/* Userology Help Center - Clean Professional Design */

:root {
    /* Colors - Clean and Professional */
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-primary-light: #60a5fa;

    --color-text: #111827;
    --color-text-light: #6b7280;
    --color-text-lighter: #9ca3af;

    --color-bg: #ffffff;
    --color-bg-gray: #f9fafb;
    --color-bg-light: #f3f4f6;

    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", Monaco, Consolas, monospace;

    /* Shadows - Subtle */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 16px -4px rgba(0, 0, 0, 0.12);

    /* Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg-gray);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Remove ALL underlines from links globally */
a {
    text-decoration: none;
    color: inherit;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ========== HEADER ========== */
.header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-6) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
}

.header-branding {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.header-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.header-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
    line-height: 1.2;
}

.header-text p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin: 0;
}

/* ========== SEARCH ========== */
.search-container {
    flex: 1;
    max-width: 500px;
}

.search-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    transition: all 0.2s;
    background: var(--color-bg);
}

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

.search-input::placeholder {
    color: var(--color-text-lighter);
}

/* ========== NAVIGATION ========== */
.nav {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.nav ul {
    list-style: none;
    display: flex;
    gap: var(--space-2);
}

.nav a {
    display: block;
    padding: var(--space-4) var(--space-5);
    color: var(--color-text-light);
    font-weight: 500;
    font-size: 0.9375rem;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

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

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

/* ========== MAIN LAYOUT ========== */
.main {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: var(--space-8);
    margin: var(--space-8) 0;
    align-items: start;
}

/* Pages without sidebar (categories, articles) */
.main:not(:has(.sidebar)) {
    grid-template-columns: 1fr;
    max-width: 1400px;
    margin: var(--space-8) auto;
}

/* ========== SIDEBAR ========== */
.sidebar {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    position: sticky;
    top: 140px;
}

.sidebar h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 var(--space-4) 0;
}

.sidebar ul {
    list-style: none;
}

.sidebar a {
    display: block;
    padding: var(--space-3) var(--space-4);
    color: var(--color-text-light);
    font-size: 0.9375rem;
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

.sidebar a:hover {
    color: var(--color-primary);
    background: var(--color-bg-light);
}

/* ========== CONTENT AREA ========== */
.content {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-10);
    min-height: 500px;
}

/* Content without sidebar - more breathing room */
.main:not(:has(.sidebar)) .content {
    padding: var(--space-12);
    border: none;
    background: transparent;
}

.content h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 var(--space-6) 0;
    line-height: 1.2;
}

.content > p {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    margin: 0 0 var(--space-8) 0;
}

.content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin: var(--space-12) 0 var(--space-6) 0;
}

/* First h2 (like "Popular Articles") */
.content h2:first-of-type {
    margin-top: var(--space-10);
}

.content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin: var(--space-8) 0 var(--space-4) 0;
}

.content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin: var(--space-6) 0 var(--space-3) 0;
}

.content p {
    margin: 0 0 var(--space-4) 0;
    line-height: 1.7;
}

.content a {
    color: var(--color-primary);
    font-weight: 500;
}

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

.content ul,
.content ol {
    margin: var(--space-4) 0;
    padding-left: var(--space-8);
}

.content li {
    margin-bottom: var(--space-2);
    line-height: 1.7;
}

.content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--space-6) 0;
}

/* YouTube embeds */
.youtube-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    margin: var(--space-8) 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.youtube-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* ========== ARTICLE GRID - PROPER GRID LAYOUT ========== */
.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-8);
    margin: var(--space-8) 0 0 0;
}

/* Home page - 2 column max */
.main:has(.sidebar) .article-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

/* Categories/Articles pages - 3 column */
.main:not(:has(.sidebar)) .article-grid {
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: var(--space-6);
}

/* Single category - center it and make it bigger */
.article-grid:has(:only-child) {
    grid-template-columns: 1fr;
    max-width: 600px;
}

.article-grid:has(:only-child) .article-card {
    padding: var(--space-10);
    min-height: 200px;
    text-align: center;
    justify-content: center;
}

/* ========== ARTICLE CARDS - CLEAN & MINIMAL ========== */
.article-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition: all 0.2s ease;
    cursor: pointer;
    min-height: 140px;
}

/* Remove any text decoration on card and children */
.article-card,
.article-card *,
.article-card:hover,
.article-card:hover * {
    text-decoration: none !important;
}

.article-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.article-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.5;
    margin: 0 0 auto 0;
    flex-grow: 1;
    transition: color 0.2s;
}

.article-card:hover h3 {
    color: var(--color-primary);
}

.article-card .article-meta {
    font-size: 0.875rem;
    color: var(--color-text-lighter);
    margin: var(--space-4) 0 0 0;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-light);
}

/* Legacy article items */
.article-list {
    display: grid;
    gap: var(--space-4);
}

.article-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    transition: all 0.2s;
}

.article-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.article-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0 0 var(--space-2) 0;
}

.article-item h3 a {
    color: var(--color-text);
}

.article-item h3 a:hover {
    color: var(--color-primary);
}

.article-meta {
    font-size: 0.875rem;
    color: var(--color-text-lighter);
}

.article-excerpt {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-top: var(--space-2);
}

/* Breadcrumb */
.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    color: var(--color-text-lighter);
    margin-bottom: var(--space-6);
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-light);
    border-radius: var(--radius-md);
}

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

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

/* ========== FOOTER ========== */
.footer {
    background: var(--color-text);
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    padding: var(--space-12) 0;
    margin-top: var(--space-16);
}

.footer p {
    font-size: 0.875rem;
    margin: 0;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .main {
        grid-template-columns: 1fr;
    }

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

    .content {
        order: 1;
    }

    .article-grid,
    .main:has(.sidebar) .article-grid,
    .main:not(:has(.sidebar)) .article-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-4);
    }

    .header-content {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-4);
    }

    .search-container {
        max-width: none;
    }

    .nav ul {
        flex-direction: column;
        gap: 0;
    }

    .nav a {
        border-bottom: none;
        border-left: 2px solid transparent;
    }

    .nav a.active {
        border-left-color: var(--color-primary);
    }

    .content {
        padding: var(--space-6);
    }

    .content h1 {
        font-size: 1.75rem;
    }

    .article-grid,
    .main:has(.sidebar) .article-grid,
    .main:not(:has(.sidebar)) .article-grid {
        grid-template-columns: 1fr;
        gap: var(--space-5);
    }

    .main:not(:has(.sidebar)) .content {
        padding: var(--space-6);
    }
}

@media (max-width: 480px) {
    .content {
        padding: var(--space-5);
    }

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

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

/* Print styles */
@media print {
    .nav,
    .sidebar,
    .footer,
    .search-container {
        display: none;
    }

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

    .content {
        border: none;
        box-shadow: none;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* ========== VIDEO GRID & CARDS ========== */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: var(--space-8);
    margin: var(--space-8) 0 0 0;
}

.video-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.2s ease;
}

.video-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.video-thumbnail {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--color-bg-light);
    overflow: hidden;
    position: relative;
}

.video-thumbnail video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    background: #000;
}

.video-info {
    padding: var(--space-6);
    flex: 1;
}

.video-info h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
    margin: 0 0 var(--space-3) 0;
}

.video-description {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin: 0;
}

/* Video player responsive */
@media (max-width: 768px) {
    .video-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
}

/* ========== TOPIC CARDS (for Browse Topics page) ========== */
.topic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-6);
    margin: var(--space-8) 0 var(--space-12) 0;
}

.topic-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition: all 0.2s ease;
    cursor: pointer;
    text-align: center;
}

.topic-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.topic-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    line-height: 1;
}

.topic-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0 0 var(--space-3) 0;
    line-height: 1.3;
}

.topic-description {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin: 0 0 var(--space-4) 0;
    flex-grow: 1;
}

.topic-meta {
    font-size: 0.875rem;
    color: var(--color-text-lighter);
    font-weight: 500;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-light);
}

/* Topic grid responsive */
@media (max-width: 768px) {
    .topic-grid {
        grid-template-columns: 1fr;
        gap: var(--space-5);
    }
}