/* ============================================================
   DOCUMENTATION STYLES - InfraPilot
   Professional technical documentation design
   Inspired by Stripe, Vercel, and Tailwind docs
   ============================================================ */

:root {
    --docs-bg: #ffffff;
    --docs-bg-alt: #fafbfc;
    --docs-sidebar-bg: #f6f8fa;
    --docs-border: #d0d7de;
    --docs-border-light: #e8ecef;
    --docs-text: #1a1f36;
    --docs-text-secondary: #525f7f;
    --docs-text-muted: #8792a2;
    --docs-primary: #0066ff;
    --docs-primary-dark: #0052cc;
    --docs-primary-light: rgba(0, 102, 255, 0.08);
    --docs-success: #00a67d;
    --docs-warning: #f5a623;
    --docs-code-bg: #1e293b;
    --docs-code-text: #e2e8f0;
    --docs-radius: 6px;
    --docs-radius-lg: 10px;
    --docs-shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
    --docs-shadow: 0 2px 8px rgba(0,0,0,0.08);
    --docs-shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --docs-transition: 120ms ease;
    --docs-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    --docs-font-mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, monospace;
}

/* ============================================================
   DOCUMENTATION HEADER
   ============================================================ */

.docs-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--docs-bg);
    border-bottom: 1px solid var(--docs-border-light);
    height: 56px;
}

.docs-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

.docs-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.docs-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.docs-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--docs-text);
    letter-spacing: -0.01em;
}

.docs-subtitle {
    font-size: 11px;
    color: var(--docs-text-muted);
    font-weight: 500;
}

/* ============================================================
   MAIN LAYOUT - 3 Column Grid
   ============================================================ */

.docs-layout {
    min-height: calc(100vh - 56px);
    background: var(--docs-bg);
}

.docs-grid {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr) 200px;
    max-width: 1400px;
    margin: 0 auto;
    min-height: calc(100vh - 56px);
}

/* ============================================================
   LEFT SIDEBAR - Navigation
   ============================================================ */

.docs-sidebar {
    position: sticky;
    top: 56px;
    height: calc(100vh - 56px);
    overflow-y: auto;
    padding: 24px 16px 32px 24px;
    border-right: 1px solid var(--docs-border-light);
    background: var(--docs-sidebar-bg);
    font-family: var(--docs-font);
}

.docs-sidebar::-webkit-scrollbar {
    width: 3px;
}

.docs-sidebar::-webkit-scrollbar-thumb {
    background: var(--docs-border);
    border-radius: 3px;
}

.docs-nav {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.docs-nav-section {
    display: flex;
    flex-direction: column;
}

.docs-nav-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--docs-text);
    margin-bottom: 10px;
    padding: 0 10px;
}

.docs-nav-title i {
    font-size: 13px;
    color: var(--docs-primary);
    opacity: 0.8;
}

.docs-nav-title .docs-nav-count {
    margin-left: auto;
    font-size: 10px;
    font-weight: 600;
    color: var(--docs-text-muted);
    background: var(--docs-bg);
    padding: 2px 6px;
    border-radius: 10px;
}

.docs-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.docs-nav-link {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 450;
    color: var(--docs-text-secondary);
    text-decoration: none;
    border-radius: 6px;
    border-left: 2px solid transparent;
    transition: var(--docs-transition);
    line-height: 1.4;
    background: transparent;
}

.docs-nav-link:hover {
    background: var(--docs-bg);
    color: var(--docs-text);
}

.docs-nav-link.active {
    background: var(--docs-bg);
    color: var(--docs-primary);
    font-weight: 600;
    border-left-color: var(--docs-primary);
    box-shadow: var(--docs-shadow-sm);
}

.docs-nav-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ============================================================
   MAIN CONTENT AREA
   ============================================================ */

.docs-main {
    padding: 40px 56px 80px;
    max-width: 100%;
    overflow: hidden;
    font-family: var(--docs-font);
    background: var(--docs-bg);
}

/* Welcome Section */
.docs-welcome {
    margin-bottom: 40px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--docs-border-light);
}

.docs-welcome h1 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--docs-text);
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 12px;
}

.docs-highlight {
    background: linear-gradient(135deg, var(--docs-primary) 0%, #4f46e5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.docs-welcome-lead {
    font-size: 16px;
    color: var(--docs-text-secondary);
    line-height: 1.65;
    max-width: 560px;
}

/* Quick Start */
.docs-quickstart {
    margin-bottom: 48px;
}

.docs-section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--docs-text);
    margin-bottom: 16px;
}

.docs-section-title i {
    color: var(--docs-primary);
    font-size: 16px;
}

.docs-section-desc {
    font-size: 14px;
    color: var(--docs-text-secondary);
    margin-bottom: 20px;
}

.docs-quickstart-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.docs-quickstart-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 20px;
    background: var(--docs-bg);
    border: 1px solid var(--docs-border-light);
    border-radius: var(--docs-radius-lg);
    text-decoration: none;
    transition: all 180ms ease;
}

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

.docs-quickstart-card.docs-qs-cta {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.06) 0%, rgba(79, 70, 229, 0.04) 100%);
    border-color: rgba(0, 102, 255, 0.15);
}

.docs-quickstart-card.docs-qs-cta:hover {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.1) 0%, rgba(79, 70, 229, 0.08) 100%);
    border-color: var(--docs-primary);
}

.docs-qs-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--docs-sidebar-bg);
    border-radius: var(--docs-radius-lg);
    flex-shrink: 0;
}

.docs-qs-icon i {
    font-size: 20px;
    color: var(--docs-primary);
}

.docs-qs-cta .docs-qs-icon {
    background: var(--docs-primary);
}

.docs-qs-cta .docs-qs-icon i {
    color: white;
}

.docs-qs-content {
    flex: 1;
    min-width: 0;
}

.docs-qs-content h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--docs-text);
    margin-bottom: 4px;
    line-height: 1.35;
}

.docs-qs-content p {
    font-size: 13px;
    color: var(--docs-text-secondary);
    line-height: 1.45;
    margin: 0;
}

.docs-qs-arrow {
    color: var(--docs-text-muted);
    font-size: 12px;
    margin-top: 4px;
    opacity: 0;
    transition: all 180ms ease;
}

.docs-quickstart-card:hover .docs-qs-arrow {
    opacity: 1;
    color: var(--docs-primary);
    transform: translateX(4px);
}

/* Category Sections */
.docs-category {
    margin-bottom: 40px;
}

.docs-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--docs-border-light);
}

.docs-category-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 700;
    color: var(--docs-text);
    margin: 0;
}

.docs-category-title i {
    font-size: 18px;
    color: var(--docs-primary);
}

.docs-category-count {
    font-size: 11px;
    font-weight: 600;
    color: var(--docs-text-muted);
    background: var(--docs-sidebar-bg);
    padding: 2px 8px;
    border-radius: 100px;
}

/* Articles List */
.docs-articles-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.docs-article-row {
    border-radius: var(--docs-radius-lg);
    transition: var(--docs-transition);
    background: var(--docs-bg);
    border: 1px solid var(--docs-border-light);
}

.docs-article-row:hover {
    border-color: var(--docs-primary);
    box-shadow: var(--docs-shadow);
    transform: translateY(-1px);
}

.docs-article-link {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    text-decoration: none;
    gap: 16px;
}

.docs-article-main {
    flex: 1;
    min-width: 0;
}

.docs-article-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--docs-text);
    margin-bottom: 4px;
    transition: var(--docs-transition);
    line-height: 1.35;
}

.docs-article-row:hover .docs-article-title {
    color: var(--docs-primary);
}

.docs-article-desc {
    font-size: 13px;
    color: var(--docs-text-secondary);
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.docs-article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.docs-meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: var(--docs-text-muted);
}

.docs-meta-item i {
    font-size: 12px;
    color: var(--docs-text-muted);
}

.docs-article-arrow {
    color: var(--docs-border);
    font-size: 14px;
    transition: var(--docs-transition);
}

.docs-article-row:hover .docs-article-arrow {
    color: var(--docs-primary);
    transform: translateX(2px);
}

/* Footer CTA */
.docs-footer-cta {
    margin-top: 48px;
    padding: 28px 32px;
    background: linear-gradient(135deg, var(--docs-sidebar-bg) 0%, #f0f4ff 100%);
    border: 1px solid var(--docs-border-light);
    border-radius: var(--docs-radius-lg);
}

.docs-cta-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.docs-cta-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--docs-primary);
    border-radius: var(--docs-radius);
    flex-shrink: 0;
}

.docs-cta-icon i {
    font-size: 18px;
    color: white;
}

.docs-cta-text {
    flex: 1;
}

.docs-cta-text h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--docs-text);
    margin-bottom: 2px;
}

.docs-cta-text p {
    font-size: 13px;
    color: var(--docs-text-secondary);
    margin: 0;
}

.docs-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    background: var(--docs-primary);
    color: white;
    font-size: 13px;
    font-weight: 550;
    border-radius: var(--docs-radius);
    text-decoration: none;
    white-space: nowrap;
    transition: var(--docs-transition);
}

.docs-cta-btn:hover {
    background: var(--docs-primary-dark);
    color: white;
}

.docs-cta-btn i {
    font-size: 11px;
    transition: transform 120ms;
}

.docs-cta-btn:hover i {
    transform: translateX(2px);
}

/* ============================================================
   RIGHT SIDEBAR - Resources
   ============================================================ */

.docs-toc {
    position: sticky;
    top: 56px;
    height: calc(100vh - 56px);
    overflow-y: auto;
    padding: 24px 24px 24px 20px;
    border-left: 1px solid var(--docs-border-light);
    font-family: var(--docs-font);
    background: var(--docs-bg);
}

.docs-toc-inner {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.docs-toc-section {
    display: flex;
    flex-direction: column;
}

.docs-toc-title {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--docs-text);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--docs-border-light);
}

.docs-toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.docs-toc-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--docs-text-secondary);
    text-decoration: none;
    padding: 6px 0;
    transition: var(--docs-transition);
    line-height: 1.4;
}

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

.docs-toc-link i {
    font-size: 12px;
    color: var(--docs-text-muted);
}

.docs-toc-link:hover i {
    color: var(--docs-primary);
}

/* ============================================================
   MOBILE NAVIGATION
   ============================================================ */

.docs-mobile-toggle {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 90;
    padding: 12px 16px;
    background: var(--docs-text);
    color: white;
    border: none;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 550;
    cursor: pointer;
    box-shadow: var(--docs-shadow-lg);
    gap: 6px;
    align-items: center;
    font-family: var(--docs-font);
}

.docs-mobile-toggle i {
    font-size: 16px;
}

.docs-mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 200;
    background: white;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform 250ms ease;
}

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

.docs-mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-bottom: 1px solid var(--docs-border-light);
    font-weight: 600;
    font-size: 14px;
    color: var(--docs-text);
}

.docs-mobile-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--docs-sidebar-bg);
    border: 1px solid var(--docs-border-light);
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    color: var(--docs-text);
}

.docs-mobile-nav-content {
    padding: 16px 20px;
}

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

@media (max-width: 1100px) {
    .docs-grid {
        grid-template-columns: 220px 1fr;
    }

    .docs-toc {
        display: none;
    }

    .docs-quickstart-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 860px) {
    .docs-grid {
        grid-template-columns: 1fr;
    }

    .docs-sidebar {
        display: none;
    }

    .docs-mobile-toggle {
        display: flex;
    }

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

    .docs-main {
        padding: 24px 20px 48px;
    }

    .docs-welcome h1 {
        font-size: 1.5rem;
    }

    .docs-quickstart-grid {
        grid-template-columns: 1fr;
    }

    .docs-cta-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 560px) {
    .docs-header {
        height: 52px;
    }

    .docs-header-inner {
        padding: 0 16px;
    }

    .docs-brand-text {
        display: none;
    }

    .docs-main {
        padding: 20px 16px 40px;
    }

    .docs-welcome h1 {
        font-size: 1.375rem;
    }

    .docs-welcome-lead {
        font-size: 14px;
    }

    .docs-article-link {
        padding: 10px 12px;
    }

    .docs-article-desc {
        display: none;
    }

    .docs-footer-cta {
        padding: 16px;
    }

    .docs-cta-icon {
        width: 40px;
        height: 40px;
    }

    .docs-cta-icon i {
        font-size: 16px;
    }

    .docs-cta-text h3 {
        font-size: 13px;
    }

    .docs-cta-text p {
        font-size: 12px;
    }
}