/**
 * 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   2.1.0
 */

/* ==========================================================================
   FULL-WIDTH OVERRIDE — Break out of theme's .site-main 1140px container
   ========================================================================== */
.site-main:has(.hsm-learn-hub),
.site-main:has(.hsm-learn-body) {
    max-width: 100% !important;
    width: 100% !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
}

/* ==========================================================================
   GLOBAL PINK OVERRIDE — Kill hello-biz parent theme's #c36 (hot pink)
   The parent theme sets a { color: #c36 }, button:hover/focus { background: #c36 }.
   These overrides ensure NO pink EVER appears inside Learn sections.
   ========================================================================== */
.hsm-learn-hub a,
.hsm-learn-body a,
.hsm-learn-hero a { color: var(--learn-link, #4A8FE7); }
.hsm-learn-hub a:hover,
.hsm-learn-body a:hover,
.hsm-learn-hero a:hover { color: var(--learn-link-hover, #3A7BD5); }
.hsm-learn-hub button:focus,
.hsm-learn-hub button:hover,
.hsm-learn-hub button:active,
.hsm-learn-body button:focus,
.hsm-learn-body button:hover,
.hsm-learn-body button:active {
    background-color: transparent !important;
    color: inherit !important;
    border-color: transparent !important;
}

/* ==========================================================================
   VARIABLES
   ========================================================================== */
:root {
    /* Layout */
    --learn-max-width: 1200px;
    --learn-body-max: 680px;
    --learn-toc-width: 280px;
    --learn-gap: 60px;

    /* Typography — matches homepage design-tokens.css */
    --learn-heading-font: 'Playfair Display', Georgia, serif;
    --learn-body-font: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Colors — aligned with homepage design-tokens.css */
    --learn-text: #2D3748;           /* --charcoal */
    --learn-text-secondary: #4A5568; /* --charcoal-mid */
    --learn-text-muted: #718096;
    --learn-accent: #4A8FE7;         /* --blue */
    --learn-accent-dark: #3A7BD5;    /* --blue-dark */
    --learn-accent-light: #EBF4FF;   /* --blue-subtle */
    --learn-border: #E2E8F0;         /* --border */
    --learn-bg: #fff;
    --learn-bg-subtle: #F7FAFC;      /* --gray-100 (was #F7F8FC) */
    --learn-link: #4A8FE7;
    --learn-link-hover: #3A7BD5;

    /* Callout palette — no purple, use blue spectrum */
    --learn-green: #38A169;
    --learn-green-dark: #276749;
    --learn-green-bg: #F0FFF4;
    --learn-blue: #4A8FE7;
    --learn-blue-dark: #2B6CB0;
    --learn-blue-bg: #EBF4FF;        /* was #EBF8FF — aligned with --blue-subtle */
    --learn-teal: #319795;
    --learn-teal-dark: #2C7A7B;
    --learn-teal-bg: #E6FFFA;
    --learn-amber: #DD6B20;
    --learn-amber-dark: #C05621;
    --learn-amber-bg: #FFFAF0;

    /* Surfaces — aligned with homepage shadow style */
    --learn-radius: 16px;
    --learn-radius-sm: 12px;
    --learn-shadow: 0 4px 20px rgba(74,143,231,0.10);
    --learn-shadow-hover: 0 8px 30px rgba(74,143,231,0.12);
    --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(to bottom, rgba(45,55,72,0.55) 0%, rgba(45,55,72,0.78) 100%);
    z-index: 1;
}

/* Reading Progress Bar */
.hsm-learn-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--learn-accent);
    z-index: 10000;
    transition: width 0.1s linear;
}

/* Social Share Sidebar */
.hsm-learn-share {
    position: fixed;
    left: max(calc(50% - 660px), 20px);
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 6px;
    z-index: 100;
    padding: 10px 6px;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 28px;
    border: 1px solid rgba(226,232,240,0.6);
    box-shadow: 0 4px 24px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
}
.hsm-learn-share a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: transparent;
    border: none;
    color: var(--learn-text-muted);
    text-decoration: none;
    font-size: 16px;
    transition: all 0.2s ease;
}
.hsm-learn-share a:hover {
    background: var(--learn-accent);
    color: #fff;
    transform: scale(1.15);
    text-decoration: none;
    box-shadow: 0 2px 12px rgba(74,143,231,0.35);
}

/* Mid-Article CTA — matches homepage charcoal CTA style */
.hsm-learn-inline-cta {
    margin: 40px 0;
    padding: 32px 36px;
    background: var(--learn-bg-subtle);
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    text-align: center;
}
.hsm-learn-inline-cta p {
    font-family: var(--learn-body-font);
    font-size: 16px;
    color: var(--learn-text);
    margin: 0 0 16px;
    line-height: 1.6;
}
.hsm-learn-inline-cta p strong {
    font-weight: 700;
    color: var(--learn-text);
}
.hsm-learn-inline-cta a {
    display: inline-block;
    background: var(--learn-text);
    color: #fff !important;
    font-family: var(--learn-body-font);
    font-weight: 600;
    font-size: 15px;
    padding: 12px 28px;
    border-radius: 100px;
    text-decoration: none;
    transition: transform var(--learn-transition), background var(--learn-transition);
}
.hsm-learn-inline-cta a:hover {
    transform: translateY(-2px);
    background: #1A202C;
    text-decoration: none;
    color: #fff !important;
}
.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;
    text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.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);
    text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

/* 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;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* 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;
    text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}
.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: #fff;
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius-sm);
    box-shadow: var(--learn-shadow);
}
.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;
}
figure.hsm-learn-img {
    margin: 36px 0;
    padding: 0;
}
figure.hsm-learn-img img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: var(--learn-radius-sm);
    margin: 0;
}
figure.hsm-learn-img figcaption {
    margin-top: 10px;
    font-size: 13px;
    line-height: 1.5;
    color: var(--learn-muted);
    text-align: center;
    font-style: italic;
}

/* ==========================================================================
   KEY TAKEAWAYS BOX
   ========================================================================== */
.hsm-learn-takeaways {
    position: relative;
    margin: 0 0 48px;
    padding: 0;
    background: #fff;
    border: 1px solid rgba(56,161,105,0.18);
    border-left: 4px solid var(--learn-green);
    border-radius: 4px var(--learn-radius-sm) var(--learn-radius-sm) 4px;
    overflow: hidden;
    box-shadow: 0 1px 12px rgba(56,161,105,0.06);
}
.hsm-learn-takeaways-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 28px 14px;
    background: linear-gradient(135deg, #F0FFF4 0%, #fff 100%);
    border-bottom: 1px solid rgba(56,161,105,0.1);
    margin-bottom: 0;
}
.hsm-learn-takeaways-icon {
    width: 26px;
    height: 26px;
    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: 16px 28px 20px;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}
.hsm-learn-takeaways li {
    position: relative;
    padding: 8px 12px 8px 36px;
    font-family: var(--learn-body-font);
    font-size: 14.5px;
    line-height: 1.55;
    color: var(--learn-text);
    border-radius: 6px;
    transition: background 0.15s ease;
}
.hsm-learn-takeaways li:hover {
    background: #F0FFF4;
}
.hsm-learn-takeaways li::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 13px;
    width: 16px;
    height: 16px;
    background: var(--learn-green);
    border-radius: 50%;
}
.hsm-learn-takeaways li::after {
    content: '\2713';
    position: absolute;
    left: 12px;
    top: 13px;
    color: #fff;
    font-weight: 700;
    font-size: 10px;
    line-height: 16px;
}

/* ==========================================================================
   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 — teal (aligned with homepage palette, no purple) */
.hsm-learn-callout--note {
    background: var(--learn-teal-bg);
    border-left-color: var(--learn-teal);
}
.hsm-learn-callout--note .hsm-learn-callout-label {
    color: var(--learn-teal-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;
    background: var(--learn-bg-subtle);
}
.hsm-learn-faq-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 22px 28px;
    background: #fff;
    border-bottom: 2px solid var(--learn-accent);
}
.hsm-learn-faq-header-title {
    font-family: var(--learn-heading-font);
    font-size: 20px;
    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);
}
/* NUCLEAR OVERRIDE: Kill parent theme's #c36 pink on buttons and links.
   hello-biz/theme.css sets button:focus/hover { background: #c36 } and a { color: #c36 }.
   This bleeds into our FAQ buttons and any link inside Learn sections. */
.hsm-learn-faq-q:focus,
.hsm-learn-faq-q:active {
    background: var(--learn-bg-subtle) !important;
    color: var(--learn-accent) !important;
    outline: none;
}
.hsm-learn-faq-item.open .hsm-learn-faq-q,
.hsm-learn-faq-item.open .hsm-learn-faq-q:focus,
.hsm-learn-faq-item.open .hsm-learn-faq-q:hover,
.hsm-learn-faq-item.open .hsm-learn-faq-q:active {
    background: var(--learn-bg-subtle) !important;
    color: var(--learn-accent) !important;
    outline: none;
}
.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; }

/* ==========================================================================
   COMPARISON TABLES
   ========================================================================== */
.hsm-learn-table {
    width: 100%;
    border-collapse: collapse;
    margin: 28px 0;
    font-family: var(--learn-body-font);
    font-size: 14.5px;
    line-height: 1.55;
    border-radius: var(--learn-radius-sm);
    overflow: hidden;
    border: 1px solid var(--learn-border);
}
.hsm-learn-table thead {
    background: var(--learn-accent);
    color: #fff;
}
.hsm-learn-table th {
    padding: 12px 16px;
    font-weight: 700;
    text-align: left;
    font-size: 13.5px;
    letter-spacing: 0.02em;
}
.hsm-learn-table td {
    padding: 11px 16px;
    border-bottom: 1px solid var(--learn-border);
    color: var(--learn-text);
}
.hsm-learn-table tbody tr:last-child td {
    border-bottom: none;
}
.hsm-learn-table tbody tr:nth-child(even) {
    background: var(--learn-bg-subtle);
}
.hsm-learn-table tbody tr:hover {
    background: var(--learn-accent-light);
}
.hsm-learn-table td strong {
    color: var(--learn-text);
    font-weight: 600;
}
@media (max-width: 600px) {
    .hsm-learn-table {
        font-size: 13px;
    }
    .hsm-learn-table th,
    .hsm-learn-table td {
        padding: 9px 10px;
    }
}

/* ==========================================================================
   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;
    box-shadow: var(--learn-shadow);
    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) — Solid charcoal, matching homepage
   ========================================================================== */
.hsm-learn-cta {
    max-width: var(--learn-max-width);
    margin: 56px auto 56px;
    padding: 44px 48px;
    background: #2D3748;
    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: #2D3748 !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: #2D3748 !important;
}

/* ==========================================================================
   RESPONSIVE — Article Pages
   ========================================================================== */
/* Fix card underline specificity override from theme */
.page-content a.hsm-learn-article-card,
.page-content a.hsm-learn-hub-card,
.page-content a.hsm-learn-related-card {
    text-decoration: none !important;
}

@media (max-width: 1440px) {
    .hsm-learn-share {
        left: 12px;
    }
}
@media (max-width: 1280px) {
    .hsm-learn-share { display: none; }
}
@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 ul { padding: 14px 18px 18px; }
    .hsm-learn-takeaways-header { padding: 14px 18px 12px; }
    .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: 13.5px; padding-left: 32px; }
    .hsm-learn-takeaways li::before { left: 6px; top: 12px; width: 14px; height: 14px; }
    .hsm-learn-takeaways li::after { left: 9.5px; top: 12px; font-size: 9px; line-height: 14px; }
    .hsm-learn-cta-title { font-size: 22px; }
    .hsm-learn-cta-btn { padding: 14px 28px; font-size: 15px; }
}


/* ==========================================================================
   LEARN HUB PAGE — /learn/
   New editorial hub with lhub- prefix. Fully dynamic from PHP.
   ========================================================================== */
.hsm-learn-hub {
    font-family: var(--learn-body-font);
    color: var(--learn-text);
}

/* ── Hero ── */
.lhub-hero {
    background: var(--learn-text);
    color: #fff;
    text-align: center;
    padding: 80px 24px 72px;
}
.lhub-hero-inner {
    max-width: 720px;
    margin: 0 auto;
}
.lhub-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--learn-accent);
    background: rgba(74,143,231,0.12);
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 20px;
}
.lhub-hero h1 {
    font-family: var(--learn-heading-font);
    font-size: 52px;
    font-weight: 700;
    line-height: 1.1;
    margin: 0 0 20px;
    color: #fff;
}
.lhub-hero h1 em {
    font-style: italic;
    color: var(--learn-accent);
}
.lhub-hero-sub {
    font-size: 18px;
    line-height: 1.7;
    color: rgba(255,255,255,0.78);
    margin: 0 0 36px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.lhub-hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
}
.lhub-stat { text-align: center; }
.lhub-stat-num {
    display: block;
    font-family: var(--learn-heading-font);
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
}
.lhub-stat-label {
    font-size: 12px;
    font-weight: 500;
    color: rgba(255,255,255,0.55);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.lhub-stat-sep {
    width: 1px;
    height: 36px;
    background: rgba(255,255,255,0.15);
}

/* ── Section shared ── */
.lhub-section-inner {
    max-width: var(--learn-max-width);
    margin: 0 auto;
    padding: 0 24px;
}
.lhub-section-label {
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--learn-accent);
    margin: 0 0 10px;
    text-align: center;
}
.lhub-section-inner > h2 {
    font-family: var(--learn-heading-font);
    font-size: 36px;
    font-weight: 700;
    line-height: 1.2;
    margin: 0 0 14px;
    color: var(--learn-text);
    text-align: center;
}
.lhub-section-inner > h2 em {
    font-style: italic;
}
.lhub-section-sub {
    font-size: 17px;
    line-height: 1.65;
    color: var(--learn-text-secondary);
    max-width: 640px;
    margin: 0 auto 40px;
    text-align: center;
}

/* ── Pillar cards ── */
.lhub-pillars { padding: 80px 0; }
.lhub-pillar-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.lhub-pillar-card {
    display: flex;
    flex-direction: column;
    text-decoration: none !important;
    color: var(--learn-text);
    background: #fff;
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    overflow: hidden;
    box-shadow: var(--learn-shadow);
    transition: transform var(--learn-transition), box-shadow var(--learn-transition);
}
.lhub-pillar-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--learn-shadow-hover);
    text-decoration: none !important;
    color: var(--learn-text);
}
.lhub-pillar-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}
.lhub-pillar-img--placeholder {
    background: linear-gradient(135deg, var(--learn-bg-subtle), var(--learn-border));
}
.lhub-pillar-body {
    padding: 24px 28px 28px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.lhub-pillar-icon {
    width: 36px;
    height: 36px;
    color: var(--learn-accent);
    margin-bottom: 14px;
}
.lhub-pillar-icon svg { width: 100%; height: 100%; }
.lhub-pillar-body h3 {
    font-family: var(--learn-heading-font);
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 10px;
    line-height: 1.3;
    color: var(--learn-text);
}
.lhub-pillar-body p {
    font-size: 14.5px;
    line-height: 1.6;
    color: var(--learn-text-secondary);
    margin: 0 0 18px;
    flex-grow: 1;
}
.lhub-pillar-count {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--learn-accent);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ── Start Here ── */
.lhub-start {
    padding: 80px 0;
    background: var(--learn-bg-subtle);
}
.lhub-start-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.lhub-start-card {
    display: flex;
    flex-direction: column;
    text-decoration: none !important;
    color: var(--learn-text);
    background: #fff;
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    overflow: hidden;
    box-shadow: var(--learn-shadow);
    transition: transform var(--learn-transition), box-shadow var(--learn-transition);
}
.lhub-start-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--learn-shadow-hover);
    text-decoration: none !important;
    color: var(--learn-text);
}
.lhub-start-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}
.lhub-start-body {
    padding: 22px 24px 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.lhub-start-cat {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--learn-accent);
    margin-bottom: 8px;
}
.lhub-start-body h3 {
    font-family: var(--learn-heading-font);
    font-size: 19px;
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 10px;
    color: var(--learn-text);
}
.lhub-start-body p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--learn-text-secondary);
    margin: 0 0 14px;
    flex-grow: 1;
}
.lhub-start-meta {
    font-size: 13px;
    color: var(--learn-text-muted);
    font-weight: 500;
}

/* ── Latest articles ── */
.lhub-latest { padding: 80px 0; }
.lhub-latest-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.lhub-latest-card {
    display: flex;
    flex-direction: column;
    text-decoration: none !important;
    color: var(--learn-text);
    background: #fff;
    border: 1px solid var(--learn-border);
    border-radius: var(--learn-radius);
    overflow: hidden;
    box-shadow: var(--learn-shadow);
    transition: transform var(--learn-transition), box-shadow var(--learn-transition);
}
.lhub-latest-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--learn-shadow-hover);
    text-decoration: none !important;
    color: var(--learn-text);
}
.lhub-latest-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}
.lhub-latest-body {
    padding: 22px 24px 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}
.lhub-latest-cat {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--learn-accent);
    margin-bottom: 8px;
}
.lhub-latest-body h3 {
    font-family: var(--learn-heading-font);
    font-size: 18px;
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 auto;
    color: var(--learn-text);
    padding-bottom: 14px;
}
.lhub-latest-footer {
    display: flex;
    align-items: center;
    gap: 0;
    font-size: 13px;
    color: var(--learn-text-muted);
    border-top: 1px solid var(--learn-border);
    padding-top: 14px;
}
.lhub-dot {
    margin: 0 6px;
    color: var(--learn-border);
}

/* ── CTA ── */
.lhub-cta {
    padding: 0 0 80px;
}
.lhub-cta .lhub-section-inner {
    background: var(--learn-text);
    border-radius: var(--learn-radius);
    text-align: center;
    padding: 56px 40px;
    color: #fff;
}
.lhub-cta h2 {
    font-family: var(--learn-heading-font);
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 14px;
    text-align: center;
}
.lhub-cta h2 em { font-style: italic; }
.lhub-cta p {
    font-size: 17px;
    color: rgba(255,255,255,0.85);
    max-width: 520px;
    margin: 0 auto 28px;
    line-height: 1.65;
    text-align: center;
}
.lhub-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: var(--learn-text) !important;
    padding: 14px 32px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: transform var(--learn-transition), box-shadow var(--learn-transition);
}
.lhub-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0,0,0,0.25);
    text-decoration: none;
    color: var(--learn-text) !important;
}

/* ── FAQ ── */
.lhub-faq {
    padding: 0 0 80px;
}
.lhub-faq .lhub-section-inner {
    max-width: 720px;
}
.lhub-faq h2 {
    font-family: var(--learn-heading-font);
    font-size: 32px;
    font-weight: 700;
    margin: 0 0 28px;
    text-align: center;
    color: var(--learn-text);
}
.lhub-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);
}
.lhub-faq-item:hover { box-shadow: var(--learn-shadow); }
.lhub-faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 18px 24px;
    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;
}
.lhub-faq-q:hover { color: var(--learn-accent); }
.lhub-faq-q:focus { outline: none; background: var(--learn-bg-subtle) !important; color: var(--learn-accent) !important; }
.lhub-faq-toggle {
    font-size: 22px;
    font-weight: 300;
    color: var(--learn-accent);
    flex-shrink: 0;
    margin-left: 16px;
    transition: transform var(--learn-transition);
}
.lhub-faq-item.open .lhub-faq-toggle { transform: rotate(45deg); }
.lhub-faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}
.lhub-faq-item.open .lhub-faq-a { max-height: 400px; }
.lhub-faq-a-inner {
    padding: 0 24px 22px;
    font-size: 15px;
    line-height: 1.75;
    color: var(--learn-text-secondary);
}
.lhub-faq-a-inner a { color: var(--learn-accent); }
.lhub-faq-a-inner p { margin: 0; }

/* ==========================================================================
   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: 48px 0 40px;
    border-bottom: 1px solid var(--learn-border);
    margin-bottom: 40px;
}
.hsm-learn-category-hero h1 {
    font-family: var(--learn-heading-font);
    font-size: 42px;
    font-weight: 700;
    margin: 0 0 16px;
    color: var(--learn-text);
    line-height: 1.15;
}
.hsm-learn-category-hero p,
.hsm-learn-category-desc {
    font-family: var(--learn-body-font);
    font-size: 17px;
    line-height: 1.7;
    color: var(--learn-text-secondary);
    max-width: 640px;
    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);
}

/* Featured Article (hero card) */
.hsm-learn-article-featured,
.page-content a.hsm-learn-article-featured,
.site-main a.hsm-learn-article-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    text-decoration: none !important;
    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);
    margin-bottom: 40px;
}
.hsm-learn-article-featured:hover {
    transform: translateY(-4px);
    box-shadow: var(--learn-shadow-hover);
    text-decoration: none !important;
    color: var(--learn-text);
}
.hsm-learn-article-featured .hsm-learn-article-card-img {
    width: 100%;
    height: 100%;
    min-height: 320px;
    object-fit: cover;
    display: block;
}
.hsm-learn-article-featured .hsm-learn-article-card-body {
    padding: 40px 36px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.hsm-learn-article-featured .hsm-learn-article-card-body h3 {
    font-family: var(--learn-heading-font);
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 16px;
    line-height: 1.25;
    color: var(--learn-text);
}
.hsm-learn-article-featured .hsm-learn-article-card-body p {
    font-family: var(--learn-body-font);
    font-size: 16px;
    line-height: 1.65;
    color: var(--learn-text-secondary);
    margin: 0 0 20px;
}

/* Article Grid */
.hsm-learn-article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
    margin: 0 0 80px;
}
.hsm-learn-article-card,
.page-content a.hsm-learn-article-card,
.site-main a.hsm-learn-article-card {
    display: block;
    text-decoration: none !important;
    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,
.page-content a.hsm-learn-article-card:hover,
.site-main a.hsm-learn-article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--learn-shadow-hover);
    text-decoration: none !important;
    color: var(--learn-text);
}
.hsm-learn-article-card-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}
.hsm-learn-article-card-img--placeholder {
    background: linear-gradient(135deg, var(--learn-bg-subtle) 0%, var(--learn-border) 100%);
}
.hsm-learn-article-card-body {
    padding: 22px 24px 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: 1.3;
    color: var(--learn-text);
}
.hsm-learn-article-card-body p {
    font-family: var(--learn-body-font);
    font-size: 14.5px;
    line-height: 1.6;
    color: var(--learn-text-secondary);
    margin: 0 0 16px;
}
.hsm-learn-article-card-footer {
    display: flex;
    align-items: center;
    gap: 0;
    font-family: var(--learn-body-font);
    font-size: 13px;
    color: var(--learn-text-muted);
}
.hsm-learn-article-card-author {
    font-weight: 600;
    color: var(--learn-text-secondary);
}
.hsm-learn-article-card-dot {
    margin: 0 6px;
    color: var(--learn-border);
}
.hsm-learn-article-card-meta {
    font-weight: 400;
}

/* ==========================================================================
   RESPONSIVE — Hub + Category Pages
   ========================================================================== */
@media (max-width: 900px) {
    /* Hub */
    .lhub-hero h1 { font-size: 38px; }
    .lhub-pillar-grid, .lhub-start-grid, .lhub-latest-grid { grid-template-columns: 1fr; gap: 20px; }
    .lhub-pillars, .lhub-start, .lhub-latest { padding: 48px 0; }
    .lhub-section-inner > h2 { font-size: 28px; }
    .lhub-cta h2 { font-size: 26px; }
    .lhub-cta .lhub-section-inner { padding: 40px 24px; }
    .lhub-hero-stats { gap: 20px; }
    .lhub-stat-num { font-size: 26px; }
    /* Category pages */
    .hsm-learn-category-hero h1 { font-size: 32px; }
    .hsm-learn-article-featured { grid-template-columns: 1fr; }
    .hsm-learn-article-featured .hsm-learn-article-card-img { min-height: 260px; }
    .hsm-learn-article-featured .hsm-learn-article-card-body { padding: 28px; }
    .hsm-learn-article-featured .hsm-learn-article-card-body h3 { font-size: 24px; }
}

@media (max-width: 600px) {
    /* Hub */
    .lhub-hero { padding: 48px 16px 40px; }
    .lhub-hero h1 { font-size: 32px; }
    .lhub-hero-sub { font-size: 16px; }
    .lhub-hero-stats { flex-wrap: wrap; gap: 16px; }
    .lhub-stat-sep { display: none; }
    .lhub-faq h2 { font-size: 26px; }
    /* Category pages */
    .hsm-learn-article-featured { grid-template-columns: 1fr; }
    .hsm-learn-article-featured .hsm-learn-article-card-img { min-height: 220px; }
    .hsm-learn-article-featured .hsm-learn-article-card-body { padding: 24px; }
    .hsm-learn-article-featured .hsm-learn-article-card-body h3 { font-size: 22px; }
    .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; }
}