/* ========================================
   17Q.SI — Modern editorial design
   ======================================== */

:root {
    --color-bg: #ffffff;
    --color-surface: #f6f7f9;
    --color-text: #202633;
    --color-muted: #697386;
    --color-primary: #2457c5;
    --color-primary-hover: #1946a8;
    --color-border: #e3e7ee;
    --color-header: #ffffff;

    --container-width: 1180px;
    --radius: 10px;
    --shadow: 0 4px 18px rgba(20, 35, 60, 0.06);
    --shadow-hover: 0 8px 26px rgba(20, 35, 60, 0.10);
}

/* Reset and base */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    margin: 0;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: system-ui, -apple-system, BlinkMacSystemFont,
        "Segoe UI", sans-serif;
    font-size: 15px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 180ms ease;
}

a:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

button,
input,
textarea,
select {
    font: inherit;
}

button {
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

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

::selection {
    background: rgba(36, 87, 197, 0.15);
}

/* Header */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-header);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
}

.logo {
    color: var(--color-text);
    font-size: 26px;
    font-weight: 850;
    letter-spacing: -1.3px;
    white-space: nowrap;
}

.logo:hover {
    color: var(--color-text);
    text-decoration: none;
}

.logo span {
    color: var(--color-primary);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.site-nav a {
    position: relative;
    color: var(--color-text);
    font-size: 14px;
    font-weight: 650;
}

.site-nav a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.site-nav a[aria-current="page"] {
    color: var(--color-primary);
}

.menu-toggle {
    display: none;
    padding: 7px 11px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: #fff;
    color: var(--color-text);
}

.menu-toggle:hover {
    border-color: var(--color-primary);
}

/* Main layout */

.site-main {
    min-height: 60vh;
    padding-block: 28px 48px;
}

.page-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 30px;
    align-items: start;
}

.content-column {
    min-width: 0;
}

.section-heading {
    margin: 0 0 18px;
    font-size: clamp(24px, 2.6vw, 31px);
    line-height: 1.2;
    letter-spacing: -0.7px;
}

.section-intro {
    margin: -8px 0 20px;
    color: var(--color-muted);
}

/* ========================================
   Featured article
   Desktop: image left, title right
   Excerpt and link below both columns
   ======================================== */

.featured-article {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    min-width: 0;
    margin: 0 0 20px;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: #fff;
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

.featured-article:hover {
    border-color: #cbd5e5;
    box-shadow: var(--shadow);
}

/* Featured label */

.featured-article .section-label {
    margin: 0;
    color: var(--color-primary);
    font-size: 11px;
    font-weight: 750;
    line-height: 1.4;
    letter-spacing: 0.65px;
    text-transform: uppercase;
}

/* Image and heading row */

.featured-top {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
    gap: 16px;
    min-width: 0;
}

.featured-article .featured-image-link {
    display: block;
    width: 100%;
    min-width: 0;
    margin: 0;
    padding: 0;
    overflow: hidden;
    border-radius: 7px;
    background: var(--color-surface);
    line-height: 0;
}

.featured-article img.featured-image {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    max-height: 190px;
    margin: 0;
    object-fit: contain;
    object-position: center;
}

.featured-heading {
    min-width: 0;
}

.featured-article .featured-heading h1 {
    margin: 0 0 8px;
    padding: 0;
    color: var(--color-text);
    font-size: clamp(22px, 2.5vw, 30px);
    font-weight: 750;
    line-height: 1.25;
    letter-spacing: -0.5px;
    overflow-wrap: anywhere;
}

.featured-article .featured-heading h1 a {
    color: var(--color-text);
}

.featured-article .featured-heading h1 a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.featured-article .article-date {
    margin: 0;
    color: var(--color-muted);
    font-size: 12px;
    line-height: 1.5;
}

/* Description below the image and title */

.featured-article .article-excerpt {
    margin: 0;
    color: #505a6b;
    font-size: 14px;
    line-height: 1.55;
    overflow-wrap: anywhere;
}

.featured-article .read-more {
    display: inline-block;
    align-self: flex-start;
    margin: 0;
    font-size: 13px;
    font-weight: 750;
}

/* Compatibility with older featured markup */

.featured-image {
    min-width: 0;
    overflow: hidden;
    border-radius: 7px;
    background: var(--color-surface);
}

.featured-image img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 190px;
    object-fit: contain;
    object-position: center;
}

.featured-content {
    min-width: 0;
    padding: 0 2px;
}

.article-category {
    display: inline-block;
    margin-bottom: 4px;
    color: var(--color-primary);
    font-size: 11px;
    font-weight: 750;
    letter-spacing: 0.65px;
    text-transform: uppercase;
}

.featured-content h2 {
    margin: 0 0 6px;
    font-size: clamp(21px, 2.2vw, 27px);
    line-height: 1.2;
    letter-spacing: -0.5px;
    overflow-wrap: anywhere;
}

.featured-content h2 a,
.article-card h2 a {
    color: var(--color-text);
}

.featured-content h2 a:hover,
.article-card h2 a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 10px;
    margin-bottom: 6px;
    color: var(--color-muted);
    font-size: 12px;
}

.article-excerpt {
    margin: 0 0 8px;
    color: #505a6b;
    font-size: 14px;
    line-height: 1.5;
}

/* Article grid */

.articles-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
    gap: 16px;
}

.article-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: #fff;
    transition:
        box-shadow 180ms ease,
        border-color 180ms ease,
        transform 180ms ease;
}

.article-card:hover {
    border-color: #cbd5e5;
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

/* Article card images */

.article-card-image {
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 8px;
    background: var(--color-surface);
}

.article-card-image img {
    width: 100%;
    height: auto;
    max-height: 180px;
    object-fit: contain;
    object-position: center;
    transition: opacity 180ms ease;
}

.article-card:hover .article-card-image img {
    opacity: 0.94;
}

.article-card-content {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 16px;
}

.article-card h2 {
    margin: 0 0 8px;
    font-size: 18px;
    line-height: 1.35;
    letter-spacing: -0.2px;
    overflow-wrap: anywhere;
}

.article-card p {
    margin: 0 0 10px;
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.55;
}

.article-card .article-meta {
    margin-bottom: 9px;
}

.article-card .read-more {
    margin-top: auto;
}

/* Sidebar */

.sidebar {
    min-width: 0;
}

.sidebar-widget,
.sidebar-section {
    margin-bottom: 20px;
    padding: 18px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: #fff;
}

.sidebar-widget h2,
.sidebar-widget h3,
.sidebar-title {
    margin: 0 0 12px;
    font-size: 16px;
    line-height: 1.4;
    font-weight: 750;
}

.sidebar-section p,
.sidebar-widget p {
    margin: 0;
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.7;
}

.sidebar-list,
.sidebar-links {
    margin: 0;
    padding: 0;
    list-style: none;
}

.sidebar-list li,
.sidebar-links li {
    padding: 9px 0;
    border-top: 1px solid var(--color-border);
}

.sidebar-list li:first-child,
.sidebar-links li:first-child {
    padding-top: 0;
    border-top: 0;
}

.sidebar-list a,
.sidebar-links a {
    color: var(--color-text);
    font-size: 13px;
    font-weight: 600;
    overflow-wrap: anywhere;
}

.sidebar-list a:hover,
.sidebar-links a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

/* Individual article */

.article-page {
    width: min(100%, 780px);
    margin-inline: auto;
}

.article-header {
    margin-bottom: 22px;
}

.article-title {
    margin: 0 0 14px;
    font-size: clamp(30px, 4.5vw, 46px);
    line-height: 1.16;
    letter-spacing: -1.2px;
    overflow-wrap: anywhere;
}

.article-featured-image {
    margin: 18px 0 24px;
    text-align: center;
}

.article-featured-image img {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: 460px;
    margin-inline: auto;
    border-radius: var(--radius);
    object-fit: contain;
}

.article-cover {
    display: block;
    width: auto;
    max-width: 100%;
    max-height: 460px;
    height: auto;
    margin: 0 auto 24px;
    border-radius: var(--radius);
    object-fit: contain;
}

.article-body,
.article-content {
    font-size: 17px;
    line-height: 1.8;
    overflow-wrap: anywhere;
}

.article-body h2,
.article-content h2 {
    margin: 1.5em 0 0.6em;
    font-size: 26px;
    line-height: 1.3;
}

.article-body h3,
.article-content h3 {
    margin: 1.4em 0 0.5em;
    font-size: 21px;
    line-height: 1.35;
}

.article-body p,
.article-content p {
    margin: 0 0 1.1em;
}

.article-body img,
.article-content img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 22px auto;
    border-radius: 8px;
}

.article-body blockquote,
.article-content blockquote {
    margin: 24px 0;
    padding: 12px 20px;
    border-left: 4px solid var(--color-primary);
    background: var(--color-surface);
}

.article-body ul,
.article-body ol,
.article-content ul,
.article-content ol {
    padding-left: 24px;
}

.article-body pre,
.article-content pre {
    max-width: 100%;
    overflow-x: auto;
    padding: 16px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-surface);
    font-size: 14px;
}

.article-body code,
.article-content code {
    overflow-wrap: anywhere;
}

.article-body table,
.article-content table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
    border-collapse: collapse;
}

.article-body th,
.article-body td,
.article-content th,
.article-content td {
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    text-align: left;
}

/* Category and informational pages */

.category-page,
.terms-page {
    width: min(100%, 900px);
    margin-inline: auto;
}

.category-title,
.terms-title {
    margin: 0 0 14px;
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.2;
    letter-spacing: -0.8px;
    overflow-wrap: anywhere;
}

.category-description,
.terms-intro {
    margin: 0 0 24px;
    color: var(--color-muted);
    font-size: 16px;
}

.terms-content {
    font-size: 15px;
    line-height: 1.8;
    overflow-wrap: anywhere;
}

.terms-content h2 {
    margin: 1.8em 0 0.6em;
    font-size: 22px;
    line-height: 1.35;
}

.terms-content h3 {
    margin: 1.4em 0 0.5em;
    font-size: 18px;
    line-height: 1.4;
}

.terms-content p {
    margin: 0 0 1em;
}

.terms-content ul,
.terms-content ol {
    padding-left: 24px;
}

/* Buttons and messages */

.read-more {
    display: inline-block;
    font-size: 13px;
    font-weight: 750;
}

.read-more:hover {
    text-decoration: underline;
}

.pagination {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 26px;
}

.pagination a,
.pagination span {
    display: inline-block;
    padding: 7px 11px;
    border: 1px solid var(--color-border);
    border-radius: 7px;
    color: var(--color-text);
    font-size: 13px;
}

.pagination a:hover {
    border-color: var(--color-primary);
    text-decoration: none;
}

.pagination .current {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
}

.empty-state {
    padding: 24px;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius);
    color: var(--color-muted);
    text-align: center;
}

/* Footer */

.site-footer {
    margin-top: 48px;
    padding: 40px 0 20px;
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}

.footer-inner {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr)
        minmax(0, 1fr) minmax(0, 1.3fr);
    gap: 32px;
    padding-bottom: 32px;
}

.footer-brand,
.footer-column {
    min-width: 0;
}

.footer-logo {
    display: inline-block;
    color: var(--color-text);
    font-size: 25px;
    font-weight: 850;
    letter-spacing: -1px;
}

.footer-logo:hover {
    color: var(--color-text);
    text-decoration: none;
}

.footer-logo span {
    color: var(--color-primary);
}

.footer-tagline {
    max-width: 340px;
    margin: 12px 0 0;
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.75;
}

.footer-heading {
    margin: 0 0 14px;
    color: var(--color-text);
    font-size: 13px;
    font-weight: 750;
    line-height: 1.4;
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 11px;
}

.footer-links a {
    max-width: 100%;
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.55;
    overflow-wrap: anywhere;
}

.footer-links a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding-top: 18px;
    border-top: 1px solid var(--color-border);
}

.footer-copy,
.footer-note {
    margin: 0;
    color: var(--color-muted);
    font-size: 12px;
    line-height: 1.6;
}

/* Accessibility */

:focus-visible {
    outline: 3px solid #86a9ff;
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

/* Tablet */

@media (max-width: 900px) {
    .page-layout {
        grid-template-columns: minmax(0, 1fr) 230px;
        gap: 22px;
    }

    .featured-top {
        grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
        gap: 12px;
    }

    .featured-article img.featured-image {
        max-height: 170px;
    }

    .featured-article .featured-heading h1 {
        font-size: clamp(21px, 2.8vw, 27px);
    }

    .articles-grid {
        gap: 14px;
    }

    .footer-inner {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 28px 24px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }
}

/* Mobile */

@media (max-width: 700px) {
    .container {
        width: calc(100% - 28px);
    }

    .header-inner {
        min-height: 62px;
        flex-wrap: wrap;
        gap: 10px;
        padding-block: 9px;
    }

    .logo {
        font-size: 24px;
    }

    .menu-toggle {
        display: inline-block;
    }

    .site-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 7px 0;
    }

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

    .site-nav a {
        padding: 10px 4px;
        border-top: 1px solid var(--color-border);
    }

    .site-main {
        padding-block: 22px 36px;
    }

    .page-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: 24px;
    }

    .sidebar {
        display: none;
    }

    .section-heading {
        margin-bottom: 14px;
    }

    /* Mobile featured order: image, title, date, excerpt */

    .featured-article {
        gap: 8px;
        margin-bottom: 18px;
        padding: 10px;
    }

    .featured-top {
        grid-template-columns: minmax(0, 1fr);
        gap: 9px;
    }

    .featured-article img.featured-image {
        max-height: 180px;
    }

    .featured-article .featured-heading h1 {
        margin-bottom: 5px;
        font-size: 23px;
    }

    .featured-article .article-excerpt {
        font-size: 13px;
        line-height: 1.5;
    }

    .articles-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }

    .article-card-image {
        padding: 5px;
    }

    .article-card-image img {
        max-height: 135px;
    }

    .article-card-content {
        padding: 11px;
    }

    .article-card h2 {
        font-size: 15px;
        line-height: 1.35;
    }

    .article-card p {
        font-size: 12px;
    }

    .article-title {
        font-size: 32px;
        letter-spacing: -0.7px;
    }

    .article-body,
    .article-content {
        font-size: 16px;
    }

    .article-body h2,
    .article-content h2 {
        font-size: 23px;
    }

    .terms-content {
        font-size: 15px;
    }

    .terms-content h2 {
        font-size: 21px;
    }

    .footer-inner {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 26px 20px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }
}

/* Small mobile screens */

@media (max-width: 420px) {
    .footer-inner {
        grid-template-columns: minmax(0, 1fr);
    }

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

@media (max-width: 380px) {
    .articles-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .article-card-image img {
        max-height: 190px;
    }

    .article-title {
        font-size: 29px;
    }
}