/* ===== CSS VARIABLES ===== */
:root {
    /* Colors from product site */
    --color-primary: #0A4B8F;
    --color-primary-hover: #073763;
    --color-accent: #DAA520;
    --color-sky-light: #1E6BBF;

    /* Neutrals */
    --color-white: #FFFFFF;
    --color-off-white: #F8F9FA;
    --color-gray-50: #FAFAFA;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #E5E5E5;
    --color-gray-300: #D4D4D4;
    --color-gray-400: #A3A3A3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

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

    /* Layout */
    --sidebar-width: 280px;
    --header-height: 64px;
    --border-radius: 8px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition: 200ms ease-in-out;
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* ===== HEADER ===== */
.docs-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 100;
}

.header-container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
}

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

.brand-logo {
    height: 32px;
    width: auto;
}

.brand-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-900);
}

.brand-subtitle {
    color: var(--color-gray-500);
    font-weight: 400;
}

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

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-gray-600);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-gray-100);
}

/* ===== MAIN CONTAINER ===== */
.docs-container {
    display: flex;
    padding-top: var(--header-height);
    min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.docs-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background-color: var(--color-white);
    border-right: 1px solid var(--color-gray-200);
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-content {
    padding: var(--spacing-lg);
}

/* Search Container */
.search-container {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--color-gray-400);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 10px 70px 10px 40px;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius);
    background-color: var(--color-gray-50);
    color: var(--color-gray-800);
    transition: all var(--transition);
}

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

.search-input:disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.search-badge {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-gray-500);
    background-color: var(--color-gray-100);
    padding: 2px 8px;
    border-radius: 12px;
}

/* Sidebar Navigation */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.nav-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-xs);
}

.nav-section-title.active {
    color: var(--color-primary);
}

.nav-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.nav-items {
    display: flex;
    flex-direction: column;
}

.nav-item {
    display: block;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-gray-700);
    padding: 6px 12px;
    border-radius: 6px;
    transition: all var(--transition);
}

.nav-item:hover {
    color: var(--color-primary);
    background-color: var(--color-gray-100);
}

.nav-item.active {
    color: var(--color-primary);
    background-color: var(--color-primary);
    background-color: rgba(10, 75, 143, 0.08);
    font-weight: 500;
}

/* Sidebar Footer */
.sidebar-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

.footer-text {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xs);
}

.footer-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
}

.footer-link:hover {
    text-decoration: underline;
}

/* ===== MAIN CONTENT AREA ===== */
.docs-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: var(--spacing-2xl);
    max-width: 900px;
}

.docs-content {
    max-width: 760px;
}

/* Content Hero */
.content-hero {
    margin-bottom: var(--spacing-2xl);
}

.content-title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.content-subtitle {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--color-gray-600);
}

/* Section Headings */
.section-heading {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-lg);
}

/* Quick Start Section */
.quick-start-section {
    margin-bottom: var(--spacing-2xl);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.help-card {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg);
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

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

.card-icon-wrapper {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(10, 75, 143, 0.08);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.card-icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
}

.card-description {
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.card-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-primary);
}

.help-card:hover .card-link {
    text-decoration: underline;
}

/* Popular Topics Section */
.popular-topics-section {
    margin-bottom: var(--spacing-2xl);
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-xl);
}

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

.topic-heading {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-xs);
}

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

.topic-list li a {
    font-size: 0.9375rem;
    color: var(--color-gray-700);
    transition: color var(--transition);
}

.topic-list li a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Help CTA Section */
.help-cta-section {
    margin-bottom: var(--spacing-2xl);
}

.help-cta-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-sky-light) 100%);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    text-align: center;
}

.cta-heading {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.cta-description {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.button-icon {
    width: 20px;
    height: 20px;
}

/* ===== ARTICLE STYLES ===== */
.article-header {
    margin-bottom: var(--spacing-xl);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
}

.breadcrumb-link {
    color: var(--color-gray-600);
}

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

.breadcrumb-separator {
    color: var(--color-gray-400);
}

.breadcrumb-current {
    color: var(--color-gray-900);
    font-weight: 500;
}

.article-title {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.article-description {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--color-gray-600);
}

/* Article Content */
.article-content {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-gray-800);
}

.article-content h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.article-content h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

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

.article-content ul,
.article-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.article-content ul {
    list-style: disc;
}

.article-content ol {
    list-style: decimal;
}

.article-content li {
    margin-bottom: var(--spacing-xs);
}

.article-content a {
    color: var(--color-primary);
    text-decoration: underline;
}

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

.article-content code {
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 0.875em;
    background-color: var(--color-gray-100);
    padding: 2px 6px;
    border-radius: 4px;
}

.article-content pre {
    background-color: var(--color-gray-900);
    color: var(--color-gray-100);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

.article-content pre code {
    background-color: transparent;
    padding: 0;
    color: var(--color-gray-100);
}

/* Info Boxes */
.info-box {
    padding: var(--spacing-md);
    background-color: rgba(10, 75, 143, 0.05);
    border-left: 3px solid var(--color-primary);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.info-box.tip {
    background-color: rgba(34, 197, 94, 0.05);
    border-left-color: #22C55E;
}

.info-box.warning {
    background-color: rgba(251, 191, 36, 0.05);
    border-left-color: #FBBF24;
}

.info-box.note {
    background-color: rgba(139, 92, 246, 0.05);
    border-left-color: #8B5CF6;
}

/* Screenshot Placeholders */
.screenshot-placeholder {
    background-color: var(--color-gray-200);
    border: 2px dashed var(--color-gray-300);
    border-radius: var(--border-radius);
    padding: var(--spacing-2xl);
    text-align: center;
    margin: var(--spacing-lg) 0;
}

.screenshot-placeholder svg {
    width: 64px;
    height: 64px;
    color: var(--color-gray-400);
    margin: 0 auto var(--spacing-sm);
}

.screenshot-placeholder p {
    color: var(--color-gray-500);
    font-size: 0.875rem;
    margin: 0;
}

/* Video Placeholders */
.video-placeholder {
    background-color: var(--color-gray-900);
    border-radius: var(--border-radius);
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.video-placeholder svg {
    width: 80px;
    height: 80px;
    color: var(--color-white);
    opacity: 0.3;
}

/* Related Articles */
.related-articles {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid var(--color-gray-200);
}

.related-articles h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

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

.related-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background-color: var(--color-gray-100);
    border-radius: var(--border-radius);
    font-size: 0.9375rem;
    color: var(--color-gray-700);
    transition: all var(--transition);
}

.related-link:hover {
    background-color: var(--color-gray-200);
    color: var(--color-primary);
}

.related-link svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .docs-sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition);
    }

    .docs-sidebar.open {
        transform: translateX(0);
    }

    .docs-main {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    .docs-main {
        padding: var(--spacing-lg);
    }

    .content-title {
        font-size: 2rem;
    }

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

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