ease, box-shadow .2s ease;
}

.post-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 32px rgba(15, 23, 42, .08);
}

.post-image {
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #eef2f7;
}

.post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-card-body {
    padding: 20px;
}

.post-meta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    color: var(--muted);
    font-size: 12px;
    margin-bottom: 8px;
}

.post-meta a {
    color: var(--brand);
    text-decoration: none;
    font-weight: 700;
}

.post-card h2 {
    font-size: 20px;
    line-height: 1.55;
    margin: 0 0 9px;
}

.post-card h2 a {
    text-decoration: none;
}

.post-card p {
    color: var(--muted);
    font-size: 14px;
    margin: 0 0 14px;
}

.read-more {
    color: var(--brand);
    text-decoration: none;
    font-weight: 800;
    font-size: 13px;
}

.sidebar {
    position: sticky;
    top: 94px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.sidebar-card {
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    background: #fff;
}

.sidebar-card h3 {
    margin: 0 0 14px;
    font-size: 17px;
}

.category-list {
    display: flex;
    flex-direction: column;
}

.category-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid #edf0f4;
    text-decoration: none;
    color: #334155;
    font-size: 14px;
}

.category-list a:last-child {
    border-bottom: 0;
}

.category-list small {
    background: #eff6ff;
    color: var(--brand);
    border-radius: 99px;
    padding: 1px 8px;
}

.pagination {
    margin-top: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
}

.pagination a,
.pagination span {
    padding: 8px 13px;
    border: 1px solid var(--border);
    border-radius: 10px;
    text-decoration: none;
    font-size: 13px;
}

.article-section {
    background: #f8fafc;
}

.article-container {
    max-width: 900px;
}

.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--muted);
    font-size: 13px;
    margin-bottom: 16px;
}

.breadcrumbs a {
    color: var(--brand);
    text-decoration: none;
}

.article-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
}

.article-header {
    padding: 34px 38px 24px;
}

.article-category {
    color: var(--brand);
    text-decoration: none;
    font-weight: 800;
    font-size: 13px;
}

.article-header h1 {
    font-size: clamp(28px, 5vw, 44px);
    line-height: 1.4;
    margin: 10px 0 12px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    color: var(--muted);
    font-size: 13px;
}

.article-image {
    margin: 0;
}

.article-image img {
    width: 100%;
    display: block;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.article-content {
    padding: 32px 38px 45px;
    font-size: 17px;
}

.article-content h2,
.article-content h3 {
    line-height: 1.5;
    margin-top: 32px;
}

.article-content p {
    margin: 0 0 18px;
}

.article-content a {
    color: var(--brand);
}

.article-content img {
    border-radius: 14px;
}

.article-content blockquote {
    margin: 22px 0;
    padding: 12px 18px;
    background: #f7f9fc;
    border-right: 4px solid var(--brand);
}

.empty-state {
    padding: 60px 20px;
    border: 1px dashed #cbd5e1;
    border-radius: 18px;
    text-align: center;
    background: #fff;
}

.error-code {
    display: block;
    font-size: 60px;
    font-weight: 900;
    color: var(--brand);
}

.btn-primary {
    display: inline-block;
    background: var(--brand);
    color: #fff;
    text-decoration: none;
    padding: 10px 18px;
    border-radius: 10px;
}

.site-footer {
    background: #0f172a;
    color: #e5e7eb;
    padding: 48px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.35fr .8fr 1fr;
    gap: 48px;
    padding-bottom: 38px;
}

.footer-about {
    max-width: 390px;
}

.footer-brand {
    margin-bottom: 15px;
}

.footer-brand .brand-text strong {
    color: #fff;
}

.footer-brand .brand-text small {
    color: #94a3b8;
}

.footer-description {
    color: #aeb8c8;
    font-size: 14px;
}

.footer-column h3 {
    color: #fff;
    font-size: 16px;
    margin: 4px 0 16px;
}

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

.footer-links-list a {
    color: #b8c1d1;
    text-decoration: none;
    font-size: 14px;
}

.footer-links-list a:hover {
    color: #60a5fa;
}

.footer-bottom {
    min-height: 68px;
    border-top: 1px solid rgba(148, 163, 184, .18);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
}

.footer-bottom p {
    color: #94a3b8;
    font-size: 13px;
}

.footer-bottom a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 13px;
}

/* Admin */
.admin-body {
    background: #f3f6fa;
    min-height: 100vh;
}

.admin-login-card {
    width: min(450px, calc(100% - 30px));
    margin: 70px auto;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 28px;
    box-shadow: 0 14px 40px rgba(15, 23, 42, .08);
}

.admin-logo {
    color: var(--brand);
    text-decoration: none;
    font-weight: 900;
}

.admin-login-card h1 {
    margin: 10px 0 22px;
    font-size: 25px;
}

.admin-form,
.admin-login-card form {
    display: flex;
    flex-direction: column;
    gap: 17px;
}

.admin-form label,
.admin-login-card label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-weight: 700;
    font-size: 14px;
}

.admin-form input,
.admin-form textarea,
.admin-form select,
.admin-login-card input {
    width: 100%;
    border: 1px solid #d8dee8;
    border-radius: 10px;
    padding: 10px 12px;
    font: inherit;
    background: #fff;
}

.admin-form textarea {
    resize: vertical;
}

.content-editor {
    font-family: Tahoma, Arial, sans-serif;
    line-height: 1.8;
}

.admin-form small {
    color: var(--muted);
    font-weight: 400;
}

.admin-btn,
.secondary-btn {
    border: 0;
    border-radius: 10px;
    padding: 10px 16px;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
    text-decoration: none;
}

.admin-btn {
    background: var(--brand);
    color: #fff;
}

.secondary-btn {
    background: #e8edf5;
    color: #334155;
}

.inline-button {
    display: inline-block;
    width: fit-content;
}

.back-link {
    display: block;
    margin-top: 16px;
    color: var(--muted);
    font-size: 13px;
}

.alert {
    padding: 11px 13px;
    border-radius: 10px;
    margin-bottom: 16px;
}

.alert.error {
    background: #fff1f2;
    color: #be123c;
}

.alert.success {
    background: #ecfdf5;
    color: #047857;
}

.admin-topbar {
    background: #0f172a;
    color: #fff;
    padding: 14px max(20px, calc((100% - 1160px) / 2));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.admin-topbar div {
    display: flex;
    flex-direction: column;
}

.admin-topbar small {
    color: #94a3b8;
}

.admin-topbar nav {
    display: flex;
    gap: 14px;
}

.admin-topbar a {
    color: #dbe5f3;
    text-decoration: none;
    font-size: 13px;
}

.admin-container {
    width: min(1160px, calc(100% - 34px));
    margin: 32px auto 70px;
}

.admin-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    margin-bottom: 20px;
}

.admin-heading h1 {
    margin: 0;
}

.admin-heading p {
    margin: 3px 0 0;
    color: var(--muted);
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.admin-stats div {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px;
}

.admin-stats strong {
    display: block;
    font-size: 26px;
}

.admin-stats span {
    color: var(--muted);
    font-size: 13px;
}

.admin-table-wrap {
    overflow: auto;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.admin-table th,
.admin-table td {
    text-align: right;
    padding: 13px 14px;
    border-bottom: 1px solid #edf0f4;
}

.admin-table th {
    background: #f8fafc;
    color: #475569;
    font-size: 13px;
}

.admin-table td {
    font-size: 14px;
}

.admin-table td small {
    display: block;
    color: var(--muted);
}

.status {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 99px;
    font-size: 12px;
}

.status.published {
    background: #dcfce7;
    color: #166534;
}

.status.draft {
    background: #f1f5f9;
    color: #475569;
}

.actions {
    display: flex;
    gap: 9px;
    align-items: center;
}

.actions a,
.actions button {
    font: inherit;
    font-size: 12px;
    background: none;
    border: 0;
    padding: 0;
    color: var(--brand);
    cursor: pointer;
    text-decoration: none;
}

.actions button {
    color: #dc2626;
}

.form-grid.two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.seo-box,
.admin-panel {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
}

.seo-box h2,
.admin-panel h2 {
    margin-top: 0;
}

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

.admin-two-column {
    display: grid;
    grid-template-columns: .7fr 1.3fr;
    gap: 20px;
}

.category-admin-list {
    display: flex;
    flex-direction: column;
}

.category-admin-list > div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    padding: 12px 0;
    border-bottom: 1px solid #edf0f4;
}

.category-admin-list small {
    display: block;
    color: var(--muted);
}

.delete-btn {
    border: 0;
    background: #fff1f2;
    color: #be123c;
    padding: 6px 10px;
    border-radius: 8px;
    cursor: pointer;
}

@media (max-width: 900px) {
    .layout-grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-about {
        grid-column: 1 / -1;
        max-width: 620px;
    }

    .nav-toggle {
        display: block;
    }

    .header-row {
        flex-wrap: wrap;
        padding: 10px 0;
    }

    .main-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        border-top: 1px solid var(--border);
        padding-top: 8px;
    }

    .main-nav.is-open {
        display: flex;
    }

    .main-nav a {
        width: 100%;
    }
}

@media (max-width: 700px) {
    .posts-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-about {
        grid-column: auto;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        padding: 18px 0;
    }

    .article-header,
    .article-content {
        padding-right: 20px;
        padding-left: 20px;
    }

    .form-grid.two,
    .admin-two-column,
    .admin-stats {
        grid-template-columns: 1fr;
    }

    .admin-heading,
    .admin-topbar {
        align-items: flex-start;
        flex-direction: column;
    }
}