/**
 * RIVUS360 Docs - Documentation Styles
 * =====================================
 * BEM Notation, Mobile-First, CSS Custom Properties
 */

/* =============================================================================
   DOCS HERO (GitHub-Style)
   ============================================================================= */

.docs-hero {
    position: relative;
    background: linear-gradient(180deg, #0d1117 0%, #161b22 100%);
    padding: 5rem 2rem;
    overflow: hidden;
    text-align: center;
}

.docs-hero__content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.docs-hero__title {
    font-size: 3.5rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.docs-hero__subtitle {
    font-size: 1.25rem;
    color: #8b949e;
    margin: 0 0 2rem 0;
    line-height: 1.5;
}

/* Hero Search */
.docs-hero__search {
    max-width: 600px;
    margin: 0 auto;
}

.docs-hero__search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.docs-hero__search-icon {
    position: absolute;
    left: 1rem;
    color: #8b949e;
    pointer-events: none;
}

.docs-hero__search-input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    font-size: 1rem;
    color: #c9d1d9;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.docs-hero__search-input::placeholder {
    color: #6e7681;
}

.docs-hero__search-input:focus {
    outline: none;
    border-color: #58a6ff;
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

/* Decorative Elements */
.docs-hero__decoration {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    z-index: 1;
}

.docs-hero__decoration--left {
    left: -100px;
    bottom: -150px;
    background: linear-gradient(135deg, #ec6ead 0%, #3494e6 100%);
}

.docs-hero__decoration--right {
    right: -100px;
    top: -100px;
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

@media (max-width: 768px) {
    .docs-hero {
        padding: 3rem 1.5rem;
    }

    .docs-hero__title {
        font-size: 2.25rem;
    }

    .docs-hero__subtitle {
        font-size: 1rem;
    }

    .docs-hero__decoration {
        width: 250px;
        height: 250px;
    }
}

/* =============================================================================
   DOCS CATEGORIES SECTION
   ============================================================================= */

.docs-categories-section {
    padding: 4rem 0;
    background: var(--white);
}

.docs-categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem 2rem;
    margin-bottom: 4rem;
}

@media (max-width: 1100px) {
    .docs-categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 850px) {
    .docs-categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem 1.5rem;
    }
}

@media (max-width: 550px) {
    .docs-categories-grid {
        grid-template-columns: 1fr;
    }
}

/* Category Block */
.docs-category-block {
    min-width: 0;
}

.docs-category-block__header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.docs-category-block__header a {
    color: inherit;
    text-decoration: none;
    transition: color 0.15s ease;
}

.docs-category-block__header a:hover {
    color: var(--primary);
}

.docs-category-block__icon {
    font-size: 1.125rem;
    flex-shrink: 0;
}

.docs-category-block__links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.docs-category-block__links li {
    margin-bottom: 0.5rem;
}

.docs-category-block__links a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9375rem;
    line-height: 1.4;
    transition: color 0.15s ease;
}

.docs-category-block__links a:hover {
    text-decoration: underline;
}

.docs-category-block__empty {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-style: italic;
}

.docs-category-block__more {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.15s ease;
}

.docs-category-block__more:hover {
    color: var(--primary);
}

/* =============================================================================
   DOCS EMPTY STATE
   ============================================================================= */

.docs-empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--light);
    border-radius: var(--radius);
    border: 1px dashed var(--border-color);
}

.docs-empty-state__icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.docs-empty-state__title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.docs-empty-state__text {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* =============================================================================
   DOCS FEATURED SECTIONS
   ============================================================================= */

.docs-featured-sections {
    border-top: 1px solid var(--border-color);
    padding-top: 3rem;
}

.docs-featured {
    margin-bottom: 3rem;
}

.docs-featured:last-child {
    margin-bottom: 0;
}

.docs-featured__title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.docs-featured__title-icon {
    font-size: 1.25rem;
}

.docs-featured__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

.docs-featured-card {
    display: block;
    padding: 1.5rem;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.docs-featured-card:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
    text-decoration: none;
}

.docs-featured-card__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.docs-featured-card__excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* =============================================================================
   DOCS SEARCH PAGE
   ============================================================================= */

.docs-search-form {
    display: flex;
    gap: 0.5rem;
    max-width: 600px;
    margin: 0 auto;
}

.docs-search-form--large {
    max-width: 800px;
    flex-direction: column;
}

.docs-search-row {
    display: flex;
    gap: 0.5rem;
}

.docs-search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
}

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

.docs-search-filters {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.docs-search-filters .form-group {
    flex: 1;
}

.docs-search-results {
    margin-top: 2rem;
}

.docs-search-results h2 {
    margin-bottom: 1.5rem;
}

/* =============================================================================
   DOCS LAYOUT (Two Column for Article Pages)
   ============================================================================= */

.docs-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
    align-items: start;
    padding: 2rem 0;
}

@media (max-width: 900px) {
    .docs-layout {
        grid-template-columns: 1fr;
    }
}

.docs-content {
    min-width: 0;
}

/* =============================================================================
   DOCS SIDEBAR
   ============================================================================= */

.docs-sidebar {
    position: sticky;
    top: 5rem;
    background: var(--light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.25rem;
    max-height: calc(100vh - 6rem);
    overflow-y: auto;
}

@media (max-width: 900px) {
    .docs-sidebar {
        position: static;
        max-height: none;
    }
}

.docs-sidebar__header {
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.docs-sidebar__home {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

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

.docs-sidebar__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.docs-sidebar__item {
    margin-bottom: 0.25rem;
}

.docs-sidebar__link {
    display: block;
    padding: 0.5rem 0.75rem;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius);
    font-size: 0.9375rem;
    transition: all 0.15s ease;
}

.docs-sidebar__link:hover {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
}

.docs-sidebar__item--active > .docs-sidebar__link {
    background: var(--primary);
    color: white;
}

.docs-sidebar__icon {
    margin-right: 0.5rem;
}

.docs-sidebar__sublist {
    list-style: none;
    padding: 0;
    margin: 0.25rem 0 0 1rem;
    border-left: 1px solid var(--border-color);
}

.docs-sidebar__sublink {
    display: block;
    padding: 0.375rem 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.15s ease;
}

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

/* =============================================================================
   DOCS BREADCRUMB
   ============================================================================= */

/* =============================================================================
   WIDE DOCS CONTAINER
   Documentation pages use a wider container than the global 1200px cap (which
   felt too narrow), but stay bounded so there is comfortable breathing room
   on the left and right on large screens.
   ============================================================================= */
.container.docs-container {
    max-width: 1400px;
    padding: 0 2.5rem;
}

@media (max-width: 768px) {
    .container.docs-container {
        padding: 0 1.25rem;
    }
}

.docs-breadcrumb {
    margin-bottom: 1.5rem;
    padding-top: 1.5rem;
}

.docs-breadcrumb__list {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 0.875rem;
}

.docs-breadcrumb__item {
    display: flex;
    align-items: center;
}

.docs-breadcrumb__item:not(:last-child)::after {
    content: "/";
    margin: 0 0.5rem;
    color: var(--text-secondary);
}

.docs-breadcrumb__item a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.15s ease;
}

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

.docs-breadcrumb__item--current {
    color: var(--text-primary);
    font-weight: 500;
}

/* =============================================================================
   DOCS ARTICLE (Full View)
   ============================================================================= */

.docs-article {
    background: var(--white);
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

.docs-article__header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.docs-article__header h1 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.docs-article__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.docs-article__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.docs-article__content {
    line-height: 1.8;
    font-size: 1.0625rem;
}

.docs-article__content h2 {
    font-size: 1.5rem;
    margin: 2.5rem 0 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.docs-article__content h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.docs-article__content h3 {
    font-size: 1.25rem;
    margin: 2rem 0 0.75rem;
}

.docs-article__content p {
    margin-bottom: 1rem;
}

.docs-article__content ul,
.docs-article__content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.docs-article__content li {
    margin-bottom: 0.5rem;
}

.docs-article__content code {
    background: var(--light);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
}

.docs-article__content pre {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 1.25rem;
    border-radius: var(--radius);
    overflow-x: auto;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    line-height: 1.6;
}

.docs-article__content pre code {
    background: transparent;
    padding: 0;
    color: inherit;
    font-size: inherit;
}

.docs-article__content blockquote {
    border-left: 4px solid var(--primary);
    padding: 1rem 1.25rem;
    margin: 1.5rem 0;
    background: var(--light);
    border-radius: 0 var(--radius) var(--radius) 0;
}

.docs-article__content blockquote p:last-child {
    margin-bottom: 0;
}

.docs-article__content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    margin: 1rem 0;
}

.docs-article__content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}

.docs-article__content th,
.docs-article__content td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

.docs-article__content th {
    background: var(--light);
    font-weight: 600;
}

.docs-article__content a {
    color: var(--primary);
    text-decoration: none;
}

.docs-article__content a:hover {
    text-decoration: underline;
}

/* Related Articles */
.docs-article__related {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.docs-article__related h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    border: none;
    padding: 0;
}

.docs-related-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.docs-related-list li {
    margin-bottom: 0.5rem;
}

.docs-related-list a {
    color: var(--primary);
    text-decoration: none;
}

.docs-related-list a:hover {
    text-decoration: underline;
}

/* =============================================================================
   DOCS TAGS
   ============================================================================= */

.docs-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--light);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.15s ease;
}

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

.docs-tag--small {
    padding: 0.125rem 0.5rem;
    font-size: 0.6875rem;
}

/* =============================================================================
   DOCS CATEGORY PAGE
   ============================================================================= */

.docs-category-header {
    margin-bottom: 2rem;
}

.docs-category-header h1 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 2rem;
}

.docs-category-header__icon {
    font-size: 2rem;
}

.docs-category-header__count {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

/* Subcategories */
.docs-subcategories {
    margin-bottom: 2rem;
}

.docs-subcategory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.docs-subcategory-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: all 0.15s ease;
}

.docs-subcategory-card:hover {
    border-color: var(--primary);
    background: var(--white);
}

.docs-subcategory-card__icon {
    font-size: 1.5rem;
}

.docs-subcategory-card__title {
    font-weight: 500;
}

/* Article List in Category */
.docs-article-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.docs-article-list__item {
    border-bottom: 1px solid var(--border-color);
}

.docs-article-list__item:last-child {
    border-bottom: none;
}

.docs-article-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    text-decoration: none;
    color: inherit;
    transition: color 0.15s ease;
}

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

.docs-article-link__title {
    font-weight: 500;
}

.docs-article-link__category,
.docs-article-link__views {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Article Grid (Cards) */
.docs-article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.docs-article-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.2s ease;
}

.docs-article-card:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.docs-article-card__link {
    display: block;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
}

.docs-article-card__link:hover .docs-article-card__title {
    color: var(--primary);
}

.docs-article-card__title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    transition: color 0.15s ease;
}

.docs-article-card__excerpt {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.docs-article-card__meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.docs-article-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-top: 0.75rem;
}

/* =============================================================================
   LEGACY STYLES (kept for compatibility)
   ============================================================================= */

.docs-header {
    text-align: center;
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.docs-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.docs-header__subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.docs-empty {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.docs-empty .btn {
    margin-top: 1rem;
}

.docs-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.docs-section {
    margin-bottom: 3rem;
}

.docs-section__title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

/* Old category cards (kept for category listing page) */
.docs-categories {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.docs-category-card {
    display: block;
    padding: 1.5rem;
    background: var(--light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

.docs-category-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border-color: var(--primary);
}

.docs-category-card__icon {
    display: block;
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.docs-category-card__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.docs-category-card__count {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* =============================================================================
   DASHBOARD DOCS SPECIFIC
   ============================================================================= */

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.dashboard-header h1 {
    margin: 0;
}

.dashboard-header__actions {
    display: flex;
    gap: 0.5rem;
}

.docs-form {
    max-width: 900px;
}

.form-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--light);
    border-radius: var(--radius);
}

.form-section h2 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.form-group--half {
    flex: 1;
    min-width: 200px;
}

.form-group--quarter {
    flex: 0 0 120px;
}

.form-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 2rem;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.inline-form {
    display: inline;
}

.btn-group {
    display: flex;
    gap: 0.25rem;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge--success {
    background: rgba(34, 197, 94, 0.1);
    color: #16a34a;
}

.badge--warning {
    background: rgba(234, 179, 8, 0.1);
    color: #ca8a04;
}

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

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
}

.table tbody tr:hover {
    background: var(--light);
}

.form-card {
    max-width: 600px;
    padding: 2rem;
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.form-help {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.form-error {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--danger);
}

/* Form Tabs */
.form-tabs {
    margin: 2rem 0;
}

.form-tabs__header {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.form-tabs__tab {
    padding: 0.75rem 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.15s ease;
}

.form-tabs__tab:hover {
    color: var(--text-primary);
}

.form-tabs__tab--active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.form-tabs__content {
    display: none;
}

.form-tabs__content--active {
    display: block;
}