:root {
    --medlek-frame-bg: #031d3e;
    --medlek-frame-inner: #fff;
    --medlek-header-bg: #062b59;
    --medlek-header-text: #f7fbff;
    --medlek-header-accent: #7fc8ff;
    --medlek-hero-bg: #e9f6ff;
    --medlek-page-surface: #fff;
    --medlek-soft-surface: #f4f9fd;
    --medlek-resource-surface: #e8f4fd;
    --medlek-accent: #075eb4;
    --medlek-accent-text: #fff;
    --medlek-border: #b9d9f3;
    --medlek-footer-bg: #062b59;
    --medlek-footer-text: #f3f8fd;
    --navy-950: #031d3e;
    --navy-900: #062b59;
    --navy-800: #0a3f78;
    --blue-700: var(--medlek-accent);
    --blue-600: #1478d2;
    --blue-300: #9ecdf4;
    --blue-200: #cfe7fa;
    --blue-100: var(--medlek-resource-surface);
    --blue-50: var(--medlek-soft-surface);
    --ink: #10294b;
    --muted: #526982;
    --white: #fff;
    --border: var(--medlek-border);
    --shadow: 0 18px 55px rgba(3, 29, 62, 0.18);
    --shadow-soft: 0 8px 24px rgba(7, 65, 125, 0.09);
    --surface-hero: var(--medlek-hero-bg);
    --overlay-hero-horizontal: linear-gradient(90deg, color-mix(in srgb, var(--medlek-hero-bg) 45%, white) 0%, color-mix(in srgb, var(--medlek-hero-bg) 82%, white) 42%, color-mix(in srgb, var(--medlek-hero-bg) 35%, transparent) 66%, transparent 100%);
    --overlay-hero-vertical: linear-gradient(180deg, color-mix(in srgb, var(--medlek-hero-bg) 45%, white) 0%, color-mix(in srgb, var(--medlek-hero-bg) 82%, white) 53%, color-mix(in srgb, var(--medlek-hero-bg) 35%, transparent) 76%, transparent 100%);
    --radius-xl: 20px;
    --radius-lg: 14px;
    --radius-md: 10px;
    --canvas: 1440px;
    --content: 1240px;
    --serif: Georgia, "Times New Roman", serif;
    --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    overflow-x: hidden;
    margin: 0;
    color: var(--ink);
    background-color: var(--medlek-frame-bg);
    background-image:
        radial-gradient(circle at 8% 18%, rgba(255, 255, 255, 0.09) 0 1px, transparent 2px),
        radial-gradient(circle at 92% 70%, rgba(255, 255, 255, 0.07) 0 1px, transparent 2px);
    background-size: 40px 40px, 52px 52px;
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: var(--blue-700);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.18em;
}

a:hover {
    color: var(--navy-900);
}

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

:focus-visible {
    outline: 3px solid #f4b942;
    outline-offset: 3px;
}

.screen-reader-text {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.screen-reader-text:focus,
.skip-link:focus {
    z-index: 100000;
    top: 10px;
    left: 10px;
    width: auto;
    height: auto;
    padding: 12px 18px;
    margin: 0;
    clip: auto;
    color: var(--navy-900);
    background: var(--medlek-page-surface);
    border-radius: 6px;
}

.site-frame {
    width: min(calc(100% - 36px), var(--canvas));
    margin: 18px auto;
    padding: 2px;
    border: 1px solid var(--medlek-frame-bg);
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.site-canvas {
    overflow: hidden;
    background: var(--medlek-page-surface);
    border: 1px solid var(--medlek-frame-inner);
    border-radius: 21px;
}

.site-header {
    position: relative;
    z-index: 40;
    color: var(--medlek-header-text);
    background: var(--medlek-header-bg);
    border-bottom: 1px solid var(--medlek-header-accent);
}

.site-header__inner {
    display: grid;
    grid-template-columns: minmax(210px, 310px) minmax(0, 1fr) 44px;
    gap: 28px;
    align-items: center;
    width: min(calc(100% - 64px), var(--content));
    min-height: 92px;
    margin: 0 auto;
}

.site-branding {
    min-width: 0;
    width: 100%;
}

.site-branding,
.custom-logo-link,
.site-header__branding {
    display: inline-flex;
    align-items: center;
    max-width: 100%;
}

.custom-logo {
    display: block;
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 56px;
    object-fit: contain;
}

.primary-navigation {
    min-width: 0;
    justify-self: end;
}

.site-wordmark {
    color: var(--medlek-header-text);
    font-family: var(--serif);
    font-size: clamp(1.1rem, 2.2vw, 1.85rem);
    font-weight: 700;
    letter-spacing: 0.035em;
    line-height: 1;
    text-decoration: none;
    text-transform: uppercase;
}

.site-wordmark::after {
    content: "";
    display: inline-block;
    width: 2rem;
    height: 2rem;
    margin-left: 0.4rem;
    border: 1px solid var(--medlek-header-accent);
    border-radius: 50%;
    background: linear-gradient(90deg, transparent 48%, var(--medlek-header-accent) 49% 51%, transparent 52%);
    vertical-align: middle;
}

.site-header .site-wordmark:hover {
    color: var(--medlek-header-accent);
}

.primary-menu,
.primary-menu ul,
.footer-navigation ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.primary-menu {
    display: flex;
    gap: clamp(18px, 2vw, 34px);
    align-items: center;
}

.primary-menu > li {
    position: relative;
    display: flex;
    align-items: center;
}

.primary-menu > li > a {
    padding: 34px 0 28px;
    color: var(--medlek-header-text);
    border-bottom: 3px solid transparent;
    font-size: 0.76rem;
    font-weight: 750;
    letter-spacing: 0.035em;
    text-decoration: none;
    text-transform: uppercase;
    white-space: nowrap;
}

.primary-menu > li.current-menu-item > a,
.primary-menu > li > a:hover {
    color: var(--medlek-header-accent);
    border-bottom-color: var(--medlek-header-accent);
}

.submenu-toggle {
    width: 28px;
    height: 34px;
    padding: 0;
    color: var(--medlek-header-text);
    background: transparent;
    border: 0;
    cursor: pointer;
}

.primary-menu .sub-menu {
    position: absolute;
    top: calc(100% - 18px);
    right: 0;
    display: grid;
    width: 230px;
    padding: 10px;
    visibility: hidden;
    opacity: 0;
    background: var(--medlek-page-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    transform: translateY(8px);
    transition: 160ms ease;
}

.primary-menu li:hover > .sub-menu,
.primary-menu li:focus-within > .sub-menu,
.primary-menu .submenu-is-open > .sub-menu {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
}

.primary-menu .sub-menu a {
    display: block;
    padding: 9px 10px;
    color: var(--ink);
    border-radius: 6px;
    font-weight: 650;
    text-decoration: none;
}

.primary-menu .sub-menu a:hover {
    background: var(--blue-50);
}

.menu-toggle,
.search-toggle {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    color: var(--medlek-header-text);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 50%;
    cursor: pointer;
}

.menu-toggle {
    display: none;
}

.menu-toggle__bars {
    display: grid;
    gap: 4px;
}

.menu-toggle__bars span {
    display: block;
    width: 21px;
    height: 2px;
    background: currentColor;
}

.search-toggle {
    font-size: 1.8rem;
    line-height: 1;
}

.search-toggle:hover,
.menu-toggle:hover {
    color: var(--medlek-header-accent);
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--medlek-header-accent);
}

.header-search {
    position: relative;
}

.header-search__form {
    position: absolute;
    top: calc(100% + 18px);
    right: 0;
    width: min(360px, calc(100vw - 60px));
    padding: 14px;
    background: var(--medlek-page-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
}

.search-form {
    display: flex;
    gap: 8px;
}

.search-field {
    min-width: 0;
    flex: 1;
    padding: 10px 12px;
    color: var(--ink);
    border: 1px solid var(--blue-300);
    border-radius: 6px;
}

.search-submit {
    padding: 9px 15px;
    color: var(--medlek-accent-text);
    background: var(--medlek-accent);
    border: 0;
    border-radius: 6px;
    font-weight: 700;
    cursor: pointer;
}

.home-main {
    display: grid;
    gap: 16px;
    padding: 12px;
    background: var(--medlek-soft-surface);
}

.hero,
.home-section {
    width: 100%;
    max-width: var(--content);
    margin-inline: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.hero {
    position: relative;
    min-height: 515px;
    overflow: hidden;
}

.hero,
.subject-hero {
    background: var(--surface-hero);
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: var(--overlay-hero-horizontal);
}

.hero__media,
.hero__image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.hero__image {
    object-fit: cover;
    object-position: center;
}

.hero__content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 59%;
    min-height: 515px;
    padding: clamp(40px, 5vw, 76px);
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--blue-700);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.hero h1 {
    max-width: 700px;
    margin: 0;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: clamp(2.6rem, 5.2vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 0.98;
}

.hero__intro {
    max-width: 650px;
    margin: 24px 0 0;
    color: #304d6c;
    font-size: clamp(1rem, 1.5vw, 1.18rem);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.button {
    display: inline-flex;
    gap: 22px;
    align-items: center;
    justify-content: space-between;
    min-height: 48px;
    padding: 12px 18px;
    border: 1px solid var(--medlek-accent);
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.035em;
    text-decoration: none;
    text-transform: uppercase;
    transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button--primary {
    color: var(--medlek-accent-text);
    background: var(--medlek-accent);
    box-shadow: 0 8px 18px rgba(7, 94, 180, 0.2);
}

.button--primary:hover {
    color: var(--white);
    background: var(--navy-900);
}

.button--secondary,
.button--outline {
    color: var(--navy-900);
    background: rgba(255, 255, 255, 0.78);
}

.button--secondary:hover,
.button--outline:hover {
    color: var(--navy-900);
    background: var(--medlek-page-surface);
    box-shadow: var(--shadow-soft);
}

.hero__usps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    width: min(760px, 120%);
    padding: 0;
    margin: 34px 0 0;
    list-style: none;
}

.hero__usps li,
.about-benefits li {
    display: flex;
    gap: 10px;
    align-items: center;
}

.usp-icon,
.benefit-icon {
    display: grid;
    flex: 0 0 38px;
    width: 38px;
    height: 38px;
    place-items: center;
    color: var(--blue-700);
    border: 1px solid var(--blue-700);
    border-radius: 50%;
    font-weight: 800;
}

.hero__usps strong,
.about-benefits strong,
.hero__usps small,
.about-benefits small {
    display: block;
}

.hero__usps strong,
.about-benefits strong {
    color: var(--navy-900);
    font-size: 0.76rem;
    line-height: 1.3;
}

.hero__usps small,
.about-benefits small {
    margin-top: 2px;
    color: var(--muted);
    font-size: 0.66rem;
    line-height: 1.35;
}

.home-section {
    padding: clamp(20px, 3vw, 34px);
    background: var(--medlek-page-surface);
}

.section-heading {
    display: flex;
    gap: 20px;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 18px;
}

.section-heading h2,
.home-section > h2,
.exercises-section h2,
.about-section h2 {
    margin: 0;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: clamp(1.45rem, 2.4vw, 2rem);
    letter-spacing: -0.02em;
}

.section-heading a {
    font-size: 0.78rem;
    font-weight: 750;
    text-decoration: none;
    white-space: nowrap;
}

.subjects-grid {
    display: grid;
    grid-template-columns: repeat(60, minmax(0, 1fr));
    gap: 12px;
}

.subject-card {
    grid-column: span var(--subject-card-desktop-span, 15);
    min-width: 0;
    min-height: 270px;
    overflow: hidden;
    background: linear-gradient(145deg, #fff, var(--blue-50));
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: transform 160ms ease, box-shadow 160ms ease;
}

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

.subject-card__link {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(68px, 0.65fr);
    height: 100%;
    color: inherit;
    text-decoration: none;
}

.subject-card__content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    min-width: 0;
    padding: 18px 14px;
}

.subject-card h3 {
    margin: 0;
    color: var(--navy-900);
    font-family: var(--serif);
    overflow-wrap: anywhere;
    font-size: clamp(0.95rem, 1.1vw, 1.12rem);
    line-height: 1.18;
}

.subject-card p {
    display: -webkit-box;
    overflow: hidden;
    margin: 8px 0 18px;
    color: var(--muted);
    font-size: 0.84rem;
    line-height: 1.5;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.subject-card__cta {
    padding: 6px 10px;
    margin-top: auto;
    color: var(--blue-700);
    border: 1px solid var(--blue-300);
    border-radius: 5px;
    font-size: 0.72rem;
    font-weight: 750;
}

.subject-card__visual {
    position: relative;
    display: grid;
    min-width: 0;
    place-items: center;
    overflow: hidden;
    color: rgba(7, 94, 180, 0.22);
    background: radial-gradient(circle, rgba(20, 120, 210, 0.14), transparent 66%);
    font-family: var(--serif);
    font-size: 6rem;
    font-weight: 700;
}

.subject-card__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.exercises-section {
    display: grid;
    grid-template-columns: 1.2fr 2.2fr auto;
    gap: 26px;
    align-items: center;
}

.exercises-section__intro p {
    max-width: 420px;
    margin: 8px 0 0;
    color: var(--muted);
    font-size: 0.88rem;
}

.exercise-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(85px, 1fr));
    gap: 8px;
}

.exercise-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 13px 7px;
    color: var(--ink);
    border: 1px solid var(--border);
    border-radius: 8px;
    text-align: center;
    text-decoration: none;
}

.exercise-card:hover {
    color: var(--blue-700);
    background: var(--blue-50);
}

.exercise-card__icon {
    display: grid;
    width: 44px;
    height: 44px;
    margin-bottom: 8px;
    place-items: center;
    color: var(--blue-700);
    border: 1px solid var(--blue-300);
    border-radius: 8px;
    font-size: 1.2rem;
}

.exercise-card strong {
    font-size: 0.67rem;
    line-height: 1.25;
}

.exercise-card small {
    margin-top: 3px;
    color: var(--muted);
    font-size: 0.58rem;
    line-height: 1.25;
}

.lesson-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
}

.lesson-card {
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--medlek-page-surface);
    transition: transform 160ms ease, box-shadow 160ms ease;
}

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

.lesson-card__image {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: linear-gradient(135deg, var(--navy-900), var(--blue-700));
}

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

.lesson-card__image::after {
    position: absolute;
    z-index: 1;
    inset: 0;
    background: linear-gradient(180deg, transparent 48%, rgba(3, 29, 62, 0.5));
    content: "";
    pointer-events: none;
}

.lesson-card__placeholder {
    display: grid;
    width: 100%;
    height: 100%;
    place-items: center;
    color: rgba(255, 255, 255, 0.72);
    font-size: 3rem;
}

.lesson-card__subject,
.lesson-card__duration {
    position: absolute;
    z-index: 2;
    bottom: 8px;
    padding: 4px 7px;
    color: var(--white);
    background: rgba(3, 29, 62, 0.86);
    border-radius: 4px;
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.lesson-card__subject { left: 8px; }
.lesson-card__duration { right: 8px; }

.lesson-card__body {
    padding: 15px;
}

.lesson-card h3 {
    margin: 0;
    font-family: var(--serif);
    font-size: 1rem;
    line-height: 1.3;
}

.lesson-card h3 a {
    color: var(--navy-900);
    text-decoration: none;
}

.lesson-card p {
    margin: 8px 0 0;
    color: var(--muted);
    font-size: 0.72rem;
    line-height: 1.5;
}

.lesson-card__meta {
    display: block;
    margin-top: 10px;
    color: var(--blue-700);
    font-size: 0.66rem;
    font-weight: 750;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
    gap: 14px;
}

.resource-card {
    position: relative;
    min-height: 245px;
    overflow: hidden;
    color: var(--white);
    background: linear-gradient(135deg, var(--navy-950), var(--navy-800));
    border-radius: var(--radius-md);
}

.resource-card__image,
.resource-card__image img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.resource-card__image::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(3, 29, 62, 0.95), rgba(3, 29, 62, 0.35));
}

.resource-card__image img {
    object-fit: cover;
}

.resource-card__pattern {
    position: absolute;
    inset: 0 0 0 48%;
    display: grid;
    place-items: center;
    background:
        radial-gradient(circle at 40% 50%, rgba(20, 120, 210, 0.42), transparent 35%),
        repeating-linear-gradient(45deg, transparent 0 18px, rgba(158, 205, 244, 0.08) 19px 20px);
}

.resource-card__pattern span {
    color: rgba(158, 205, 244, 0.68);
    font-size: 6rem;
}

.resource-card__content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    width: 65%;
    min-height: 245px;
    padding: 30px;
}

.resource-card__brand {
    margin: 0 0 8px;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.resource-card h3 {
    margin: 0 0 22px;
    color: inherit;
    font-family: var(--serif);
    font-size: clamp(1.25rem, 2.2vw, 1.85rem);
    line-height: 1.2;
}

.resource-card .button--outline {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
}

.resource-card__label {
    position: absolute;
    z-index: 4;
    top: 12px;
    right: 12px;
    padding: 4px 8px;
    color: var(--navy-900);
    background: rgba(255, 255, 255, 0.92);
    border-radius: 999px;
    font-size: 0.65rem;
    font-weight: 800;
}

.resource-card__logo {
    max-width: 160px;
    max-height: 48px;
    margin-bottom: 12px;
}

.resource-card__logo img { width: auto; max-height: 48px; object-fit: contain; }
.resource-card__meta { margin: -8px 0 14px; font-size: 0.72rem; opacity: 0.86; }

.simple-callout {
    display: flex;
    gap: 30px;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(120deg, var(--blue-50), var(--white));
}

.simple-callout h2,
.simple-callout p {
    margin-top: 0;
}

.sponsor-section {
    background: #fffaf0;
    border-color: #e8d4aa;
}

.sponsor-label {
    display: inline-block;
    padding: 3px 7px;
    color: #725516;
    background: #fff1c9;
    border-radius: 4px;
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.about-section {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.8fr);
    gap: 34px;
    align-items: center;
}

.about-section__profile {
    display: grid;
    grid-template-columns: 110px minmax(0, 1fr);
    gap: 20px;
    align-items: center;
}

.about-section__portrait {
    display: grid;
    width: 110px;
    height: 110px;
    place-items: center;
    overflow: hidden;
    color: var(--white);
    background: linear-gradient(135deg, var(--blue-700), var(--navy-900));
    border: 4px solid var(--blue-100);
    border-radius: 50%;
    font-family: var(--serif);
    font-size: 2.6rem;
}

.about-section__portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-section__profile p {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 0.82rem;
}

.about-benefits {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.site-footer {
    padding: 42px clamp(28px, 5vw, 72px) 22px;
    color: var(--medlek-footer-text);
    background-color: var(--medlek-footer-bg);
    background-image: repeating-linear-gradient(45deg, transparent 0 28px, rgba(255, 255, 255, 0.035) 29px 30px);
}

.site-footer__inner {
    display: grid;
    grid-template-columns: minmax(280px, 2fr) repeat(3, minmax(130px, 0.7fr));
    gap: 34px;
    width: min(100%, var(--content));
    margin: 0 auto;
}

.site-footer__branding {
    display: inline-flex;
    align-items: center;
    width: fit-content;
}

.site-footer__branding--logo {
    max-width: min(100%, 300px);
}

.site-footer__logo {
    width: auto;
    max-width: 100%;
    max-height: 64px;
    object-fit: contain;
}

.site-wordmark--footer,
.site-footer h2,
.site-footer a {
    color: var(--medlek-footer-text);
}

.site-footer h2 {
    margin: 0 0 12px;
    font-family: var(--serif);
    font-size: 1rem;
}

.site-footer p,
.site-footer a,
.site-footer li {
    font-size: 0.72rem;
}

.site-footer__brand p {
    max-width: 480px;
    margin: 18px 0 0;
}

.site-footer__info,
.site-footer__social {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.site-footer a {
    margin-bottom: 6px;
    text-decoration-color: rgba(255, 255, 255, 0.45);
}

.site-footer__copyright {
    width: min(100%, var(--content));
    padding-top: 20px;
    margin: 28px auto 0;
    border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.content-shell {
    width: min(calc(100% - 48px), 1100px);
    min-height: 55vh;
    margin: 0 auto;
    padding: 70px 0;
}

.generic-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.generic-card {
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.generic-card h2 {
    font-family: var(--serif);
}

/* Subject archive */
.subject-main {
    background: var(--medlek-page-surface);
}

.subject-hero {
    position: relative;
    min-height: 430px;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.subject-hero::after {
    position: absolute;
    z-index: 1;
    inset: 0;
    background: var(--overlay-hero-horizontal);
    content: "";
    pointer-events: none;
}

.subject-hero__media,
.subject-hero__image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.subject-hero__image {
    object-fit: cover;
    object-position: center;
}

.subject-hero__content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: min(calc(100% - 72px), var(--content));
    min-height: 430px;
    padding: 36px 0 42px;
    margin: 0 auto;
}

.breadcrumbs ol {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    padding: 0;
    margin: 0 0 22px;
    list-style: none;
}

.breadcrumbs li {
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 700;
}

.breadcrumbs li:not(:last-child)::after {
    margin-left: 8px;
    color: var(--blue-600);
    content: "›";
}

.breadcrumbs a {
    color: var(--blue-700);
    text-decoration: none;
}

.subject-hero h1 {
    max-width: 620px;
    margin: 0;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: clamp(3.3rem, 6vw, 5.5rem);
    font-weight: 700;
    letter-spacing: -0.045em;
    line-height: 0.98;
}

.subject-hero__intro {
    max-width: 590px;
    margin-top: 22px;
    color: #314f70;
    font-size: 1rem;
    line-height: 1.75;
}

.subject-hero__intro p {
    margin: 0;
}

.subject-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 28px;
}

.subject-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(260px, 310px);
    gap: clamp(24px, 3vw, 38px);
    width: min(calc(100% - 72px), var(--content));
    padding: 44px 0 56px;
    margin: 0 auto;
}

.subject-layout--wide { grid-template-columns: minmax(0, 1fr); }

.subject-content {
    min-width: 0;
}

.subject-section {
    scroll-margin-top: 110px;
}

.subject-section + .subject-section {
    padding-top: 44px;
    margin-top: 48px;
    border-top: 1px solid #dcebf7;
}

.section-heading--subject {
    margin-bottom: 22px;
}

.section-heading--subject h2 {
    font-size: clamp(1.7rem, 2.4vw, 2.35rem);
}

.subject-section__count {
    padding: 6px 10px;
    color: var(--blue-700);
    background: var(--blue-50);
    border: 1px solid var(--blue-200);
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 800;
}

.subject-lessons-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.subject-lesson-card {
    min-width: 0;
    overflow: hidden;
    background: var(--medlek-page-surface);
    border: 1px solid #cde2f3;
    border-radius: var(--radius-md);
    box-shadow: 0 7px 20px rgba(7, 65, 125, 0.055);
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.subject-lesson-card:hover {
    border-color: var(--blue-300);
    box-shadow: var(--shadow-soft);
    transform: translateY(-2px);
}

.subject-lesson-card > a {
    display: grid;
    grid-template-columns: 124px minmax(0, 1fr) 28px;
    gap: 16px;
    align-items: center;
    min-height: 142px;
    padding: 12px;
    color: inherit;
    text-decoration: none;
}

.subject-lesson-card__media {
    display: block;
    width: 124px;
    aspect-ratio: 1;
    overflow: hidden;
    background: radial-gradient(circle, var(--blue-100), #fff 70%);
    border-radius: 8px;
}

.subject-lesson-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.subject-lesson-card__placeholder {
    display: grid;
    width: 100%;
    height: 100%;
    place-items: center;
    color: rgba(7, 94, 180, 0.45);
    font-size: 2.6rem;
}

.subject-lesson-card__content {
    display: block;
    min-width: 0;
}

.subject-lesson-card__content strong {
    display: block;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: 1.06rem;
    line-height: 1.3;
}

.subject-lesson-card__content > span {
    display: block;
    margin-top: 8px;
    color: var(--muted);
    font-size: 0.75rem;
    line-height: 1.55;
}

.subject-lesson-card__arrow {
    color: var(--blue-700);
    font-size: 1.1rem;
}

.subject-empty {
    padding: 24px;
    color: var(--muted);
    background: var(--blue-50);
    border: 1px dashed var(--blue-300);
    border-radius: var(--radius-md);
}

.subject-popular-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.subject-popular-card {
    min-width: 0;
    overflow: hidden;
    background: var(--medlek-page-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
}

.subject-popular-card > a {
    display: grid;
    grid-template-columns: 142px minmax(0, 1fr);
    min-height: 128px;
    color: inherit;
    text-decoration: none;
}

.subject-popular-card__media {
    position: relative;
    display: block;
    min-height: 128px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--navy-900), var(--blue-600));
}

.subject-popular-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.subject-popular-card__placeholder {
    display: grid;
    width: 100%;
    height: 100%;
    min-height: 128px;
    place-items: center;
    color: rgba(255, 255, 255, 0.72);
    font-size: 2.2rem;
}

.subject-popular-card__play {
    position: absolute;
    top: 50%;
    left: 50%;
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    color: var(--white);
    background: rgba(3, 29, 62, 0.72);
    border: 2px solid rgba(255, 255, 255, 0.88);
    border-radius: 50%;
    font-size: 0.8rem;
    transform: translate(-50%, -50%);
}

.subject-popular-card__content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 18px;
}

.subject-popular-card__content strong {
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: 1rem;
    line-height: 1.3;
}

.subject-popular-card__content span {
    margin-top: 8px;
    color: var(--muted);
    font-size: 0.7rem;
    line-height: 1.5;
}

.subject-sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-width: 0;
}

.sidebar-module,
.subject-sidebar .resource-card--compact {
    overflow: hidden;
    background: var(--medlek-page-surface);
    border: 1px solid #cde2f3;
    border-radius: var(--radius-md);
    box-shadow: 0 7px 20px rgba(7, 65, 125, 0.05);
}

.sidebar-module {
    padding: 20px;
}

.sidebar-module h2 {
    margin: 0 0 14px;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: 1.15rem;
}

.sidebar-module ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.sidebar-quicknav li + li {
    border-top: 1px solid #e6f0f7;
}

.sidebar-quicknav a {
    display: flex;
    gap: 10px;
    justify-content: space-between;
    padding: 9px 0;
    color: var(--blue-700);
    font-size: 0.72rem;
    text-decoration: none;
}

.sidebar-related li + li {
    margin-top: 9px;
}

.sidebar-related a {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    color: var(--ink);
    font-size: 0.76rem;
    font-weight: 700;
    text-decoration: none;
}

.sidebar-related__icon {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    color: var(--blue-700);
    background: var(--blue-50);
    border: 1px solid var(--blue-200);
    border-radius: 7px;
}

.subject-sidebar .resource-card--compact {
    min-height: 0;
    color: var(--ink);
    background: var(--medlek-page-surface);
}

.subject-sidebar .resource-card--compact .resource-card__image,
.subject-sidebar .resource-card--compact .resource-card__pattern {
    position: relative;
    inset: auto;
    width: 100%;
    height: 152px;
}

.subject-sidebar .resource-card--compact .resource-card__image::after {
    background: linear-gradient(180deg, transparent 58%, rgba(3, 29, 62, 0.36));
}

.subject-sidebar .resource-card--compact .resource-card__pattern {
    background: linear-gradient(135deg, var(--navy-950), var(--blue-700));
}

.subject-sidebar .resource-card--compact .resource-card__content {
    width: 100%;
    min-height: 0;
    padding: 20px;
}

.subject-sidebar .resource-card--compact .resource-card__brand {
    margin: 0 0 10px;
    color: var(--blue-700);
    font-family: var(--serif);
    font-size: 1.15rem;
    letter-spacing: 0;
    text-transform: none;
}

.subject-sidebar .resource-card--compact .resource-card__description {
    margin: 0 0 16px;
    color: var(--ink);
    font-size: 0.82rem;
    font-weight: 500;
    line-height: 1.55;
}

.subject-sidebar .resource-card--compact .button {
    width: 100%;
    color: var(--white);
    background: var(--blue-700);
    border-color: var(--blue-700);
}

/* Lesson page */
.lesson-main { background: var(--medlek-page-surface); }

.lesson-hero {
    position: relative;
    min-height: 410px;
    overflow: hidden;
    background: var(--surface-hero);
    border-bottom: 1px solid var(--border);
}

.lesson-hero::after {
    position: absolute;
    z-index: 1;
    inset: 0;
    background: var(--overlay-hero-horizontal);
    content: "";
    pointer-events: none;
}

.lesson-hero__media,
.lesson-hero__image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.lesson-hero__image { object-fit: cover; object-position: center; }

.lesson-hero__content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: min(calc(100% - 72px), var(--content));
    min-height: 410px;
    padding: 30px 0 38px;
    margin: 0 auto;
}

.lesson-hero__subject {
    width: fit-content;
    padding: 4px 11px;
    color: var(--blue-700);
    border: 1px solid var(--blue-300);
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-decoration: none;
    text-transform: uppercase;
}

.lesson-hero h1 {
    max-width: 680px;
    margin: 15px 0 0;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: clamp(3rem, 5.5vw, 5rem);
    font-weight: 700;
    letter-spacing: -0.045em;
    line-height: 1;
}

.lesson-hero__intro {
    max-width: 610px;
    margin: 20px 0 0;
    color: #314f70;
    font-size: 1rem;
    line-height: 1.75;
}

.lesson-hero__dates {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 0.75rem;
}

.lesson-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(250px, 292px);
    gap: clamp(25px, 3vw, 38px);
    width: min(calc(100% - 72px), var(--content));
    padding: 42px 0 28px;
    margin: 0 auto;
}

.lesson-layout--wide { grid-template-columns: minmax(0, 1fr); }
.lesson-content { min-width: 0; }

.lesson-section-heading {
    display: flex;
    gap: 12px;
    align-items: center;
}

.lesson-section-heading h2 {
    margin: 0;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: clamp(1.65rem, 2.6vw, 2.15rem);
    line-height: 1.15;
}

.lesson-section-heading p { margin: 4px 0 0; color: var(--muted); }

.lesson-section-icon {
    display: grid;
    flex: 0 0 34px;
    width: 34px;
    height: 34px;
    place-items: center;
    color: var(--blue-700);
    background: var(--blue-50);
    border: 1px solid var(--blue-200);
    border-radius: 50%;
    font-weight: 800;
}

.lesson-objectives {
    padding: clamp(22px, 3vw, 30px);
    border: 1px solid var(--blue-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    scroll-margin-top: 110px;
}

.lesson-objectives__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 13px 24px;
    padding: 0;
    margin: 23px 0 0;
    list-style: none;
}

.lesson-objectives__list li {
    display: grid;
    grid-template-columns: 21px minmax(0, 1fr);
    gap: 9px;
    align-items: start;
    color: var(--ink);
    font-size: 0.88rem;
}

.lesson-objectives__list li > span {
    display: grid;
    width: 19px;
    height: 19px;
    margin-top: 2px;
    place-items: center;
    color: var(--white);
    background: var(--blue-700);
    border-radius: 50%;
    font-size: 0.68rem;
}

.lesson-objectives__toggle {
    display: flex;
    gap: 7px;
    align-items: center;
    padding: 7px 0 0;
    margin: 17px 0 0 auto;
    color: var(--blue-700);
    background: transparent;
    border: 0;
    font-weight: 800;
    cursor: pointer;
}

.lesson-objectives__toggle[aria-expanded="true"] span:last-child { transform: rotate(180deg); }

.lesson-level-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    padding: 22px 0 0;
}

.lesson-level-filter > span { margin-right: 3px; color: var(--muted); font-size: 0.85rem; font-weight: 700; }

.lesson-level-filter button {
    min-height: 40px;
    padding: 8px 15px;
    color: var(--navy-900);
    background: var(--medlek-page-surface);
    border: 1px solid var(--blue-200);
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 800;
    cursor: pointer;
}

.lesson-level-filter button[aria-pressed="true"] { color: var(--white); background: var(--blue-700); border-color: var(--blue-700); }

.lesson-film-section { padding-top: 38px; scroll-margin-top: 110px; }
.lesson-section-heading--films { padding-bottom: 18px; border-bottom: 1px solid #deebf5; }

.lesson-film-count {
    padding: 4px 10px;
    margin-left: auto;
    color: var(--blue-700);
    background: var(--blue-50);
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 800;
}

.lesson-film-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(235px, 1fr));
    gap: 18px;
    padding-top: 20px;
}

.lesson-film-card {
    min-width: 0;
    overflow: hidden;
    background: var(--medlek-page-surface);
    border: 1px solid #cfe0ee;
    border-radius: var(--radius-md);
    box-shadow: 0 7px 18px rgba(3, 29, 62, 0.07);
}

.lesson-video__frame {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: linear-gradient(135deg, var(--navy-950), var(--blue-700));
}

.lesson-video__frame iframe,
.lesson-video__play,
.lesson-video__thumbnail,
.lesson-video__fallback { width: 100%; height: 100%; }
.lesson-video__frame iframe { display: block; border: 0; }

.lesson-video__play {
    position: relative;
    display: block;
    padding: 0;
    overflow: hidden;
    background: transparent;
    border: 0;
    cursor: pointer;
}

.lesson-video__thumbnail { object-fit: cover; transition: transform 180ms ease, filter 180ms ease; }
.lesson-video__play:hover .lesson-video__thumbnail { filter: brightness(0.82); transform: scale(1.02); }

.lesson-video__play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    display: grid;
    width: 54px;
    height: 54px;
    place-items: center;
    color: var(--white);
    background: rgba(3, 29, 62, 0.78);
    border: 2px solid var(--white);
    border-radius: 50%;
    box-shadow: 0 8px 20px rgba(3, 29, 62, 0.3);
    transform: translate(-50%, -50%);
}

.lesson-video__duration {
    position: absolute;
    right: 8px;
    bottom: 8px;
    padding: 2px 6px;
    color: var(--white);
    background: rgba(3, 29, 62, 0.88);
    border-radius: 4px;
    font-size: 0.68rem;
    font-weight: 800;
}

.lesson-video__fallback { display: grid; place-items: center; color: rgba(255, 255, 255, 0.8); font-size: 2rem; }
.lesson-film-card__body { padding: 16px; }

.lesson-film-card h3 {
    margin: 0;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: 1.08rem;
    line-height: 1.3;
}

.lesson-film-card__body > p { margin: 9px 0 0; color: var(--muted); font-size: 0.8rem; line-height: 1.55; }

.lesson-film-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    padding: 13px 0 0;
    margin: 13px 0 0;
    border-top: 1px solid #e4eef6;
    list-style: none;
}

.lesson-film-card__actions a {
    display: inline-flex;
    min-height: 34px;
    align-items: center;
    padding: 6px 9px;
    color: var(--blue-700);
    background: var(--blue-50);
    border-radius: 6px;
    font-size: 0.68rem;
    font-weight: 800;
    line-height: 1.25;
    text-decoration: none;
}

.lesson-sidebar { align-self: start; padding-top: 0; }

.lesson-resources {
    width: min(calc(100% - 72px), var(--content));
    padding: clamp(25px, 3vw, 34px);
    margin: 22px auto 0;
    background: var(--medlek-resource-surface);
    border: 1px solid var(--blue-200);
    border-radius: var(--radius-lg);
    scroll-margin-top: 110px;
}

.lesson-resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 14px;
    margin-top: 22px;
}

.lesson-resource-group {
    min-width: 0;
    padding: 18px;
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid var(--blue-200);
    border-radius: var(--radius-md);
}

.lesson-resource-group__icon {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    color: var(--blue-700);
    background: var(--medlek-page-surface);
    border: 1px solid var(--blue-200);
    border-radius: 9px;
    font-size: 1.1rem;
}

.lesson-resource-group h3 { margin: 12px 0 0; color: var(--navy-900); font-family: var(--serif); font-size: 1.1rem; }
.lesson-resource-group > p { margin: 6px 0 0; color: var(--muted); font-size: 0.75rem; }
.lesson-resource-group ul { display: grid; gap: 7px; padding: 0; margin: 13px 0 0; list-style: none; }

.lesson-resource-group a,
.lesson-resource-group summary {
    display: flex;
    gap: 10px;
    justify-content: space-between;
    align-items: center;
    min-height: 42px;
    padding: 8px 10px;
    color: var(--ink);
    background: var(--medlek-page-surface);
    border: 1px solid #dceaf5;
    border-radius: 7px;
    font-size: 0.76rem;
    font-weight: 700;
    text-decoration: none;
}

.lesson-resource-group summary { cursor: pointer; }
.lesson-resource-group small { flex: 0 0 auto; color: var(--blue-700); font-size: 0.65rem; font-weight: 800; }
.lesson-resource-group__content { padding: 12px 8px 3px; color: var(--ink); font-size: 0.8rem; }

.lesson-callout {
    display: flex;
    gap: 25px;
    justify-content: space-between;
    align-items: center;
    width: min(calc(100% - 72px), var(--content));
    padding: 25px clamp(24px, 4vw, 44px);
    margin: 28px auto 46px;
    color: var(--white);
    background: linear-gradient(110deg, var(--navy-800), var(--blue-700));
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: var(--radius-lg);
}

.lesson-callout h2 { margin: 0; color: var(--white); font-family: var(--serif); font-size: 1.55rem; }
.lesson-callout p { margin: 5px 0 0; color: rgba(255, 255, 255, 0.82); font-size: 0.85rem; }
.lesson-callout__actions { display: flex; flex: 0 0 auto; gap: 9px; }
.lesson-callout .button--light { color: var(--navy-900); background: var(--medlek-page-surface); border-color: var(--white); }
.lesson-callout .button--secondary { color: var(--white); background: transparent; border-color: rgba(255, 255, 255, 0.72); }

.lesson-empty-state {
    padding: 30px;
    margin: 0;
    color: var(--muted);
    text-align: center;
    background: var(--blue-50);
    border: 1px dashed var(--blue-300);
    border-radius: var(--radius-md);
}

@media (max-width: 1040px) {
    .subject-layout {
        grid-template-columns: 1fr;
    }

    .subject-sidebar {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .lesson-sidebar {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 1180px) {
    .subject-card {
        grid-column: span var(--subject-card-tablet-span, 20);
    }

    .subject-card h3 {
        font-size: 1.15rem;
    }

    .site-header__inner {
        grid-template-columns: minmax(180px, 240px) minmax(0, 1fr) 42px;
        gap: 18px;
        width: calc(100% - 42px);
    }

    .custom-logo {
        max-height: 48px;
    }

    .primary-menu {
        gap: 17px;
    }

    .primary-menu > li > a {
        font-size: 0.69rem;
    }

    .hero__content {
        width: 64%;
    }

    .exercises-section {
        grid-template-columns: 1fr;
    }

    .exercise-grid {
        order: 2;
    }

    .exercises-section > .button {
        width: fit-content;
        order: 3;
    }
}

@media (max-width: 900px) {
    .site-frame {
        width: min(calc(100% - 20px), var(--canvas));
        margin: 10px auto;
        border-radius: 18px;
    }

    .site-canvas {
        border-width: 1px;
        border-radius: 15px;
    }

    .site-header__inner {
        grid-template-columns: minmax(0, 1fr) 44px 44px;
        min-height: 76px;
    }

    .custom-logo {
        max-height: 42px;
    }

    .menu-toggle {
        display: grid;
    }

    .primary-navigation {
        position: absolute;
        top: 100%;
        right: 20px;
        left: 20px;
        display: none;
        max-height: calc(100vh - 120px);
        padding: 12px;
        overflow-y: auto;
        color: var(--medlek-header-text);
        background: var(--medlek-header-bg);
        border: 1px solid var(--medlek-header-accent);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow);
    }

    .primary-navigation.is-open {
        display: block;
    }

    .primary-menu {
        display: grid;
        gap: 0;
    }

    .primary-menu > li {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 46px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }

    .primary-menu > li > a {
        padding: 14px 10px;
        border: 0;
        font-size: 0.8rem;
    }

    .primary-menu .sub-menu {
        position: static;
        grid-column: 1 / -1;
        display: none;
        width: 100%;
        padding: 0 8px 10px 20px;
        visibility: visible;
        opacity: 1;
        border: 0;
        box-shadow: none;
        transform: none;
        background: transparent;
    }

    .primary-menu .sub-menu a {
        color: var(--medlek-header-text);
    }

    .primary-menu .sub-menu a:hover {
        color: var(--medlek-header-accent);
        background: rgba(255, 255, 255, 0.1);
    }

    .primary-menu .submenu-is-open > .sub-menu {
        display: grid;
    }

    .hero {
        min-height: 610px;
    }

    .hero::after,
    .subject-hero::after,
    .lesson-hero::after {
        background: var(--overlay-hero-vertical);
    }

    .hero__image {
        object-position: 66% center;
    }

    .hero__content {
        justify-content: flex-start;
        width: 100%;
        min-height: 610px;
        padding: 48px 38px 34px;
    }

    .hero h1 {
        max-width: 630px;
        font-size: clamp(2.5rem, 8vw, 4.3rem);
    }

    .hero__intro {
        max-width: 540px;
    }

    .hero__usps {
        width: 100%;
        margin-top: auto;
        padding-top: 120px;
    }

    .hero__usps li {
        padding: 8px;
        background: rgba(245, 250, 255, 0.82);
        border-radius: 8px;
        backdrop-filter: blur(3px);
    }

    .lesson-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .about-section {
        grid-template-columns: 1fr;
    }

    .site-footer__inner {
        grid-template-columns: 1.6fr 1fr 1fr;
    }

    .site-footer__social {
        grid-column: 2 / -1;
    }

    .subject-hero,
    .subject-hero__content {
        min-height: 470px;
    }

    .subject-hero__content,
    .subject-layout {
        width: calc(100% - 48px);
    }

    .lesson-hero,
    .lesson-hero__content { min-height: 460px; }

    .lesson-hero__content,
    .lesson-layout,
    .lesson-resources,
    .lesson-callout { width: calc(100% - 48px); }

    .lesson-hero__image { object-position: 68% center; }

}

@media (max-width: 620px) {
    body {
        background: var(--medlek-frame-bg);
    }

    .site-frame {
        width: 100%;
        padding: 0;
        margin: 0;
        border: 0;
        border-radius: 0;
    }

    .site-canvas {
        border: 0;
        border-radius: 0;
    }

    .site-header__inner {
        width: calc(100% - 28px);
        grid-template-columns: minmax(0, 1fr) 40px 40px;
        gap: 4px;
    }

    .site-wordmark {
        overflow: hidden;
        font-size: 1rem;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .site-wordmark::after {
        display: none;
    }

    .custom-logo {
        max-height: 36px;
    }

    .home-main {
        gap: 10px;
        padding: 8px;
    }

    .hero,
    .home-section {
        border-radius: 10px;
    }

    .hero {
        min-height: 660px;
    }

    .hero__image {
        object-position: 62% bottom;
    }

    .hero__content {
        min-height: 660px;
        padding: 34px 22px 24px;
    }

    .hero h1 {
        font-size: clamp(2.35rem, 12vw, 3.35rem);
    }

    .hero__intro {
        margin-top: 16px;
        font-size: 0.95rem;
    }

    .hero__actions {
        align-items: stretch;
        flex-direction: column;
        margin-top: 20px;
    }

    .hero__actions .button {
        width: 100%;
    }

    .hero__usps {
        grid-template-columns: 1fr;
        gap: 8px;
        padding-top: 104px;
    }

    .home-section {
        padding: 20px 16px;
    }

    .section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
    }

    .subjects-grid,
    .lesson-grid,
    .resources-grid,
    .about-benefits,
    .generic-grid {
        grid-template-columns: 1fr;
    }

    .subject-card {
        grid-column: 1 / -1;
        min-height: 175px;
    }

    .subject-card h3 {
        font-size: 1.1rem;
    }

    .subject-card__link {
        grid-template-columns: minmax(0, 1.2fr) minmax(100px, 0.8fr);
    }

    .exercise-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .exercise-card:last-child {
        grid-column: 1 / -1;
    }

    .resource-card__content {
        width: 78%;
        padding: 24px;
    }

    .about-section__profile {
        grid-template-columns: 78px minmax(0, 1fr);
        align-items: flex-start;
    }

    .about-section__portrait {
        width: 78px;
        height: 78px;
    }

    .simple-callout {
        align-items: flex-start;
        flex-direction: column;
    }

    .site-footer {
        padding: 34px 24px 18px;
    }

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

    .site-footer__brand {
        grid-column: 1 / -1;
    }

    .site-footer__social {
        grid-column: auto;
    }

    .subject-hero {
        min-height: 0;
    }

    .subject-hero__image {
        object-position: 70% center;
    }

    .subject-hero__content {
        justify-content: center;
        width: calc(100% - 32px);
        min-height: clamp(330px, 95vw, 380px);
        padding: 24px 0;
    }

    .breadcrumbs ol {
        margin-bottom: 18px;
    }

    .subject-hero h1 {
        font-size: clamp(2.15rem, 11vw, 3.25rem);
    }

    .subject-hero__intro {
        margin-top: 14px;
        font-size: 0.85rem;
        line-height: 1.55;
    }

    .subject-hero__actions {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
        margin-top: 18px;
    }

    .subject-hero__actions .button {
        width: auto;
        min-width: 0;
        padding-inline: 12px;
    }

    .subject-layout {
        width: calc(100% - 28px);
        padding: 28px 0 40px;
    }

    .section-heading--subject {
        align-items: flex-start;
        flex-direction: column;
    }

    .subject-lessons-grid,
    .subject-popular-grid,
    .subject-sidebar {
        grid-template-columns: 1fr;
    }

    .subject-lesson-card > a {
        grid-template-columns: 94px minmax(0, 1fr) 24px;
        gap: 12px;
        min-height: 116px;
        padding: 10px;
    }

    .subject-lesson-card__media {
        width: 94px;
    }

    .subject-lesson-card__content strong {
        font-size: 0.96rem;
    }

    .subject-lesson-card__content > span {
        font-size: 0.69rem;
    }

    .subject-popular-card > a {
        grid-template-columns: 120px minmax(0, 1fr);
    }

    .lesson-hero,
    .lesson-hero__content { min-height: 580px; }

    .lesson-hero__image { object-position: 70% bottom; }

    .lesson-hero__content {
        justify-content: flex-start;
        width: calc(100% - 32px);
        padding: 26px 0 24px;
    }

    .lesson-hero h1 {
        max-width: 100%;
        font-size: clamp(2.25rem, 11vw, 3rem);
        overflow-wrap: anywhere;
    }
    .lesson-hero__intro { margin-top: 16px; font-size: 0.9rem; line-height: 1.65; }

    .lesson-layout,
    .lesson-resources,
    .lesson-callout { width: calc(100% - 28px); }

    .lesson-layout { padding-top: 28px; }

    .lesson-objectives__list,
    .lesson-film-grid,
    .lesson-resource-grid,
    .lesson-sidebar { grid-template-columns: 1fr; }

    .lesson-objectives { padding: 20px 17px; }
    .lesson-level-filter { align-items: stretch; }
    .lesson-level-filter > span { width: 100%; }
    .lesson-level-filter button { flex: 1 1 100px; }
    .lesson-film-section { padding-top: 31px; }
    .lesson-section-heading--films { flex-wrap: wrap; }
    .lesson-film-count { margin-left: 46px; }
    .lesson-film-card__actions a { min-height: 40px; }
    .lesson-resources { padding: 22px 16px; }

    .lesson-callout {
        align-items: stretch;
        flex-direction: column;
        margin-bottom: 28px;
    }

    .lesson-callout__actions { align-items: stretch; flex-direction: column; }
    .lesson-callout__actions .button { width: 100%; }

    .subject-section + .subject-section {
        padding-top: 34px;
        margin-top: 38px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}

/* Resource collections and individual resources */
.resource-page { min-height: 60vh; background: var(--medlek-page-surface); }

.resource-hero {
    padding: clamp(34px, 5vw, 64px) 0;
    background: var(--surface-hero);
    border-bottom: 1px solid var(--border);
}

.resource-hero__inner,
.resource-page-layout {
    width: min(calc(100% - 72px), var(--content));
    margin: 0 auto;
}

.resource-hero .breadcrumbs ol { margin-bottom: 22px; }
.resource-hero h1 {
    max-width: 860px;
    margin: 8px 0 0;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: clamp(2.45rem, 5vw, 4.5rem);
    line-height: 1.04;
}
.resource-hero__level {
    display: inline-flex;
    padding: 4px 11px;
    color: var(--blue-700);
    background: rgba(255, 255, 255, 0.76);
    border: 1px solid var(--blue-300);
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
}
.resource-hero__lesson { margin: 12px 0 0; color: var(--blue-700); font-weight: 800; }
.resource-hero__intro { max-width: 720px; margin: 12px 0 0; color: var(--muted); }

.resource-page-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 285px;
    gap: 34px;
    padding: 38px 0 54px;
}
.resource-page-layout--wide { grid-template-columns: minmax(0, 1fr); }
.resource-page-content { min-width: 0; }
.resource-sidebar { align-self: start; }

.resource-type-navigation {
    display: flex;
    gap: 7px;
    padding-bottom: 18px;
    overflow-x: auto;
    scrollbar-width: thin;
}
.resource-type-navigation a {
    flex: 0 0 auto;
    padding: 8px 13px;
    color: var(--blue-700);
    background: var(--blue-50);
    border: 1px solid var(--blue-200);
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 800;
    text-decoration: none;
}
.resource-type-navigation a[aria-current="page"] { color: var(--white); background: var(--blue-700); border-color: var(--blue-700); }

.resource-level-section { padding-top: 33px; scroll-margin-top: 105px; }
.resource-section-heading { display: flex; gap: 10px; align-items: center; padding-bottom: 15px; border-bottom: 1px solid #deebf5; }
.resource-section-heading > span { color: var(--blue-700); font-size: 1.2rem; }
.resource-section-heading h2 { margin: 0; color: var(--navy-900); font-family: var(--serif); font-size: 1.55rem; }
.resource-section-heading small { padding: 3px 9px; margin-left: auto; color: var(--blue-700); background: var(--blue-50); border-radius: 999px; font-weight: 800; }
.resource-level-section--ungrouped { padding-top: 18px; }

.resource-collection-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px; padding-top: 18px; }
.resource-collection-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    overflow: hidden;
    background: var(--medlek-page-surface);
    border: 1px solid #cfe0ee;
    border-radius: var(--radius-md);
    box-shadow: 0 7px 18px rgba(3, 29, 62, 0.06);
}
.resource-collection-card__image { aspect-ratio: 16 / 9; overflow: hidden; background: var(--blue-50); }
.resource-collection-card__image img { width: 100%; height: 100%; object-fit: cover; }
.resource-collection-card__symbol { display: grid; min-height: 92px; place-items: center; color: var(--blue-700); background: linear-gradient(135deg, var(--blue-50), #dcefff); font-size: 1.8rem; }
.resource-collection-card__body { display: flex; min-height: 190px; flex: 1; flex-direction: column; padding: 17px; }
.resource-collection-card__meta { margin: 0 0 6px !important; color: var(--blue-700) !important; font-size: 0.66rem !important; font-weight: 800; text-transform: uppercase; }
.resource-collection-card h3 { margin: 0; color: var(--navy-900); font-family: var(--serif); font-size: 1.05rem; line-height: 1.3; }
.resource-collection-card__body > p { margin: 8px 0 0; color: var(--muted); font-size: 0.76rem; line-height: 1.5; }
.resource-collection-card__link { display: flex; gap: 8px; justify-content: space-between; align-items: center; padding-top: 14px; margin-top: auto; color: var(--blue-700); font-size: 0.75rem; font-weight: 800; text-decoration: none; }
.resource-card-unavailable { margin-top: auto !important; color: var(--muted) !important; font-style: italic; }

.resource-accordion-toolbar { display: flex; justify-content: flex-end; gap: 8px; padding-top: 14px; }
.resource-accordion-toolbar button,
.resource-accordion-toggle {
    color: var(--blue-700);
    background: var(--blue-50);
    border: 1px solid var(--blue-200);
    border-radius: 7px;
    font-size: 0.75rem;
    font-weight: 800;
    cursor: pointer;
}
.resource-accordion-toolbar button { padding: 7px 11px; }
.resource-accordion-list { display: grid; gap: 13px; padding-top: 13px; }
.resource-assignment-card { padding: 21px; background: var(--medlek-page-surface); border: 1px solid #cfe0ee; border-radius: var(--radius-md); box-shadow: 0 5px 15px rgba(3, 29, 62, 0.045); }
.resource-item-number { margin: 0 0 4px; color: var(--blue-700); font-size: 0.68rem; font-weight: 800; text-transform: uppercase; }
.resource-assignment-card h3,
.resource-concept h3 { margin: 0; color: var(--navy-900); font-family: var(--serif); font-size: 1.12rem; }
.resource-rich-text { color: var(--ink); font-size: 0.86rem; }
.resource-rich-text > :first-child { margin-top: 8px; }
.resource-rich-text > :last-child { margin-bottom: 0; }
.resource-download { display: inline-flex; margin-top: 13px; font-size: 0.75rem; font-weight: 800; }
.resource-accordion-toggle { display: flex; width: 100%; justify-content: space-between; padding: 10px 12px; margin-top: 16px; text-align: left; }
.resource-accordion-toggle[aria-expanded="true"] span:last-child { transform: rotate(180deg); }
.resource-accordion-panel { padding: 14px; margin-top: 8px; background: var(--blue-50); border-left: 3px solid var(--blue-600); border-radius: 5px; }
.resource-accordion-panel h4 { margin: 0 0 6px; color: var(--navy-900); }

.resource-concept-tools { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; padding-top: 16px; }
.resource-concept-tools > label { width: 100%; color: var(--navy-900); font-size: 0.78rem; font-weight: 800; }
.resource-concept-tools input { min-width: min(100%, 330px); min-height: 42px; padding: 8px 12px; border: 1px solid var(--blue-300); border-radius: 7px; }
.resource-concept-tools .resource-accordion-toolbar { padding: 0; margin-left: auto; }
.resource-concept-list { display: grid; gap: 10px; padding-top: 14px; }
.resource-concept { display: grid; grid-template-columns: minmax(0, 1fr) 160px; gap: 10px 18px; align-items: center; padding: 16px 18px; border: 1px solid #cfe0ee; border-radius: var(--radius-md); }
.resource-concept .resource-accordion-toggle { margin: 0; }
.resource-concept .resource-accordion-panel { grid-column: 1 / -1; }
.resource-empty-search { padding: 20px; color: var(--muted); text-align: center; background: var(--blue-50); border-radius: var(--radius-md); }

.resource-plugin-surface { min-height: 260px; padding: clamp(22px, 4vw, 40px); margin-top: 18px; overflow-wrap: anywhere; background: var(--medlek-page-surface); border: 1px solid #cfe0ee; border-radius: var(--radius-lg); box-shadow: var(--shadow-soft); }
.resource-plugin-surface > :first-child { margin-top: 0; }
.resource-plugin-surface > :last-child { margin-bottom: 0; }

.subject-quicknav h2 { margin: 0 0 12px; color: var(--navy-900); font-family: var(--serif); font-size: 1.15rem; }
.subject-quicknav ul { padding: 0; margin: 0; list-style: none; }
.subject-quicknav li + li { border-top: 1px solid #e6f0f7; }
.subject-quicknav a { display: flex; justify-content: space-between; gap: 8px; padding: 8px 0; font-size: 0.72rem; font-weight: 700; text-decoration: none; }

.lesson-resource-group__collection-link { margin-top: 14px; }

/* Subject-wide resource catalog */
.subject-resource-hero { padding-block: clamp(30px, 4vw, 48px); }
.subject-resource-hero h1 { font-size: clamp(2.35rem, 4.5vw, 4rem); }

.subject-resource-catalog__heading {
    display: flex;
    gap: 20px;
    justify-content: space-between;
    align-items: end;
    padding-bottom: 20px;
    border-bottom: 1px solid #deebf5;
}
.subject-resource-catalog__eyebrow {
    margin: 0 0 4px;
    color: var(--blue-700);
    font-size: 0.7rem;
    font-weight: 850;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}
.subject-resource-catalog__heading h2 {
    margin: 0;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: clamp(1.75rem, 3vw, 2.35rem);
    line-height: 1.1;
}
.subject-resource-catalog__heading > p {
    flex: 0 0 auto;
    margin: 0;
    color: var(--muted);
    font-size: 0.76rem;
}
.subject-resource-catalog__heading > p strong { color: var(--blue-700); }

.subject-resource-controls {
    padding: 18px;
    margin-top: 20px;
    background: var(--blue-50);
    border: 1px solid var(--blue-200);
    border-radius: var(--radius-md);
}
.subject-resource-type-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.subject-resource-type-filter > span,
.subject-resource-search label {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 800;
}
.subject-resource-type-filter button {
    min-height: 38px;
    padding: 7px 13px;
    color: var(--navy-900);
    background: var(--medlek-page-surface);
    border: 1px solid var(--blue-200);
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 800;
    cursor: pointer;
}
.subject-resource-type-filter button[aria-pressed="true"] {
    color: var(--white);
    background: var(--blue-700);
    border-color: var(--blue-700);
}
.subject-resource-controls .lesson-level-filter {
    padding-top: 14px;
    margin-top: 14px;
    border-top: 1px solid var(--blue-200);
}
.subject-resource-search {
    display: grid;
    gap: 6px;
    max-width: 470px;
    margin-top: 16px;
}
.subject-resource-search input {
    width: 100%;
    min-height: 44px;
    padding: 9px 13px;
    color: var(--ink);
    background: var(--medlek-page-surface);
    border: 1px solid var(--blue-300);
    border-radius: 8px;
}

.subject-resource-groups { padding-top: 8px; }
.subject-resource-group { padding-top: 34px; scroll-margin-top: 100px; }
.subject-resource-group[hidden],
.subject-resource-card[hidden],
.subject-resource-empty[hidden] { display: none !important; }
.subject-resource-group__heading {
    display: flex;
    gap: 12px;
    align-items: center;
    padding-bottom: 13px;
    border-bottom: 1px solid #deebf5;
}
.subject-resource-group__heading h2 {
    margin: 0;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: 1.45rem;
}
.subject-resource-group__heading span {
    padding: 4px 9px;
    margin-left: auto;
    color: var(--blue-700);
    background: var(--blue-50);
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 800;
}
.subject-resource-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    padding-top: 15px;
}
.subject-resource-card {
    min-width: 0;
    background: var(--medlek-page-surface);
    border: 1px solid #cfe0ee;
    border-radius: var(--radius-md);
    box-shadow: 0 6px 18px rgba(3, 29, 62, 0.055);
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}
.subject-resource-card:hover {
    border-color: var(--blue-300);
    box-shadow: var(--shadow-soft);
    transform: translateY(-2px);
}
.subject-resource-card > a {
    display: flex;
    min-height: 218px;
    flex-direction: column;
    padding: 20px;
    color: inherit;
    text-decoration: none;
}
.subject-resource-card__type {
    color: var(--blue-700);
    font-size: 0.66rem;
    font-weight: 850;
    letter-spacing: 0.075em;
    text-transform: uppercase;
}
.subject-resource-card h3 {
    margin: 7px 0 0;
    color: var(--navy-900);
    font-family: var(--serif);
    font-size: 1.18rem;
    line-height: 1.25;
}
.subject-resource-card p {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 0.76rem;
    line-height: 1.55;
}
.subject-resource-card__footer {
    display: flex;
    gap: 10px;
    justify-content: space-between;
    align-items: end;
    padding-top: 18px;
    margin-top: auto;
}
.subject-resource-card__levels {
    color: var(--muted);
    font-size: 0.66rem;
    font-weight: 750;
}
.subject-resource-card__cta {
    flex: 0 0 auto;
    color: var(--blue-700);
    font-size: 0.75rem;
    font-weight: 850;
}
.subject-resource-empty {
    padding: 24px;
    margin: 26px 0 0;
    color: var(--muted);
    text-align: center;
    background: var(--blue-50);
    border: 1px dashed var(--blue-300);
    border-radius: var(--radius-md);
}

@media (max-width: 1040px) {
    .resource-page-layout { grid-template-columns: minmax(0, 1fr); }
    .resource-sidebar { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .resource-collection-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
    .resource-hero__inner,
    .resource-page-layout { width: calc(100% - 28px); }
    .resource-hero { padding: 28px 0 34px; }
    .resource-hero h1 { font-size: clamp(2.1rem, 11vw, 3rem); overflow-wrap: anywhere; }
    .resource-page-layout { padding: 26px 0 38px; }
    .resource-sidebar,
    .resource-collection-grid { grid-template-columns: minmax(0, 1fr); }
    .resource-concept { grid-template-columns: minmax(0, 1fr); }
    .resource-concept .resource-accordion-panel { grid-column: auto; }
    .resource-concept-tools input { width: 100%; }
    .resource-concept-tools .resource-accordion-toolbar { width: 100%; margin-left: 0; }
    .resource-accordion-toolbar button { flex: 1; }
    .subject-resource-catalog__heading { align-items: start; }
    .subject-resource-controls { padding: 14px; }
    .subject-resource-type-filter > span { width: 100%; }
    .subject-resource-type-filter button { flex: 1 1 calc(50% - 8px); }
    .subject-resource-grid { grid-template-columns: minmax(0, 1fr); }
    .subject-resource-card > a { min-height: 0; }
    .subject-resource-card__footer { align-items: center; }
}