/* ==========================================================================
   BASE.CSS — Core styles for meble-tapicerowane24
   Design: InvestNews | Prefix: stb-
   Author: Damian Zieba | semtak.pl
   ========================================================================== */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-primary); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-heading);
    line-height: 1.2;
    font-weight: 600;
}
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, textarea, select {
    font: inherit;
    color: inherit;
    border: 1px solid var(--color-border);
    border-radius: 0;
    padding: 10px 14px;
    width: 100%;
    transition: border-color .2s;
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* ---------- Skip Link (a11y) ---------- */
.stb-skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 9999;
    padding: 8px 16px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
}
.stb-skip-link:focus { left: 0; }

/* ---------- Container ---------- */
.stb-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- Layout (2/3 + 1/3) ---------- */
.stb-layout {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--gap);
    padding-top: 32px;
    padding-bottom: 48px;
}
.stb-layout-single {
    padding-top: 32px;
    padding-bottom: 48px;
}
.stb-main--wide {
    max-width: 800px;
    margin: 0 auto;
}

/* ---------- Grid system ---------- */
.stb-grid { display: grid; gap: var(--gap); }
.stb-grid-2 { grid-template-columns: repeat(2, 1fr); }
.stb-grid-3 { grid-template-columns: repeat(3, 1fr); }
.stb-grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Cards (InvestNews style — sharp, shadow) ---------- */
.stb-card {
    background: var(--color-bg);
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: box-shadow .25s, transform .25s;
}
.stb-card:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,0.12);
    transform: translateY(-2px);
}
.stb-card-thumb {
    display: block;
    position: relative;
    overflow: hidden;
}
.stb-card-thumb img {
    width: 100%;
    height: auto;
    transition: transform .4s;
}
.stb-card:hover .stb-card-thumb img {
    transform: scale(1.05);
}
.stb-card-body {
    padding: 16px;
}
.stb-card-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 8px;
}
.stb-card-title a:hover { color: var(--color-primary); }
.stb-card-meta {
    font-size: 0.8rem;
    color: #999;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.stb-meta-sep { color: #ccc; }
.stb-card-excerpt {
    font-size: 0.875rem;
    color: var(--color-text);
    line-height: 1.5;
}

/* ---------- Category Badge ---------- */
.stb-category-badge {
    display: inline-block;
    background: var(--color-primary);
    color: #fff;
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    position: absolute;
    top: 12px;
    left: 12px;
    z-index: 2;
}
.stb-category-badge--single {
    position: static;
    margin-bottom: 12px;
}

/* ---------- Breadcrumbs ---------- */
.stb-breadcrumbs-bar {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 0;
    margin-bottom: 5px; /* START.md wymaga 5px odstępu od kontentu */
}
.stb-breadcrumbs {
    font-size: 0.8rem;
    color: #888;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.stb-breadcrumbs a { color: #666; }
.stb-breadcrumbs a:hover { color: var(--color-primary); }
.stb-breadcrumbs-sep { color: #ccc; }

/* ---------- Archive Header (dark) ---------- */
.stb-archive-header {
    background: #1a1a2e;
    color: #fff;
    padding: 32px 0;
}
.stb-archive-header .stb-breadcrumbs,
.stb-archive-header .stb-breadcrumbs a,
.stb-archive-header .stb-breadcrumbs-sep {
    color: rgba(255,255,255,0.6);
}
.stb-archive-header .stb-breadcrumbs a:hover { color: #fff; }
.stb-archive-title {
    font-size: 1.75rem;
    margin-top: 8px;
    color: #fff;
}
.stb-archive-desc {
    margin-top: 8px;
    color: rgba(255,255,255,0.7);
    font-size: 0.9rem;
}

/* ---------- Pagination ---------- */
.stb-pagination { margin-top: 32px; text-align: center; }
.stb-pagination .nav-links {
    display: flex;
    justify-content: center;
    gap: 4px;
    flex-wrap: wrap;
}
.stb-pagination .page-numbers {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 12px;
    border: 1px solid var(--color-border);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all .2s;
}
.stb-pagination .page-numbers.current,
.stb-pagination .page-numbers:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

/* ---------- Sidebar ---------- */
.stb-sidebar {
    position: static;
}
.stb-widget {
    margin-bottom: 24px;
    padding: 20px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
}
.stb-widget-title {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-heading);
    padding-bottom: 12px;
    margin-bottom: 16px;
    border-bottom: 2px solid var(--color-primary);
}

/* Sidebar Tabs */
.stb-tab-nav {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 16px;
}
.stb-tab-nav li { flex: 1; }
.stb-tab-nav a {
    display: block;
    text-align: center;
    padding: 10px 8px;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    color: #999;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all .2s;
}
.stb-tab-nav a.stb-tab-active,
.stb-tab-nav a:hover {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}
.stb-tab-content { display: none; }
.stb-tab-content.stb-tab-visible { display: block; }

/* Tab posts list */
.stb-tab-posts { list-style: none; }
.stb-tab-post {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
}
.stb-tab-post:last-child { border-bottom: 0; }
.stb-tab-post-thumb {
    flex-shrink: 0;
    width: 94px;
    height: 70px;
    overflow: hidden;
}
.stb-tab-post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.stb-tab-post-info { flex: 1; min-width: 0; }
.stb-tab-post-meta {
    font-size: 0.75rem;
    color: #999;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}
.stb-tab-post-title {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.3;
}
.stb-tab-post-title a:hover { color: var(--color-primary); }

/* Category list */
.stb-category-list li {
    border-bottom: 1px solid var(--color-border);
}
.stb-category-list li:last-child { border-bottom: 0; }
.stb-category-list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    font-size: 0.875rem;
    font-weight: 500;
}
.stb-category-list a:hover { color: var(--color-primary); }
.stb-cat-count {
    font-size: 0.8rem;
    color: #999;
    font-weight: 400;
}

/* Featured posts */
.stb-featured-posts { list-style: none; }
.stb-featured-post {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
}
.stb-featured-post:last-child { border-bottom: 0; }
.stb-featured-thumb {
    flex-shrink: 0;
    width: 94px;
    height: 70px;
    overflow: hidden;
}
.stb-featured-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.stb-featured-info { flex: 1; min-width: 0; }
.stb-featured-info h4 {
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 4px;
}
.stb-featured-info h4 a:hover { color: var(--color-primary); }
.stb-featured-info time {
    font-size: 0.75rem;
    color: #999;
}

/* ---------- Single Post ---------- */
.stb-article { margin-bottom: 32px; }
.stb-post-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.2;
}
.stb-post-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: #999;
    margin-bottom: 20px;
}
.stb-meta-author {
    display: flex;
    align-items: center;
    gap: 6px;
}
.stb-meta-author img {
    border-radius: 50%;
    width: 32px;
    height: 32px;
}
.stb-post-thumbnail {
    margin-bottom: 24px;
}
.stb-post-thumbnail img {
    width: 100%;
}
.stb-post-content {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-entry);
}
.stb-post-content p { margin-bottom: 1.25em; }
.stb-post-content h2 {
    font-size: 1.5rem;
    margin: 2em 0 0.75em;
}
.stb-post-content h3 {
    font-size: 1.25rem;
    margin: 1.5em 0 0.5em;
}
.stb-post-content ul, .stb-post-content ol {
    margin: 0 0 1.25em 1.5em;
    list-style: disc;
}
.stb-post-content ol { list-style: decimal; }
.stb-post-content blockquote {
    border-left: 4px solid var(--color-primary);
    padding: 16px 20px;
    margin: 1.5em 0;
    background: var(--color-surface);
    font-style: italic;
}
.stb-post-content img {
    margin: 1em 0;
    border-radius: 0;
}

/* Tags */
.stb-post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}
.stb-tag {
    display: inline-block;
    padding: 6px 14px;
    border: 1px solid var(--color-border);
    font-size: 0.8rem;
    font-weight: 500;
    transition: all .2s;
}
.stb-tag:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

/* Author box */
.stb-author-box {
    display: flex;
    gap: 20px;
    padding: 24px;
    margin-top: 32px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}
.stb-author-box > img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    flex-shrink: 0;
}
.stb-author-name {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}
.stb-author-bio {
    font-size: 0.875rem;
    color: var(--color-text);
    line-height: 1.5;
}

/* Related posts */
.stb-related {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}
.stb-related-title {
    font-size: 1.25rem;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary);
}

/* ---------- TOC ---------- */
.stb-toc {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    padding: 20px 24px;
    margin: 24px 0;
}
.stb-toc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.stb-toc-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0;
}
.stb-toc-toggle {
    padding: 4px;
    color: var(--color-text);
    transition: transform .2s;
}
.stb-toc-toggle[aria-expanded="false"] { transform: rotate(-90deg); }
.stb-toc-list {
    list-style: none;
}
.stb-toc-list li {
    padding: 4px 0;
}
.stb-toc-list a {
    font-size: 0.875rem;
    color: var(--color-text);
}
.stb-toc-list a:hover { color: var(--color-primary); }
.stb-toc-sub { padding-left: 16px; }

/* ---------- 404 ---------- */
.stb-404 {
    text-align: center;
    padding: 64px 0;
}
.stb-404-title {
    font-size: 6rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 8px;
}
.stb-404-subtitle {
    font-size: 1.5rem;
    margin-bottom: 12px;
}
.stb-404-text {
    margin-bottom: 24px;
    color: var(--color-text);
}

/* ---------- Buttons ---------- */
.stb-btn {
    display: inline-block;
    padding: 12px 28px;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: center;
    transition: all .2s;
    cursor: pointer;
    border: none;
}
.stb-btn--primary {
    background: var(--color-primary);
    color: #fff;
}
.stb-btn--primary:hover {
    background: var(--color-primary-hover);
    color: #fff;
}

/* ---------- Search form inline ---------- */
.stb-search-form--inline {
    display: flex;
    max-width: 500px;
    margin: 0 auto 24px;
}
.stb-search-form--inline input {
    flex: 1;
    border-right: 0;
}
.stb-search-form--inline button {
    padding: 10px 20px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 600;
    border: 1px solid var(--color-primary);
    white-space: nowrap;
}

/* ---------- Contact form ---------- */
.stb-contact-form-wrap { margin-top: 32px; }
.stb-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}
.stb-form-group { margin-bottom: 16px; }
.stb-form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-heading);
}
.stb-form-status {
    padding: 12px 16px;
    margin-bottom: 16px;
    font-size: 0.875rem;
    font-weight: 500;
}
.stb-form-status--success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}
.stb-form-status--error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* ---------- CB inline kreacja ---------- */
.stb-cb-inline { margin: 24px 0; }
.stb-cb-billboard { margin: 24px 0; }
.stb-cb-widget { padding: 0; border: 0; background: transparent; }

/* ---------- Focus visible ---------- */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ==========================================================================
   RESPONSIVE — Mobile First
   ========================================================================== */

@media (max-width: 1024px) {
    .stb-layout {
        grid-template-columns: 1fr;
    }
    .stb-sidebar {
        margin-top: 32px;
    }
}

@media (max-width: 768px) {
    .stb-grid-3 { grid-template-columns: repeat(2, 1fr); }
    .stb-grid-4 { grid-template-columns: repeat(2, 1fr); }
    .stb-form-row { grid-template-columns: 1fr; }
    h1, .stb-post-title { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    .stb-404-title { font-size: 4rem; }
    .stb-author-box { flex-direction: column; text-align: center; }
    .stb-author-box > img { margin: 0 auto; }
}

@media (max-width: 480px) {
    .stb-grid-2,
    .stb-grid-3,
    .stb-grid-4 { grid-template-columns: 1fr; }
    .stb-container { padding: 0 12px; }
    .stb-card-body { padding: 12px; }
    .stb-widget { padding: 16px; }
}