/*
Theme Name: ToolNexus
Theme URI: https://toolnexus.org/
Author: Your Name
Author URI: https://toolnexus.org/
Description: A modern tool directory theme with SEO optimization - PERFORMANCE OPTIMIZED
Version: 1.0.1
License: GPL v2 or later
Text Domain: toolnexus
*/

/* ============================================
   CRITICAL CSS - This section should be inlined
   ============================================ */

/* Reset & Base - Critical for above-the-fold */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background: var(--body-bg, #f8fafc);
    color: var(--text-dark, #0f172a);
    line-height: 1.5;
}

/* Container - Critical for layout */
.app-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Grid - Critical for above-the-fold */
.two-columns {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
    margin: 40px 0 50px;
}

.main-tools {
    flex: 1;
    min-width: 0;
    width: 75%;
}

.sidebar {
    width: 25%;
    min-width: 250px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

/* Tool Cards - Critical */
.tool-card {
    background: var(--card-bg, #ffffff);
    border-radius: 0.75rem;
    padding: 0.9rem;
    transition: all 0.25s ease;
    border: 1px solid var(--border-light, #e2e8f0);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.1));
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.tool-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0,0,0,0.15));
    border-color: var(--primary, #3b82f6);
}

/* Buttons - Critical */
.btn-primary {
    background: var(--primary, #3b82f6);
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 60px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

/* ============================================
   NON-CRITICAL CSS - Loads after paint
   ============================================ */

/* Typography - Non-critical */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 0.5em;
    line-height: 1.2;
    color: var(--text-dark, #0f172a);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary, #3b82f6);
}

/* Secondary Buttons */
.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-light, #e2e8f0);
    padding: 10px 24px;
    border-radius: 60px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-dark, #0f172a);
}

.btn-secondary:hover {
    border-color: var(--primary, #3b82f6);
    color: var(--primary, #3b82f6);
}

/* Search Styles */
.search-wrapper {
    display: flex;
    gap: 12px;
    max-width: 650px;
    margin-bottom: 16px;
}

.search-box {
    position: relative;
    flex: 1;
}

.search-box input {
    width: 100%;
    padding: 14px 20px 14px 48px;
    border-radius: 60px;
    border: 1px solid var(--border-light, #e2e8f0);
    background: var(--card-bg, #ffffff);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.2s;
    color: var(--text-dark, #0f172a);
}

.search-box input:focus {
    border-color: var(--primary, #3b82f6);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary, #3b82f6);
    font-size: 1rem;
    pointer-events: none;
}

.search-clear {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted, #475569);
    cursor: pointer;
    display: none;
}

.search-btn {
    background: var(--primary, #3b82f6);
    border: none;
    padding: 0 24px;
    border-radius: 60px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

.search-btn:hover {
    background: var(--primary-dark, #2563eb);
    transform: scale(1.02);
}

/* Live Search Results */
.search-results-live {
    position: absolute;
    top: 58px;
    left: 0;
    width: 100%;
    background: var(--card-bg, #ffffff);
    border-radius: 20px;
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0,0,0,0.15));
    border: 1px solid var(--border-light, #e2e8f0);
    z-index: 50;
    max-height: 280px;
    overflow-y: auto;
    display: none;
}

.search-results-live.active {
    display: block;
}

.search-item {
    padding: 12px 18px;
    border-bottom: 1px solid var(--border-light, #e2e8f0);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background 0.2s;
    color: var(--text-dark, #0f172a);
}

.search-item:hover {
    background: var(--primary-soft, #eff6ff);
}

.search-item i {
    width: 24px;
    color: var(--primary, #3b82f6);
}

/* Category Section */
.category-section {
    margin-bottom: 40px;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary, #3b82f6);
    padding-left: 14px;
    color: var(--text-dark, #0f172a);
}

/* Tool Icon Container */
.tool-icon-container {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-soft, #eff6ff);
    border-radius: 12px;
    transition: all 0.2s;
}

.tool-card:hover .tool-icon-container {
    background: var(--primary, #3b82f6);
}

.tool-icon {
    font-size: 1.4rem;
    color: var(--primary, #3b82f6);
    transition: all 0.2s;
}

.tool-card:hover .tool-icon {
    color: white;
    transform: scale(1.05);
}

.tool-info {
    flex: 1;
}

.tool-name {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
    color: var(--text-dark, #0f172a);
}

.tool-description {
    font-size: 0.7rem;
    color: var(--text-muted, #475569);
}

/* Sidebar Widgets */
.sidebar-widget {
    background: var(--sidebar-bg, #ffffff);
    border-radius: 1.2rem;
    padding: 1.2rem;
    margin-bottom: 24px;
    border: 1px solid var(--border-light, #e2e8f0);
    box-shadow: var(--shadow-sm, 0 1px 3px rgba(0,0,0,0.1));
}

.widget-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 14px;
    border-bottom: 2px dashed var(--border-light, #e2e8f0);
    padding-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-dark, #0f172a);
}

.recent-list,
.popular-list {
    list-style: none;
}

.recent-list li,
.popular-list li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light, #e2e8f0);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--text-dark, #0f172a);
}

.recent-list li i,
.popular-list li i {
    width: 24px;
    color: var(--primary, #3b82f6);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    padding: 10px 16px;
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: 8px;
    background: var(--card-bg, #ffffff);
    color: var(--text-dark, #0f172a);
    transition: all 0.2s;
}

.pagination a:hover {
    background: var(--primary, #3b82f6);
    color: white;
    border-color: var(--primary, #3b82f6);
}

.pagination .current {
    background: var(--primary, #3b82f6);
    color: white;
    border-color: var(--primary, #3b82f6);
}

/* No Results */
.no-results {
    text-align: center;
    padding: 60px 20px;
    background: var(--card-bg, #ffffff);
    border-radius: 1.5rem;
    border: 1px solid var(--border-light, #e2e8f0);
}

.no-results h2 {
    margin-bottom: 16px;
    color: var(--text-dark, #0f172a);
}

.no-results .search-again {
    max-width: 400px;
    margin: 24px auto 0;
}

/* Loading Spinner */
.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-light, #e2e8f0);
    border-top-color: var(--primary, #3b82f6);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Hero Sections */
.hero-full,
.archive-header,
.search-header {
    background: var(--primary-soft, #eff6ff);
    border-bottom: 1px solid var(--border-light, #e2e8f0);
}

/* Dark Mode Overrides */
body.dark {
    --primary: #60a5fa;
    --primary-dark: #3b82f6;
    --primary-soft: #1e293b;
    --card-bg: #1e293b;
    --sidebar-bg: #0f172a;
    --text-dark: #f1f5f9;
    --text-muted: #cbd5e1;
    --border-light: #334155;
    --header-bg: rgba(15, 23, 42, 0.95);
    --header-text: #f1f5f9;
    --body-bg: #0f172a;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 1024px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .two-columns {
        flex-direction: column;
    }

    .main-tools,
    .sidebar {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .app-container {
        padding: 0 16px;
    }

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

    .search-btn {
        justify-content: center;
        padding: 12px;
    }
}

@media (max-width: 640px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .category-title {
        font-size: 1.1rem;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tool-card {
    animation: fadeIn 0.3s ease forwards;
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--border-light, #e2e8f0);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary, #3b82f6);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark, #2563eb);
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

input,
textarea,
select {
    background: var(--card-bg, #ffffff);
    color: var(--text-dark, #0f172a);
    border: 1px solid var(--border-light, #e2e8f0);
    border-radius: 8px;
    padding: 10px 14px;
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--primary, #3b82f6);
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* ============================================
   PERFORMANCE OPTIMIZATIONS
   ============================================ */

/* Use transform for animations instead of position */
.animate-on-scroll {
    will-change: transform, opacity;
}

/* Reduce repaints with GPU acceleration */
.back-to-top {
    position: fixed;
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* Optimize font loading */
@font-face {
    font-display: swap;
}

/* Prevent layout shifts */
img,
video,
iframe {
    max-width: 100%;
    height: auto;
}

/* Lazy loading optimization */
img[loading="lazy"] {
    content-visibility: auto;
}