/*
Theme Name: Site Catalogue
Theme URI: https://example.com/site-catalogue
Author: Developer
Author URI: https://example.com
Description: A custom WordPress theme for site catalogues. Features custom post types, taxonomies, SEO optimization, and responsive design. Inspired by directory-style websites.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 7.4
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: site-catalogue
Tags: directory, catalogue, custom-post-types, seo-ready, responsive-layout

Site Catalogue WordPress Theme
Copyright (C) 2024

This theme is distributed under the terms of the GNU GPL v2 or later.
*/

/* ==========================================================================
   CSS Variables / Custom Properties
   ========================================================================== */
:root {
    /* Colors - Light Theme */
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #64748b;
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #1e293b;

    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;

    /* Border Colors */
    --border-color: #e2e8f0;
    --border-color-dark: #cbd5e1;

    /* Badge Colors */
    --badge-new: #22c55e;
    --badge-sale: #ef4444;
    --badge-ai: #8b5cf6;
    --badge-verified: #3b82f6;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    /* Container */
    --container-max: 1280px;
    --container-padding: 1rem;

    /* Header */
    --header-height: 64px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-dark: #020617;

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --text-inverse: #1e293b;

    --border-color: #334155;
    --border-color-dark: #475569;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
    height: auto;
}

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

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

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
}

ul,
ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    line-height: var(--line-height-tight);
    font-weight: 600;
    color: var(--text-primary);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   Layout
   ========================================================================== */
.site-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 100vw;
    overflow-x: hidden;
}

.site-main {
    flex: 1;
    padding: var(--spacing-xl) 0;
    max-width: 100%;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    box-sizing: border-box;
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: var(--spacing-sm);
    max-width: 100%;
}

.site-branding {
    flex-shrink: 0;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

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

.site-logo img {
    height: 40px;
    width: auto;
}

/* Text Logo Styling */
.site-logo.text-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-height: 48px; /* Touch target */
    padding: var(--spacing-xs) 0;
}

.site-logo .logo-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.site-logo .logo-text {
    display: inline-block;
}

/* Navigation */
.main-navigation {
    display: none;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-sm) 0;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.current {
    color: var(--color-primary);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-normal);
}

.nav-menu a:hover::after,
.nav-menu a.current::after {
    width: 100%;
}

/* Header Search */
.header-search {
    flex: 1;
    max-width: 400px;
}

.search-form {
    display: flex;
    position: relative;
}

.search-form input[type="search"] {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-right: 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.search-form input[type="search"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.search-form button {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
}

.search-form button:hover {
    color: var(--color-primary);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.theme-toggle {
    background: none;
    border: none;
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
    color: var(--color-primary);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 24px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Mobile Navigation */
.mobile-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 100vw;
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 99;
    box-sizing: border-box;
}

.mobile-nav.active {
    display: block;
}

/* Mobile Search */
.mobile-search {
    margin-bottom: var(--spacing-md);
}

.mobile-search .search-form {
    display: flex;
    position: relative;
}

.mobile-search .search-field {
    width: 100%;
    padding: var(--spacing-md);
    padding-right: 3rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.mobile-search .search-field:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.mobile-search .search-submit {
    position: absolute;
    right: var(--spacing-sm);
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-primary);
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    min-width: 40px;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-search .search-submit:hover {
    background: var(--color-primary-dark);
}

/* Mobile Quick Actions */
.mobile-actions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.mobile-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 72px;
}

.mobile-action-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--color-primary);
}

.mobile-action-btn svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.mobile-theme-toggle .icon-moon {
    display: none;
}

[data-theme="dark"] .mobile-theme-toggle .icon-sun {
    display: none;
}

[data-theme="dark"] .mobile-theme-toggle .icon-moon {
    display: block;
}

/* Mobile Categories Section */
.mobile-categories {
    margin-bottom: var(--spacing-md);
}

.mobile-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    padding: 0 var(--spacing-sm);
}

.mobile-nav-menu {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mobile-nav-menu li {
    list-style: none;
}

.mobile-nav-menu a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    min-height: 52px; /* Touch target */
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.mobile-nav-menu a:hover {
    background-color: var(--bg-tertiary);
    color: var(--color-primary);
}

.mobile-nav-menu .count {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    background-color: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

/* ==========================================================================
   Category Block - True Masonry Layout using CSS Columns (Reference Style)
   ========================================================================== */
.category-blocks {
    column-count: 1;
    column-gap: var(--spacing-md);
}

/* Desktop: 2 columns */
@media (min-width: 768px) {
    .category-blocks {
        column-count: 2;
    }
}

/* Large Desktop: 3 columns */
@media (min-width: 1024px) {
    .category-blocks {
        column-count: 3;
    }
}

/* Extra Large: 4 columns */
@media (min-width: 1400px) {
    .category-blocks {
        column-count: 4;
    }
}

.category-block {
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    /* Masonry layout support */
    break-inside: avoid;
    margin-bottom: var(--spacing-md);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    min-height: 56px; /* Touch target - increased for better accessibility */
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    color: #1e293b;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-bottom: 1px solid var(--border-color);
}

.category-header:hover {
    background: linear-gradient(135deg, #f1f5f9 0%, #cbd5e1 100%);
}

[data-theme="dark"] .category-header {
    background: linear-gradient(135deg, #374151 0%, #1f2937 100%);
    color: white;
    border-bottom-color: #4b5563;
}

[data-theme="dark"] .category-header:hover {
    background: linear-gradient(135deg, #4b5563 0%, #374151 100%);
}

.category-title-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    min-width: 0;
}

.category-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.category-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.category-title {
    margin: 0;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.category-title a {
    color: inherit;
    display: inline-flex;
    align-items: center;
    min-height: 44px; /* Touch target */
    padding: var(--spacing-xs) var(--spacing-sm);
    margin: calc(var(--spacing-xs) * -1) calc(var(--spacing-sm) * -1); /* Compensate for padding */
    border-radius: var(--radius-sm);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.category-title a:hover {
    color: var(--color-primary);
    background-color: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .category-title a:hover {
    color: #fbbf24;
    background-color: rgba(255, 255, 255, 0.1);
}

.category-count {
    display: none;
}

.category-toggle {
    background: none;
    border: none;
    padding: var(--spacing-sm);
    min-width: 48px; /* Touch target */
    min-height: 48px; /* Touch target */
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    cursor: pointer;
    transition: transform var(--transition-fast), background-color var(--transition-fast);
    flex-shrink: 0;
    border-radius: var(--radius-md);
    margin: -8px; /* Compensate for larger touch area */
    margin-left: auto;
}

.category-toggle:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .category-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .category-toggle {
    color: rgba(255, 255, 255, 0.6);
}

.category-toggle svg {
    width: 16px;
    height: 16px;
}

.category-block.collapsed .category-toggle {
    transform: rotate(-90deg);
}

.category-description {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    font-size: var(--font-size-xs);
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    line-height: 1.4;
}

.category-content {
    padding: var(--spacing-sm);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.category-block.collapsed .category-content {
    display: none;
}

.category-block.collapsed .category-description {
    display: none;
}

.category-block.collapsed .category-footer {
    display: none;
}

/* Sites List - Compact Style */
.sites-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    counter-reset: site-counter;
}

/* Scrollable Sites List */
.sites-list--scrollable {
    /* Calculate max-height based on visible items (approx 34px per item) */
    --item-height: 34px;
    max-height: calc(var(--visible-items, 10) * var(--item-height));
    overflow-y: auto;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Custom Scrollbar Styling */
.sites-list--scrollable::-webkit-scrollbar {
    width: 6px;
}

.sites-list--scrollable::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 3px;
}

.sites-list--scrollable::-webkit-scrollbar-thumb {
    background: var(--border-color-dark);
    border-radius: 3px;
    transition: background var(--transition-fast);
}

.sites-list--scrollable::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Firefox scrollbar */
.sites-list--scrollable {
    scrollbar-width: thin;
    scrollbar-color: var(--border-color-dark) var(--bg-secondary);
}

/* Scroll shadow indicator when scrollable */
.sites-list--scrollable {
    position: relative;
    /* Bottom shadow to indicate more content */
    mask-image: linear-gradient(to bottom, black calc(100% - 16px), transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black calc(100% - 16px), transparent 100%);
}

/* Remove mask when scrolled to bottom (handled via JS if needed) */
.sites-list--scrollable.scrolled-to-bottom {
    mask-image: none;
    -webkit-mask-image: none;
}

/* ==========================================================================
   Site Card - Compact Style (Reference)
   ========================================================================== */
.site-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    background-color: transparent;
    transition: background-color var(--transition-fast);
    counter-increment: site-counter;
}

.site-card:hover {
    background-color: var(--bg-tertiary);
}

.site-card:nth-child(odd) {
    background-color: var(--bg-secondary);
}

.site-card:nth-child(odd):hover {
    background-color: var(--bg-tertiary);
}

.site-position {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    width: 22px;
    height: 22px;
    background-color: transparent;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 11px;
    flex-shrink: 0;
}

.site-position::after {
    content: '.';
}

.site-favicon {
    width: 18px;
    height: 18px;
    border-radius: 3px;
    object-fit: contain;
    flex-shrink: 0;
    background-color: transparent;
}

.site-info {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.site-name {
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.site-name a {
    color: inherit;
}

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

.site-url {
    display: none;
}

.site-meta {
    display: flex;
    align-items: center;
    gap: 3px;
    flex-shrink: 0;
}

/* Badges - Compact Style */
.site-badges {
    display: flex;
    gap: 2px;
    flex-wrap: nowrap;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1px 4px;
    font-size: 9px;
    font-weight: 700;
    border-radius: 2px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge--new {
    background-color: #22c55e;
    color: white;
}

.badge--sale {
    background-color: #ef4444;
    color: #ffeb3b;
}

.badge--ai {
    background-color: #8b5cf6;
    color: white;
}

.badge--verified {
    background-color: transparent;
    color: #3b82f6;
    padding: 0;
}

.badge--country {
    padding: 0;
    background: transparent;
    font-size: 14px;
    line-height: 1;
}

.badge--country img {
    width: 16px;
    height: 12px;
    object-fit: cover;
}

.verified-icon {
    color: #3b82f6;
    flex-shrink: 0;
    font-size: 14px;
}

.verified-icon svg {
    width: 14px;
    height: 14px;
}

/* Rating - Hidden in compact view */
.site-rating {
    display: none;
}

/* Site Actions */
.site-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
    margin-left: auto;
}

.site-details-link,
.site-visit-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.site-details-link:hover {
    background-color: var(--color-primary);
    color: white;
}

.site-visit-link:hover {
    background-color: var(--color-success);
    color: white;
}

.site-details-link svg,
.site-visit-link svg {
    display: block;
}

.icon-eye {
    width: 18px;
    height: 18px;
}

.icon-external {
    width: 14px;
    height: 14px;
}

/* ==========================================================================
   Category Footer / More Button - Full Width Style
   ========================================================================== */
.category-footer {
    padding: var(--spacing-sm);
    margin-top: auto;
}

.more-sites-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    width: 100%;
    min-height: 48px; /* Touch target */
    padding: 12px 16px;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    box-shadow: 0 1px 3px rgba(245, 158, 11, 0.3);
}

.more-sites-btn:hover {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(245, 158, 11, 0.4);
}

.more-sites-btn svg {
    width: 12px;
    height: 12px;
}

/* Button colors - rotating */
.category-block:nth-child(5n+2) .more-sites-btn {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
    box-shadow: 0 2px 4px rgba(236, 72, 153, 0.3);
}

.category-block:nth-child(5n+2) .more-sites-btn:hover {
    background: linear-gradient(135deg, #db2777 0%, #be185d 100%);
    box-shadow: 0 4px 8px rgba(236, 72, 153, 0.4);
}

.category-block:nth-child(5n+3) .more-sites-btn {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.3);
}

.category-block:nth-child(5n+3) .more-sites-btn:hover {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    box-shadow: 0 4px 8px rgba(59, 130, 246, 0.4);
}

.category-block:nth-child(5n+4) .more-sites-btn {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.3);
}

.category-block:nth-child(5n+4) .more-sites-btn:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.4);
}

.category-block:nth-child(5n+5) .more-sites-btn {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    box-shadow: 0 2px 4px rgba(139, 92, 246, 0.3);
}

.category-block:nth-child(5n+5) .more-sites-btn:hover {
    background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
    box-shadow: 0 4px 8px rgba(139, 92, 246, 0.4);
}

/* ==========================================================================
   Single Site Page
   ========================================================================== */
.single-site-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

.single-site-top {
    display: flex;
    gap: var(--spacing-xl);
}

.single-site-favicon {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-xl);
    object-fit: contain;
    background-color: var(--bg-secondary);
    flex-shrink: 0;
}

.single-site-info {
    flex: 1;
}

.single-site-title {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.single-site-title h1 {
    margin: 0;
}

.single-site-url {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.single-site-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
}

.single-site-rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-lg);
}

.single-site-badges {
    display: flex;
    gap: var(--spacing-sm);
}

.single-site-badges .badge {
    padding: 4px 10px;
    font-size: var(--font-size-sm);
}

.visit-site-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background-color: var(--color-success);
    color: white;
    font-weight: 600;
    font-size: var(--font-size-lg);
    border-radius: var(--radius-lg);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    margin-top: var(--spacing-md);
}

.visit-site-btn:hover {
    background-color: #16a34a;
    color: white;
    transform: translateY(-2px);
}

.single-site-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.single-site-description {
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.single-site-description h2 {
    margin-bottom: var(--spacing-md);
}

.single-site-categories {
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.single-site-categories h3 {
    margin-bottom: var(--spacing-md);
}

.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.category-tag {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.category-tag:hover {
    background-color: var(--color-primary);
    color: white;
}

/* Related Sites */
.related-sites {
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.related-sites h3 {
    margin-bottom: var(--spacing-lg);
}

.related-sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

/* ==========================================================================
   Archive / Taxonomy Page
   ========================================================================== */
.archive-header {
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.archive-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.archive-title h1 {
    margin: 0;
}

.archive-description {
    color: var(--text-secondary);
    max-width: 800px;
}

.archive-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.archive-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.archive-sites {
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

/* Filters */
.archive-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.filter-group label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.filter-group select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
}

/* ==========================================================================
   Pagination
   ========================================================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-sm);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.pagination a {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
}

.pagination a:hover {
    background-color: var(--color-primary);
    color: white;
}

.pagination .current {
    background-color: var(--color-primary);
    color: white;
}

.pagination .dots {
    color: var(--text-muted);
}

/* ==========================================================================
   Sidebar
   ========================================================================== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.sidebar-widget {
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.widget-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-primary);
}

.categories-widget-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.categories-widget-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast);
}

.categories-widget-list a:hover {
    background-color: var(--bg-tertiary);
    color: var(--color-primary);
}

.categories-widget-list .count {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    background-color: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

/* ==========================================================================
   Search Results
   ========================================================================== */
.search-header {
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.search-header h1 {
    margin-bottom: var(--spacing-md);
}

.search-query {
    color: var(--color-primary);
}

.search-count {
    color: var(--text-muted);
}

.no-results {
    text-align: center;
    padding: var(--spacing-3xl);
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.no-results h2 {
    margin-bottom: var(--spacing-md);
}

.no-results p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */
.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

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

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

.breadcrumbs .separator {
    color: var(--text-muted);
}

.breadcrumbs .current {
    color: var(--text-primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background-color: var(--bg-dark);
    color: var(--text-inverse);
    padding: var(--spacing-2xl) 0;
    margin-top: auto;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-inverse);
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.footer-nav h4,
.footer-categories h4 {
    color: var(--text-inverse);
    margin-bottom: var(--spacing-md);
}

.footer-menu {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-menu a {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-menu a:hover {
    color: var(--text-inverse);
}

.footer-bottom {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.social-links a:hover {
    color: var(--text-inverse);
}

/* ==========================================================================
   Utilities
   ========================================================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

.hidden { display: none !important; }

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Tablet (768px+) */
@media (min-width: 768px) {
    :root {
        --container-padding: 1.5rem;
    }

    .main-navigation {
        display: block;
    }

    .menu-toggle {
        display: none;
    }

    .single-site-header {
        flex-direction: row;
    }

    .archive-content {
        grid-template-columns: 1fr 280px;
    }

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

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    :root {
        --container-padding: 2rem;
    }

    .single-site-content {
        grid-template-columns: 2fr 1fr;
    }
}

/* Large Desktop (1280px+) */
@media (min-width: 1280px) {
    .related-sites-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Mobile Only */
@media (max-width: 767px) {
    /* Prevent horizontal overflow on mobile */
    html, body {
        overflow-x: hidden;
        max-width: 100vw;
    }

    .site-container,
    .site-main,
    .container {
        max-width: 100vw;
        overflow-x: hidden;
    }

    /* Reduce container padding on small screens */
    .container {
        padding: 0 var(--spacing-sm);
    }

    /* Hide header search on mobile - moved to mobile menu */
    .header-search {
        display: none;
    }

    /* Hide desktop theme toggle on mobile - available in mobile menu */
    .header-actions .theme-toggle {
        display: none;
    }

    /* Constrain header elements */
    .header-inner {
        gap: var(--spacing-xs);
        padding: 0;
    }

    .site-branding {
        max-width: 60%;
        overflow: hidden;
    }

    .site-logo {
        font-size: var(--font-size-lg);
        max-width: 100%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .site-logo.text-logo {
        font-size: var(--font-size-base);
    }

    /* Mobile menu fixes */
    .mobile-nav {
        padding: var(--spacing-sm);
    }

    .mobile-search .search-field {
        font-size: 16px; /* Prevent iOS zoom on focus */
    }

    .mobile-actions {
        gap: var(--spacing-xs);
    }

    .mobile-action-btn {
        padding: var(--spacing-sm);
        min-height: 64px;
        font-size: 10px;
    }

    .mobile-action-btn svg {
        width: 20px;
        height: 20px;
    }

    /* Category blocks */
    .category-blocks {
        gap: var(--spacing-sm);
    }

    .category-block {
        max-width: 100%;
        overflow: hidden;
    }

    .category-header {
        padding: var(--spacing-sm) var(--spacing-md);
        min-height: 52px; /* Maintain touch target on mobile */
        gap: var(--spacing-xs);
    }

    .category-title-wrapper {
        min-width: 0;
        flex: 1;
        overflow: hidden;
    }

    .category-title {
        font-size: 11px;
    }

    .category-title a {
        min-height: 48px; /* Touch target on mobile */
    }

    .category-toggle {
        min-width: 40px;
        min-height: 40px;
        margin: -4px;
        margin-left: auto;
    }

    .category-icon {
        width: 24px;
        height: 24px;
        font-size: var(--font-size-sm);
    }

    /* Scrollable sites list on mobile */
    .sites-list--scrollable {
        --item-height: 30px;
        /* Touch-friendly scrollbar on mobile */
        scrollbar-width: none; /* Hide default scrollbar on Firefox */
        -ms-overflow-style: none; /* Hide scrollbar on IE/Edge */
    }

    .sites-list--scrollable::-webkit-scrollbar {
        width: 4px;
    }

    /* Site cards */
    .site-card {
        padding: 4px 6px;
    }

    .site-name {
        font-size: 12px;
    }

    /* Footer buttons */
    .more-sites-btn {
        font-size: 11px;
        padding: 10px 12px;
        min-height: 44px;
    }

    .single-site-top {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .single-site-meta {
        justify-content: center;
    }

    .archive-filters {
        flex-direction: column;
    }

    .filter-group {
        width: 100%;
    }

    .filter-group select {
        flex: 1;
    }
}

/* Extra small devices */
@media (max-width: 359px) {
    .container {
        padding: 0 var(--spacing-xs);
    }

    .mobile-actions {
        grid-template-columns: repeat(3, 1fr);
    }

    .mobile-action-btn {
        padding: var(--spacing-xs);
        min-height: 56px;
        font-size: 9px;
    }

    .mobile-action-btn svg {
        width: 18px;
        height: 18px;
    }

    .category-title {
        font-size: 10px;
    }

    .site-name {
        font-size: 11px;
    }
}

/* Print Styles */
@media print {
    .site-header,
    .site-footer,
    .sidebar,
    .theme-toggle,
    .menu-toggle,
    .visit-site-btn {
        display: none !important;
    }

    .site-main {
        padding: 0;
    }

    .category-block,
    .single-site-header,
    .archive-header {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}