/* ═══════════════════════════════════════════════════════════
   BASE.CSS — meble-w-dobrej-cenie.pl
   Core styles: reset, layout, components, responsive
   Design: Newspaper NFT Pro replica
   ═══════════════════════════════════════════════════════════ */

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a, a:visited, a:link { color: inherit; text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-accent); text-decoration: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 900;
    line-height: 1.15;
    color: var(--color-heading);
}

/* ─── LAYOUT ─── */
.stb-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}
.stb-layout {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--gap);
    margin-top: 48px;
    margin-bottom: 48px;
}
.stb-layout--page {
    display: block;
    margin-top: 48px;
    margin-bottom: 48px;
}
.stb-main-content { min-height: 60vh; }

/* ─── HEADER (1 rząd — jak NFT Pro) ─── */
.stb-header {
    background: var(--color-header-bg);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    z-index: 100;
}
.stb-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    gap: 24px;
}
.stb-logo { flex-shrink: 0; }
.stb-logo .custom-logo { max-height: 45px; width: auto; }
.stb-logo-text {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 900;
    color: var(--color-heading);
    text-transform: uppercase;
    letter-spacing: -0.5px;
    white-space: nowrap;
}
.stb-logo-text:hover { color: var(--color-heading); }

/* ─── NAVBAR ─── */
.stb-navbar {
    display: flex;
    align-items: center;
    gap: 8px;
}
.stb-nav-desktop { display: block; }
.stb-nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
}
.stb-nav-list li a {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 900;
    text-transform: uppercase;
    color: var(--color-header-text);
    padding: 8px 14px;
    letter-spacing: 0.3px;
    transition: color 0.2s;
}
.stb-nav-list li a:hover { color: var(--color-accent); }
.stb-search-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--color-header-text);
    display: flex;
    align-items: center;
}
.stb-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--color-header-text);
}

/* ─── MOBILE MENU ─── */
.stb-mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
}
.stb-mobile-overlay.active { display: block; }
.stb-mobile-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 280px;
    height: 100vh;
    background: #fff;
    z-index: 999;
    transition: right 0.3s;
    padding: 24px;
    overflow-y: auto;
}
.stb-mobile-menu.active { right: 0; }
.stb-mobile-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.stb-mobile-nav-list {
    margin-top: 48px;
}
.stb-mobile-nav-list li { border-bottom: 1px solid var(--color-border); }
.stb-mobile-nav-list li a {
    display: block;
    padding: 14px 0;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 15px;
    text-transform: uppercase;
}

/* ─── SEARCH OVERLAY ─── */
.stb-search-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.92);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.stb-search-overlay.active { display: flex; }
.stb-search-overlay-inner {
    width: 90%;
    max-width: 600px;
    position: relative;
}
.stb-search-overlay input {
    width: 100%;
    padding: 16px 24px;
    font-size: 24px;
    font-family: var(--font-heading);
    border: none;
    border-bottom: 3px solid #fff;
    background: transparent;
    color: #fff;
    outline: none;
}
.stb-search-overlay input::placeholder { color: rgba(255,255,255,0.5); }
.stb-search-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    cursor: pointer;
    color: #fff;
    padding: 8px;
}

/* ─── HERO SECTION (NFT Pro style) ─── */
.stb-hero {
    padding: 32px 0 0;
}
.stb-hero-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 24px;
    min-height: 450px;
}
.stb-hero-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    grid-row: 1;
}
.stb-hero-main-link { overflow: hidden; }
.stb-hero-main-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.stb-hero-main-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 32px 40px;
}
.stb-hero-main-title {
    font-size: 42px;
    font-weight: 900;
    line-height: 1.05;
    margin-top: 16px;
}
.stb-hero-main-title a { color: var(--color-heading); }
.stb-hero-main-title a:hover { color: var(--color-accent); }

.stb-hero-side {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.stb-hero-side-item {
    display: flex;
    gap: 0;
    flex: 1;
}
.stb-hero-side-link {
    flex-shrink: 0;
    width: 50%;
    overflow: hidden;
}
.stb-hero-side-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.stb-hero-side-content {
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.stb-hero-side-title {
    font-size: 20px;
    font-weight: 900;
    line-height: 1.2;
    margin-top: 8px;
}
.stb-hero-side-title a { color: var(--color-heading); }
.stb-hero-side-title a:hover { color: var(--color-accent); }

/* ─── CATEGORY BADGE (NFT Pro style) ─── */
.stb-category-badge {
    display: inline-block;
    background: var(--color-badge-bg) !important;
    color: var(--color-badge-text) !important;
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    padding: 6px 10px;
    letter-spacing: 0.5px;
    line-height: 1;
    text-decoration: none !important;
}
.stb-category-badge:hover { background: var(--color-accent) !important; color: #fff !important; }
.stb-category-badge--sm { font-size: 10px; padding: 4px 8px; }

/* ─── 5 CARDS GRID ─── */
.stb-five-cards {
    padding: 40px 0;
}
.stb-five-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}
.stb-five-card-link { overflow: hidden; display: block; margin-bottom: 12px; }
.stb-five-card-img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    transition: transform 0.3s;
}
.stb-five-card:hover .stb-five-card-img { transform: scale(1.05); }
.stb-five-card .stb-category-badge { margin-bottom: 8px; }
.stb-five-card-title {
    font-size: 18px;
    font-weight: 900;
    line-height: 1.2;
}
.stb-five-card-title a { color: var(--color-heading); }
.stb-five-card-title a:hover { color: var(--color-accent); }

/* ─── LATEST LIST (numbered articles) ─── */
.stb-latest-list {
    padding: 48px 0;
    border-bottom: 1px solid var(--color-border);
}
.stb-section-heading {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 24px;
}
.stb-latest-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}
.stb-latest-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
    text-decoration: none;
}
.stb-latest-item:hover .stb-latest-title { color: var(--color-accent); text-decoration: underline; }
.stb-latest-num {
    font-family: var(--font-heading);
    font-size: 36px;
    font-weight: 900;
    color: var(--color-border);
    line-height: 1;
    flex-shrink: 0;
    min-width: 40px;
}
.stb-latest-cat {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-badge-text);
    background: var(--color-badge-bg);
    padding: 3px 6px;
    letter-spacing: 0.5px;
    line-height: 1;
}
.stb-latest-title {
    font-size: 16px;
    font-weight: 900;
    line-height: 1.3;
    margin-top: 4px;
    transition: color 0.2s;
}

/* ─── SECTION LINK ─── */
.stb-cat-section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 24px;
}
.stb-section-link {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-accent);
    letter-spacing: 0.5px;
}
.stb-section-link:hover { text-decoration: none; opacity: 0.8; }

/* ─── CATEGORY SECTION (alt background) ─── */
.stb-cat-section {
    padding: 48px 0;
}
.stb-cat-section--alt {
    background: var(--color-section-alt-bg);
    padding: 48px 0;
}

/* ─── CARDS GRID ─── */
.stb-cards-grid {
    display: grid;
    gap: 24px;
}
.stb-cards-grid--3 { grid-template-columns: repeat(3, 1fr); }
.stb-post-card { background: var(--color-card-bg); }
.stb-card-thumb-link { display: block; overflow: hidden; }
.stb-card-thumb {
    width: 100%;
    aspect-ratio: 3/2;
    object-fit: cover;
    transition: transform 0.3s;
}
.stb-post-card:hover .stb-card-thumb { transform: scale(1.05); }
.stb-card-body { padding: 16px 12px; }
.stb-card-title {
    font-size: 18px;
    font-weight: 900;
    line-height: 1.25;
    margin-top: 8px;
}
.stb-card-title a { color: var(--color-heading); }
.stb-card-title a:hover { color: var(--color-accent); }
.stb-card-meta {
    font-family: var(--font-meta);
    font-size: 12px;
    color: var(--color-text-secondary);
    margin-top: 8px;
}

/* ─── CB ADS SECTIONS ─── */
.stb-cb-billboard { padding: 32px 0; }
.stb-cb-inline { margin: 1.5rem 0; }

/* ─── CAT BLOCKS (in sidebar layout) ─── */
.stb-cat-block { margin-bottom: 48px; }
.stb-list-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}
.stb-list-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    text-decoration: none;
}
.stb-list-item:hover .stb-list-title { color: var(--color-accent); text-decoration: underline; }
.stb-list-thumb {
    width: 80px;
    height: 60px;
    object-fit: cover;
    flex-shrink: 0;
}
.stb-list-cat {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-badge-text);
    background: var(--color-badge-bg);
    padding: 3px 6px;
    letter-spacing: 0.5px;
    line-height: 1;
}
.stb-list-title {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 900;
    line-height: 1.3;
    margin-top: 2px;
    transition: color 0.2s;
}
.stb-list-date {
    font-family: var(--font-meta);
    font-size: 11px;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

/* ─── FEATURED POST ─── */
.stb-featured-post {
    margin-top: 24px;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 24px;
}
.stb-featured-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.stb-featured-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 16px 0;
}
.stb-featured-title {
    font-size: 24px;
    font-weight: 900;
    line-height: 1.2;
    margin-top: 12px;
}
.stb-featured-title a { color: var(--color-heading); }
.stb-featured-title a:hover { color: var(--color-accent); }
.stb-featured-excerpt {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-top: 12px;
    line-height: 1.5;
}

/* ─── MIXED GRID (list + big post) ─── */
.stb-mixed-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.stb-mixed-big-link { display: block; overflow: hidden; }
.stb-mixed-big-img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.stb-mixed-big-body { padding: 16px 0; }
.stb-mixed-big-title {
    font-size: 22px;
    font-weight: 900;
    line-height: 1.2;
    margin-top: 12px;
}
.stb-mixed-big-title a { color: var(--color-heading); }
.stb-mixed-big-title a:hover { color: var(--color-accent); }

/* ─── BREADCRUMBS ─── */
.stb-breadcrumbs-bar {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 5px;
}
.stb-breadcrumbs {
    font-family: var(--font-meta);
    font-size: 13px;
    color: var(--color-text-secondary);
    padding: 12px 0;
}
.stb-breadcrumbs a { color: var(--color-text-secondary); }
.stb-breadcrumbs a:hover { color: var(--color-accent); }
.stb-breadcrumb-sep { margin: 0 8px; }

/* ─── ARCHIVE HEADER ─── */
.stb-archive-header {
    background: var(--color-heading);
    padding: 40px 0;
    color: #fff;
}
.stb-archive-header .stb-breadcrumbs { color: rgba(255,255,255,0.7); }
.stb-archive-header .stb-breadcrumbs a { color: rgba(255,255,255,0.7); }
.stb-archive-label {
    font-family: var(--font-meta);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-accent);
    display: block;
    margin-bottom: 8px;
}
.stb-archive-title {
    font-size: 36px;
    font-weight: 900;
    color: #fff;
}
.stb-archive-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    margin-top: 8px;
    max-width: 600px;
}

/* ─── ARTICLE ─── */
.stb-article { margin-bottom: 48px; }
.stb-article-header { margin-bottom: 24px; }
.stb-article-title {
    font-size: 36px;
    font-weight: 900;
    line-height: 1.15;
    margin-top: 12px;
}
.stb-article-meta {
    font-family: var(--font-meta);
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-top: 12px;
}
.stb-separator { margin: 0 6px; }
.stb-article-featured { margin-bottom: 24px; }
.stb-article-img { width: 100%; border-radius: var(--radius); }
.stb-article-content {
    font-size: 16px;
    line-height: 1.75;
}
.stb-article-content h2 {
    font-size: 26px;
    margin: 32px 0 16px;
}
.stb-article-content h3 {
    font-size: 20px;
    margin: 24px 0 12px;
}
.stb-article-content p { margin-bottom: 16px; }
.stb-article-content ul, .stb-article-content ol {
    margin: 16px 0;
    padding-left: 24px;
}
.stb-article-content ul { list-style: disc; }
.stb-article-content ol { list-style: decimal; }
.stb-article-content li { margin-bottom: 8px; }
.stb-article-content blockquote {
    border-left: 4px solid var(--color-accent);
    padding: 16px 24px;
    margin: 24px 0;
    font-style: italic;
    background: var(--color-section-alt-bg);
}
.stb-article-content img {
    border-radius: var(--radius);
    margin: 16px 0;
}
.stb-article-content a { color: var(--color-accent); text-decoration: none; }
.stb-article-content a:hover { color: var(--color-accent-hover); text-decoration: underline; }

/* ─── TAGS ─── */
.stb-tags { margin: 24px 0; display: flex; flex-wrap: wrap; gap: 8px; }
.stb-tag {
    font-family: var(--font-meta);
    font-size: 12px;
    padding: 6px 12px;
    background: var(--color-section-alt-bg);
    border: 1px solid var(--color-border);
    transition: all 0.2s;
}
.stb-tag:hover { background: var(--color-heading); color: #fff; }

/* ─── SHARE ─── */
.stb-share {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin: 24px 0;
}
.stb-share-label {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
}
.stb-share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--color-heading);
    color: #fff;
    transition: background 0.2s;
}
.stb-share-btn:hover { background: var(--color-accent); color: #fff; }

/* ─── POST NAVIGATION ─── */
.stb-post-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 32px 0;
}
.stb-post-nav-link {
    padding: 16px;
    border: 1px solid var(--color-border);
    transition: border-color 0.2s;
}
.stb-post-nav-link:hover { border-color: var(--color-accent); }
.stb-post-nav-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    display: block;
    margin-bottom: 4px;
}
.stb-post-nav-title {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 900;
    line-height: 1.3;
}
.stb-post-nav-next { text-align: right; }

/* ─── RELATED POSTS ─── */
.stb-related { margin: 48px 0; }
.stb-section-title {
    font-size: 22px;
    font-weight: 900;
    text-transform: uppercase;
    margin-bottom: 24px;
}
.stb-card { background: var(--color-card-bg); }
.stb-card-image-link { display: block; overflow: hidden; }
.stb-card-image {
    width: 100%;
    aspect-ratio: 3/2;
    object-fit: cover;
    transition: transform 0.3s;
}
.stb-card:hover .stb-card-image { transform: scale(1.05); }
.stb-card-content { padding: 12px 0; }
.stb-card-content .stb-card-title {
    font-size: 16px;
    font-weight: 900;
    line-height: 1.3;
    margin-top: 8px;
}
.stb-card-date {
    font-family: var(--font-meta);
    font-size: 12px;
    color: var(--color-text-secondary);
    margin-top: 4px;
    display: block;
}

/* ─── SIDEBAR ─── */
.stb-sidebar { position: static; }

/* Tabs */
.stb-widget { margin-bottom: 32px; }
.stb-widget-title {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}
.stb-tab-nav {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 16px;
}
.stb-tab-link {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    padding: 10px 16px;
    border: none;
    border-top: 3px solid transparent;
    transition: all 0.2s;
    cursor: pointer;
    background: none;
    color: var(--color-text-secondary);
}
.stb-tab-link.stb-tab-active {
    border-top-color: var(--color-heading);
    color: var(--color-heading);
}
.stb-tab-content { display: none; }
.stb-tab-content.stb-tab-active { display: block; }

.stb-tab-item {
    display: flex;
    gap: 12px;
    padding: 10px 0;
}
.stb-tab-item--numbered { position: relative; }
.stb-tab-number {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 900;
    color: var(--color-border);
    line-height: 1;
    flex-shrink: 0;
    min-width: 28px;
}
.stb-tab-thumb { flex-shrink: 0; }
.stb-tab-thumb img { width: 94px; height: 70px; object-fit: cover; }
.stb-tab-info { flex: 1; min-width: 0; }
.stb-tab-date {
    font-family: var(--font-meta);
    font-size: 11px;
    color: var(--color-text-secondary);
}
.stb-tab-cat {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-left: 4px;
}
.stb-tab-title {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 900;
    line-height: 1.3;
    margin-top: 4px;
}
.stb-tab-title a { color: var(--color-heading); }
.stb-tab-title a:hover { color: var(--color-accent); }

/* Categories */
.stb-category-list li {
    padding: 2px 0;
}
.stb-category-list li a {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    font-size: 14px;
    font-weight: 600;
}
.stb-cat-count {
    color: var(--color-text-secondary);
    font-weight: 400;
    font-size: 13px;
}

/* ─── TOC ─── */
.stb-toc {
    background: var(--color-section-alt-bg);
    border: 1px solid var(--color-border);
    padding: 20px 24px;
    margin-bottom: 24px;
}
.stb-toc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.stb-toc-title {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 900;
    text-transform: uppercase;
}
.stb-toc-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    transition: transform 0.3s;
}
.stb-toc.collapsed .stb-toc-toggle { transform: rotate(-90deg); }
.stb-toc.collapsed .stb-toc-list { display: none; }
.stb-toc-list {
    padding-left: 20px;
    list-style: decimal;
}
.stb-toc-list li {
    margin-bottom: 6px;
    font-size: 14px;
}
.stb-toc-list li a { color: var(--color-text); }
.stb-toc-list li a:hover { color: var(--color-accent); }
.stb-toc-sub { padding-left: 16px; }

/* ─── PAGINATION ─── */
.stb-pagination {
    margin: 32px 0;
    display: flex;
    justify-content: center;
    gap: 4px;
}
.stb-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
    border: 1px solid var(--color-border);
    transition: all 0.2s;
}
.stb-pagination .page-numbers.current {
    background: var(--color-heading);
    color: #fff;
    border-color: var(--color-heading);
}
.stb-pagination .page-numbers:hover:not(.current) {
    background: var(--color-section-alt-bg);
}

/* ─── FOOTER ─── */
.stb-footer {
    background: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: 48px 0 0;
    margin-top: 48px;
}
.stb-footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.stb-footer-logo-text {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 900;
    color: #fff;
    text-transform: uppercase;
}
.stb-footer-logo-text:hover { color: #fff; }
.stb-newsletter-form {
    display: flex;
    gap: 0;
}
.stb-newsletter-form input {
    padding: 10px 16px;
    font-size: 14px;
    border: 1px solid rgba(255,255,255,0.2);
    background: transparent;
    color: #fff;
    min-width: 250px;
}
.stb-newsletter-form input::placeholder { color: rgba(255,255,255,0.4); }
.stb-newsletter-btn {
    padding: 10px 20px;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    background: #fff;
    color: var(--color-footer-bg);
    border: none;
    cursor: pointer;
    transition: background 0.2s;
}
.stb-newsletter-btn:hover { background: var(--color-accent); color: #fff; }

.stb-footer-columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    padding: 32px 0;
}
.stb-footer-col-title {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.stb-footer-col ul li { margin-bottom: 8px; }
.stb-footer-col ul li a {
    font-size: 14px;
    color: var(--color-footer-text);
    transition: color 0.2s;
}
.stb-footer-col ul li a:hover { color: #fff; }
.stb-footer-social li a {
    display: flex;
    align-items: center;
    gap: 8px;
}

.stb-footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
}

/* ─── BACK TO TOP ─── */
.stb-back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    background: var(--color-heading);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 90;
}
.stb-back-to-top.visible { opacity: 1; visibility: visible; }
.stb-back-to-top:hover { background: var(--color-accent); }

/* ─── 404 ─── */
.stb-404 { text-align: center; padding: 80px 0; }
.stb-404-title {
    font-size: 120px;
    font-weight: 900;
    line-height: 1;
    color: var(--color-border);
}
.stb-404-text { font-size: 18px; margin-top: 16px; color: var(--color-text-secondary); }
.stb-404-btn {
    display: inline-block;
    margin-top: 24px;
    padding: 12px 32px;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 13px;
    background: var(--color-heading);
    color: #fff;
    transition: background 0.2s;
}
.stb-404-btn:hover { background: var(--color-accent); color: #fff; }

/* ─── CONTACT FORM ─── */
.stb-contact-form { max-width: 600px; margin-top: 24px; }
.stb-form-group { margin-bottom: 20px; }
.stb-form-group label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 6px;
}
.stb-form-group .required { color: #e74c3c; }
.stb-form-group input,
.stb-form-group textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-family: var(--font-body);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    transition: border-color 0.2s;
}
.stb-form-group input:focus,
.stb-form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}
.stb-form-submit {
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    background: var(--color-heading);
    color: #fff;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
}
.stb-form-submit:hover { background: var(--color-accent); }
.stb-form-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.stb-form-status {
    margin-top: 16px;
    padding: 12px;
    font-size: 14px;
    display: none;
}
.stb-form-status.success {
    display: block;
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.stb-form-status.error {
    display: block;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* ─── NO CONTENT ─── */
.stb-no-content {
    text-align: center;
    padding: 60px 0;
}
.stb-no-content h2 {
    font-size: 28px;
    margin-bottom: 12px;
}
.stb-no-content a { color: var(--color-accent); text-decoration: underline; }

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
    .stb-layout { grid-template-columns: 1fr; }
    .stb-sidebar { margin-top: 32px; }
    .stb-hero-grid { grid-template-columns: 1fr; min-height: auto; }
    .stb-hero-side { flex-direction: row; }
    .stb-hero-side-item { flex-direction: column; }
    .stb-hero-side-link { width: 100%; }
    .stb-five-grid { grid-template-columns: repeat(3, 1fr); }
    .stb-cards-grid--3 { grid-template-columns: repeat(2, 1fr); }
    .stb-featured-post { grid-template-columns: 1fr; }
    .stb-mixed-grid { grid-template-columns: 1fr; }
    .stb-footer-columns { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .stb-nav-desktop { display: none; }
    .stb-hamburger { display: flex; }
    .stb-hero-main { grid-template-columns: 1fr; }
    .stb-hero-main-title { font-size: 30px; }
    .stb-hero-main-content { padding: 20px; }
    .stb-five-grid { grid-template-columns: repeat(2, 1fr); }
    .stb-latest-grid { grid-template-columns: 1fr; }
    .stb-list-grid { grid-template-columns: 1fr; }
    .stb-post-nav { grid-template-columns: 1fr; }
    .stb-article-title { font-size: 28px; }
    .stb-archive-title { font-size: 28px; }
    .stb-footer-top { flex-direction: column; gap: 16px; }
    .stb-newsletter-form input { min-width: 200px; }
}

@media (max-width: 480px) {
    .stb-container { padding: 0 16px; }
    .stb-hero-main-title { font-size: 24px; }
    .stb-hero-side-title { font-size: 16px; }
    .stb-five-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .stb-five-card-title { font-size: 15px; }
    .stb-section-heading { font-size: 22px; }
    .stb-cards-grid--3 { grid-template-columns: 1fr; }
    .stb-footer-columns { grid-template-columns: 1fr; }
    .stb-404-title { font-size: 80px; }
}