/* ==========================================================================
   Academy — Premium Ghost Education Theme
   A warm, inviting theme for independent educators, course creators,
   and online academies.
   ========================================================================== */


/* ==========================================================================
   1. CSS Reset
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 100%;
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: 5rem;
}

body {
    min-height: 100vh;
    line-height: 1.7;
    font-family: var(--font-body);
    font-weight: 400;
    color: var(--text);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

img {
    height: auto;
}

input,
button,
textarea,
select {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    background: none;
    border: none;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
}

p {
    overflow-wrap: break-word;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

fieldset {
    border: none;
}


/* ==========================================================================
   2. Design Tokens
   ========================================================================== */

:root {
    /* Colors */
    --bg: #FFFBF5;
    --bg-elevated: #FFFFFF;
    --bg-dark: #1C1917;
    --text: #292524;
    --text-secondary: #78716C;
    --text-tertiary: #A8A29E;
    --accent: var(--ghost-accent-color, #D97706);
    --accent-hover: #B45309;
    --accent-subtle: #FFFBEB;
    --accent-secondary: #7C3AED;
    --success: #16A34A;
    --success-bg: #F0FDF4;
    --progress: #3B82F6;
    --progress-bg: #EFF6FF;
    --border: #E7E5E4;
    --border-light: #F5F5F4;

    /* Typography */
    --font-heading: var(--gh-font-heading, 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif);
    --font-body: var(--gh-font-body, 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif);
    --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;

    /* Spacing */
    --gap-xs: 0.5rem;
    --gap-sm: 1rem;
    --gap-md: 1.5rem;
    --gap: 2rem;
    --gap-lg: 3rem;
    --gap-xl: 4rem;
    --gap-2xl: 6rem;

    /* Layout */
    --header-height: 4rem;
    --sidebar-width: 300px;
    --toc-width: 240px;
    --container-max: 1200px;
    --container-wide: 1400px;
    --container-narrow: 720px;

    /* Misc */
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.1);
    --transition: 0.2s ease;
}


/* ==========================================================================
   3. Layout
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--gap);
    padding-right: var(--gap);
}

.container-wide {
    width: 100%;
    max-width: var(--container-wide);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--gap);
    padding-right: var(--gap);
}

.container-narrow {
    width: 100%;
    max-width: var(--container-narrow);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--gap);
    padding-right: var(--gap);
}

.site-main {
    min-height: 60vh;
}


/* ==========================================================================
   4. Skip to Content
   ========================================================================== */

.skip-to-content {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 9999;
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: top var(--transition);
}

.skip-to-content:focus {
    top: 1rem;
}


/* ==========================================================================
   5. Site Header
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.site-header.is-scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: var(--gap);
}

.site-header-left {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
}

.site-header-logo img {
    height: 2rem;
    width: auto;
}

.site-header-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--text-xl);
    color: var(--text);
}

.site-header-nav {
    display: none;
}

.site-header-right {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
}

.search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: background var(--transition), color var(--transition);
}

.search-toggle:hover {
    background: var(--border-light);
    color: var(--text);
}

.header-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    font-size: var(--text-sm);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: background var(--transition), color var(--transition);
}

.header-btn-signin {
    color: var(--text);
}

.header-btn-signin:hover {
    background: var(--border-light);
}

.header-btn-signup {
    background: var(--accent);
    color: #fff;
    display: none;
}

.header-btn-signup:hover {
    background: var(--accent-hover);
}

.header-btn-account {
    color: var(--accent);
    font-weight: 600;
}

.header-btn-account:hover {
    background: var(--accent-subtle);
}

/* Navigation */
.nav-list {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-item a {
    display: block;
    padding: 0.5rem 0.75rem;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}

.nav-item a:hover {
    color: var(--text);
    background: var(--border-light);
}

.nav-current a {
    color: var(--accent);
    font-weight: 600;
}

/* Hamburger */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 2.5rem;
    height: 2.5rem;
    gap: 5px;
    border-radius: var(--radius-sm);
}

.hamburger-line {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 1px;
    transition: transform var(--transition), opacity var(--transition);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    padding: var(--gap);
    z-index: 99;
    overflow-y: auto;
}

.mobile-menu.is-open {
    display: block;
}

.mobile-menu .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
}

.mobile-menu .nav-item a {
    font-size: var(--text-lg);
    padding: 0.75rem 0;
}

.mobile-menu-actions {
    margin-top: var(--gap);
    display: flex;
    flex-direction: column;
    gap: var(--gap-sm);
}

.mobile-menu-actions .header-btn {
    justify-content: center;
    padding: 0.75rem;
}

.mobile-menu-actions .header-btn-signup {
    display: flex;
}

body.menu-open {
    overflow: hidden;
}


/* ==========================================================================
   6. Hero — Academy
   ========================================================================== */

.hero-academy {
    background: linear-gradient(135deg, var(--accent-subtle) 0%, var(--bg) 50%, #F5F3FF 100%);
    padding: var(--gap-2xl) 0;
    border-bottom: 1px solid var(--border);
}

.hero-academy-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap-lg);
    align-items: center;
}

.hero-academy-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--text);
    line-height: 1.15;
    margin-bottom: var(--gap-sm);
}

.hero-academy-description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 540px;
    margin-bottom: var(--gap);
}

.hero-academy-actions {
    display: flex;
    gap: var(--gap-sm);
    flex-wrap: wrap;
}

.hero-academy-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background var(--transition), transform var(--transition);
}

.hero-academy-btn:hover {
    transform: translateY(-1px);
}

.hero-academy-btn-primary {
    background: var(--accent);
    color: #fff;
}

.hero-academy-btn-primary:hover {
    background: var(--accent-hover);
}

.hero-academy-btn-secondary {
    background: var(--bg-elevated);
    color: var(--text);
    border: 1px solid var(--border);
}

.hero-academy-btn-secondary:hover {
    border-color: var(--text-secondary);
}

/* Featured course in hero */
.hero-academy-featured {
    background: var(--bg-elevated);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.hero-academy-featured-label {
    display: block;
    padding: 0.75rem 1.25rem 0;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
}

.hero-academy-featured-card {
    display: flex;
    gap: var(--gap);
    padding: 0.75rem 1.25rem 1.25rem;
}

.hero-academy-featured-image {
    width: 120px;
    height: 90px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}

.hero-academy-featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-academy-featured-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.hero-academy-featured-author {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}


/* ==========================================================================
   7. Section Headers
   ========================================================================== */

.section-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: var(--gap);
    gap: var(--gap-sm);
}

.section-title {
    font-size: var(--text-2xl);
    font-weight: 700;
}

.section-link {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--accent);
    white-space: nowrap;
}

.section-link:hover {
    color: var(--accent-hover);
}

.section-featured,
.section-courses,
.section-latest {
    padding: var(--gap-xl) 0;
}


/* ==========================================================================
   8. Featured Course Card (Homepage)
   ========================================================================== */

.featured-course-card {
    background: var(--bg-elevated);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
}

.featured-course-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.featured-course-link {
    display: grid;
    grid-template-columns: 1fr;
}

.featured-course-image {
    aspect-ratio: 16/9;
    overflow: hidden;
}

.featured-course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-course-info {
    padding: var(--gap-md);
    display: flex;
    flex-direction: column;
    gap: var(--gap-xs);
}

.featured-course-title {
    font-size: var(--text-xl);
    font-weight: 700;
}

.featured-course-excerpt {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: 1.6;
}

.featured-course-author {
    display: flex;
    align-items: center;
    gap: var(--gap-xs);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.featured-course-author-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

.featured-course-cta {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--accent);
    margin-top: var(--gap-xs);
}


/* ==========================================================================
   9. Course Cards (Catalog Grid)
   ========================================================================== */

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--gap);
}

.course-card {
    background: var(--bg-elevated);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
}

.course-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-3px);
}

.course-card-link {
    display: block;
}

.course-card-image {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--border-light);
}

.course-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.course-card:hover .course-card-image img {
    transform: scale(1.03);
}

.course-card-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
}

.course-card-content {
    padding: var(--gap-md);
}

.course-card-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: 0.25rem;
    line-height: 1.4;
}

.course-card-description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--gap-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-card-meta {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

.course-card-lessons {
    font-weight: 500;
}


/* ==========================================================================
   10. Lesson List Items (Homepage / Author)
   ========================================================================== */

.lessons-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.lesson-list-item {
    background: var(--bg-elevated);
}

.lesson-list-link {
    display: flex;
    gap: var(--gap);
    padding: var(--gap-md);
    transition: background var(--transition);
}

.lesson-list-link:hover {
    background: var(--accent-subtle);
}

.lesson-list-image {
    width: 80px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
}

.lesson-list-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.lesson-list-content {
    flex: 1;
    min-width: 0;
}

.lesson-list-course {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.125rem;
}

.lesson-list-title {
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 0.25rem;
}

.lesson-list-meta {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

.lesson-list-date {
    color: var(--text-tertiary);
}


/* ==========================================================================
   11. Lesson Layout (Post — Two Column)
   ========================================================================== */

.lesson-layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: calc(100vh - var(--header-height));
}

.lesson-content {
    max-width: 100%;
    padding: var(--gap-lg) var(--gap);
    overflow-x: hidden;
}

/* Breadcrumbs */
.lesson-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--gap);
    flex-wrap: wrap;
}

.lesson-breadcrumbs a:hover {
    color: var(--accent);
}

.breadcrumb-sep {
    color: var(--text-tertiary);
}

/* Lesson Header */
.lesson-content-header {
    margin-bottom: var(--gap);
}

.lesson-content-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--gap-sm);
}

.lesson-content-meta {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.lesson-content-author {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-weight: 500;
}

.lesson-content-author-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

/* Feature Image */
.lesson-content-image {
    margin-bottom: var(--gap);
    border-radius: var(--radius);
    overflow: hidden;
}

.lesson-content-image img {
    width: 100%;
}

.lesson-content-image figcaption {
    padding: var(--gap-xs) 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-align: center;
}

/* Mark as Complete */
.lesson-complete-wrap {
    margin-bottom: var(--gap);
}

.lesson-complete-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: var(--accent);
    color: #fff;
    font-size: var(--text-sm);
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background var(--transition), transform var(--transition);
}

.lesson-complete-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.lesson-complete-btn.is-completed {
    background: var(--success);
}

.lesson-complete-btn.is-completed:hover {
    background: #15803d;
}

.lesson-complete-icon {
    width: 20px;
    height: 20px;
}

/* Content Gate */
.lesson-content-gate,
.course-overview-gate {
    padding: var(--gap-xl) 0;
}

.content-gate {
    text-align: center;
    padding: var(--gap-xl) var(--gap);
    background: var(--accent-subtle);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.content-gate h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--gap-xs);
}

.content-gate p {
    color: var(--text-secondary);
    margin-bottom: var(--gap);
}

.content-gate-button {
    display: inline-flex;
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.content-gate-button:hover {
    background: var(--accent-hover);
}

/* Comments */
.lesson-comments {
    margin-top: var(--gap-xl);
    padding-top: var(--gap-lg);
    border-top: 1px solid var(--border);
}


/* ==========================================================================
   12. Course Sidebar (Left — Lesson Pages)
   ========================================================================== */

.course-sidebar {
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
    overflow-y: auto;
    background: var(--bg-elevated);
    border-right: 1px solid var(--border);
    padding: var(--gap) var(--gap-sm);
}

.course-sidebar-close {
    display: none;
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 2rem;
    height: 2rem;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
}

.course-sidebar-close:hover {
    background: var(--border-light);
    color: var(--text);
}

.course-sidebar-header {
    margin-bottom: var(--gap-sm);
}

.course-sidebar-title {
    font-size: var(--text-base);
    font-weight: 700;
}

.course-sidebar-title a {
    color: var(--text);
    transition: color var(--transition);
}

.course-sidebar-title a:hover {
    color: var(--accent);
}

.course-sidebar-progress {
    margin-bottom: var(--gap);
}

/* Lesson list in sidebar */
.course-sidebar-lessons {
    display: flex;
    flex-direction: column;
    gap: 2px;
    counter-reset: lesson;
}

.course-sidebar-toggle {
    display: none;
    position: fixed;
    bottom: var(--gap);
    left: var(--gap);
    z-index: 50;
    width: 3rem;
    height: 3rem;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: background var(--transition);
}

.course-sidebar-toggle:hover {
    background: var(--accent-hover);
}


/* ==========================================================================
   13. Lesson Card (Sidebar / Syllabus List Item)
   ========================================================================== */

.lesson-card {
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.lesson-card-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    color: var(--text);
    transition: background var(--transition);
}

.lesson-card-link:hover {
    background: var(--border-light);
}

.lesson-card.is-active .lesson-card-link {
    background: var(--accent-subtle);
    color: var(--accent);
    font-weight: 600;
}

.lesson-card-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--text-tertiary);
    background: var(--border-light);
    border-radius: 50%;
    flex-shrink: 0;
}

.lesson-card-check {
    display: none;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    background: var(--success);
    color: #fff;
    border-radius: 50%;
    flex-shrink: 0;
}

.lesson-card-check svg {
    width: 14px;
    height: 14px;
}

.lesson-card.is-completed .lesson-card-number {
    display: none;
}

.lesson-card.is-completed .lesson-card-check {
    display: flex;
}

.lesson-card-info {
    flex: 1;
    min-width: 0;
}

.lesson-card-title {
    display: block;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.lesson-card-reading-time {
    display: block;
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}


/* ==========================================================================
   14. Lesson Navigation (Prev / Next)
   ========================================================================== */

.lesson-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap);
    margin-top: var(--gap-lg);
    padding-top: var(--gap-lg);
    border-top: 1px solid var(--border);
}

.lesson-nav-link {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: var(--gap-sm);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.lesson-nav-link:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
}

.lesson-nav-next {
    text-align: right;
    grid-column: 2;
}

.lesson-nav-direction {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--accent);
}

.lesson-nav-next .lesson-nav-direction {
    justify-content: flex-end;
}

.lesson-nav-title {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text);
}


/* ==========================================================================
   15. Progress Bar
   ========================================================================== */

.progress-bar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.375rem;
}

.progress-bar-label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--text-secondary);
}

.progress-bar-percent {
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--progress);
    font-family: var(--font-mono);
}

.progress-bar-track {
    width: 100%;
    height: 6px;
    background: var(--border-light);
    border-radius: 3px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--progress);
    border-radius: 3px;
    transition: width 0.4s ease;
}

.progress-bar-detail {
    display: block;
    margin-top: 0.25rem;
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}


/* ==========================================================================
   16. Sidebar TOC (Right — Lesson Pages)
   ========================================================================== */

.sidebar-toc {
    display: none;
}

.sidebar-toc-title {
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: var(--gap-sm);
}

.toc-list {
    display: flex;
    flex-direction: column;
}

.toc-item {
    border-left: 2px solid var(--border-light);
}

.toc-link {
    display: block;
    padding: 0.25rem 0.75rem;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    transition: color var(--transition), border-color var(--transition);
}

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

.toc-link.is-active {
    color: var(--accent);
    font-weight: 500;
}

.toc-item.toc-item-h2 {
    border-left-color: transparent;
}

.toc-item.toc-item-h2:has(.toc-link.is-active) {
    border-left-color: var(--accent);
}

.toc-link[data-level="3"] {
    padding-left: 1.5rem;
    font-size: var(--text-xs);
}


/* ==========================================================================
   17. Instructor Card
   ========================================================================== */

.instructor-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--gap-sm);
}

.instructor-card-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.instructor-card-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
}

.instructor-card-name {
    font-size: var(--text-lg);
    font-weight: 700;
}

.instructor-card-bio {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

.instructor-card-social {
    display: flex;
    gap: var(--gap-sm);
    font-size: var(--text-sm);
}

.instructor-card-social a {
    color: var(--accent);
    font-weight: 500;
}

.instructor-card-social a:hover {
    color: var(--accent-hover);
}


/* ==========================================================================
   18. Member Badge
   ========================================================================== */

.member-badge {
    display: inline-block;
    padding: 0.125rem 0.625rem;
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.member-badge-free {
    background: var(--success-bg);
    color: var(--success);
}

.member-badge-members {
    background: var(--progress-bg);
    color: var(--progress);
}

.member-badge-premium {
    background: #F5F3FF;
    color: var(--accent-secondary);
}


/* ==========================================================================
   19. Course Page (tag.hbs)
   ========================================================================== */

.course-page {
    padding: var(--gap-lg) 0;
}

.course-header {
    margin-bottom: var(--gap-lg);
}

.course-header-image {
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: var(--gap);
    max-height: 400px;
}

.course-header-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-header-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--gap-xs);
}

.course-header-description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    max-width: 720px;
    margin-bottom: var(--gap-sm);
}

.course-header-count {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.course-page-progress {
    margin-bottom: var(--gap-lg);
    max-width: 480px;
}

.course-lessons-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--gap);
}

.course-lessons-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap-xs);
}


/* ==========================================================================
   20. Course Overview (custom-course.hbs)
   ========================================================================== */

.course-overview {
    padding: var(--gap-lg) 0;
}

.course-overview-header {
    margin-bottom: var(--gap-lg);
}

.course-overview-image {
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: var(--gap);
    max-height: 400px;
}

.course-overview-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-overview-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--gap-xs);
}

.course-overview-excerpt {
    font-size: var(--text-lg);
    color: var(--text-secondary);
}

.course-overview-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap-lg);
}

.course-overview-body {
    margin-bottom: var(--gap-lg);
}

/* Syllabus */
.course-syllabus {
    margin-top: var(--gap-lg);
}

.course-syllabus-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--gap);
}

.course-syllabus-progress {
    margin-bottom: var(--gap);
    max-width: 480px;
}

.course-syllabus-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap-xs);
}

/* Enroll Card */
.course-enroll-card {
    margin-top: var(--gap);
}

.course-enroll-btn {
    display: block;
    width: 100%;
    padding: 0.875rem;
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    font-size: var(--text-base);
    text-align: center;
    border-radius: var(--radius-sm);
    transition: background var(--transition), transform var(--transition);
}

.course-enroll-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}


/* ==========================================================================
   21. Courses Catalog (custom-courses.hbs)
   ========================================================================== */

.courses-catalog {
    padding: var(--gap-xl) 0;
}

.courses-catalog-header {
    margin-bottom: var(--gap-lg);
    text-align: center;
}

.courses-catalog-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--gap-xs);
}

.courses-catalog-description {
    font-size: var(--text-lg);
    color: var(--text-secondary);
}

.courses-grid-catalog {
    gap: var(--gap);
}

.courses-catalog-empty {
    text-align: center;
    color: var(--text-secondary);
    padding: var(--gap-xl) 0;
}


/* ==========================================================================
   22. Author Page
   ========================================================================== */

.author-header {
    padding: var(--gap-xl) 0 var(--gap-lg);
}

.author-header-content {
    display: flex;
    align-items: center;
    gap: var(--gap);
}

.author-header-avatar {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.author-header-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    margin-bottom: 0.125rem;
}

.author-header-name {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.author-header-bio {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--gap-xs);
}

.author-header-social {
    display: flex;
    gap: var(--gap-sm);
    font-size: var(--text-sm);
}

.author-header-social a {
    color: var(--accent);
    font-weight: 500;
}

.author-header-social a:hover {
    color: var(--accent-hover);
}


/* ==========================================================================
   23. Account / Student Dashboard
   ========================================================================== */

.account-page {
    padding: var(--gap-xl) 0;
}

.account-header {
    margin-bottom: var(--gap-lg);
}

.account-title {
    font-size: var(--text-2xl);
    font-weight: 700;
}

.account-profile-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--gap);
    margin-bottom: var(--gap-lg);
    flex-wrap: wrap;
}

.account-profile {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
}

.account-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.account-name {
    font-weight: 600;
}

.account-email {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.account-actions {
    display: flex;
    gap: var(--gap-sm);
}

.account-btn {
    padding: 0.5rem 1rem;
    font-size: var(--text-sm);
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    transition: background var(--transition), border-color var(--transition);
}

.account-btn:hover {
    background: var(--border-light);
}

.account-btn-portal {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.account-btn-portal:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.account-subscription {
    margin-bottom: var(--gap-lg);
}

.account-section-title {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: var(--gap-sm);
}

.account-tier {
    display: flex;
    justify-content: space-between;
    padding: var(--gap-sm);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.account-tier-name {
    font-weight: 600;
}

.account-tier-price {
    color: var(--text-secondary);
}

/* Dashboard Stats */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
    margin-bottom: var(--gap-lg);
}

.dashboard-stat {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap-md);
    text-align: center;
}

.dashboard-stat-value {
    display: block;
    font-size: var(--text-3xl);
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--accent);
    margin-bottom: 0.25rem;
}

.dashboard-stat-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* Dashboard Course Cards */
.dashboard-courses-list {
    display: flex;
    flex-direction: column;
    gap: var(--gap-sm);
}

.dashboard-course-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap-md);
}

.dashboard-course-title {
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--gap-xs);
    text-transform: capitalize;
}

.dashboard-course-title a {
    color: var(--text);
    transition: color var(--transition);
}

.dashboard-course-title a:hover {
    color: var(--accent);
}

.dashboard-course-meta {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--gap-sm);
}

.dashboard-course-complete {
    color: var(--success);
    font-weight: 600;
}

.dashboard-empty {
    text-align: center;
    color: var(--text-secondary);
    padding: var(--gap-lg) 0;
}

.dashboard-empty a {
    color: var(--accent);
    font-weight: 600;
}

/* Guest Account */
.account-guest {
    text-align: center;
    padding: var(--gap-2xl) var(--gap);
}

.account-guest p {
    color: var(--text-secondary);
    margin-bottom: var(--gap);
}


/* ==========================================================================
   24. Auth Pages (Sign In / Sign Up)
   ========================================================================== */

.auth-page {
    padding: var(--gap-2xl) 0;
    display: flex;
    justify-content: center;
}

.auth-card {
    width: 100%;
}

.auth-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--gap-xs);
}

.auth-description {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--gap);
}

.auth-form {
    margin-bottom: var(--gap);
}

.auth-form-group {
    margin-bottom: var(--gap-sm);
}

.auth-form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.auth-form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    font-size: var(--text-base);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.auth-form-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.15);
}

.auth-form-button {
    display: block;
    width: 100%;
    padding: 0.75rem;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: var(--text-base);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition);
    text-align: center;
}

.auth-form-button:hover {
    background: var(--accent-hover);
}

.auth-form-message {
    margin-top: var(--gap-sm);
    text-align: center;
}

.auth-form-success {
    color: var(--success);
    display: none;
}

.auth-form-error {
    color: #EF4444;
    display: none;
}

.auth-footer {
    text-align: center;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.auth-footer a {
    color: var(--accent);
    font-weight: 600;
}

/* Tier Cards */
.auth-tiers {
    display: grid;
    gap: var(--gap);
    margin-top: var(--gap-lg);
}

.auth-tier-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap-md);
    text-align: center;
}

.auth-tier-name {
    font-size: var(--text-lg);
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.auth-tier-description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-bottom: var(--gap-sm);
}

.auth-tier-price {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--accent);
    margin-bottom: var(--gap-sm);
}

.auth-tier-benefits {
    text-align: left;
    font-size: var(--text-sm);
}

.auth-tier-benefits li {
    padding: 0.25rem 0;
    padding-left: 1.25rem;
    position: relative;
}

.auth-tier-benefits li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.625rem;
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
}


/* ==========================================================================
   25. Certificate Page
   ========================================================================== */

.certificate-page {
    padding: var(--gap-2xl) 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.certificate-frame {
    background: var(--bg-elevated);
    border: 3px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: 4px;
    max-width: 640px;
    width: 100%;
    box-shadow: var(--shadow-lg);
}

.certificate-inner {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap-xl) var(--gap-lg);
    text-align: center;
}

.certificate-icon {
    margin: 0 auto var(--gap);
    color: var(--accent);
}

.certificate-title {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: var(--gap-lg);
}

.certificate-congratulations {
    font-size: var(--text-2xl);
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--accent);
    margin-bottom: var(--gap-sm);
}

.certificate-recipient {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.certificate-name {
    display: block;
    font-size: var(--text-2xl);
    font-family: var(--font-heading);
    color: var(--text);
    margin: var(--gap-xs) 0;
}

.certificate-achievement {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--gap-sm);
}

.certificate-course-name {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--gap-lg);
}

.certificate-date {
    margin-bottom: var(--gap-lg);
}

.certificate-date-label {
    display: block;
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.certificate-date-value {
    font-size: var(--text-base);
    font-weight: 600;
}

.certificate-footer {
    padding-top: var(--gap);
    border-top: 1px solid var(--border);
}

.certificate-logo {
    height: 2rem;
    margin: 0 auto;
}

.certificate-org {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--text-lg);
}

.certificate-incomplete {
    text-align: center;
    padding: var(--gap-xl) 0;
    color: var(--text-secondary);
}

.certificate-btn {
    display: inline-block;
    margin-top: var(--gap-sm);
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.certificate-btn:hover {
    background: var(--accent-hover);
}


/* ==========================================================================
   26. Page Template
   ========================================================================== */

.page-full {
    padding: var(--gap-xl) 0;
}

.page-full-header {
    text-align: center;
    margin-bottom: var(--gap-lg);
}

.page-full-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--gap-xs);
}

.page-full-excerpt {
    font-size: var(--text-lg);
    color: var(--text-secondary);
}

.page-full-image {
    margin-bottom: var(--gap-lg);
    border-radius: var(--radius);
    overflow: hidden;
}

.page-full-image img {
    width: 100%;
}

.page-full-image figcaption {
    padding: var(--gap-xs) 0;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-align: center;
}


/* ==========================================================================
   27. Error Page
   ========================================================================== */

.error-page {
    text-align: center;
    padding: var(--gap-2xl) var(--gap);
}

.error-code {
    font-size: 8rem;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--accent);
    line-height: 1;
    margin-bottom: var(--gap-sm);
}

.error-message {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: var(--gap-xs);
}

.error-description {
    color: var(--text-secondary);
    margin-bottom: var(--gap);
}

.error-link {
    display: inline-flex;
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.error-link:hover {
    background: var(--accent-hover);
}


/* ==========================================================================
   28. Newsletter CTA
   ========================================================================== */

.newsletter-cta {
    background: var(--bg-dark);
    color: #fff;
    padding: var(--gap-xl) 0;
}

.newsletter-cta-inner {
    text-align: center;
}

.newsletter-cta-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--gap-xs);
}

.newsletter-cta-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--gap);
}

.subscribe-form-group {
    display: flex;
    gap: var(--gap-xs);
    max-width: 440px;
    margin: 0 auto;
}

.subscribe-form-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    font-size: var(--text-base);
}

.subscribe-form-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.subscribe-form-input:focus {
    outline: none;
    border-color: var(--accent);
}

.subscribe-form-button {
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition);
    white-space: nowrap;
}

.subscribe-form-button:hover {
    background: var(--accent-hover);
}

.subscribe-form-message {
    margin-top: var(--gap-sm);
}

.subscribe-form-success {
    color: var(--success);
    display: none;
}

.subscribe-form-error {
    color: #EF4444;
    display: none;
}


/* ==========================================================================
   29. Membership CTA
   ========================================================================== */

.membership-cta {
    padding: var(--gap-xl) 0;
}

.membership-cta-inner {
    text-align: center;
    padding: var(--gap-xl);
    background: linear-gradient(135deg, var(--accent-subtle), #F5F3FF);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.membership-cta-title {
    font-size: var(--text-xl);
    font-weight: 700;
    margin-bottom: var(--gap-xs);
}

.membership-cta-description {
    color: var(--text-secondary);
    margin-bottom: var(--gap);
}

.membership-cta-btn {
    display: inline-flex;
    padding: 0.75rem 1.5rem;
    background: var(--accent-secondary);
    color: #fff;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.membership-cta-btn:hover {
    background: #6D28D9;
}


/* ==========================================================================
   30. Share Buttons
   ========================================================================== */

.share-buttons {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    margin-top: var(--gap-lg);
    padding-top: var(--gap);
    border-top: 1px solid var(--border);
}

.share-label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.375rem;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    transition: color var(--transition), border-color var(--transition), background var(--transition);
}

.share-btn:hover {
    color: var(--text);
    border-color: var(--text-secondary);
}

.share-btn-copy {
    width: auto;
    padding: 0 0.75rem;
}

.share-btn-label {
    font-size: var(--text-xs);
    font-weight: 500;
}

.share-btn svg {
    flex-shrink: 0;
}


/* ==========================================================================
   31. Pagination
   ========================================================================== */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--gap);
    padding: var(--gap-lg) 0;
}

.pagination-prev,
.pagination-next {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--accent);
    transition: color var(--transition);
}

.pagination-prev:hover,
.pagination-next:hover {
    color: var(--accent-hover);
}

.pagination-disabled {
    visibility: hidden;
}

.pagination-status {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.pagination-wrap {
    padding: var(--gap) 0;
}


/* ==========================================================================
   32. Footer
   ========================================================================== */

.site-footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--gap-xl) 0 var(--gap);
}

.site-footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gap-lg);
    margin-bottom: var(--gap-lg);
}

.site-footer-logo {
    height: 1.75rem;
    margin-bottom: var(--gap-sm);
}

.site-footer-name {
    display: block;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--text-lg);
    color: #fff;
    margin-bottom: var(--gap-sm);
}

.site-footer-description {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    max-width: 300px;
}

.site-footer-heading {
    font-size: var(--text-sm);
    font-weight: 600;
    color: #fff;
    margin-bottom: var(--gap-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.site-footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.site-footer-links a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition);
}

.site-footer-links a:hover {
    color: #fff;
}

.site-footer-social-links {
    display: flex;
    gap: var(--gap-sm);
}

.site-footer-social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: color var(--transition), border-color var(--transition);
}

.site-footer-social-links a:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.4);
}

.site-footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--gap);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    gap: var(--gap-sm);
    flex-wrap: wrap;
}

.site-footer-copyright {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.5);
}

.site-footer-powered {
    font-size: var(--text-sm);
}

.site-footer-powered a {
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition);
}

.site-footer-powered a:hover {
    color: #fff;
}


/* ==========================================================================
   33. Ghost Content (gh-content) — Full Styling
   ========================================================================== */

.gh-content {
    font-size: var(--text-lg);
    line-height: 1.8;
    word-break: break-word;
}

.gh-content > * + * {
    margin-top: 1.5em;
}

.gh-content h2 {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-top: 2.5em;
    margin-bottom: 0.5em;
}

.gh-content h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-top: 2em;
    margin-bottom: 0.5em;
}

.gh-content h4 {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

.gh-content a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.gh-content a:hover {
    color: var(--accent-hover);
}

.gh-content strong {
    font-weight: 600;
}

.gh-content em {
    font-style: italic;
}

.gh-content ul,
.gh-content ol {
    padding-left: 1.5em;
}

.gh-content ul {
    list-style-type: disc;
}

.gh-content ol {
    list-style-type: decimal;
}

.gh-content li {
    margin-bottom: 0.5em;
}

.gh-content li::marker {
    color: var(--accent);
}

.gh-content blockquote {
    border-left: 3px solid var(--accent);
    padding: 0.75em 1.25em;
    margin-left: 0;
    background: var(--accent-subtle);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    color: var(--text-secondary);
}

.gh-content blockquote p {
    margin: 0;
}

.gh-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2em 0;
}

/* Code */
.gh-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--border-light);
    padding: 0.125em 0.375em;
    border-radius: 4px;
    color: var(--text);
}

.gh-content pre {
    background: var(--bg-dark);
    color: #E7E5E4;
    padding: 1.25em 1.5em;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    font-size: var(--text-sm);
    line-height: 1.7;
    position: relative;
}

.gh-content pre code {
    background: none;
    padding: 0;
    color: inherit;
    font-size: inherit;
}

/* Tables */
.gh-content table {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.gh-content th {
    background: var(--border-light);
    font-weight: 600;
    text-align: left;
    padding: 0.75rem 1rem;
    font-size: var(--text-sm);
}

.gh-content td {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border);
    font-size: var(--text-sm);
}

.gh-content tr:nth-child(even) td {
    background: var(--border-light);
}

/* Images */
.gh-content img {
    border-radius: var(--radius-sm);
}

.gh-content figure {
    margin-top: 2em;
    margin-bottom: 2em;
}

.gh-content figcaption {
    margin-top: 0.5em;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-align: center;
}

/* Full-width images */
.gh-content .kg-width-wide {
    margin-left: calc(-1 * var(--gap));
    margin-right: calc(-1 * var(--gap));
}

.gh-content .kg-width-full {
    margin-left: calc(-50vw + 50%);
    margin-right: calc(-50vw + 50%);
    max-width: none;
    width: 100vw;
}

.gh-content .kg-width-full img {
    border-radius: 0;
}

/* Ghost Cards */
.gh-content .kg-card {
    margin-top: 2em;
    margin-bottom: 2em;
}

.gh-content .kg-image-card img,
.gh-content .kg-gallery-image img {
    width: 100%;
}

.gh-content .kg-gallery-card {
    margin-top: 2em;
    margin-bottom: 2em;
}

.gh-content .kg-gallery-container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.gh-content .kg-gallery-row {
    display: flex;
    gap: 0.5rem;
}

.gh-content .kg-gallery-row img {
    flex: 1;
    height: auto;
}

/* Callout Card */
.gh-content .kg-callout-card {
    display: flex;
    gap: 0.75rem;
    padding: 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.gh-content .kg-callout-card-grey {
    background: var(--border-light);
}

.gh-content .kg-callout-card-white {
    background: var(--bg-elevated);
}

.gh-content .kg-callout-card-blue {
    background: #EFF6FF;
    border-color: #BFDBFE;
}

.gh-content .kg-callout-card-green {
    background: var(--success-bg);
    border-color: #BBF7D0;
}

.gh-content .kg-callout-card-yellow {
    background: #FFFBEB;
    border-color: #FDE68A;
}

.gh-content .kg-callout-card-red {
    background: #FEF2F2;
    border-color: #FECACA;
}

.gh-content .kg-callout-card-pink {
    background: #FDF2F8;
    border-color: #FBCFE8;
}

.gh-content .kg-callout-card-purple {
    background: #F5F3FF;
    border-color: #DDD6FE;
}

.gh-content .kg-callout-card-accent {
    background: var(--accent-subtle);
    border-color: var(--accent);
}

.gh-content .kg-callout-emoji {
    font-size: 1.25em;
    line-height: 1.4;
}

.gh-content .kg-callout-text {
    font-size: var(--text-base);
    line-height: 1.6;
}

/* Bookmark Card */
.gh-content .kg-bookmark-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.gh-content .kg-bookmark-container {
    display: flex;
    text-decoration: none;
    color: var(--text);
}

.gh-content .kg-bookmark-content {
    flex: 1;
    padding: 1.25rem;
}

.gh-content .kg-bookmark-title {
    font-size: var(--text-base);
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: 0.25rem;
}

.gh-content .kg-bookmark-description {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.gh-content .kg-bookmark-metadata {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

.gh-content .kg-bookmark-icon {
    width: 16px;
    height: 16px;
}

.gh-content .kg-bookmark-author,
.gh-content .kg-bookmark-publisher {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gh-content .kg-bookmark-thumbnail {
    width: 200px;
    flex-shrink: 0;
}

.gh-content .kg-bookmark-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
}

/* Button Card */
.gh-content .kg-button-card {
    display: flex;
    justify-content: center;
}

.gh-content .kg-button-card a {
    display: inline-flex;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: opacity var(--transition);
}

.gh-content .kg-button-card a:hover {
    opacity: 0.9;
}

.gh-content .kg-align-left {
    justify-content: flex-start;
}

.gh-content .kg-align-center {
    justify-content: center;
}

/* Toggle Card */
.gh-content .kg-toggle-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
}

.gh-content .kg-toggle-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.gh-content .kg-toggle-heading h4 {
    font-size: var(--text-base);
    font-weight: 600;
    margin: 0;
}

.gh-content .kg-toggle-card-icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
    color: var(--text-secondary);
}

.gh-content .kg-toggle-content {
    margin-top: 1rem;
    font-size: var(--text-base);
}

.kg-toggle-card[data-kg-toggle-state="close"] .kg-toggle-content {
    display: none;
}

.kg-toggle-card[data-kg-toggle-state="open"] .kg-toggle-card-icon svg {
    transform: rotate(45deg);
}

.kg-toggle-card-icon svg {
    transition: transform 0.2s ease;
}

/* Video Card */
.gh-content .kg-video-card,
.gh-content .kg-audio-card {
    border-radius: var(--radius-sm);
    overflow: hidden;
}

/* File Card */
.gh-content .kg-file-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
}

.gh-content .kg-file-card-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.gh-content .kg-file-card-contents {
    flex: 1;
}

.gh-content .kg-file-card-title {
    font-size: var(--text-base);
    font-weight: 600;
}

.gh-content .kg-file-card-caption {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.gh-content .kg-file-card-metadata {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

/* Header Card */
.gh-content .kg-header-card {
    padding: var(--gap-2xl) var(--gap);
    text-align: center;
    border-radius: var(--radius);
}

.gh-content .kg-header-card h2 {
    font-size: var(--text-4xl);
    margin: 0 0 0.5em;
}

.gh-content .kg-header-card p {
    font-size: var(--text-xl);
    margin: 0;
    opacity: 0.8;
}

/* Product Card */
.gh-content .kg-product-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
}

.gh-content .kg-product-card-title {
    font-size: var(--text-xl);
    font-weight: 700;
}

.gh-content .kg-product-card-description {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Signup Card */
.gh-content .kg-signup-card {
    padding: var(--gap-xl);
    border-radius: var(--radius);
    text-align: center;
}

.gh-content .kg-signup-card h2 {
    margin-top: 0;
}

/* Heading anchors */
.gh-content .has-anchor {
    position: relative;
}

.heading-anchor {
    display: none;
    position: absolute;
    left: -1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    transition: color var(--transition);
}

.heading-anchor:hover {
    color: var(--accent);
}

.has-anchor:hover .heading-anchor {
    display: flex;
}


/* ==========================================================================
   34. Focus & Accessibility
   ========================================================================== */

*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}


/* ==========================================================================
   35. Responsive — Tablets (768px)
   ========================================================================== */

@media (min-width: 768px) {
    .site-header-nav {
        display: block;
    }

    .mobile-menu-toggle {
        display: none;
    }

    .header-btn-signup {
        display: inline-flex;
    }

    .hero-academy-inner {
        grid-template-columns: 1fr 1fr;
    }

    .hero-academy-title {
        font-size: var(--text-5xl);
    }

    .featured-course-link {
        grid-template-columns: 280px 1fr;
    }

    .featured-course-image {
        aspect-ratio: auto;
    }

    .site-footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
    }

    .auth-tiers {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }

    .dashboard-stats {
        grid-template-columns: repeat(3, 1fr);
    }
}


/* ==========================================================================
   36. Responsive — Desktop (1024px)
   ========================================================================== */

@media (min-width: 1024px) {
    .lesson-layout {
        grid-template-columns: var(--sidebar-width) 1fr var(--toc-width);
    }

    .lesson-content {
        padding: var(--gap-lg) var(--gap-lg);
    }

    .sidebar-toc {
        display: block;
        position: sticky;
        top: var(--header-height);
        height: calc(100vh - var(--header-height));
        overflow-y: auto;
        padding: var(--gap) var(--gap-sm);
        border-left: 1px solid var(--border);
    }

    .course-overview-grid {
        grid-template-columns: 1fr 320px;
    }
}


/* ==========================================================================
   37. Responsive — Large Desktop (1280px)
   ========================================================================== */

@media (min-width: 1280px) {
    .hero-academy-title {
        font-size: 3.5rem;
    }
}


/* ==========================================================================
   38. Responsive — Mobile (max-width: 1023px)
   ========================================================================== */

@media (max-width: 1023px) {
    .course-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 320px;
        z-index: 200;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        padding-top: var(--gap);
    }

    .course-sidebar.is-open {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }

    .course-sidebar-close {
        display: flex;
    }

    .course-sidebar-toggle {
        display: flex;
    }

    .lesson-layout {
        grid-template-columns: 1fr;
    }

    body.sidebar-open {
        overflow: hidden;
    }

    body.sidebar-open::after {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 199;
    }
}

@media (max-width: 767px) {
    :root {
        --gap: 1.25rem;
        --gap-lg: 2rem;
        --gap-xl: 3rem;
        --gap-2xl: 4rem;
    }

    .hero-academy {
        padding: var(--gap-xl) 0;
    }

    .hero-academy-title {
        font-size: var(--text-3xl);
    }

    .hero-academy-featured-card {
        flex-direction: column;
    }

    .hero-academy-featured-image {
        width: 100%;
        height: 160px;
    }

    .lesson-nav {
        grid-template-columns: 1fr;
    }

    .lesson-nav-next {
        grid-column: 1;
        text-align: left;
    }

    .lesson-nav-next .lesson-nav-direction {
        justify-content: flex-start;
    }

    .lesson-content-title {
        font-size: var(--text-2xl);
    }

    .author-header-content {
        flex-direction: column;
        text-align: center;
    }

    .account-profile-card {
        flex-direction: column;
        text-align: center;
    }

    .account-actions {
        flex-direction: column;
        width: 100%;
    }

    .account-btn {
        text-align: center;
    }

    .dashboard-stats {
        grid-template-columns: 1fr;
    }

    .subscribe-form-group {
        flex-direction: column;
    }

    .courses-grid {
        grid-template-columns: 1fr;
    }

    .gh-content .kg-bookmark-container {
        flex-direction: column;
    }

    .gh-content .kg-bookmark-thumbnail {
        width: 100%;
        height: 200px;
    }

    .error-code {
        font-size: 5rem;
    }

    .certificate-inner {
        padding: var(--gap-lg) var(--gap);
    }
}

@media (max-width: 639px) {
    .site-header-inner {
        padding-left: var(--gap-sm);
        padding-right: var(--gap-sm);
    }

    .site-header-nav {
        display: none;
    }

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

    .header-btn-signup {
        display: none;
    }

    .share-label {
        display: none;
    }
}


/* ==========================================================================
   39. Print Styles
   ========================================================================== */

@media print {
    .site-header,
    .site-footer,
    .course-sidebar,
    .course-sidebar-toggle,
    .sidebar-toc,
    .lesson-nav,
    .share-buttons,
    .lesson-complete-wrap,
    .newsletter-cta,
    .membership-cta,
    .pagination,
    .mobile-menu,
    .skip-to-content {
        display: none !important;
    }

    body {
        background: #fff;
        color: #000;
        font-size: 12pt;
    }

    .lesson-layout {
        display: block;
    }

    .lesson-content {
        padding: 0;
        max-width: 100%;
    }

    .gh-content a {
        color: #000;
        text-decoration: underline;
    }

    .gh-content a::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: #666;
    }

    .gh-content pre {
        background: #f5f5f5;
        border: 1px solid #ddd;
        color: #000;
    }

    .gh-content img {
        max-width: 100%;
    }
}


/* ==========================================================================
   40. No-JS Fallbacks
   ========================================================================== */

.no-js .course-sidebar-toggle {
    display: none;
}

.no-js .lesson-complete-btn {
    display: none;
}

.no-js .progress-bar {
    display: none;
}

.no-js .lesson-card-check {
    display: none;
}

.no-js .lesson-card-number {
    display: flex;
}


/* ==========================================================================
   41. Components Page — Showcase
   ========================================================================== */

/* Layout */
.showcase-section {
    padding: var(--gap-2xl) 0;
}

.showcase-section .section-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--gap-xs);
    color: var(--text);
}

.showcase-section h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-top: var(--gap-xl);
    margin-bottom: var(--gap);
    color: var(--text);
}

.showcase-description {
    color: var(--text-secondary);
    margin-bottom: var(--gap-lg);
    font-size: var(--text-lg);
}

.showcase-block {
    padding: var(--gap);
    background: var(--bg-elevated);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
}

/* Color Token Swatches */
.showcase-colors {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--gap-sm);
}

.showcase-color {
    aspect-ratio: 2/1;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: flex-end;
    padding: var(--gap-xs);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
}

.showcase-color span {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    background: rgba(255, 255, 255, 0.85);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--text);
}

/* Surface Elevation */
.showcase-surfaces {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap-sm);
}

.showcase-surface {
    padding: var(--gap);
    border-radius: var(--radius-sm);
    text-align: center;
}

.showcase-surface span {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-secondary);
}

/* Typography Specimens */
.type-specimen {
    display: flex;
    flex-direction: column;
}

.type-specimen-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--gap);
    align-items: baseline;
    padding: var(--gap-md) 0;
    border-bottom: 1px solid var(--border-light);
}

.type-specimen-item:last-child {
    border-bottom: none;
}

.type-specimen-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.type-specimen-label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.type-specimen-meta code {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    background: none;
    padding: 0;
}

.type-specimen-sample {
    flex: 1;
    min-width: 0;
}

/* Code Block — Editor Style */
.code-block-header {
    display: flex;
    align-items: center;
    gap: var(--gap-xs);
    padding: var(--gap-xs) var(--gap);
    background: var(--bg-dark);
    border-bottom: 1px solid var(--border);
}

.code-block-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.code-block-dot-red { background: #f87171; }
.code-block-dot-yellow { background: #fbbf24; }
.code-block-dot-green { background: #34d399; }

.code-block-filename {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    margin-left: var(--gap-xs);
}

pre.code-highlighted {
    background: #1C1917;
    margin: 0;
    padding: var(--gap);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: 1.7;
    border: none;
    border-radius: 0;
    color: #e7e5e4;
}

pre.code-highlighted code {
    background: none;
    padding: 0;
    font-size: inherit;
    color: inherit;
}

/* Syntax Tokens */
.code-keyword { color: #c084fc; }
.code-function { color: #67e8f9; }
.code-string { color: #34d399; }
.code-comment { color: #52525b; font-style: italic; }
.code-operator { color: #818cf8; }
.code-param { color: #fb923c; }
.code-punctuation { color: #71717a; }

/* Buttons */
.showcase-buttons {
    display: flex;
    gap: var(--gap-sm);
    flex-wrap: wrap;
    align-items: center;
}

.showcase-centered {
    display: flex;
    justify-content: center;
    background: none;
    border: none;
    padding: 0;
}

/* Auth Card */
.showcase-auth-card {
    max-width: 480px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap-lg);
}

/* Light-mode newsletter form (for components page) */
.subscribe-form-light .subscribe-form-input {
    background: var(--bg-elevated);
    border-color: var(--border);
    color: var(--text);
}

.subscribe-form-light .subscribe-form-input::placeholder {
    color: var(--text-tertiary);
}

.showcase-nav-demo {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--gap);
}

.pricing-card {
    padding: var(--gap);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
}

.pricing-card.is-featured {
    border-color: var(--accent);
}

.pricing-card-name {
    font-size: var(--text-2xl);
    margin-bottom: var(--gap-xs);
}

.pricing-card-description {
    color: var(--text-secondary);
    margin-bottom: var(--gap-sm);
}

.pricing-card-price {
    margin: var(--gap-sm) 0;
}

.pricing-amount {
    font-size: var(--text-4xl);
    font-weight: 800;
}

.pricing-interval {
    color: var(--text-tertiary);
}

.pricing-card-benefits {
    list-style: none;
    padding: 0;
    margin: var(--gap-sm) 0;
    flex: 1;
}

.pricing-card-benefits li {
    padding: var(--gap-xs) 0;
    color: var(--text-secondary);
}

.pricing-card-benefits li::before {
    content: "\2713  ";
    color: var(--success);
}

.pricing-card-button {
    display: block;
    text-align: center;
    padding: var(--gap-xs) var(--gap);
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-weight: 600;
    margin-top: var(--gap-sm);
}

/* Content Gate */
.post-content-gate {
    position: relative;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.post-content-gate-fade {
    height: 60px;
    background: linear-gradient(to bottom, transparent, var(--bg-elevated));
}

.post-content-gate-inner {
    padding: var(--gap-lg);
    text-align: center;
}

.post-content-gate-lock {
    color: var(--accent);
    margin-bottom: var(--gap-sm);
}

.post-content-gate-title {
    font-size: var(--text-xl);
    margin-bottom: var(--gap-xs);
}

.post-content-gate-description {
    color: var(--text-secondary);
    margin-bottom: var(--gap);
}

.post-content-gate-button {
    display: inline-block;
    padding: var(--gap-xs) var(--gap-lg);
    background: var(--accent);
    color: #fff;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: background var(--transition);
}

.post-content-gate-button:hover {
    background: var(--accent-hover);
}

.post-content-gate-note {
    margin-top: var(--gap-sm);
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

.post-content-gate-note a {
    color: var(--accent);
    text-decoration: underline;
}

/* Carousel */
.showcase-carousel {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    display: flex;
    gap: var(--gap-sm);
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--gap-xs);
}

.showcase-carousel-slide {
    flex: 0 0 80%;
    scroll-snap-align: start;
}

.showcase-carousel-slide img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.showcase-carousel-slide figcaption {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-top: var(--gap-xs);
}

/* Responsive */
@media (max-width: 768px) {
    .type-specimen-item {
        grid-template-columns: 1fr;
        gap: var(--gap-xs);
    }

    .showcase-surfaces {
        grid-template-columns: repeat(2, 1fr);
    }

    .showcase-colors {
        grid-template-columns: repeat(3, 1fr);
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Blog Article (post-blog.hbs)
   Simple article layout — no course sidebar,
   no mark-as-complete, no lesson navigation
   ============================================ */

.blog-article {
    padding-top: var(--gap-lg);
    padding-bottom: var(--gap-xl);
}

.blog-article-header {
    margin-bottom: var(--gap-lg);
}

.blog-article-tag {
    display: inline-block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--gap-sm);
}

.blog-article-tag:hover {
    text-decoration: underline;
}

.blog-article-title {
    font-family: var(--font-heading);
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text);
    margin-bottom: var(--gap-md);
}

.blog-article-meta {
    display: flex;
    align-items: center;
    gap: var(--gap-md);
    flex-wrap: wrap;
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.blog-article-author {
    display: flex;
    align-items: center;
    gap: var(--gap-xs);
    font-weight: 500;
    color: var(--text);
}

.blog-article-author-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
}

.blog-article-image {
    margin-bottom: var(--gap-lg);
    border-radius: var(--radius);
    overflow: hidden;
}

.blog-article-image img {
    width: 100%;
    height: auto;
    display: block;
}

.blog-article-image figcaption {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    text-align: center;
    margin-top: var(--gap-xs);
}

.blog-article-body {
    font-size: var(--text-lg);
    line-height: 1.75;
}

.blog-article-related {
    margin-top: var(--gap-xl);
    padding-top: var(--gap-lg);
    border-top: 1px solid var(--border);
}

.blog-article-related-title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--gap-md);
}

.blog-article-comments {
    margin-top: var(--gap-xl);
    padding-top: var(--gap-lg);
    border-top: 1px solid var(--border);
}

@media (max-width: 640px) {
    .blog-article-title {
        font-size: var(--text-2xl);
    }
}

/* ============================================
   Post Cards (post-feed grid)
   ============================================ */

.post-feed {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap-md);
}

.post-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
}

.post-card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.post-card-image-link {
    display: block;
    overflow: hidden;
}

.post-card-image {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.post-card:hover .post-card-image {
    transform: scale(1.03);
}

.post-card-content {
    padding: var(--gap-md);
}

.post-card-title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--gap-xs);
}

.post-card-title a {
    color: var(--text);
    text-decoration: none;
}

.post-card-title a:hover {
    color: var(--accent);
}

.post-card-excerpt {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: var(--gap-sm);
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

.post-card-author {
    font-weight: 500;
}

@media (max-width: 1023px) {
    .post-feed {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 639px) {
    .post-feed {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Components Page Navigation
   ============================================ */

.components-nav {
    position: sticky;
    top: var(--header-height);
    z-index: 10;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding-top: var(--gap-sm);
    padding-bottom: var(--gap-sm);
    margin-bottom: var(--gap-lg);
}

.components-nav-list {
    display: flex;
    gap: var(--gap-md);
    list-style: none;
    padding: 0;
    margin: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.components-nav-list li a {
    display: block;
    white-space: nowrap;
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--gap-xs) 0;
    border-bottom: 2px solid transparent;
    transition: color var(--transition), border-color var(--transition);
}

.components-nav-list li a:hover {
    color: var(--text);
    border-bottom-color: var(--accent);
}

/* Components TOC demo — responsive */

.showcase-toc-demo {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: var(--gap-lg);
}

@media (max-width: 767px) {
    .showcase-toc-demo {
        grid-template-columns: 1fr;
    }

    .components-nav-list {
        gap: var(--gap-sm);
    }
}

/* ==========================================================================
   Carousel Controls (Fix 8)
   ========================================================================== */

.showcase-carousel-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--gap-sm);
}

.carousel-btn {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 50%;
    cursor: pointer;
    color: var(--text);
    transition: background var(--transition), border-color var(--transition);
}

.carousel-btn:hover {
    background: var(--accent-subtle);
    border-color: var(--accent);
    color: var(--accent);
}

@media (max-width: 640px) {
    .carousel-btn {
        width: 32px;
        height: 32px;
    }

    .carousel-btn svg {
        width: 16px;
        height: 16px;
    }
}

/* ==========================================================================
   Pricing Toggle (Fix 10)
   ========================================================================== */

.pricing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--gap-sm);
    margin-bottom: var(--gap-lg);
}

.pricing-toggle-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-secondary);
}

.pricing-toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
}

.pricing-toggle-input {
    opacity: 0;
    width: 0;
    height: 0;
}

.pricing-toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border);
    border-radius: 26px;
    transition: background-color var(--transition);
}

.pricing-toggle-slider::before {
    content: "";
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background-color: var(--bg-elevated);
    border-radius: 50%;
    transition: transform var(--transition);
    box-shadow: var(--shadow-sm);
}

.pricing-toggle-input:checked + .pricing-toggle-slider {
    background-color: var(--accent);
}

.pricing-toggle-input:checked + .pricing-toggle-slider::before {
    transform: translateX(22px);
}

/* ==========================================================================
   Showcase Badges — Interactive / Static (Fix 13)
   ========================================================================== */

.showcase-badge-interactive,
.showcase-badge-static {
    position: relative;
}

.showcase-badge-interactive::after,
.showcase-badge-static::after {
    content: attr(data-badge);
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    line-height: 1.4;
    pointer-events: none;
    z-index: 1;
}

.showcase-badge-interactive::after {
    background: var(--success-bg);
    color: var(--success);
}

.showcase-badge-static::after {
    background: var(--progress-bg);
    color: var(--progress);
}

/* ==========================================================================
   Responsive Embed Height (Fix 14)
   ========================================================================== */

@media (max-width: 640px) {
    .gh-content iframe,
    .showcase-section iframe {
        max-height: 250px;
    }
}

/* ==========================================================================
   Table Overflow on Mobile (Fix 15)
   ========================================================================== */

.gh-content table,
.showcase-section table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ==========================================================================
   Back to Top Button (Fix 17)
   ========================================================================== */

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition);
    z-index: 100;
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--accent-hover);
}