@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ========================================
   University — Webflow University Design System
   Light theme default, dark via data-theme="dark"
   ======================================== */

/* --- Design Tokens: Light (default) --- */
.university-page {
    /* Backgrounds */
    --uni-bg: whitesmoke;
    --uni-bg-secondary: #e8e8e8;
    --uni-bg-tertiary: #dedede;
    --uni-bg-card: #ffffff;
    --uni-bg-course-placeholder: #FB9F2D;

    /* Text */
    --uni-text-primary: #080808;
    --uni-text-secondary: #5a5a5a;
    --uni-text-tertiary: #ababab;
    --uni-text-muted: #757575;
    --uni-text-on-accent: #ffffff;
    --uni-sidebar-text: #171717;

    /* Accent */
    --uni-accent: #146ef5;
    --uni-accent-hover: #1059c7;

    /* Brand */
    --uni-brand-orange: #FB9F2D;
    --uni-brand-orange-hover: #E08A1A;

    /* Borders */
    --uni-border: #d0d0d0;
    --uni-border-hover: #080808;

    /* Shadows */
    --uni-shadow-btn: rgba(8, 8, 8, 0.08) 0px 4px 4px 0px, rgba(8, 8, 8, 0.2) 0px 1px 2px 0px;
    --uni-shadow-btn-inset: rgba(255, 255, 255, 0.06) 0px 6px 12px 0px inset, rgba(255, 255, 255, 0.2) 0px 1px 1px 0px inset;
    --uni-shadow-btn-active: rgba(8, 8, 8, 0.15) 0px 1px 2px 0px;
    --uni-shadow-card: rgba(8, 8, 8, 0.04) 0px 2px 4px 0px;
    --uni-shadow-card-hover: rgba(8, 8, 8, 0.08) 0px 6px 16px 0px;

    /* Status */
    --uni-success: #00d722;
    --uni-error: #ee1d36;
    --uni-warning: #ffad12;

    /* Constants (theme-independent) */
    --uni-white: #ffffff;
    --uni-black: #080808;

    /* Radius */
    --uni-radius: 0.25rem;     /* 4px — buttons, inputs, links */
    --uni-radius-md: 0.5rem;   /* 8px — cards, badges */
    --uni-radius-lg: 1rem;     /* 16px — hero, large cards */

    /* Spacing */
    --uni-space-xs: 4px;
    --uni-space-sm: 8px;
    --uni-space-md: 12px;
    --uni-space-lg: 16px;
    --uni-space-xl: 20px;
    --uni-space-2xl: 24px;
    --uni-space-3xl: 32px;
    --uni-space-4xl: 48px;

    /* Layout */
    --uni-sidebar-width: 248px;
    --uni-container-max: 81rem;

    /* Typography */
    --uni-font: 'Inter', system-ui, -apple-system, sans-serif;
    --uni-font-size-xs: 12px;       /* small meta, captions */
    --uni-font-size-sm: 13.6px;     /* sidebar links, secondary text */
    --uni-font-size-base: 14px;     /* buttons, primary body */
    --uni-font-size-md: 16px;       /* default body, inputs */
    --uni-font-size-lg: 20px;       /* sub-headings */
    --uni-font-size-xl: 32px;       /* page titles */
    --uni-font-size-hero: 48px;     /* hero headings */

    /* Lesson body typography (long-form reading) */
    --uni-lesson-body-size: 17px;
    --uni-lesson-body-leading: 1.8;
    --uni-lesson-h2-size: 28px;
    --uni-lesson-h3-size: 24px;
    --uni-lesson-h4-size: 22px;
    --uni-lesson-quote-size: 18px;         /* editorial italic blockquote */
    --uni-lesson-anchor-offset: 60px;       /* scroll-margin-top для якорей h2 */

    /* Transitions */
    --uni-transition-fast: 0.1s;
    --uni-transition-base: 0.15s;
    --uni-transition-slow: 0.3s;

    /* Effects */
    --uni-blur-sm: blur(5px);
    --uni-blur-md: blur(12px);

    /* Overlay & Glass */
    --uni-overlay-bg: rgba(0, 0, 0, 0.5);
    --uni-overlay-light: rgba(255, 255, 255, 0.3);
    --uni-overlay-medium: rgba(255, 255, 255, 0.85);
    --uni-overlay-dark: rgba(0, 0, 0, 0.8);
    --uni-overlay-gradient: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.3) 100%);
    --uni-glass-bg: rgba(255, 255, 255, 0.95);
    --uni-glass-blur: var(--uni-blur-sm);
}

/* --- Design Tokens: Dark --- */
[data-theme="dark"] .university-page {
    --uni-bg: #080808;
    --uni-bg-secondary: #171717;
    --uni-bg-tertiary: #222222;
    --uni-bg-card: #171717;
    --uni-bg-course-placeholder: #FB9F2D;

    --uni-text-primary: #ffffff;
    --uni-text-secondary: #ababab;
    --uni-text-tertiary: #5a5a5a;
    --uni-text-muted: #ababab;
    --uni-sidebar-text: #ffffff;

    --uni-border: #363636;
    --uni-border-hover: #ffffff;

    --uni-shadow-card: rgba(0, 0, 0, 0.3) 0px 2px 4px 0px;
    --uni-shadow-card-hover: rgba(0, 0, 0, 0.5) 0px 6px 16px 0px;

    --uni-overlay-bg: rgba(0, 0, 0, 0.7);
    --uni-glass-bg: rgba(8, 8, 8, 0.95);
}

/* --- Ghost Content Width --- */
.kg-width-wide {
    max-width: 1040px;
    margin-left: auto;
    margin-right: auto;
}

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

/* --- Base Reset --- */
.university-page {
    margin: 0;
    padding: 0;
    font-family: var(--uni-font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--uni-text-secondary);
    background-color: var(--uni-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: visible !important;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.university-page *,
.university-page *::before,
.university-page *::after {
    box-sizing: border-box;
}

.university-page h1,
.university-page h2,
.university-page h3 {
    margin: 0;
    color: var(--uni-text-primary);
    font-family: var(--uni-font);
    font-weight: 600;
}

.university-page p { margin: 0; }
.university-page a { text-decoration: none; }
.university-page a:not([class]) { color: inherit; }
.university-page a:focus-visible {
    outline: 2px solid var(--uni-accent);
    outline-offset: 2px;
    border-radius: var(--uni-radius);
}
.university-page ul { list-style: none; margin: 0; padding: 0; }
.university-page img { max-width: 100%; height: auto; display: block; }
.university-page button { font-family: var(--uni-font); }

/* No hyphenation in headings and interactive elements (typography rule) */
.university-page h1,
.university-page h2,
.university-page h3,
.university-page h4,
.university-page h5,
.university-page h6,
.university-page button,
.uni-btn,
.uni-sidebar-link,
.uni-badge-new,
.uni-mobile-menu a,
.uni-topbar-nav a {
    hyphens: none;
}

/* ========================================
   Interactive States (universal)
   :focus-visible — keyboard accessibility ring
   :active        — clicked feedback (translateY 1px + flat shadow)
   ======================================== */
.uni-btn:focus-visible,
.uni-sidebar-link:focus-visible,
.uni-card-course:focus-visible,
.uni-card-article:focus-visible,
.uni-carousel-btn:focus-visible,
.uni-breadcrumbs a:focus-visible,
.uni-breadcrumbs-back:focus-visible,
.uni-footer-col a:focus-visible,
.uni-footer-socials a:focus-visible,
.uni-mobile-menu a:focus-visible,
.uni-topbar-nav a:focus-visible,
.uni-topbar-nav button:focus-visible,
.uni-course-lesson-item:focus-visible,
.uni-lesson-sidebar-item:focus-visible,
.uni-lesson-toc-item:focus-visible,
.uni-lesson-nav a:focus-visible,
.uni-theme-toggle:focus-visible,
.uni-theme-toggle-mobile:focus-visible,
.uni-burger:focus-visible {
    outline: 2px solid var(--uni-accent);
    outline-offset: 2px;
    border-radius: var(--uni-radius);
}

/* :active — buttons and pseudo-buttons get pressed-down feedback */
.uni-btn:active,
.uni-carousel-btn:active,
.uni-theme-toggle:active,
.uni-theme-toggle-mobile:active {
    transform: translateY(1px);
    box-shadow: var(--uni-shadow-btn-active);
}

/* :active for nav links — subtle background shift */
.uni-sidebar-link:active,
.uni-mobile-menu a:active,
.uni-topbar-nav a:active,
.uni-topbar-nav button:active {
    background: var(--uni-bg-tertiary);
}

/* ========================================
   Layout: Sidebar + Main
   ======================================== */
.uni-layout {
    display: flex;
    min-height: 100vh;
}

/* --- Sidebar --- */
.uni-sidebar {
    position: sticky;
    top: 0;
    left: 0;
    width: var(--uni-sidebar-width);
    height: 100vh;
    flex-shrink: 0;
    border-right: 1px solid var(--uni-border);
    background: var(--uni-bg);
    overflow-y: auto;
    z-index: 100;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    color: var(--uni-sidebar-text);
    --uni-text-primary: var(--uni-sidebar-text);
    --uni-text-secondary: var(--uni-sidebar-text);
    --uni-text-tertiary: var(--uni-sidebar-text);
}

.uni-sidebar-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 16px;
}

/* Logo row */
.uni-sidebar-logo-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    margin-bottom: 12px;
    font-size: 13.6px;
    color: var(--uni-text-primary);
}

.uni-sidebar-logo-row img {
    width: 24px;
    height: 24px;
    border-radius: var(--uni-radius);
}

.uni-sidebar-logo-brand {
    font-weight: 700;
}

.uni-sidebar-logo-sub {
    font-weight: 400;
}

/* Divider between sections */
.uni-sidebar-divider {
    height: 1px;
    background: var(--uni-border);
    margin: 8px 0;
}

/* --- Sidebar Sections --- */
.uni-sidebar-section {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 16px;
}

.uni-sidebar-label {
    font-size: 9.6px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--uni-text-muted);
    padding: 0 16px;
    margin-top: 8px;
    margin-bottom: 4px;
}

.uni-sidebar-link,
.uni-sidebar-link:link,
.uni-sidebar-link:visited {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    font-family: inherit;
    font-size: 13.6px;
    font-weight: 400;
    color: var(--uni-text-primary);
    border-radius: var(--uni-radius);
    border: none;
    background: none;
    cursor: pointer;
    text-align: left;
    width: 100%;
    transition: background-color 0.1s;
}

.uni-sidebar-link:hover {
    background: var(--uni-bg-secondary);
    color: var(--uni-text-primary);
}

.uni-sidebar-link-active {
    background: var(--uni-bg-tertiary);
    font-weight: 500;
}

.uni-sidebar-link svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    opacity: 1;
}

.uni-sidebar-link kbd {
    margin-left: auto;
    font-size: 11px;
    font-family: var(--uni-font);
    color: var(--uni-text-muted);
    background: none;
    border: none;
    padding: 0;
}

/* External link arrow */
.uni-sidebar-external {
    margin-left: auto;
    font-size: 12px;
    color: var(--uni-text-muted);
}

/* Primary CTA inside left nav sidebar — full width with margin around */
.uni-sidebar > .uni-btn-primary {
    width: 100%;
    justify-content: center;
    margin: var(--uni-space-md) 0 var(--uni-space-xs);
}

/* --- Sidebar Bottom --- */
.uni-sidebar-bottom {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.uni-sidebar-bottom-icons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 4px 0;
}

.uni-sidebar-bottom-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--uni-radius);
    color: var(--uni-text-tertiary);
    transition: background 0.1s, color 0.1s;
}

.uni-sidebar-bottom-icons a:hover {
    background: var(--uni-bg-secondary);
    color: var(--uni-text-primary);
}

/* --- Theme Toggle --- */
.uni-theme-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    font-size: 13.6px;
    font-weight: 400;
    color: var(--uni-text-primary);
    border-radius: var(--uni-radius);
    border: none;
    background: none;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.1s;
    font-family: var(--uni-font);
}

.uni-theme-toggle:hover {
    background: var(--uni-bg-secondary);
}

[data-theme="light"] .uni-theme-icon-sun { display: none; }
[data-theme="light"] .uni-theme-icon-moon { display: block; }
[data-theme="dark"] .uni-theme-icon-sun { display: block; }
[data-theme="dark"] .uni-theme-icon-moon { display: none; }

.uni-theme-toggle-mobile {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--uni-text-primary);
    border-radius: var(--uni-radius);
}

.uni-theme-toggle-mobile:hover {
    background: var(--uni-bg-secondary);
}

/* --- Mobile Topbar (hidden on desktop) --- */
.uni-topbar {
    display: none;
}

/* ========================================
   Main Content Area
   ======================================== */
.uni-main {
    flex: 1;
    min-width: 0;
}

.uni-container {
    max-width: var(--uni-container-max);
    margin: 0 auto;
    padding: 0 48px;
}

/* --- Buttons --- */
.uni-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 20px;
    border-radius: var(--uni-radius);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--uni-font);
    cursor: pointer;
    transition: all 0.15s;
    border: none;
    white-space: nowrap;
}

.uni-btn-primary {
    background: var(--uni-accent);
    color: var(--uni-text-on-accent);
    box-shadow: var(--uni-shadow-btn), var(--uni-shadow-btn-inset);
}

.uni-btn-primary:hover {
    background: var(--uni-accent-hover);
    color: var(--uni-text-on-accent);
}

.uni-btn-secondary {
    background: var(--uni-bg-card);
    color: var(--uni-text-primary);
    border: 1px solid var(--uni-border);
}

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

.uni-btn-large {
    padding: 16px 24px;
}

/* ========================================
   Hero
   ======================================== */
.uni-hero {
    padding: 48px 0 48px;
    text-align: center;
    background: linear-gradient(180deg, var(--uni-bg-secondary) 0%, var(--uni-bg) 100%);
}

.uni-hero-inner {
    max-width: 900px;
    margin: 0 auto !important;
    text-align: center;
}

.uni-hero h1 {
    font-size: clamp(2.5rem, 5vw + 1rem, 5.5rem);
    font-weight: 600;
    line-height: 1.06;
    color: var(--uni-text-primary);
    margin-bottom: 48px;
}

.uni-hero-subtitle,
.university-page .uni-hero-subtitle,
.university-page p.uni-hero-subtitle {
    font-size: 21px !important;
    line-height: 1.5 !important;
    color: var(--uni-text-secondary) !important;
    max-width: 600px !important;
    margin: 0 auto 40px !important;
    text-align: center !important;
}

.uni-hero-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* ========================================
   Sections
   ======================================== */
.uni-section {
    padding: 48px 0;
}

.uni-section-header {
    margin-bottom: 32px;
}

.uni-section-header h2 {
    font-size: clamp(1.5rem, 2vw + 0.5rem, 2.25rem);
    font-weight: 600;
    line-height: 1.2;
}

/* --- View All Button --- */
.uni-view-all {
    display: flex;
    justify-content: center;
    margin-top: 32px;
}

.uni-view-all a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 16px 24px;
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    font-size: 14px;
    font-weight: 600;
    color: var(--uni-text-primary);
    width: 100%;
    justify-content: center;
    transition: border-color 0.15s;
}

.uni-view-all a:hover {
    border-color: var(--uni-border-hover);
}

.uni-load-more-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 16px 24px;
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    font-size: 14px;
    font-weight: 600;
    font-family: var(--uni-font);
    color: var(--uni-text-primary);
    background: transparent;
    width: 100%;
    justify-content: center;
    cursor: pointer;
    transition: border-color 0.15s;
}

.uni-load-more-btn:hover {
    border-color: var(--uni-border-hover);
}

.uni-load-more-btn:disabled {
    opacity: 0.5;
    cursor: default;
}

.uni-load-more-btn.is-hidden {
    display: none;
}

/* ========================================
   Course Cards (2-col flex wrap)
   ======================================== */
.uni-courses-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.uni-card-course {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    background: var(--uni-bg-card);
    overflow: hidden;
    transition: transform 0.2s ease, border-color 0.15s;
    cursor: pointer;
}

.uni-card-course:hover {
    border-color: var(--uni-border-hover);
    transform: scale(1.02);
}

.uni-card-course-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--uni-bg-secondary);
    overflow: hidden;
}

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

.uni-card-course-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--uni-bg-secondary);
    color: rgba(255, 255, 255, 0.3);
    font-size: 48px;
}

.uni-card-course-body {
    padding: 20px;
    flex: 1;
}

.uni-card-course-image .uni-badge-new {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 1;
}

.uni-badge-new {
    display: inline-block;
    background: var(--uni-accent);
    color: var(--uni-text-on-accent);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: var(--uni-radius);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.uni-card-course-title {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 8px !important;
}

.uni-card-course-desc {
    font-size: 14px;
    line-height: 1.6;
    color: var(--uni-text-secondary);
}

.uni-card-course-meta {
    display: flex;
    align-items: center;
    border-top: 1px solid var(--uni-border);
    font-size: 13px;
    color: var(--uni-text-secondary);
}

.uni-card-course-level {
    font-weight: 400;
    padding: 12px 20px;
    flex: 1;
}

.uni-card-course-meta-right {
    display: flex;
    align-items: center;
    margin-left: auto;
    flex-shrink: 0;
}

.uni-card-course-time {
    padding: 12px 16px;
    border-left: 1px solid var(--uni-border);
}

.uni-card-course-meta .uni-meta-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    border-left: 1px solid var(--uni-border);
    color: var(--uni-text-primary);
    opacity: 0.4;
    transition: opacity 0.15s;
}

.uni-card-course:hover .uni-meta-arrow {
    opacity: 1;
}

/* ========================================
   Article Cards (4-col grid, compact)
   ======================================== */
.uni-materials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.uni-card-article {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    background: var(--uni-bg-card);
    padding: 12px;
    transition: transform 0.2s ease, border-color 0.15s;
}

.uni-card-article:hover {
    border-color: var(--uni-border-hover);
    transform: scale(1.02);
}

.uni-card-article-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--uni-radius);
    overflow: hidden;
    background: var(--uni-bg-secondary);
    margin-bottom: 12px;
}

.uni-card-article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.uni-card-article-image-placeholder {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    background: var(--uni-bg-course-placeholder);
    padding: var(--uni-space-md) var(--uni-space-lg);
}

.uni-card-article-course-label {
    font-size: var(--uni-font-size-lg);
    font-weight: 600;
    line-height: 1.25;
    color: var(--uni-white);
    text-align: left;
}

.uni-card-article-title {
    font-size: 14px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--uni-text-primary);
    margin-bottom: 4px;
}

.uni-card-article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--uni-text-secondary);
}

.uni-card-article-category {
    font-weight: 400;
}

/* ========================================
   Carousel (Continue Learning)
   ======================================== */
.uni-section-header-with-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.uni-carousel-nav {
    display: flex;
    gap: 8px;
}

.uni-carousel-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    background: var(--uni-bg-card);
    cursor: pointer;
    color: var(--uni-text-primary);
    transition: border-color 0.15s;
    box-shadow: none;
}

.uni-carousel-btn:hover {
    border-color: var(--uni-border-hover);
}

.uni-carousel {
    overflow: hidden;
}

.uni-carousel-track {
    display: flex;
    gap: 16px;
    transition: transform 0.3s ease;
}

.uni-carousel-card {
    flex: 0 0 calc(33.333% - 11px);
    min-width: 280px;
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    background: var(--uni-bg-card);
    padding: 12px;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, border-color 0.15s;
}

.uni-carousel-card:hover {
    border-color: var(--uni-border-hover);
    transform: scale(1.02);
}

.uni-carousel-card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--uni-radius);
    overflow: hidden;
    background: var(--uni-bg-secondary);
    margin-bottom: 16px;
}

.uni-carousel-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.uni-carousel-card-title {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--uni-text-primary);
    margin-bottom: 6px;
}

.uni-carousel-card-desc {
    font-size: 14px;
    line-height: 1.5;
    color: var(--uni-text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========================================
   Breadcrumbs
   ======================================== */
.uni-breadcrumbs {
    border-bottom: 1px solid var(--uni-border);
    padding: 12px 0;
    font-size: 13px;
    color: var(--uni-text-secondary);
}

.uni-breadcrumbs-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.uni-breadcrumbs-left {
    display: flex;
    align-items: center;
    min-width: 0;
    flex: 1 1 auto;
}

.uni-breadcrumbs-left > span:not(.uni-breadcrumbs-sep),
.uni-breadcrumb-current {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.uni-breadcrumbs a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--uni-bg-card);
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    color: var(--uni-text-secondary);
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
    transition: border-color 0.15s, color 0.15s;
}

.uni-breadcrumbs a:hover {
    border-color: var(--uni-border-hover);
    color: var(--uni-text-primary);
}

.uni-breadcrumbs-sep {
    margin: 0 8px;
    color: var(--uni-text-muted);
    flex-shrink: 0;
}

.uni-breadcrumbs-back {
    font-size: 18px;
    opacity: 0.4;
    transition: opacity 0.15s;
}

.uni-breadcrumbs-back:hover {
    opacity: 1;
}

.uni-breadcrumbs-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.uni-breadcrumbs a.uni-breadcrumbs-edit {
    padding: 6px;
    line-height: 0;
    cursor: pointer;
}

.uni-breadcrumbs a[hidden] { display: none; }

.uni-breadcrumbs a.uni-breadcrumbs-next {
    padding: 6px 10px;
    line-height: 0;
}

.uni-breadcrumbs a.uni-breadcrumbs-next svg {
    display: block;
}

/* Responsive utilities for breadcrumb segments */
@media (max-width: 1024px) {
    .uni-breadcrumbs .u-hide-tablet { display: none !important; }
}

@media (max-width: 640px) {
    .uni-breadcrumbs .u-hide-mobile { display: none !important; }
}

/* ========================================
   Course Hero Banner
   ======================================== */
.uni-course-hero {
    position: relative;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
    background: var(--uni-bg-secondary);
    border-radius: var(--uni-radius);
    margin-top: 16px;
}

.uni-course-hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.uni-course-hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--uni-overlay-gradient);
}

.uni-course-hero-content {
    position: relative;
    z-index: 1;
    padding: 120px 48px 48px;
    width: 100%;
}

.uni-course-hero-content h1 {
    font-size: clamp(1.75rem, 4vw + 0.5rem, 5.5rem);
    font-weight: 600;
    line-height: 1.06;
    color: var(--uni-text-on-accent) !important;
    margin-bottom: 12px;
    max-width: 800px;
}

.uni-course-hero-content p {
    font-size: 20px;
    line-height: 1.5;
    color: rgba(255,255,255,0.85) !important;
    max-width: 600px;
}

/* ========================================
   Course Page Layout (2-col)
   ======================================== */
.uni-course-layout {
    display: flex;
    gap: 48px;
    padding: 48px 0;
    align-items: flex-start;
}

.uni-course-content {
    flex: 1;
    min-width: 0;
}

.uni-course-description {
    font-size: 17px;
    line-height: 1.8;
    font-weight: 400;
    color: var(--uni-text-secondary);
    margin-bottom: 48px;
}

.uni-course-description h1,
.uni-course-description h2,
.uni-course-description h3,
.uni-course-description h4,
.uni-course-description h5,
.uni-course-description h6 {
    font-weight: 600;
    font-family: var(--uni-font);
    color: var(--uni-text-primary);
}

.uni-course-description h2 {
    font-size: 28px;
    padding-top: 14.4px;
    margin-bottom: 17.6px;
    line-height: 1.4;
}

.uni-course-description h3 {
    font-size: 24px;
    padding-top: 20.8px;
    margin-bottom: 14.4px;
    line-height: 1.5;
}

.uni-course-description h4 {
    font-size: 22px;
    padding-top: 8px;
    margin-bottom: 24px;
}

.uni-course-description p {
    padding-top: 8px;
    margin-bottom: 24px !important;
}

.uni-course-description > :first-child {
    padding-top: 0;
}

.uni-course-description b,
.uni-course-description strong {
    font-weight: 700;
}

.uni-course-description ul,
.uni-course-description ol {
    margin: 0 0 24px 15px;
    padding-left: 0;
}

.uni-course-description ul:not([class]) {
    list-style: none;
}

.uni-course-description ul:not([class]) li {
    position: relative;
    padding-left: 20px;
    list-style-type: none;
}

.uni-course-description ul:not([class]) li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 5px;
    height: 5px;
    background: var(--uni-accent);
    border-radius: 50%;
}

.uni-course-description ol {
    margin-left: 15px;
    list-style-type: decimal;
    list-style-position: outside;
}

.uni-course-description li {
    padding-bottom: 8px;
}

.uni-course-description li:last-of-type {
    padding-bottom: 0;
}

.uni-course-description a:not([class]) {
    color: var(--uni-accent);
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 0.2em;
    font-weight: 600;
}

.uni-course-description a:not([class]):hover {
    color: var(--uni-text-primary);
    text-decoration-style: solid;
}

.uni-course-description img {
    max-width: 100%;
    height: auto;
    border-radius: var(--uni-radius-md);
    border: 1px solid var(--uni-border);
}

/* ========================================
   Course TOC (Table of Contents)
   ======================================== */
.uni-course-toc {
    margin-top: var(--uni-space-4xl);
}

.uni-course-toc h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
}

.uni-course-lessons {
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    overflow: hidden;
}

.uni-course-lesson-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--uni-text-secondary);
    border-bottom: 1px solid var(--uni-border);
    transition: background 0.1s;
}

.uni-course-lesson-item:last-child {
    border-bottom: none;
}

.uni-course-lesson-item:hover {
    background: var(--uni-bg-secondary);
}

.uni-course-lesson-icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--uni-text-secondary);
}

.uni-course-lesson-item.is-completed {
    background: color-mix(in srgb, var(--uni-accent) 4%, transparent);
}

.uni-course-lesson-title {
    flex: 1;
    font-weight: 400;
}

.uni-course-lesson-duration {
    flex-shrink: 0;
    font-size: var(--uni-font-size-xs);
    color: var(--uni-text-muted);
}

/* ========================================
   Course Instructors
   ======================================== */
.uni-course-instructors {
    margin-top: var(--uni-space-4xl);
}

.uni-course-instructors h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
}

.uni-course-instructors-track {
    display: flex;
    gap: var(--uni-space-2xl);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding: 0;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--uni-space-md);
    scrollbar-width: thin;
    scrollbar-color: var(--uni-border-hover) transparent;
}

.uni-course-instructors-track::-webkit-scrollbar {
    height: 6px;
}

.uni-course-instructors-track::-webkit-scrollbar-track {
    background: transparent;
}

.uni-course-instructors-track::-webkit-scrollbar-thumb {
    background: var(--uni-border);
    border-radius: 3px;
}

.uni-course-instructors-track::-webkit-scrollbar-thumb:hover {
    background: var(--uni-border-hover);
}

.uni-course-instructor {
    flex: 0 0 25rem; /* 400px @ 16px root — layout-уровень, масштабируется от base font-size */
    scroll-snap-align: start;
    display: flex;
    flex-direction: column;
    gap: var(--uni-space-md);
}

.uni-course-instructor-header {
    display: flex;
    align-items: center;
    gap: var(--uni-space-lg);
}

.uni-course-instructor-avatar {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: var(--uni-radius-md);
    border: 1px solid var(--uni-border);
}

.uni-course-instructor-avatar--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--uni-bg-secondary);
    color: var(--uni-text-tertiary);
}

.uni-course-instructor-name {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--uni-text-primary);
    line-height: 1.3;
}

.uni-course-instructor-bio {
    margin: 0;
    max-width: 60ch; /* типографический optimum 45–75 символов на строку */
    font-size: 16px;
    color: var(--uni-text-secondary);
    line-height: 1.6;
}

/* ========================================
   Course Sidebar (Sticky)
   ======================================== */
.uni-course-sidebar {
    width: 300px;
    flex-shrink: 0;
    position: sticky;
    top: 24px;
}

.uni-course-sidebar-card {
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    overflow: hidden;
}

.uni-course-sidebar-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

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

/* Label rows — gray bg */
.uni-sidebar-label-row {
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 700;
    color: var(--uni-text-primary);
    background: var(--uni-bg-secondary);
    border-top: 1px solid var(--uni-border);
}

/* Content rows */
.uni-sidebar-content-row {
    padding: 16px 20px;
    background: var(--uni-bg-card);
    border-top: 1px solid var(--uni-border);
}

.uni-course-progress-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.uni-course-progress-bar {
    flex: 1;
    height: 6px;
    background: var(--uni-bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.uni-course-progress-fill {
    width: 0;
    height: 100%;
    background: var(--uni-accent);
    border-radius: 3px;
    transition: width var(--uni-transition-slow);
}

.uni-course-progress-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--uni-text-primary);
    flex-shrink: 0;
}

.uni-sidebar-cta-row {
    padding: 20px;
}

.uni-course-sidebar-enroll {
    width: 100%;
    justify-content: center;
}

.uni-course-sidebar-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.uni-course-sidebar-details li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--uni-text-secondary);
}

.uni-course-sidebar-details li svg {
    flex-shrink: 0;
    color: var(--uni-text-muted);
}

/* ========================================
   Lesson Page
   ======================================== */
.uni-lesson-layout {
    display: flex;
    gap: 48px;
    padding: 48px 0;
    align-items: flex-start;
}

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

/* Static pages — same content layout but standalone (no sidebar), narrower for readability */
.uni-page-content {
    max-width: 720px;
    margin: 0 auto;
    padding: var(--uni-space-4xl) 0;
}

.uni-lesson-feature-image {
    width: 100%;
    border-radius: var(--uni-radius);
    overflow: hidden;
    margin-bottom: 32px;
}

.uni-lesson-feature-image img {
    width: 100%;
    height: auto;
    display: block;
}

.uni-lesson-title {
    font-size: clamp(1.75rem, 2.5vw + 0.5rem, 2.25rem);
    font-weight: 600;
    font-family: var(--gh-font-heading, var(--uni-font));
    line-height: 1.2;
    margin-bottom: 32px !important;
}

.uni-lesson-body {
    font-size: var(--uni-lesson-body-size);
    line-height: var(--uni-lesson-body-leading);
    font-weight: 400;
    font-family: var(--gh-font-body, var(--uni-font));
    color: var(--uni-text-secondary);
}

.uni-lesson-body h1,
.uni-lesson-body h2,
.uni-lesson-body h3,
.uni-lesson-body h4,
.uni-lesson-body h5,
.uni-lesson-body h6 {
    font-weight: 600;
    font-family: var(--gh-font-heading, var(--uni-font));
    color: var(--uni-text-primary);
}

.uni-lesson-body h2 {
    font-size: var(--uni-lesson-h2-size);
    padding-top: var(--uni-space-lg);
    margin-bottom: var(--uni-space-lg);
    line-height: 1.4;
    scroll-margin-top: var(--uni-lesson-anchor-offset);
}

.uni-lesson-body h3 {
    font-size: var(--uni-lesson-h3-size);
    padding-top: var(--uni-space-xl);
    margin-bottom: var(--uni-space-lg);
    line-height: 1.5;
}

.uni-lesson-body h4 {
    font-size: var(--uni-lesson-h4-size);
    padding-top: var(--uni-space-sm);
    margin-bottom: var(--uni-space-2xl);
}

.uni-lesson-body p {
    padding-top: var(--uni-space-sm);
    margin-bottom: var(--uni-space-2xl) !important;
}

.uni-lesson-body > :first-child {
    padding-top: 0;
}

.uni-lesson-body b,
.uni-lesson-body strong {
    font-weight: 700;
}

.uni-lesson-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--uni-radius-md);
    margin: var(--uni-space-sm) 0 var(--uni-space-2xl);
}

/* Image cards: regular = 50% колонки (центр), wide = 100% колонки */
.uni-lesson-body figure.kg-image-card {
    max-width: 50%;
    margin-inline: auto;
}
.uni-lesson-body figure.kg-image-card.kg-width-wide {
    max-width: 100%;
}

/* Подпись к картинке: центр, мельче, приглушённый цвет, italic, ближе к картинке */
.uni-lesson-body figure.kg-card-hascaption img {
    margin-bottom: 0;
}
.uni-lesson-body figure figcaption {
    margin-top: var(--uni-space-md);
    text-align: center;
    font-size: var(--uni-font-size-sm);
    line-height: 1.5;
    color: var(--uni-text-muted);
    font-style: italic;
}

/* Gallery card (Koenig). flex задаётся inline из JS пропорционально img.width/img.height */
.uni-lesson-body .kg-gallery-container {
    display: flex;
    flex-direction: column;
    gap: var(--uni-space-sm);
}
.uni-lesson-body .kg-gallery-row {
    display: flex;
    flex-direction: row;
    gap: var(--uni-space-sm);
}
.uni-lesson-body .kg-gallery-image {
    flex: 1 1 0;
    min-width: 0;
}
.uni-lesson-body .kg-gallery-image a,
.uni-lesson-body .kg-gallery-image img {
    display: block;
    margin: 0;
    width: 100%;
    height: auto;
    border-radius: var(--uni-radius-md);
}
/* Lift-hover для всех кликабельных картинок (одиночные + галерея) */
.uni-lesson-body figure.kg-image-card a,
.uni-lesson-body .kg-gallery-image a {
    display: block;
    cursor: zoom-in;
    border-radius: var(--uni-radius-md);
    transition: transform 200ms ease-out, box-shadow 200ms ease-out;
    will-change: transform;
}
.uni-lesson-body figure.kg-image-card a:hover,
.uni-lesson-body .kg-gallery-image a:hover {
    transform: translateY(-2px);
    box-shadow: var(--uni-shadow-card-hover);
}
@media (max-width: 640px) {
    .uni-lesson-body .kg-gallery-row { flex-direction: column; }
}

/* Ghost Koenig embed cards (видео, iframe от kinescope/youtube/vimeo и т.п.) */
.uni-lesson-body .kg-embed-card,
.uni-lesson-body .kg-video-card,
.uni-lesson-body figure {
    margin: var(--uni-space-sm) 0 var(--uni-space-2xl);
}

.uni-lesson-body .kg-embed-card iframe,
.uni-lesson-body .kg-video-card iframe,
.uni-lesson-body figure iframe {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    border-radius: var(--uni-radius-md);
    display: block;
}

/* Koenig button card — brand-orange accent CTA */
.uni-lesson-body .kg-button-card,
.uni-course-description .kg-button-card {
    margin: var(--uni-space-sm) 0 var(--uni-space-2xl);
}

.uni-lesson-body .kg-button-card a.kg-btn-accent,
.uni-course-description .kg-button-card a.kg-btn-accent {
    background-color: var(--uni-brand-orange);
    color: var(--uni-white);
    transition: background-color 0.15s;
}

.uni-lesson-body .kg-button-card a.kg-btn-accent:hover,
.uni-course-description .kg-button-card a.kg-btn-accent:hover {
    background-color: var(--uni-brand-orange-hover);
    color: var(--uni-white);
    text-decoration: none;
}

.uni-lesson-body ul,
.uni-lesson-body ol {
    margin: 0 0 var(--uni-space-2xl) var(--uni-space-lg);
    padding-left: 0;
}

.uni-lesson-body ul:not([class]) {
    list-style: none;
}

.uni-lesson-body ul:not([class]) li {
    position: relative;
    padding-left: var(--uni-space-xl);
    list-style-type: none;
}

.uni-lesson-body ul:not([class]) li::before {
    content: '';
    position: absolute;
    left: 0;
    top: var(--uni-space-md);
    width: 5px;
    height: 5px;
    background: var(--uni-accent);
    border-radius: 50%;
}

.uni-lesson-body ol {
    margin-left: var(--uni-space-lg);
    list-style-type: decimal;
    list-style-position: outside;
}

.uni-lesson-body li {
    padding-bottom: var(--uni-space-sm);
}

.uni-lesson-body li:last-of-type {
    padding-bottom: 0;
}

.uni-lesson-body a:not([class]) {
    color: var(--uni-accent);
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 0.2em;
    font-weight: 600;
}

.uni-lesson-body a:not([class]):hover {
    color: var(--uni-text-primary);
    text-decoration-style: solid;
}

/* Editorial blockquote — italic serif с висячей кавычкой «. */
.uni-lesson-body blockquote,
.uni-course-description blockquote {
    position: relative;
    margin: var(--uni-space-2xl) 0;
    padding: var(--uni-space-xs) 0 var(--uni-space-xs) var(--uni-space-4xl);
    font-size: var(--uni-lesson-quote-size);
    font-style: italic;
    font-family: 'Georgia', 'Times New Roman', serif;
    line-height: 1.6;
    color: var(--uni-text-primary);
    border-left: 3px solid var(--uni-accent);
    background: transparent;
    border-radius: 0;
}

.uni-lesson-body blockquote::before,
.uni-course-description blockquote::before {
    content: '«';
    position: absolute;
    left: var(--uni-space-sm);
    top: -0.1em;
    font-size: 2.6em;
    line-height: 1;
    color: var(--uni-text-tertiary);
    font-family: 'Georgia', serif;
    pointer-events: none;
}

.uni-lesson-body blockquote p,
.uni-course-description blockquote p {
    padding-top: 0;
    margin-bottom: 0 !important;
}

/* Lesson complete button */
.uni-lesson-complete-section {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--uni-border);
    display: flex;
    justify-content: center;
}

.uni-lesson-complete-btn {
    gap: 8px;
}

.uni-lesson-complete-btn.is-completed {
    background: var(--uni-success) !important;
    pointer-events: none;
}

/* Course TOC at bottom of lesson */
.uni-lesson-course-toc {
    margin-top: 48px;
}

.uni-lesson-course-toc h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
}

.uni-lesson-toc-list {
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    overflow: hidden;
}

.uni-lesson-toc-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--uni-text-secondary);
    border-bottom: 1px solid var(--uni-border);
    transition: background 0.1s;
}

.uni-lesson-toc-item:last-child {
    border-bottom: none;
}

.uni-lesson-toc-item:hover {
    background: var(--uni-bg-secondary);
}

.uni-lesson-toc-item.is-current {
    background: color-mix(in srgb, var(--uni-accent) 6%, transparent);
    font-weight: 500;
}

.uni-lesson-toc-icon {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.uni-lesson-toc-title {
    flex: 1;
    min-width: 0;
}

.uni-lesson-toc-duration {
    flex-shrink: 0;
    font-size: var(--uni-font-size-xs);
    color: var(--uni-text-muted);
}

/* Sidebar: Up next */
.uni-sidebar-upnext-content {
    padding: 20px;
}

.uni-sidebar-upnext-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--uni-text-primary);
    line-height: 1.3;
    margin-bottom: 8px;
}

.uni-sidebar-upnext-excerpt {
    font-size: 14px;
    line-height: 1.5;
    color: var(--uni-text-secondary);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.uni-sidebar-complete-btn,
.uni-sidebar-complete-btn {
    display: flex;
    width: 100%;
    justify-content: center;
    align-items: center;
    gap: var(--uni-space-sm);
    background-color: var(--uni-accent);
    color: var(--uni-text-on-accent);
    border: none;
    border-radius: var(--uni-radius);
    padding: var(--uni-space-md) var(--uni-space-xl);
    font-family: var(--uni-font);
    font-size: var(--uni-font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--uni-transition-base) ease;
    box-shadow: var(--uni-shadow-btn), var(--uni-shadow-btn-inset);
}

.uni-sidebar-complete-btn svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.uni-sidebar-complete-btn:hover {
    background-color: var(--uni-accent-hover);
}

/* Lesson nav (prev/next) */
.uni-lesson-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--uni-border);
}

.uni-lesson-nav a {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 16px 20px;
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    font-size: 14px;
    color: var(--uni-text-secondary);
    transition: border-color 0.15s;
    min-width: 0;
    max-width: 48%;
}

.uni-lesson-nav a:hover {
    border-color: var(--uni-border-hover);
}

.uni-lesson-nav-label {
    font-size: var(--uni-font-size-xs);
    color: var(--uni-text-muted);
}

.uni-lesson-nav-title {
    font-weight: 500;
    color: var(--uni-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.uni-lesson-nav-next {
    margin-left: auto;
    text-align: right;
}

/* Lesson sidebar */
.uni-lesson-sidebar {
    width: 300px;
    flex-shrink: 0;
    position: sticky;
    top: 24px;
}

.uni-lesson-sidebar-card {
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    overflow: hidden;
}

.uni-lesson-sidebar-lessons {
    max-height: 400px;
    overflow-y: auto;
}

.uni-lesson-sidebar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    font-size: 13px;
    color: var(--uni-text-secondary);
    border-bottom: 1px solid var(--uni-border);
    transition: background 0.1s;
}

.uni-lesson-sidebar-item:last-child {
    border-bottom: none;
}

.uni-lesson-sidebar-item:hover {
    background: var(--uni-bg-secondary);
}

.uni-lesson-sidebar-item.is-current {
    background: color-mix(in srgb, var(--uni-accent) 8%, transparent);
    color: var(--uni-accent);
    font-weight: 500;
}

.uni-lesson-sidebar-item svg {
    flex-shrink: 0;
    color: var(--uni-text-muted);
}

.uni-lesson-sidebar-item.is-current svg {
    opacity: 1;
    color: var(--uni-accent);
}

.uni-lesson-sidebar-item-title {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.uni-lesson-sidebar-item-duration {
    flex-shrink: 0;
    font-size: 11px;
    color: var(--uni-text-muted);
}

/* ========================================
   Audience Cards
   ======================================== */
.uni-audience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.uni-audience-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    padding: 16px;
    background: var(--uni-bg-card);
    transition: transform 0.2s ease, border-color 0.15s;
}

.uni-audience-card:hover {
    border-color: var(--uni-border-hover);
    transform: scale(1.02);
}

.uni-audience-card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--uni-radius);
    overflow: hidden;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 56px;
    background: var(--uni-bg-secondary);
}

.uni-audience-card h3 {
    font-size: 24px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 8px;
}

.uni-audience-card p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--uni-text-secondary);
}

/* ========================================
   CTA Block
   ======================================== */
.uni-cta-block {
    padding: 96px 0;
}

.uni-cta-block-inner {
    background: var(--uni-accent);
    border-radius: var(--uni-radius-md);
    padding: 80px 48px;
    text-align: center;
    color: var(--uni-text-on-accent);
}

.uni-cta-block-inner h2 {
    font-size: 36px;
    font-weight: 600;
    line-height: 1.2;
    color: var(--uni-text-on-accent);
    margin-bottom: 16px;
}

.uni-cta-block-inner p {
    font-size: 18px;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

.uni-cta-block-inner .uni-btn {
    background: var(--uni-white);
    color: var(--uni-accent);
    box-shadow: var(--uni-shadow-btn);
}

.uni-cta-block-inner .uni-btn:hover {
    background: var(--uni-overlay-medium);
}

/* ========================================
   Footer
   ======================================== */
.uni-footer {
    padding: 96px 0 48px;
    border-top: 1px solid var(--uni-border);
    transition: background-color 0.2s ease;
}

.uni-footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 48px;
}

.uni-footer-col-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--uni-text-primary);
    margin-bottom: 16px;
}

.uni-footer-col a {
    display: block;
    font-size: var(--uni-font-size-base);
    color: var(--uni-text-muted);
    padding: var(--uni-space-xs) 0;
    transition: color var(--uni-transition-base);
}

.uni-footer-col a:hover {
    color: var(--uni-text-primary);
}

.uni-footer-bottom {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding-top: 32px;
    border-top: 1px solid var(--uni-border);
    font-size: 13px;
    color: var(--uni-text-secondary);
}

.uni-footer-bottom-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.uni-footer-legal {
    font-size: 11px;
    color: var(--uni-text-muted);
}

.uni-footer-socials {
    display: flex;
    align-items: center;
    gap: 16px;
}

.uni-footer-telegram-link {
    font-size: 13px;
    font-weight: 500;
}

.uni-footer-socials a {
    color: var(--uni-text-secondary);
    transition: color 0.15s;
    display: flex;
    align-items: center;
}

.uni-footer-socials a:hover {
    color: var(--uni-text-primary);
}

.uni-footer-socials svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   Search Modal
   ======================================== */
.uni-search-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--uni-overlay-bg);
    backdrop-filter: var(--uni-glass-blur);
    -webkit-backdrop-filter: var(--uni-glass-blur);
    align-items: flex-start;
    justify-content: center;
    padding-top: 120px;
}

.uni-search-overlay.is-open {
    display: flex;
}

.uni-search-modal {
    width: 100%;
    max-width: 640px;
    background: var(--uni-bg-card);
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius-md);
    overflow: hidden;
}

.uni-search-input-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--uni-border);
}

.uni-search-input-wrap svg {
    width: 20px;
    height: 20px;
    color: var(--uni-text-secondary);
    flex-shrink: 0;
}

.uni-search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 16px;
    font-family: var(--uni-font);
    color: var(--uni-text-primary);
    background: transparent;
}

.uni-search-input::placeholder {
    color: var(--uni-text-secondary);
}

.uni-search-close {
    background: none;
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    padding: 4px 8px;
    font-size: 11px;
    color: var(--uni-text-secondary);
    cursor: pointer;
    font-family: var(--uni-font);
}

.uni-search-results {
    max-height: 400px;
    overflow-y: auto;
    padding: 8px;
}

.uni-search-empty {
    padding: 32px 20px;
    text-align: center;
    color: var(--uni-text-secondary);
    font-size: 14px;
}

.uni-search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--uni-radius);
    cursor: pointer;
    transition: background-color 0.1s;
}

.uni-search-result-item:hover {
    background: var(--uni-bg);
}

.uni-search-result-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--uni-text-primary);
}

.uni-search-result-meta {
    font-size: 12px;
    color: var(--uni-text-secondary);
}

/* ========================================
   Input Groups (Pill Label)
   ======================================== */
.uni-input-group {
    position: relative;
    margin-bottom: 24px;
}

.uni-input-group .uni-pill-label {
    position: absolute;
    top: -8px;
    left: 12px;
    background: var(--uni-bg);
    padding: 0 8px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--uni-text-tertiary);
}

.uni-input-group input,
.uni-input-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--uni-border);
    border-radius: var(--uni-radius);
    font-size: 14px;
    font-family: var(--uni-font);
    color: var(--uni-text-primary);
    background: var(--uni-bg-card);
    transition: border-color 0.15s;
}

.uni-input-group input:focus,
.uni-input-group textarea:focus {
    outline: none;
    border-color: var(--uni-accent);
}

.uni-input-group input::placeholder,
.uni-input-group textarea::placeholder {
    color: var(--uni-text-tertiary);
}

/* --- Empty State --- */
.uni-empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--uni-text-secondary);
    font-size: 16px;
    border: 1px dashed var(--uni-border);
    border-radius: var(--uni-radius);
}

/* --- Burger --- */
.uni-burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 8px;
    border: none;
    background: transparent;
    cursor: pointer;
}

.uni-burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--uni-text-primary);
    border-radius: 1px;
    transform-origin: center;
    transition: transform 0.25s ease, opacity 0.2s ease;
}

.uni-burger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.uni-burger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.uni-burger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.uni-search-trigger-mobile {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--uni-text-primary);
}

/* --- Mobile dropdown menu --- */
.uni-mobile-menu {
    display: none;
    flex-direction: column;
    background: var(--uni-bg);
    border-bottom: 1px solid var(--uni-border);
    padding: 8px 16px 16px;
}

.uni-mobile-menu.is-open {
    display: flex;
}

.uni-mobile-menu a,
.uni-mobile-menu a:link,
.uni-mobile-menu a:visited {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    font-size: 15px;
    font-weight: 400;
    color: var(--uni-text-primary);
    border-radius: var(--uni-radius);
}

.uni-mobile-menu a svg {
    flex-shrink: 0;
    color: var(--uni-text-muted);
}

.uni-mobile-menu a:hover {
    background: var(--uni-bg-secondary);
}

.uni-mobile-menu .uni-theme-toggle-mobile {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    height: auto;
    padding: 10px 12px;
    justify-content: flex-start;
    font: inherit;
    font-size: 15px;
    text-align: left;
    color: var(--uni-text-primary);
}

.uni-mobile-menu .uni-theme-toggle-mobile svg {
    flex-shrink: 0;
    color: var(--uni-text-muted);
}

.uni-mobile-menu .uni-theme-toggle-mobile:hover {
    background: var(--uni-bg-secondary);
}

/* ========================================
   Responsive: Tablet (max-width: 991px)
   ======================================== */
@media (max-width: 991px) {
    .uni-sidebar {
        display: none;
    }

    .uni-layout {
        flex-direction: column;
    }

    .uni-main {
        width: 100%;
    }

    .uni-topbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: fixed;
        bottom: 16px;
        left: 8px;
        right: 8px;
        z-index: 100;
        height: 52px;
        padding: 0 12px;
        background: var(--uni-bg-secondary);
        border: 1px solid var(--uni-border);
        border-radius: 16px;
        box-shadow: var(--uni-shadow-card-hover);
    }

    .uni-main {
        padding-bottom: 84px;
    }

    .uni-mobile-menu {
        position: fixed;
        bottom: 84px;
        left: 8px;
        right: 8px;
        z-index: 99;
        border-radius: 16px;
        border: 1px solid var(--uni-border);
        background: var(--uni-bg-secondary);
        box-shadow: var(--uni-shadow-card-hover);
        padding: 8px;
    }

    .uni-topbar-brand {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        font-weight: 600;
        color: var(--uni-text-primary);
        flex-shrink: 0;
    }

    .uni-topbar-brand img {
        width: 24px;
        height: 24px;
        border-radius: var(--uni-radius);
    }

    .uni-topbar-nav {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .uni-topbar-nav a,
    .uni-topbar-nav a:link,
    .uni-topbar-nav a:visited,
    .uni-topbar-nav button {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        color: var(--uni-text-primary);
        opacity: 0.7;
        border-radius: var(--uni-radius);
        background: none;
        border: none;
        cursor: pointer;
        padding: 0;
    }

    .uni-topbar-nav a:hover,
    .uni-topbar-nav button:hover {
        opacity: 1;
        background: var(--uni-bg-secondary);
    }

    .uni-topbar-right {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .uni-container {
        padding: 0 16px;
    }

    .uni-hero-subtitle {
        font-size: 15px;
        margin-bottom: 0 !important;
        padding-bottom: 0 !important;
    }

    .uni-section {
        padding: 64px 0;
    }

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

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

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

    .uni-footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }

    .uni-cta-block-inner {
        padding: 48px 24px;
    }

    .uni-course-layout {
        flex-direction: column;
    }

    .uni-course-content {
        width: 100%;
    }

    .uni-course-sidebar {
        width: 100%;
        position: static;
    }

    .uni-course-instructors-track {
        flex-direction: column;
        overflow-x: visible;
        scroll-snap-type: none;
        padding-bottom: 0;
    }

    .uni-course-instructor {
        flex: 1 1 auto;
    }

    .uni-lesson-layout {
        flex-direction: column;
    }

    .uni-lesson-content {
        width: 100%;
    }

    .uni-lesson-sidebar {
        width: 100%;
        position: static;
    }

}

/* ========================================
   Responsive: Mobile (max-width: 640px)
   ======================================== */
@media (max-width: 640px) {
    /* Mobile text styles — match blog .text */
    .uni-lesson-body {
        font-size: 14px;
    }

    .uni-lesson-body h1 {
        font-size: 22px;
    }

    .uni-lesson-body h2 {
        font-size: 20px;
    }

    .uni-lesson-body h3 {
        font-size: 18px;
    }

    .uni-lesson-body h4 {
        font-size: 16px;
    }

    .uni-lesson-body h5 {
        font-size: 14px;
    }

    .uni-lesson-body h6 {
        font-size: 13px;
    }

    .uni-lesson-body p {
        margin-bottom: 12.8px !important;
    }

    .uni-lesson-body figure,
    .uni-lesson-body iframe,
    .uni-lesson-body p {
        margin-bottom: 12.8px;
    }

    .uni-lesson-title {
        font-size: 26px;
    }

    .uni-course-description {
        font-size: 14px;
    }

    .uni-course-description h2 {
        font-size: 20px;
    }

    .uni-course-description h3 {
        font-size: 18px;
    }

    .uni-course-description h4 {
        font-size: 16px;
    }

    .uni-course-description p {
        margin-bottom: 12.8px !important;
    }

    .uni-card-course-title {
        margin-bottom: 12px !important;
    }

    .uni-course-hero {
        aspect-ratio: auto;
        min-height: 240px;
    }

    .uni-course-hero-content {
        padding: 60px 24px 24px;
    }

    .uni-course-hero-content p {
        font-size: 14px;
        line-height: 1.4;
    }

    .uni-container {
        padding: 0 16px;
    }

    .uni-hero {
        padding: 24px 0 32px;
    }

    .uni-section {
        padding: 48px 0;
    }

    .uni-materials-grid {
        grid-template-columns: 1fr;
    }

    .uni-audience-grid {
        grid-template-columns: 1fr;
    }

    .uni-cta-block-inner h2 {
        font-size: 28px;
    }

    .uni-footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .uni-footer-bottom {
        flex-direction: column;
        align-items: center;
        gap: 16px;
        text-align: center;
    }

    .uni-footer-socials {
        justify-content: center;
    }

    .uni-search-overlay {
        padding-top: 16px;
        padding-left: 16px;
        padding-right: 16px;
    }
}

/* ========================================
   Author page (instructor)
   ======================================== */
.uni-author-fallback {
    padding: var(--uni-space-4xl) 0;
}

.uni-author-fallback h1 {
    font-size: 32px;
    font-weight: 600;
    color: var(--uni-text-primary);
}

.uni-author-hero {
    position: relative;
    max-width: 800px;
    margin: var(--uni-space-lg) auto 0;
    padding: var(--uni-space-4xl);
    background: var(--uni-bg-secondary);
    border-radius: var(--uni-radius);
    overflow: hidden;
}

.uni-author-hero--with-cover {
    padding: 120px var(--uni-space-4xl) var(--uni-space-4xl);
}

.uni-author-hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.uni-author-hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--uni-overlay-gradient);
    z-index: 0;
}

.uni-author-hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    gap: var(--uni-space-3xl);
    align-items: flex-start;
}

.uni-author-hero-avatar {
    flex-shrink: 0;
}

.uni-author-hero-avatar img,
.uni-author-hero-avatar--placeholder {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--uni-bg-card);
}

.uni-author-hero-avatar--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--uni-text-muted);
    border: 1px solid var(--uni-border);
}

.uni-author-hero-text {
    flex: 1;
    min-width: 0;
}

.uni-author-hero--with-cover .uni-author-hero-name,
.uni-author-hero--with-cover .uni-author-hero-bio,
.uni-author-hero--with-cover .uni-author-hero-location {
    color: var(--uni-text-on-accent);
}

.uni-author-hero-name {
    font-size: clamp(1.5rem, 3vw + 0.5rem, 3rem);
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: var(--uni-space-md);
    color: var(--uni-text-primary);
}

.uni-author-hero-location {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--uni-text-secondary);
    margin-bottom: var(--uni-space-lg);
}

.uni-author-hero-bio {
    font-size: 17px;
    line-height: 1.6;
    color: var(--uni-text-secondary);
    margin-bottom: var(--uni-space-lg);
}

.uni-author-hero-links {
    display: flex;
    gap: var(--uni-space-md);
    flex-wrap: wrap;
}

.uni-author-hero-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: var(--uni-space-sm) var(--uni-space-lg);
    border-radius: var(--uni-radius);
    background: var(--uni-bg-card);
    color: var(--uni-text-primary);
    font-size: 14px;
    text-decoration: none;
    border: 1px solid var(--uni-border);
    transition: color var(--uni-transition-base), border-color var(--uni-transition-base);
}

.uni-author-hero-link:hover {
    border-color: var(--uni-accent);
    color: var(--uni-accent);
}

.uni-author-section-title {
    font-size: 28px;
    font-weight: 600;
    color: var(--uni-text-primary);
    margin-bottom: var(--uni-space-2xl);
}

.uni-author-about {
    max-width: 70ch;
    margin-left: auto;
    margin-right: auto;
    padding-top: var(--uni-space-4xl);
    margin-bottom: 0;
}

.uni-author-about figure.kg-card,
.uni-author-about figure.kg-image-card {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.uni-author-about figure.kg-card img,
.uni-author-about figure.kg-image-card img {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.uni-author-courses {
    padding-top: var(--uni-space-4xl);
    padding-bottom: var(--uni-space-4xl);
}

.uni-course-instructor-link {
    display: flex;
    align-items: center;
    gap: var(--uni-space-lg);
    text-decoration: none;
    color: inherit;
    transition: color var(--uni-transition-base);
}

.uni-course-instructor-link:hover .uni-course-instructor-name {
    color: var(--uni-accent);
}

.uni-course-instructor-link:focus-visible {
    outline: 2px solid var(--uni-accent);
    outline-offset: 4px;
    border-radius: var(--uni-radius);
}

@media (max-width: 768px) {
    .uni-author-hero {
        padding: var(--uni-space-2xl);
    }
    .uni-author-hero--with-cover {
        padding: 80px var(--uni-space-2xl) var(--uni-space-2xl);
    }
    .uni-author-hero-content {
        flex-direction: column;
        gap: var(--uni-space-lg);
    }
    .uni-author-hero-avatar img,
    .uni-author-hero-avatar--placeholder {
        width: 80px;
        height: 80px;
    }
}