/* ============================================
   HACKS.pawlikowiec.org — Główny arkusz stylów
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light theme (default) */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --color-primary: #0f766e;
    --color-primary-hover: #0d9488;
    --color-primary-light: #ccfbf1;
    --color-accent: #f59e0b;
    --color-accent-hover: #d97706;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --header-bg: rgba(255,255,255,0.95);
    --card-bg: #ffffff;
    --hero-bg: linear-gradient(135deg, #ccfbf1 0%, #f0fdf4 100%);
    --input-bg: #ffffff;
    --footer-bg: #0f172a;
    --footer-text: #cbd5e1;
    --ad-bg: #f1f5f9;
    --cookie-bg: rgba(15, 23, 42, 0.95);
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --color-primary: #14b8a6;
    --color-primary-hover: #2dd4bf;
    --color-primary-light: #134e4a;
    --color-accent: #fbbf24;
    --color-accent-hover: #f59e0b;
    --border-color: #334155;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4);
    --header-bg: rgba(15,23,42,0.95);
    --card-bg: #1e293b;
    --hero-bg: linear-gradient(135deg, #134e4a 0%, #1e293b 100%);
    --input-bg: #334155;
    --footer-bg: #020617;
    --footer-text: #94a3b8;
    --ad-bg: #1e293b;
    --cookie-bg: rgba(2, 6, 23, 0.98);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

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

/* --- Container --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Header --- */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary) !important;
    text-decoration: none;
}

.logo-icon {
    font-size: 1.8rem;
}

.logo-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary) !important;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary) !important;
    background: var(--color-primary-light);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* --- Theme Toggle --- */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    transition: all 0.2s;
    color: var(--text-primary);
}

.theme-toggle:hover {
    background: var(--border-color);
}

[data-theme="light"] .icon-moon { display: inline; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: inline; }

/* --- Mobile Menu --- */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: white !important;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* --- Cookie Banner --- */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--cookie-bg);
    color: white;
    padding: 16px 24px;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    backdrop-filter: blur(8px);
}

.cookie-banner.show {
    display: flex;
}

.cookie-banner p {
    font-size: 0.85rem;
    max-width: 600px;
    color: #e2e8f0;
    margin: 0;
}

.cookie-buttons {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.cookie-banner .btn {
    font-size: 0.8rem;
    padding: 8px 16px;
}

.cookie-banner .btn-outline {
    border-color: #475569;
    color: #cbd5e1;
}

/* --- Hero Section --- */
.hero {
    background: var(--hero-bg);
    padding: 60px 0 50px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero .highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 30px;
}

.hero-search {
    display: flex;
    gap: 8px;
    max-width: 500px;
    margin: 0 auto;
}

.search-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    background: var(--input-bg);
    color: var(--text-primary);
    transition: border-color 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* --- Main Layout --- */
.main-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 30px;
    padding-top: 40px;
    padding-bottom: 60px;
}

.content {
    min-width: 0;
}

/* --- Filters --- */
.filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.filter-btn {
    padding: 6px 16px;
    border-radius: 20px;
    border: 2px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* --- Posts Grid --- */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.post-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: all 0.3s;
    cursor: pointer;
    position: relative;
}

.post-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.post-card .post-category {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--color-primary-light);
    color: var(--color-primary);
    margin-bottom: 10px;
}

.post-card .post-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.post-card h2 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
    color: var(--text-primary);
}

.post-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.post-card .post-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.post-card .post-tags span {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

/* --- AdSense --- */
.ad-banner {
    background: var(--ad-bg);
    border-radius: var(--radius-sm);
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 20px 0;
    padding: 10px;
    text-align: center;
    overflow: hidden;
}

.ad-sidebar {
    background: var(--ad-bg);
    border-radius: var(--radius-sm);
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    padding: 10px;
    overflow: hidden;
}

/* --- Sidebar --- */
.sidebar {
    position: sticky;
    top: 84px;
    align-self: start;
}

.sidebar-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 20px;
}

.sidebar-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--color-primary-light);
}

.sidebar-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.tools-list {
    list-style: none;
}

.tools-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.tools-list li:last-child {
    border-bottom: none;
}

.tools-list a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.tools-list a:hover {
    color: var(--color-primary);
    padding-left: 4px;
}

/* --- Tags Cloud --- */
.tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.tag-item {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 14px;
    font-size: 0.8rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.2s;
}

.tag-item:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

/* --- Newsletter --- */
.newsletter {
    background: var(--hero-bg);
    padding: 50px 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.newsletter h2 {
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.newsletter p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
    gap: 8px;
    max-width: 450px;
    margin: 0 auto;
}

/* --- Footer --- */
.footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 50px 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 30px;
}

.footer-col h4 {
    color: white;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.footer-col p {
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a {
    color: var(--footer-text);
    font-size: 0.9rem;
}

.footer-col ul li a:hover {
    color: var(--color-primary-hover);
}

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding: 16px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: #64748b;
}

.footer-bottom a {
    color: #94a3b8;
}

/* --- Post Page Styles --- */
.post-page {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px 60px;
}

.post-page .post-header {
    margin-bottom: 30px;
}

.post-page .post-header h1 {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 12px;
}

.post-page .post-meta {
    display: flex;
    gap: 16px;
    font-size: 0.9rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.post-page .post-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.post-page .post-content {
    font-size: 1.05rem;
    line-height: 1.8;
}

.post-page .post-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 30px 0 12px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--color-primary-light);
}

.post-page .post-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 24px 0 8px;
}

.post-page .post-content p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.post-page .post-content ul,
.post-page .post-content ol {
    margin: 12px 0 20px 24px;
    color: var(--text-secondary);
}

.post-page .post-content li {
    margin-bottom: 8px;
}

.post-page .post-content blockquote {
    border-left: 4px solid var(--color-primary);
    padding: 12px 20px;
    margin: 20px 0;
    background: var(--bg-tertiary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.post-page .post-content code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

.post-page .post-content pre {
    background: var(--bg-tertiary);
    padding: 16px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: 16px 0;
    border: 1px solid var(--border-color);
}

.post-page .post-content a {
    text-decoration: underline;
    text-underline-offset: 2px;
}

.post-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.post-back:hover {
    color: var(--color-primary);
}

/* --- Tool Page --- */
.tool-page {
    max-width: 700px;
    margin: 0 auto;
    padding: 40px 20px 60px;
}

.tool-page h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 8px;
    text-align: center;
}

.tool-page .tool-desc {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.tool-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-md);
}

.tool-card label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.tool-card input:not([type="checkbox"]):not([type="radio"]):not([type="range"]),
.tool-card select {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    margin-bottom: 16px;
    background: var(--input-bg);
    color: var(--text-primary);
    transition: border-color 0.2s;
}

.tool-card input:focus:not([type="checkbox"]):not([type="radio"]):not([type="range"]),
.tool-card select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Checkboxy i range w tool-card — naturalny rozmiar */
.tool-card input[type="checkbox"],
.tool-card input[type="radio"] {
    width: auto;
    margin-right: 0;
    accent-color: var(--color-primary);
}

.tool-card input[type="range"] {
    width: 100%;
    accent-color: var(--color-primary);
}

.tool-card .result {
    background: var(--color-primary-light);
    padding: 16px;
    border-radius: var(--radius-sm);
    margin-top: 16px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    word-break: break-all;
}

.tool-card .result-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.tool-card .btn {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
}

/* --- Loading & Empty States --- */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.loading .spinner {
    display: inline-block;
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 12px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

.empty-state h3 {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* --- Error State --- */
.error-state {
    text-align: center;
    padding: 40px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius-md);
    color: #991b1b;
}

[data-theme="dark"] .error-state {
    background: #450a0a;
    border-color: #7f1d1d;
    color: #fca5a5;
}

/* --- Privacy / Cookies Pages --- */
.page-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px 60px;
}

.page-content h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.page-content h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 30px 0 12px;
    color: var(--text-primary);
}

.page-content p {
    margin-bottom: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.page-content ul {
    margin: 12px 0 20px 24px;
    color: var(--text-secondary);
}

.page-content li {
    margin-bottom: 8px;
}

/* --- No posts found --- */
.no-results {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    font-size: 1.1rem;
    grid-column: 1 / -1;
}

/* --- Pagination --- */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 30px;
    padding: 16px 0;
    grid-column: 1 / -1;
    flex-wrap: wrap;
}

.page-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--border-color, #E2E8F0);
    background: var(--card-bg, #FFFFFF);
    color: var(--text-primary, #1E293B);
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-btn:hover {
    background: var(--hover-bg, #EFF6FF);
    border-color: var(--color-primary, #3B82F6);
    color: var(--color-primary, #3B82F6);
}

.page-btn.active {
    background: var(--color-primary, #3B82F6);
    color: #FFFFFF;
    border-color: var(--color-primary, #3B82F6);
    font-weight: 600;
}

.page-btn.active:hover {
    background: var(--color-primary-dark, #2563EB);
    color: #FFFFFF;
}

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

    .sidebar {
        position: static;
        order: 2;
    }

    .content {
        order: 1;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--header-bg);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
    }

    .nav.open {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-search {
        flex-direction: column;
    }

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

    .post-page .post-header h1 {
        font-size: 1.5rem;
    }

    .tool-page h1 {
        font-size: 1.5rem;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .cookie-banner {
        padding: 12px 16px;
    }

    .cookie-banner p {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }

    .hero {
        padding: 40px 0 30px;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .filters {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 8px;
    }

    .filter-btn {
        flex-shrink: 0;
    }

    .sidebar-card {
        padding: 16px;
    }
}