/**
 * HairStyleMojo Learn Section Styles
 * Matches the homepage design system: Playfair Display headings, DM Sans body,
 * blue #4A8FE7 accent, charcoal #2D3748 text, clean cards with subtle shadows.
 *
 * @package HelloBizChild
 * @since   2.0.0
 */

/* ==========================================================================
   VARIABLES
   ========================================================================== */
:root {
    --learn-max-width: 1140px;
    --learn-body-max: 680px;
    --learn-toc-width: 280px;
    --learn-gap: 60px;
    --learn-heading-font: 'Playfair Display', serif;
    --learn-body-font: 'DM Sans', sans-serif;
    --learn-text: #2D3748;
    --learn-text-secondary: #4A5568;
    --learn-text-muted: #718096;
    --learn-accent: #4A8FE7;
    --learn-accent-dark: #3A7BD5;
    --learn-accent-light: #EBF4FF;
    --learn-secondary: #6C63FF;
    --learn-border: #E2E8F0;
    --learn-bg: #fff;
    --learn-bg-subtle: #F7F8FC;
    --learn-link: #4A8FE7;
    --learn-link-hover: #3A7BD5;
    --learn-green: #38A169;
    --learn-green-dark: #276749;
    --learn-green-bg: #F0FFF4;
    --learn-blue: #4A8FE7;
    --learn-blue-dark: #2B6CB0;
    --learn-blue-bg: #EBF8FF;
    --learn-purple: #6C63FF;
    --learn-purple-dark: #553ACF;
    --learn-purple-bg: #F0EDFF;
    --learn-amber: #DD6B20;
    --learn-amber-dark: #C05621;
    --learn-amber-bg: #FFFAF0;
    --learn-radius: 16px;
    --learn-radius-sm: 12px;
    --learn-shadow: 0 4px 20px rgba(0,0,0,0.08);
    --learn-shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
    --learn-transition: 0.25s ease;
}

/* ==========================================================================
   HERO SECTION (Article Pages)
   ========================================================================== */
.hsm-learn-hero {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    min-height: 400px;
    background-color: #2D3748;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: flex-end;
}
.hsm-learn-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(45,55,72,0.75) 0%, rgba(45,55,72,0.65) 100%);
    z-index: 1;
}
.hsm-learn-hero-inner {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: var(--learn-max-width);
    margin: 0 auto;
    padding: 48px 24px 56px;
}

/* Breadcrumb */
.hsm-learn-breadcrumb {
    font-family: var(--learn-body-font);
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 20px;
}
.hsm-learn-breadcrumb,
.hsm-learn-breadcrumb a,
.hsm-learn-breadcrumb .current {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
}
.hsm-learn-breadcrumb a:hover {
    color: #fff;
}
.hsm-learn-breadcrumb .sep {
    margin: 0 6px;
    color: rgba(255,255,255,0.45);
}

/* Hero meta */
.hsm-learn-hero-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.hsm-learn-badge {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(4px);
    color: #fff;
    font-family: var(--learn-body-font);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 5px 12px;
    border-radius: 6px;
    text-transform: uppercase;
}
.hsm-learn-readtime {
    font-family: var(--learn-body-font);
    font-size: 13px;
    color: rgba(255,255,255,0.8);
}

/* Title */
.hsm-learn-title {
    font-family: var(--learn-heading-font);
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
    margin: 0 0 14px;
    max-width: 740px;
}

/* Subtitle */
.hsm-learn-subtitle {
    font-family: var(--learn-body-font);
    font-size: 18px;
    line-height: 1.6;
    color: rgba(255,255,255,0.9);
    margin: 0 0 16px;
    max-width: 640px;
    font-weight: 400;
}

/* Author */
.hsm-learn-hero .hsm-learn-author {
    font-family: var(--learn-body-font);
    font-size: 14px;
    color: rgba(255,255,255,0.75);
    margin: 0;
}
.hsm-learn-hero .hsm-learn-author strong {
    color: #fff;
    font-weight: 600;
}

/* ==========================================================================
   LAYOUT (content left + TOC right)
   ========================================================================== */
.hsm-learn-layout {
    max-width: var(--learn-max-width);
    margin: 56px auto 0;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr var(--learn-toc-width);
    gap: var(--learn-gap);
}

/* ==========================================================================
   TABLE OF CONTENTS (sticky right sidebar)
   ========================================================================== */
.hsm-learn-toc {
    position: relative;
    order: 2;
}
.hsm-learn-toc-inner {
    position: sticky;
    top: 80px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    padding: 24px;
    background: var(--learn-bg-subtle);
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius-sm);
}
.hsm-learn-toc-title {
    font-family: var(--learn-body-font);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--learn-text-muted);
    margin: 0 0 14px;
    text-transform: uppercase;
}
.hsm-learn-toc ul {
    list-style: none;
    padding: 0;
    margin: 0;
    border-left: 2px solid var(--learn-border);
}
.hsm-learn-toc li { margin: 0; padding: 0; }
.hsm-learn-toc a {
    display: block;
    padding: 7px 0 7px 16px;
    font-family: var(--learn-body-font);
    font-size: 13px;
    line-height: 1.4;
    color: var(--learn-text-secondary);
    text-decoration: none;
    border-left: 2px solid transparent;
    margin-left: -2px;
    transition: color var(--learn-transition), border-color var(--learn-transition);
}
.hsm-learn-toc a:hover,
.hsm-learn-toc a.active {
    color: var(--learn-accent);
    border-left-color: var(--learn-accent);
}

/* ==========================================================================
   ARTICLE BODY — Typography
   ========================================================================== */
.hsm-learn-body {
    max-width: var(--learn-body-max);
    font-family: var(--learn-body-font);
    font-size: 17px;
    line-height: 1.8;
    color: var(--learn-text);
    order: 1;
}
.hsm-learn-body h2 {
    font-family: var(--learn-heading-font);
    font-size: 28px;
    font-weight: 700;
    line-height: 1.3;
    margin: 52px 0 18px;
    color: var(--learn-text);
    scroll-margin-top: 80px;
}
.hsm-learn-body h2:first-child { margin-top: 0; }
.hsm-learn-body h3 {
    font-family: var(--learn-heading-font);
    font-size: 21px;
    font-weight: 600;
    line-height: 1.4;
    margin: 36px 0 14px;
    color: var(--learn-text);
}
.hsm-learn-body p { margin: 0 0 22px; }
.hsm-learn-body a {
    color: var(--learn-link);
    text-decoration: underline;
    text-decoration-color: rgba(74,143,231,0.3);
    text-underline-offset: 3px;
    transition: text-decoration-color var(--learn-transition), color var(--learn-transition);
}
.hsm-learn-body a:hover {
    text-decoration-color: var(--learn-link-hover);
    color: var(--learn-link-hover);
}
.hsm-learn-body ul,
.hsm-learn-body ol { margin: 0 0 24px; padding-left: 24px; }
.hsm-learn-body li { margin-bottom: 8px; line-height: 1.7; }
.hsm-learn-body strong { font-weight: 600; color: var(--learn-text); }
.hsm-learn-body hr {
    border: none;
    border-top: 1px solid var(--learn-border);
    margin: 44px 0;
}
.hsm-learn-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--learn-radius-sm);
    margin: 28px 0;
}

/* ==========================================================================
   KEY TAKEAWAYS BOX
   ========================================================================== */
.hsm-learn-takeaways {
    margin: 0 0 44px;
    padding: 28px 32px 24px;
    background: var(--learn-green-bg);
    border: 1px solid rgba(56,161,105,0.2);
    border-radius: var(--learn-radius-sm);
}
.hsm-learn-takeaways-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(56,161,105,0.15);
}
.hsm-learn-takeaways-icon {
    width: 24px;
    height: 24px;
    background: var(--learn-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.hsm-learn-takeaways-icon::after {
    content: '\2713';
    color: #fff;
    font-size: 13px;
    font-weight: 700;
}
.hsm-learn-takeaways-title {
    font-family: var(--learn-body-font);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--learn-green-dark);
    margin: 0;
}
.hsm-learn-takeaways ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.hsm-learn-takeaways li {
    position: relative;
    padding: 7px 0 7px 30px;
    font-family: var(--learn-body-font);
    font-size: 15px;
    line-height: 1.65;
    color: var(--learn-text);
    margin-bottom: 4px;
}
.hsm-learn-takeaways li::before {
    content: '\2713';
    position: absolute;
    left: 0;
    top: 7px;
    color: var(--learn-green);
    font-weight: 700;
    font-size: 14px;
}

/* ==========================================================================
   CALLOUT BOXES
   ========================================================================== */
.hsm-learn-callout {
    margin: 32px 0;
    padding: 22px 28px 18px;
    background: var(--learn-green-bg);
    border-left: 4px solid var(--learn-green);
    border-radius: 0 var(--learn-radius-sm) var(--learn-radius-sm) 0;
}
.hsm-learn-callout-label {
    display: block;
    font-family: var(--learn-body-font);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--learn-green-dark);
    margin-bottom: 8px;
}
.hsm-learn-callout p { font-size: 16px; }
.hsm-learn-callout p:last-child { margin-bottom: 0; }

/* Pro Tip — blue */
.hsm-learn-callout--tip {
    background: var(--learn-blue-bg);
    border-left-color: var(--learn-blue);
}
.hsm-learn-callout--tip .hsm-learn-callout-label {
    color: var(--learn-blue-dark);
}

/* Did You Know — purple */
.hsm-learn-callout--note {
    background: var(--learn-purple-bg);
    border-left-color: var(--learn-purple);
}
.hsm-learn-callout--note .hsm-learn-callout-label {
    color: var(--learn-purple-dark);
}

/* Common Mistake — amber */
.hsm-learn-callout--mistake {
    background: var(--learn-amber-bg);
    border-left-color: var(--learn-amber);
}
.hsm-learn-callout--mistake .hsm-learn-callout-label {
    color: var(--learn-amber-dark);
}

/* ==========================================================================
   FAQ ACCORDION
   ========================================================================== */
.hsm-learn-faq {
    margin: 44px 0 36px;
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    overflow: hidden;
}
.hsm-learn-faq-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 28px;
    background: var(--learn-bg-subtle);
    border-bottom: 1px solid var(--learn-border);
}
.hsm-learn-faq-header-title {
    font-family: var(--learn-heading-font);
    font-size: 16px;
    font-weight: 700;
    color: var(--learn-text);
    margin: 0;
}
.hsm-learn-faq-item {
    border-bottom: 1px solid var(--learn-border);
}
.hsm-learn-faq-item:last-child {
    border-bottom: none;
}
.hsm-learn-faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 18px 28px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--learn-body-font);
    font-size: 16px;
    font-weight: 600;
    color: var(--learn-text);
    text-align: left;
    line-height: 1.45;
    transition: background var(--learn-transition), color var(--learn-transition);
}
.hsm-learn-faq-q:hover {
    background: var(--learn-bg-subtle);
    color: var(--learn-accent);
}
.hsm-learn-faq-q::after {
    content: '+';
    font-size: 22px;
    font-weight: 300;
    color: var(--learn-accent);
    flex-shrink: 0;
    margin-left: 16px;
    transition: transform var(--learn-transition);
}
.hsm-learn-faq-item.open .hsm-learn-faq-q::after {
    content: '\2212';
}
.hsm-learn-faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.hsm-learn-faq-item.open .hsm-learn-faq-a {
    max-height: 600px;
}
.hsm-learn-faq-a-inner {
    padding: 0 28px 22px;
    font-family: var(--learn-body-font);
    font-size: 15px;
    line-height: 1.75;
    color: var(--learn-text-secondary);
}
.hsm-learn-faq-a-inner p { margin: 0 0 12px; }
.hsm-learn-faq-a-inner p:last-child { margin-bottom: 0; }

/* ==========================================================================
   SOURCES SECTION
   ========================================================================== */
.hsm-learn-sources {
    margin: 44px 0 16px;
    padding: 24px 28px 20px;
    background: var(--learn-bg-subtle);
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius-sm);
}
.hsm-learn-sources-title {
    font-family: var(--learn-body-font);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--learn-text-muted);
    margin: 0 0 14px;
}
.hsm-learn-sources ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.hsm-learn-sources li {
    padding: 5px 0;
    font-family: var(--learn-body-font);
    font-size: 13px;
    line-height: 1.55;
    color: var(--learn-text-secondary);
}
.hsm-learn-sources a {
    color: var(--learn-link);
    text-decoration: underline;
    text-decoration-color: rgba(74,143,231,0.3);
}
.hsm-learn-sources a:hover {
    color: var(--learn-link-hover);
    text-decoration-color: var(--learn-link-hover);
}

/* ==========================================================================
   RELATED ARTICLES
   ========================================================================== */
.hsm-learn-related {
    max-width: var(--learn-max-width);
    margin: 64px auto 0;
    padding: 0 24px;
}
.hsm-learn-related-title {
    font-family: var(--learn-heading-font);
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 28px;
    color: var(--learn-text);
}
.hsm-learn-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.hsm-learn-related-card {
    text-decoration: none;
    color: inherit;
    background: #fff;
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    overflow: hidden;
    transition: box-shadow var(--learn-transition), transform var(--learn-transition);
}
.hsm-learn-related-card:hover {
    box-shadow: var(--learn-shadow-hover);
    transform: translateY(-4px);
    color: inherit;
    text-decoration: none;
}
.hsm-learn-related-img {
    height: 180px;
    background: var(--learn-bg-subtle);
    background-size: cover;
    background-position: center;
}
.hsm-learn-related-content {
    padding: 20px 24px 24px;
}
.hsm-learn-related-content h3 {
    font-family: var(--learn-heading-font);
    font-size: 18px;
    font-weight: 600;
    line-height: 1.35;
    margin: 0 0 8px;
    color: var(--learn-text);
}
.hsm-learn-related-content p {
    font-family: var(--learn-body-font);
    font-size: 14px;
    line-height: 1.55;
    color: var(--learn-text-secondary);
    margin: 0 0 12px;
}
.hsm-learn-related-time {
    font-family: var(--learn-body-font);
    font-size: 12px;
    color: var(--learn-text-muted);
}

/* ==========================================================================
   CTA BANNER (Article Pages)
   ========================================================================== */
.hsm-learn-cta {
    max-width: var(--learn-max-width);
    margin: 56px auto 56px;
    padding: 44px 48px;
    background: linear-gradient(135deg, #4A8FE7 0%, #6C63FF 100%);
    border-radius: var(--learn-radius);
    text-align: center;
    color: #fff;
}
.hsm-learn-cta-title {
    font-family: var(--learn-heading-font);
    font-size: 26px;
    font-weight: 700;
    margin: 0 0 10px;
}
.hsm-learn-cta p {
    font-family: var(--learn-body-font);
    font-size: 16px;
    margin: 0 0 24px;
    opacity: 0.92;
}
.hsm-learn-cta-btn {
    display: inline-block;
    background: #fff;
    color: var(--learn-accent) !important;
    font-family: var(--learn-body-font);
    font-weight: 600;
    font-size: 16px;
    padding: 16px 32px;
    border-radius: var(--learn-radius-sm);
    text-decoration: none;
    transition: transform var(--learn-transition), box-shadow var(--learn-transition);
}
.hsm-learn-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
    text-decoration: none;
    color: var(--learn-accent) !important;
}

/* ==========================================================================
   RESPONSIVE — Article Pages
   ========================================================================== */
@media (max-width: 900px) {
    .hsm-learn-hero { min-height: 320px; }
    .hsm-learn-title { font-size: 32px; }
    .hsm-learn-subtitle { font-size: 16px; }
    .hsm-learn-layout {
        grid-template-columns: 1fr;
        gap: 0;
    }
    .hsm-learn-toc { display: none; }
    .hsm-learn-body { max-width: 100%; }
    .hsm-learn-body h2 { font-size: 24px; margin-top: 40px; }
    .hsm-learn-body h3 { font-size: 19px; }
    .hsm-learn-body { font-size: 16px; }
    .hsm-learn-related-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .hsm-learn-related-card {
        display: grid;
        grid-template-columns: 120px 1fr;
    }
    .hsm-learn-related-img { height: 100%; min-height: 100px; }
    .hsm-learn-cta { margin: 40px 16px; padding: 32px 24px; }
    .hsm-learn-takeaways { padding: 22px 24px 18px; }
    .hsm-learn-faq-q { padding: 16px 20px; font-size: 15px; }
    .hsm-learn-faq-a-inner { padding: 0 20px 18px; }
}

@media (max-width: 600px) {
    .hsm-learn-hero { min-height: 280px; }
    .hsm-learn-hero-inner { padding: 28px 16px 36px; }
    .hsm-learn-title { font-size: 26px; }
    .hsm-learn-breadcrumb { font-size: 12px; }
    .hsm-learn-hero-meta { gap: 8px; }
    .hsm-learn-body { font-size: 15px; line-height: 1.75; }
    .hsm-learn-body h2 { font-size: 22px; }
    .hsm-learn-related { padding: 0 16px; }
    .hsm-learn-takeaways li { font-size: 14px; padding-left: 26px; }
    .hsm-learn-cta-title { font-size: 22px; }
    .hsm-learn-cta-btn { padding: 14px 28px; font-size: 15px; }
}


/* ==========================================================================
   HUB PAGE — /learn/
   ========================================================================== */
.hsm-learn-hub {
    max-width: var(--learn-max-width);
    margin: 0 auto;
    padding: 0 24px;
    font-family: var(--learn-body-font);
    color: var(--learn-text);
}

/* Hub Hero */
.hsm-learn-hub-hero {
    text-align: center;
    padding: 80px 0 48px;
    position: relative;
}
.hsm-learn-hub-hero::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, var(--learn-accent), var(--learn-secondary));
    border-radius: 2px;
    margin: 0 auto;
}
.hsm-learn-hub-title {
    font-family: var(--learn-heading-font);
    font-size: 48px;
    font-weight: 700;
    margin: 0 0 18px;
    color: var(--learn-text);
    line-height: 1.15;
}
.hsm-learn-hub-subtitle {
    font-family: var(--learn-body-font);
    font-size: 19px;
    line-height: 1.65;
    color: var(--learn-text-secondary);
    max-width: 680px;
    margin: 0 auto 32px;
}

/* Pillar Cards Grid */
.hsm-learn-hub-pillars {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin: 0 0 80px;
}
.hsm-learn-hub-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--learn-text);
    background: #fff;
    border-radius: var(--learn-radius);
    padding: 36px 32px;
    border: 1px solid var(--learn-border);
    box-shadow: var(--learn-shadow);
    transition: transform var(--learn-transition), box-shadow var(--learn-transition), border-color var(--learn-transition);
    position: relative;
    overflow: hidden;
}
.hsm-learn-hub-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--learn-border);
    transition: background var(--learn-transition);
}
.hsm-learn-hub-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--learn-shadow-hover);
    text-decoration: none;
    color: var(--learn-text);
}
.hsm-learn-hub-card--types::before { background: var(--learn-green); }
.hsm-learn-hub-card--types:hover { border-color: var(--learn-green); }
.hsm-learn-hub-card--color::before { background: var(--learn-purple); }
.hsm-learn-hub-card--color:hover { border-color: var(--learn-purple); }
.hsm-learn-hub-card--health::before { background: var(--learn-blue); }
.hsm-learn-hub-card--health:hover { border-color: var(--learn-blue); }

.hsm-learn-hub-card-icon {
    font-size: 40px;
    margin-bottom: 18px;
    line-height: 1;
}
.hsm-learn-hub-card h2 {
    font-family: var(--learn-heading-font);
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 12px;
    line-height: 1.3;
}
.hsm-learn-hub-card p {
    font-family: var(--learn-body-font);
    font-size: 15px;
    line-height: 1.65;
    color: var(--learn-text-secondary);
    margin: 0 0 20px;
    flex-grow: 1;
}
.hsm-learn-hub-card-count {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--learn-body-font);
    font-size: 13px;
    font-weight: 600;
    color: var(--learn-accent);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.hsm-learn-hub-card-arrow {
    position: absolute;
    bottom: 32px;
    right: 32px;
    font-size: 20px;
    color: var(--learn-text-muted);
    transition: transform var(--learn-transition), color var(--learn-transition);
}
.hsm-learn-hub-card:hover .hsm-learn-hub-card-arrow {
    transform: translateX(6px);
    color: var(--learn-accent);
}

/* Connection Section */
.hsm-learn-hub-connect {
    max-width: 720px;
    margin: 0 auto 80px;
    text-align: center;
    padding: 48px 0;
    border-top: 1px solid var(--learn-border);
    border-bottom: 1px solid var(--learn-border);
}
.hsm-learn-hub-connect h2 {
    font-family: var(--learn-heading-font);
    font-size: 36px;
    font-weight: 700;
    margin: 0 0 18px;
    color: var(--learn-text);
    line-height: 1.2;
}
.hsm-learn-hub-connect p {
    font-family: var(--learn-body-font);
    font-size: 17px;
    line-height: 1.75;
    color: var(--learn-text-secondary);
    margin: 0 0 14px;
}

/* Hub CTA */
.hsm-learn-hub-cta {
    text-align: center;
    background: linear-gradient(135deg, #4A8FE7 0%, #6C63FF 100%);
    border-radius: var(--learn-radius);
    padding: 56px 40px;
    margin: 0 0 80px;
    color: #fff;
}
.hsm-learn-hub-cta h2 {
    font-family: var(--learn-heading-font);
    font-size: 32px;
    font-weight: 700;
    margin: 0 0 14px;
    color: #fff;
    line-height: 1.2;
}
.hsm-learn-hub-cta p {
    font-family: var(--learn-body-font);
    font-size: 17px;
    color: rgba(255,255,255,0.92);
    margin: 0 0 28px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}
.hsm-learn-hub-cta-btn {
    display: inline-block;
    background: #fff;
    color: var(--learn-accent) !important;
    padding: 16px 36px;
    border-radius: var(--learn-radius-sm);
    font-family: var(--learn-body-font);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: transform var(--learn-transition), box-shadow var(--learn-transition);
}
.hsm-learn-hub-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
    text-decoration: none;
    color: var(--learn-accent) !important;
}

/* Hub FAQ */
.hsm-learn-hub-faq {
    max-width: 720px;
    margin: 0 auto 80px;
}
.hsm-learn-hub-faq h2 {
    font-family: var(--learn-heading-font);
    font-size: 36px;
    font-weight: 700;
    margin: 0 0 28px;
    text-align: center;
    color: var(--learn-text);
    line-height: 1.2;
}
.hsm-learn-hub-faq .hsm-learn-faq-item {
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius-sm);
    margin-bottom: 12px;
    overflow: hidden;
    transition: box-shadow var(--learn-transition);
}
.hsm-learn-hub-faq .hsm-learn-faq-item:hover {
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}
.hsm-learn-hub-faq .hsm-learn-faq-item:last-child {
    border-bottom: 1px solid var(--learn-border);
}

/* ==========================================================================
   CATEGORY PAGE
   ========================================================================== */
.hsm-learn-category {
    max-width: var(--learn-max-width);
    margin: 0 auto;
    padding: 0 24px;
    font-family: var(--learn-body-font);
}
.hsm-learn-category-hero {
    padding: 56px 0 36px;
}
.hsm-learn-category-hero h1 {
    font-family: var(--learn-heading-font);
    font-size: 40px;
    font-weight: 700;
    margin: 0 0 14px;
    color: var(--learn-text);
    line-height: 1.2;
}
.hsm-learn-category-hero p,
.hsm-learn-category-desc {
    font-family: var(--learn-body-font);
    font-size: 17px;
    line-height: 1.65;
    color: var(--learn-text-secondary);
    max-width: 680px;
    margin: 0 0 10px;
}
.hsm-learn-category-nav {
    font-family: var(--learn-body-font);
    font-size: 14px;
    color: var(--learn-text-secondary);
    margin-bottom: 16px;
}
.hsm-learn-category-nav a {
    color: var(--learn-accent);
    text-decoration: none;
    transition: color var(--learn-transition);
}
.hsm-learn-category-nav a:hover {
    color: var(--learn-accent-dark);
    text-decoration: underline;
}
.hsm-learn-category-nav .sep {
    margin: 0 6px;
    color: var(--learn-border);
}

/* Article Grid */
.hsm-learn-article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
    margin: 0 0 80px;
}
.hsm-learn-article-card {
    display: block;
    text-decoration: none;
    color: var(--learn-text);
    background: #fff;
    border-radius: var(--learn-radius);
    border: 1px solid var(--learn-border);
    overflow: hidden;
    box-shadow: var(--learn-shadow);
    transition: transform var(--learn-transition), box-shadow var(--learn-transition);
}
.hsm-learn-article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--learn-shadow-hover);
    text-decoration: none;
    color: var(--learn-text);
}
.hsm-learn-article-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}
.hsm-learn-article-card-body {
    padding: 24px;
}
.hsm-learn-article-card-body h3 {
    font-family: var(--learn-heading-font);
    font-size: 19px;
    font-weight: 700;
    margin: 0 0 10px;
    line-height: 1.35;
    color: var(--learn-text);
}
.hsm-learn-article-card-body p {
    font-family: var(--learn-body-font);
    font-size: 14px;
    line-height: 1.6;
    color: var(--learn-text-secondary);
    margin: 0 0 14px;
}
.hsm-learn-article-card-meta {
    font-family: var(--learn-body-font);
    font-size: 13px;
    color: var(--learn-text-muted);
    font-weight: 500;
}

/* ==========================================================================
   RESPONSIVE — Hub + Category Pages
   ========================================================================== */
@media (max-width: 900px) {
    .hsm-learn-hub-pillars { grid-template-columns: 1fr; gap: 20px; }
    .hsm-learn-hub-title { font-size: 36px; }
    .hsm-learn-hub-subtitle { font-size: 17px; }
    .hsm-learn-hub-connect h2 { font-size: 28px; }
    .hsm-learn-hub-cta h2 { font-size: 26px; }
    .hsm-learn-hub-faq h2 { font-size: 28px; }
    .hsm-learn-hub-connect { padding: 36px 0; margin-bottom: 60px; }
    .hsm-learn-hub-cta { padding: 40px 28px; margin-bottom: 60px; }
    .hsm-learn-hub-faq { margin-bottom: 60px; }
    .hsm-learn-category-hero h1 { font-size: 32px; }
}

@media (max-width: 600px) {
    .hsm-learn-hub-hero { padding: 48px 0 32px; }
    .hsm-learn-hub-title { font-size: 30px; }
    .hsm-learn-hub-subtitle { font-size: 16px; }
    .hsm-learn-hub-card { padding: 28px 24px; }
    .hsm-learn-hub-card-arrow { bottom: 24px; right: 24px; }
    .hsm-learn-hub-cta { padding: 36px 20px; }
    .hsm-learn-hub-cta h2 { font-size: 24px; }
    .hsm-learn-hub-cta-btn { padding: 14px 28px; font-size: 15px; }
    .hsm-learn-hub-faq h2 { font-size: 24px; }
    .hsm-learn-article-grid { grid-template-columns: 1fr; gap: 20px; }
    .hsm-learn-category-hero h1 { font-size: 28px; }
    .hsm-learn-category-hero { padding: 40px 0 28px; }
}