/* ============================================================================
   Documentation Page Styles
   Requires: hrd_design_system.css (CSS variables)
   Scoped to .hrd-doc-* — no impact on other pages.
   ============================================================================ */

/* ===== Page Wrapper ===== */

.hrd-doc-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 2.5rem 5rem;
}

/* ===== Two-column Body ===== */

.hrd-doc-body {
    display: flex;
    gap: 3.5rem;
    align-items: flex-start;
}

/* ===== Hero Header ===== */

.hrd-doc-header-hero {
    background: linear-gradient(135deg, #1a1040 0%, #5b21b6 60%, var(--hrd-purple) 100%);
    border-radius: var(--radius-xl);
    padding: 2rem 2.5rem;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.hrd-doc-hero-badge {
    position: absolute;
    top: 1.25rem;
    right: 1.5rem;
    display: inline-block;
    padding: 0.2rem 0.75rem;
    background: rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.hrd-doc-hero-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.hrd-doc-hero-breadcrumb-link {
    color: rgba(255, 255, 255, 0.45);
    text-decoration: none;
    font-size: var(--font-size-base);
    transition: color var(--transition-fast);
}

.hrd-doc-hero-breadcrumb-link:hover {
    color: rgba(255, 255, 255, 0.75);
}

.hrd-doc-hero-breadcrumb-sep,
.hrd-doc-hero-breadcrumb-current {
    color: rgba(255, 255, 255, 0.35);
    font-size: var(--font-size-base);
}

.hrd-doc-hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 0.9rem;
    line-height: 1.15;
}

.hrd-doc-hero-description {
    color: rgba(255, 255, 255, 0.72);
    font-size: var(--font-size-lg);
    line-height: 1.65;
    margin: 0;
}

/* ===== Page Header (classic — for pages without nav_sections) ===== */

.hrd-doc-header {
    background: var(--bg-card);
    border-left: 6px solid var(--hrd-purple);
    border-radius: var(--radius-md);
    padding: 1.75rem 2rem;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-md);
}

.hrd-doc-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.9rem;
}

.hrd-doc-breadcrumb-link {
    color: var(--hrd-purple);
    text-decoration: none;
    font-size: var(--font-size-base);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.hrd-doc-breadcrumb-link:hover {
    color: var(--hrd-purple-dark);
    text-decoration: underline;
}

.hrd-doc-breadcrumb-sep,
.hrd-doc-breadcrumb-current {
    color: var(--text-muted);
    font-size: var(--font-size-base);
}

.hrd-doc-title-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.hrd-doc-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--hrd-purple);
    margin: 0;
    line-height: 1.2;
}

.hrd-doc-badge {
    display: inline-block;
    padding: 0.2rem 0.75rem;
    background: var(--bg-selected);
    color: var(--hrd-purple-dark);
    border-radius: 999px;
    font-size: var(--font-size-base);
    font-weight: 600;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.hrd-doc-header .hrd-doc-p {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    margin: 0;
    line-height: 1.65;
}

/* ===== Sidebar ===== */

.hrd-doc-sidebar {
    width: 192px;
    flex-shrink: 0;
    position: sticky;
    top: 1.5rem;
}

.hrd-doc-nav-heading {
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin: 0 0 0.75rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--border-color);
}

.hrd-doc-nav {
    display: flex;
    flex-direction: column;
}

.hrd-doc-nav-link {
    display: block;
    padding: 0.35rem 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-base);
    line-height: 1.5;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    transition: color var(--transition-fast), border-color var(--transition-fast),
    background var(--transition-fast);
}

.hrd-doc-nav-link:hover {
    color: var(--hrd-purple);
    border-left-color: var(--hrd-purple);
    background: var(--bg-selected);
}

/* ===== Main Content ===== */

.hrd-doc-content {
    flex: 1;
    min-width: 0;
}

/* ===== Sections ===== */

.hrd-doc-section {
    margin-bottom: 3rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-light);
}

.hrd-doc-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.hrd-doc-section-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 1.25rem;
    padding-bottom: 0.6rem;
    border-bottom: 2px solid var(--border-color);
    scroll-margin-top: 1.5rem;
}

.hrd-doc-h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 1.75rem 0 0.6rem;
}

.hrd-doc-p {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    line-height: 1.7;
    margin: 0 0 0.9rem;
}

.hrd-doc-link {
    color: var(--hrd-purple);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.hrd-doc-link:hover {
    color: var(--hrd-purple-dark);
    text-decoration: underline;
}

.hrd-doc-subsection-label {
    font-size: var(--font-size-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-muted);
    margin: 1.25rem 0 0.4rem;
}

/* ===== Definition List ===== */

.hrd-doc-dl {
    margin: 0 0 1rem;
    padding: 0;
    list-style: none;
}

.hrd-doc-def-item {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 0.4rem 1.5rem;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--border-light);
    align-items: baseline;
}

.hrd-doc-def-item:first-child {
    border-top: 1px solid var(--border-light);
}

.hrd-doc-dt {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    margin: 0;
}

.hrd-doc-dd {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    line-height: 1.6;
    margin: 0;
}

/* ===== Tables ===== */

.hrd-doc-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.5rem 0 1.25rem;
    font-size: var(--font-size-lg);
}

.hrd-doc-th {
    background: var(--bg-selected);
    color: var(--hrd-purple-dark);
    font-weight: 600;
    text-align: left;
    padding: 0.6rem 1rem;
    border-bottom: 2px solid var(--hrd-purple);
    font-size: var(--font-size-base);
    letter-spacing: 0.02em;
}

.hrd-doc-th:first-child {
    border-radius: var(--radius-sm) 0 0 0;
}

.hrd-doc-th:last-child {
    border-radius: 0 var(--radius-sm) 0 0;
}

.hrd-doc-td {
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    vertical-align: top;
    line-height: 1.55;
}

.hrd-doc-td:first-child {
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
}

tr:last-child .hrd-doc-td {
    border-bottom: none;
}

tr:hover .hrd-doc-td {
    background: var(--bg-hover);
}

/* ===== Callouts ===== */

.hrd-doc-callout {
    display: flex;
    gap: 0.75rem;
    align-items: baseline;
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius-md);
    margin: 1rem 0;
    font-size: var(--font-size-lg);
    line-height: 1.65;
}

.hrd-doc-callout-note {
    background: var(--info-light);
    border-left: 4px solid var(--info);
    color: #1e3a5f;
}

.hrd-doc-callout-tip {
    background: var(--success-light);
    border-left: 4px solid var(--success);
    color: #064e3b;
}

.hrd-doc-callout-warning {
    background: #fffbeb;
    border-left: 4px solid #f59e0b;
    color: #78350f;
}

.hrd-doc-callout-label {
    font-weight: 700;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    flex-shrink: 0;
}

.hrd-doc-callout-note .hrd-doc-callout-label {
    color: var(--info);
}

.hrd-doc-callout-tip .hrd-doc-callout-label {
    color: var(--success);
}

.hrd-doc-callout-warning .hrd-doc-callout-label {
    color: #d97706;
}

/* ===== FAQ ===== */

.hrd-doc-faq-item {
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--border-light);
}

.hrd-doc-faq-item:first-of-type {
    border-top: 1px solid var(--border-light);
}

.hrd-doc-faq-q {
    font-weight: 600;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    margin: 0 0 0.4rem;
}

.hrd-doc-faq-a {
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
    line-height: 1.65;
    margin: 0;
}

.hrd-doc-faq-a p {
    margin: 0 0 0.5rem;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.hrd-doc-faq-a ul {
    margin: 0;
    padding-left: 1.5rem;
}

.hrd-doc-faq-a li {
    margin-bottom: 0.3rem;
    line-height: 1.6;
}

.hrd-doc-contact {
    margin-top: 2rem;
    padding: 1rem 1.25rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

/* ===== Responsive ===== */

@media (max-width: 768px) {
    .hrd-doc-page {
        padding: 1.25rem 1.25rem 3rem;
    }

    .hrd-doc-body {
        flex-direction: column;
        gap: 2rem;
    }

    .hrd-doc-sidebar {
        width: 100%;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 1.25rem;
    }

    .hrd-doc-nav {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.25rem;
    }

    .hrd-doc-nav-link {
        border-left: none;
        border-bottom: 2px solid transparent;
        border-radius: var(--radius-sm);
        padding: 0.25rem 0.5rem;
    }

    .hrd-doc-nav-link:hover {
        border-left-color: transparent;
        border-bottom-color: var(--hrd-purple);
    }

    .hrd-doc-def-item {
        grid-template-columns: 1fr;
        gap: 0.2rem;
    }
}