/**
 * base.css — Core styles for stol-z-krzeslami.pl
 * Design: Pixwell Food
 * Author: Damian Zięba | https://semtak.pl
 */

/* ═══ CSS CUSTOM PROPERTIES ═══ */
:root {
    --color-primary: #333333;
    --color-bg: #ffffff;
    --color-text: #333333;
    --color-text-secondary: #888888;
    --color-border: #e5e5e5;
    --color-footer-bg: #1a1a1a;
    --color-footer-text: #ffffff;
    --color-overlay: rgba(0, 0, 0, 0.45);

    --font-heading: 'Yanone Kaffeesatz', Arial, sans-serif;
    --font-body: 'Merriweather', Arial, serif;
    --font-category: 'Galada', cursive;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-xs: 12px;

    --space-xs: 4px;
    --space-s: 8px;
    --space-m: 16px;
    --space-l: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;

    --container-width: 1200px;
    --container-padding: 20px;
    --sidebar-width: 340px;
    --gap: 20px;

    --radius-none: 0px;
}

/* ═══ RESET ═══ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    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: opacity 0.2s ease;
}

a:hover {
    opacity: 0.75;
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 300;
    line-height: 1.25;
    color: var(--color-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.625rem; }
h4 { font-size: 1.25rem; }

/* ═══ CONTAINER ═══ */
.stb-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ═══ LAYOUT: 2 kolumny ═══ */
.stb-layout {
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: var(--gap);
    align-items: start;
    padding-top: var(--space-xl);
    padding-bottom: var(--space-2xl);
}

.stb-main-col {
    min-width: 0;
}

/* ═══ HEADER ═══ */
.stb-header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: relative;
    z-index: 100;
}

.stb-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.stb-logo-text {
    font-family: system-ui, -apple-system, sans-serif;
    font-weight: 700;
    font-size: 2.5rem;
    color: var(--color-primary);
    line-height: 1;
}

.stb-logo .custom-logo {
    max-height: 50px;
    width: auto;
}

/* Navigation */
.stb-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.stb-menu {
    display: flex;
    gap: var(--space-l);
    align-items: center;
}

.stb-menu li a {
    font-family: var(--font-heading);
    font-weight: 300;
    font-size: 1.5rem;
    text-transform: uppercase;
    color: var(--color-primary);
    padding: var(--space-s) 0;
    position: relative;
}

.stb-menu li a:hover {
    opacity: 1;
}

.stb-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s ease;
}

.stb-menu li a:hover::after {
    width: 100%;
}

/* Header actions */
.stb-header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-m);
}

.stb-search-toggle,
.stb-hamburger {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-primary);
    padding: var(--space-xs);
}

.stb-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 28px;
}

.stb-hamburger span {
    display: block;
    height: 2px;
    background: var(--color-primary);
    transition: all 0.3s ease;
}

/* Search overlay */
.stb-search-overlay {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-l) 0;
    z-index: 99;
}

.stb-search-form {
    display: flex;
    gap: var(--space-s);
}

.stb-search-form input[type="search"] {
    flex: 1;
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    padding: 12px var(--space-m);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    outline: none;
}

.stb-search-form input[type="search"]:focus {
    border-color: var(--color-primary);
}

.stb-search-form button {
    background: var(--color-primary);
    color: var(--color-bg);
    border: none;
    padding: 12px var(--space-l);
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 1.125rem;
}

/* Mobile menu */
.stb-mobile-menu {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-m) 0;
}

.stb-mobile-menu-list {
    padding: 0 var(--container-padding);
}

.stb-mobile-menu-list li a {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.375rem;
    padding: var(--space-s) 0;
    border-bottom: 1px solid var(--color-border);
    text-transform: uppercase;
}

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

.stb-widget {
    margin-bottom: var(--space-l);
    padding: var(--space-m);
}

.stb-widget-title {
    font-family: var(--font-heading);
    font-weight: 300;
    font-size: 1.375rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-m);
    padding-bottom: var(--space-s);
    border-bottom: 1px solid var(--color-border);
}

/* Tabs */
.stb-tab-nav {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: var(--space-m);
}

.stb-tab-nav li {
    flex: 1;
}

.stb-tab-nav a {
    display: block;
    text-align: center;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    padding: var(--space-s) var(--space-m);
    color: var(--color-text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.stb-tab-nav a.stb-tab-active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.stb-tab-content {
    display: none;
}

.stb-tab-content.stb-tab-active {
    display: block;
}

/* Tab posts */
.stb-tab-posts {
    display: flex;
    flex-direction: column;
    gap: var(--space-m);
}

.stb-tab-post {
    display: flex;
    gap: var(--space-m);
    align-items: flex-start;
}

.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-meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    display: block;
    margin-bottom: var(--space-xs);
}

.stb-tab-post-meta a {
    color: var(--color-text-secondary);
}

.stb-tab-post-title {
    font-family: var(--font-heading);
    font-weight: 400;
    font-size: 1.0625rem;
    line-height: 1.3;
}

.stb-tab-post-title a:hover {
    opacity: 0.7;
}

/* Categories list */
.stb-category-list li {
    border-bottom: 1px solid var(--color-border);
}

.stb-category-list li a {
    display: flex;
    justify-content: space-between;
    padding: var(--space-s) 0;
    font-family: var(--font-heading);
    font-size: 1.0625rem;
}

.stb-cat-count {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ═══ BREADCRUMBS ═══ */
.stb-breadcrumbs {
    font-family: var(--font-heading);
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    padding: var(--space-s) 0;
    margin-bottom: 5px;
}

.stb-breadcrumbs a {
    color: var(--color-text-secondary);
}

.stb-breadcrumbs a:hover {
    color: var(--color-primary);
}

.stb-breadcrumb-sep {
    margin: 0 var(--space-s);
    color: var(--color-text-secondary);
}

.stb-breadcrumb-current {
    color: var(--color-primary);
}

/* ═══ POST META ═══ */
.stb-post-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-s);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.stb-meta-author {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.stb-author-avatar {
    border-radius: 50%;
    width: 28px;
    height: 28px;
}

.stb-meta-by {
    color: var(--color-text-secondary);
}

.stb-meta-author a {
    color: var(--color-primary);
    font-weight: 700;
}

/* ═══ CATEGORY BADGE (Galada) ═══ */
.stb-cat-badge {
    font-family: var(--font-category);
    font-size: 15px;
    color: inherit;
}

.stb-cat-badges {
    display: flex;
    gap: var(--space-s);
}

/* ═══ READ MORE ═══ */
.stb-read-more {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.stb-read-more:hover {
    opacity: 0.7;
}

/* ═══ SECTION TITLES (block titles with ■ decoration) ═══ */
.stb-section-title {
    font-family: var(--font-heading);
    font-weight: 300;
    font-size: 2rem;
    text-align: center;
    color: var(--color-primary);
    margin-bottom: var(--space-s);
}

.stb-section-title span {
    position: relative;
    display: inline-block;
}

.stb-section-title span::before,
.stb-section-title span::after {
    content: '\25A0';
    font-size: 0.5em;
    vertical-align: middle;
    color: var(--color-primary);
    margin: 0 var(--space-s);
}

.stb-section-subtitle {
    text-align: center;
    font-family: var(--font-body);
    font-style: italic;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

/* ═══ PAGINATION ═══ */
.stb-pagination {
    margin-top: var(--space-2xl);
    text-align: center;
}

.stb-pagination .nav-links {
    display: flex;
    justify-content: center;
    gap: var(--space-s);
}

.stb-pagination a,
.stb-pagination span {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    padding: var(--space-s) var(--space-m);
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.stb-pagination .current {
    background: var(--color-primary);
    color: var(--color-bg);
    border-color: var(--color-primary);
}

/* ═══ FOOTER ═══ */
.stb-footer {
    background: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: var(--space-2xl) 0 var(--space-l);
    margin-top: var(--space-2xl);
}

.stb-footer-inner {
    text-align: center;
}

.stb-footer-menu {
    display: flex;
    justify-content: center;
    gap: var(--space-l);
    margin-bottom: var(--space-l);
    flex-wrap: wrap;
}

.stb-footer-menu li a {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    text-transform: uppercase;
    color: var(--color-footer-text);
    opacity: 0.8;
}

.stb-footer-menu li a:hover {
    opacity: 1;
}

.stb-footer-copyright {
    font-size: var(--font-size-xs);
    opacity: 0.6;
}

/* ═══ BACK TO TOP ═══ */
.stb-back-to-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    background: var(--color-primary);
    color: var(--color-bg);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.stb-back-to-top[hidden] {
    display: flex;
}

.stb-back-to-top.stb-visible {
    opacity: 1;
    visibility: visible;
}

/* ═══ 404 ═══ */
.stb-404 {
    text-align: center;
    padding: var(--space-3xl) 0;
}

.stb-404-title {
    font-family: var(--font-heading);
    font-size: 8rem;
    font-weight: 700;
    color: var(--color-border);
    line-height: 1;
}

.stb-404-subtitle {
    font-family: var(--font-heading);
    font-size: 2rem;
    margin-bottom: var(--space-m);
}

.stb-404-desc {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.stb-404-search {
    max-width: 500px;
    margin: 0 auto var(--space-xl);
}

.stb-404-home {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    text-transform: uppercase;
    border: 2px solid var(--color-primary);
    padding: var(--space-s) var(--space-xl);
    display: inline-block;
}

.stb-404-home:hover {
    background: var(--color-primary);
    color: var(--color-bg);
    opacity: 1;
}

/* ═══ CONTACT FORM ═══ */
.stb-contact-form {
    max-width: 600px;
}

.stb-form-group {
    margin-bottom: var(--space-m);
}

.stb-form-group label {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.stb-form-group .required {
    color: #e53e3e;
}

.stb-form-group input,
.stb-form-group textarea {
    width: 100%;
    font-family: var(--font-body);
    font-size: var(--font-size-sm);
    padding: 12px var(--space-m);
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    outline: none;
}

.stb-form-group input:focus,
.stb-form-group textarea:focus {
    border-color: var(--color-primary);
}

.stb-btn {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 400;
    text-transform: uppercase;
    background: var(--color-primary);
    color: var(--color-bg);
    border: none;
    padding: 12px var(--space-xl);
    cursor: pointer;
    transition: opacity 0.2s;
}

.stb-btn:hover {
    opacity: 0.85;
}

.stb-form-status {
    margin-top: var(--space-m);
    padding: var(--space-m);
    font-size: var(--font-size-sm);
}

.stb-contact-info {
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

/* ═══ TOC ═══ */
.stb-toc {
    background: #f9f9f9;
    border: 1px solid var(--color-border);
    padding: var(--space-l);
    margin: var(--space-l) 0;
}

.stb-toc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-m);
}

.stb-toc-title {
    font-family: var(--font-heading);
    font-weight: 400;
    font-size: 1.375rem;
}

.stb-toc-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--color-text-secondary);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stb-toc-list {
    counter-reset: toc;
    padding-left: 0;
}

.stb-toc-list li {
    counter-increment: toc;
    padding: var(--space-xs) 0;
    font-size: var(--font-size-sm);
}

.stb-toc-list li::before {
    content: counter(toc) ". ";
    color: var(--color-text-secondary);
}

.stb-toc-list li.stb-toc-sub {
    padding-left: var(--space-l);
}

.stb-toc-list a {
    color: var(--color-primary);
}

.stb-toc-list a:hover {
    opacity: 0.7;
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1024px) {
    .stb-layout {
        grid-template-columns: 1fr 300px;
    }

    :root {
        --sidebar-width: 300px;
    }
}

@media (max-width: 768px) {
    .stb-layout {
        grid-template-columns: 1fr;
    }

    .stb-nav {
        display: none;
    }

    .stb-hamburger {
        display: flex;
    }

    .stb-header-inner {
        height: 60px;
    }

    .stb-logo-text {
        font-size: 1.75rem;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 16px;
    }

    .stb-footer-menu {
        flex-direction: column;
        gap: var(--space-s);
    }
}