:root {
    --bg-page: #e6e6e6;
    --bg-surface: #ffffff;
    --bg-surface-soft: #f7f8fa;
    --text-primary: #080808;
    --text-secondary: #1f2228;
    --text-muted: #8f99aa;
    --accent: #3b52fe;
    --accent-strong: #2d43e0;
    --border-soft: #d9dce2;
    --footer-bg: #212a38;
    --footer-text: #edf1f7;
    --footer-muted: #a8b2c2;

    --shadow-soft: 0 10px 24px rgba(15, 23, 36, 0.08);
    --shadow-menu: 2px 2px 10px rgba(0, 0, 0, 0.2);
    --nav-rail-visible: 30px;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-pill: 999px;

    --space-1: 8px;
    --space-2: 12px;
    --space-3: 16px;
    --space-4: 24px;
    --space-5: 32px;
    --space-6: 48px;
    --space-7: 64px;

    --dur-fast: 0.18s;
    --dur-base: 0.28s;
    --dur-slow: 0.4s;
    --ease-standard: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.45;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg-page);
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--dur-fast) var(--ease-standard),
        opacity var(--dur-fast) var(--ease-standard);
}

a:hover {
    text-decoration: none;
}

button,
.btn {
    font: inherit;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: transform var(--dur-fast) var(--ease-standard),
        background-color var(--dur-fast) var(--ease-standard),
        color var(--dur-fast) var(--ease-standard),
        border-color var(--dur-fast) var(--ease-standard),
        box-shadow var(--dur-fast) var(--ease-standard);
}

button:hover,
.btn:hover {
    transform: translateY(-1px);
}

button:active,
.btn:active {
    transform: translateY(0);
}

button:disabled,
.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none;
}

:focus-visible {
    outline: 3px solid rgba(59, 82, 254, 0.38);
    outline-offset: 2px;
}

.fixed-container,
.Site-wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

header {
    background: var(--bg-surface);
    border-bottom: 1px solid rgba(20, 20, 20, 0.08);
}

header > .fixed-container {
    min-height: 84px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    column-gap: var(--space-5);
}

.site-brand {
    font-size: clamp(21px, 1.45vw, 28px);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--dur-fast) var(--ease-standard);
}

.site-brand:hover,
.site-brand:focus-visible {
    color: var(--accent-blue);
}

header nav {
    justify-self: center;
    display: flex;
    align-items: center;
    gap: clamp(22px, 2.2vw, 38px);
}

header nav a {
    font-size: clamp(15px, 0.95vw, 18px);
    color: var(--text-secondary);
}

header nav a:hover {
    color: #000;
}

.header-contact {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.phone-link {
    font-weight: 700;
    font-size: clamp(16px, 1.05vw, 21px);
    white-space: nowrap;
}

.light-button,
.light-button1 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border: 1px solid #2f2f2f;
    border-radius: var(--radius-md);
    background: transparent;
    color: #101010;
    text-decoration: none;
    line-height: 1.2;
}

.light-button:hover,
.light-button1:hover {
    background: #f4f5f9;
    box-shadow: 0 10px 16px rgba(15, 23, 36, 0.08);
}

.light-button {
    font-size: 14px;
}

.light-button1 {
    margin-left: 0;
    font-size: clamp(20px, 1.55vw, 26px);
    padding: 14px 30px;
}

.dark-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    border-color: var(--accent);
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 16px;
    padding: 12px 30px;
    box-shadow: 0 8px 18px rgba(59, 82, 254, 0.28);
    text-decoration: none;
    line-height: 1.2;
}

.dark-button:hover {
    background: var(--accent-strong);
    border-color: var(--accent-strong);
}

main section {
    padding-block: var(--space-5);
}

.first-block {
    padding-top: var(--space-4);
    padding-bottom: var(--space-6);
}

.first-block > .fixed-container {
    min-height: 500px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    background-image: url('img/photo.jpg');
    background-size: min(41vw, 520px);
    background-repeat: no-repeat;
    background-position: right center;
}

h1 {
    margin: 0 0 var(--space-3);
    font-size: clamp(40px, 4.2vw, 62px);
    line-height: 1.04;
    letter-spacing: -0.02em;
}

h2 {
    margin: 0;
    font-size: clamp(30px, 2.7vw, 42px);
    line-height: 1.1;
    letter-spacing: -0.01em;
}

.subtitle {
    margin: 0 0 var(--space-4);
    max-width: 470px;
    font-size: clamp(18px, 1.2vw, 23px);
    line-height: 1.28;
}

#services {
    padding-top: var(--space-5);
}

.services {
    margin: var(--space-6) 0;
    min-height: 240px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(18px, 2vw, 28px);
}

.services > div,
.service-card {
    min-height: 210px;
    font-size: clamp(15px, 1vw, 18px);
    line-height: 1.28;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding: clamp(18px, 1.9vw, 26px);
    border: 1px solid rgba(170, 180, 194, 0.45);
    border-radius: 16px;
    background: var(--bg-surface);
    box-shadow: 0 10px 20px rgba(14, 22, 38, 0.07);
    transition: transform var(--dur-base) var(--ease-standard),
        box-shadow var(--dur-base) var(--ease-standard),
        border-color var(--dur-base) var(--ease-standard);
}

.services > div:hover,
.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(120, 136, 161, 0.58);
    box-shadow: 0 14px 26px rgba(15, 24, 40, 0.12);
}

.service-card p {
    margin: 0;
    font-size: inherit;
}

.services img {
    width: clamp(92px, 9vw, 130px);
    height: clamp(92px, 9vw, 130px);
    object-fit: contain;
    align-self: center;
    transition: transform var(--dur-base) var(--ease-standard),
        filter var(--dur-base) var(--ease-standard);
}

.services > div:hover img,
.service-card:hover img {
    transform: translateY(-3px) scale(1.02);
    filter: saturate(1.08);
}

.pricing-wrap {
    margin-top: var(--space-2);
    margin-bottom: var(--space-6);
    display: flex;
    justify-content: center;
}

.layout-container {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    background-color: rgba(13, 20, 31, 0.65);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--dur-base) var(--ease-standard),
        visibility var(--dur-base) var(--ease-standard);
    z-index: 12000;
}

.layout-container.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.layout {
    width: min(440px, 100%);
    max-width: 100%;
    padding: 30px;
    border-radius: var(--radius-lg);
    background: var(--bg-surface);
    position: relative;
    box-shadow: 0 18px 40px rgba(12, 18, 30, 0.24);
    transform: translateY(18px) scale(0.98);
    transition: transform var(--dur-base) var(--ease-standard);
}

.layout-container.is-open .layout {
    transform: translateY(0) scale(1);
}

.layout h2 {
    margin: 0 0 var(--space-4);
    font-size: 30px;
}

.modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 34px;
    height: 34px;
    border: 0;
    border-radius: 50%;
    padding: 0;
    font-size: 26px;
    line-height: 1;
    background: #f2f4f9;
    color: #1c2029;
}

.modal-close:hover {
    background: #e7ebf4;
}

.request-form {
    display: grid;
    gap: var(--space-3);
}

.request-form input {
    width: 100%;
    margin: 0;
    padding: 12px 14px;
    font-size: 19px;
    border-radius: 10px;
    border: 1px solid #cfd5df;
    background: #fff;
    transition: border-color var(--dur-fast) var(--ease-standard),
        box-shadow var(--dur-fast) var(--ease-standard);
}

.request-form input:focus {
    border-color: rgba(59, 82, 254, 0.65);
    box-shadow: 0 0 0 4px rgba(59, 82, 254, 0.14);
    outline: none;
}

.form-status {
    margin: 2px 0 0;
    min-height: 22px;
    font-size: 14px;
    color: #637083;
    transition: color var(--dur-fast) var(--ease-standard);
}

.form-status.is-error {
    color: #b42318;
}

.form-status.is-success {
    color: #137333;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.nav {
    position: fixed;
    top: 20px;
    left: 0;
    z-index: 11000;
}

.nav-toggle {
    display: none;
}

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

.nav li {
    position: relative;
    margin-bottom: 5px;
}

.nav > ul > li > a,
.submenu li > a {
    display: block;
    color: #fff;
    border-radius: 0 10px 10px 0;
    text-decoration: none;
}

.nav > ul > li > a {
    width: 176px;
    padding: 14px 20px;
    font-size: 13px;
    transform: translateX(calc(-100% + var(--nav-rail-visible)));
    box-shadow: var(--shadow-menu);
    transition: transform var(--dur-base) var(--ease-standard),
        filter var(--dur-fast) var(--ease-standard);
}

.nav li:hover > a,
.nav li:focus-within > a {
    transform: translateX(0);
}

.submenu {
    position: absolute;
    top: 0;
    left: 100%;
    min-width: 220px;
    margin: 0;
    padding: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(6px);
    transition: visibility 0s linear var(--dur-fast),
        transform var(--dur-fast) var(--ease-standard);
}

.nav li.has-submenu > .submenu::before {
    content: '';
    position: absolute;
    top: 0;
    left: -8px;
    width: 8px;
    height: 100%;
}

.nav li:hover > .submenu,
.nav li:focus-within > .submenu {
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
    transition-delay: 0s;
}

.submenu li > a {
    width: 100%;
    margin: 0 0 2px;
    padding: 11px 14px;
    font-size: 12px;
    font-weight: 500;
    white-space: normal;
    box-shadow: 4px 0 8px rgba(0, 0, 0, 0.12);
    background-color: var(--submenu-color, #5c6e91);
}

.submenu.nested {
    left: 100%;
    top: 0;
    z-index: 2;
}

.submenu.nested li > a {
    opacity: 1;
    color: #ffffff;
    background-color: #5c6e91;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 8px 8px 18px rgba(10, 18, 32, 0.24);
}

.links + .submenu .submenu.nested li > a {
    background-color: #5c6e91;
}

.submenu li.has-submenu:hover > .submenu.nested,
.submenu li.has-submenu:focus-within > .submenu.nested {
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
}

.home {
    background-color: #ff4d4d;
}

.home + .submenu {
    --submenu-color: #ff4d4d;
}

.info {
    background-color: #3b52fe;
}

.info + .submenu {
    --submenu-color: #3b52fe;
}

.students {
    background-color: #9b59b6;
}

.students + .submenu {
    --submenu-color: #9b59b6;
}

.parents {
    background-color: #a0522d;
}

.parents + .submenu {
    --submenu-color: #a0522d;
}

.achievements {
    background-color: #d98e04;
}

.achievements + .submenu {
    --submenu-color: #d98e04;
}

.gallery {
    background-color: #c85fa8;
}

.gallery + .submenu {
    --submenu-color: #c85fa8;
}

.video {
    background-color: #c93c5a;
}

.video + .submenu {
    --submenu-color: #c93c5a;
}

.methodica {
    background-color: #1e9e8f;
}

.methodica + .submenu {
    --submenu-color: #1e9e8f;
}

.links {
    background-color: #5c6e91;
}

.links + .submenu {
    --submenu-color: #5c6e91;
}

.home,
.info,
.students,
.parents,
.achievements,
.gallery,
.video,
.methodica,
.links {
    background-clip: padding-box;
}

.submenu li > a:hover {
    filter: brightness(1.08);
}

.content-main {
    padding-top: 0;
    padding-bottom: var(--space-7);
}

.content-hero {
    padding-top: var(--space-6);
    padding-bottom: var(--space-4);
}

.content-hero h1 {
    margin: 0 0 var(--space-3);
    font-size: clamp(44px, 5vw, 72px);
}

.content-lead {
    margin: 0;
    max-width: 980px;
    color: #313847;
    font-size: clamp(18px, 1.2vw, 22px);
    line-height: 1.5;
}

.content-actions {
    margin-top: var(--space-4);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.content-section {
    padding-top: var(--space-4);
    padding-bottom: var(--space-4);
}

.content-section h2 {
    margin: 0 0 var(--space-4);
}

.content-list {
    margin: 0;
    padding-left: 1.2em;
    display: grid;
    gap: 12px;
    font-size: 17px;
    line-height: 1.45;
}

.content-list strong {
    color: #161c28;
}

.numbered {
    list-style: decimal;
}

.topic-grid,
.lesson-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
}

.lesson-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.performance-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
}

.topic-card,
.lesson-card,
.posture-card,
.home-photo-card {
    margin: 0;
    border: 1px solid rgba(162, 174, 191, 0.48);
    border-radius: 16px;
    background: #f8f9fc;
    box-shadow: 0 10px 20px rgba(12, 18, 30, 0.08);
    overflow: hidden;
}

.topic-card,
.lesson-card {
    padding: 18px;
}

.topic-card h3,
.lesson-card h3 {
    margin: 0 0 10px;
    font-size: clamp(24px, 1.9vw, 30px);
    line-height: 1.12;
}

.topic-card p {
    margin: 0;
    color: #4a5567;
    font-size: 16px;
}

.topic-card img,
.posture-card img,
.home-photo-card img {
    width: 100%;
    display: block;
    object-fit: cover;
}

.topic-card img {
    aspect-ratio: 16 / 10;
    margin-bottom: 14px;
    border-radius: 12px;
}

.lesson-card video {
    width: 100%;
    display: block;
    border-radius: 12px;
    background: #0f1119;
}

.performance-card {
    padding: 16px;
    display: grid;
    gap: 12px;
    align-content: start;
}

.performance-card h3 {
    margin: 0;
    font-size: clamp(21px, 1.55vw, 27px);
    line-height: 1.18;
}

.performance-card .media-description {
    margin: 0;
    font-size: 15px;
}

.performance-card video {
    width: 100%;
    max-height: min(62vh, 560px);
    object-fit: contain;
    border-radius: 12px;
    background: #0f1119;
}

.posture-grid {
    margin-top: var(--space-5);
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
}

.posture-card figcaption,
.home-photo-card figcaption {
    padding: 12px 14px;
    color: #2a3343;
    font-size: 15px;
}

.is-lightboxable {
    cursor: zoom-in;
    transition: border-color var(--dur-fast) var(--ease-standard),
        box-shadow var(--dur-fast) var(--ease-standard);
}

.is-lightboxable:hover {
    border-color: rgba(120, 136, 161, 0.56);
    box-shadow: 0 14px 26px rgba(13, 20, 34, 0.12);
}

body.lightbox-open {
    overflow: hidden;
}

.image-lightbox {
    position: fixed;
    inset: 0;
    z-index: 12500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(16px, 2.8vw, 36px);
    background: rgba(8, 12, 20, 0.78);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--dur-base) var(--ease-standard),
        visibility var(--dur-base) var(--ease-standard);
}

.image-lightbox.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.image-lightbox__dialog {
    position: relative;
    width: min(1180px, 100%);
    max-height: 100%;
    padding: clamp(12px, 1.8vw, 20px);
    border-radius: 16px;
    border: 1px solid rgba(169, 177, 190, 0.52);
    background: rgba(246, 248, 253, 0.99);
    box-shadow: 0 24px 46px rgba(5, 10, 18, 0.34);
    display: grid;
    gap: 10px;
    transform: translateY(14px) scale(0.985);
    transition: transform var(--dur-base) var(--ease-standard);
}

.image-lightbox.is-open .image-lightbox__dialog {
    transform: translateY(0) scale(1);
}

.image-lightbox__img {
    width: 100%;
    max-height: min(78vh, 930px);
    display: block;
    object-fit: contain;
    border-radius: 12px;
    background: #ffffff;
}

.image-lightbox__caption {
    margin: 0;
    color: #2c3546;
    font-size: 15px;
    line-height: 1.35;
}

.image-lightbox__caption:empty {
    display: none;
}

.image-lightbox__close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(217, 223, 234, 0.72);
    background: rgba(17, 24, 38, 0.82);
    color: #ffffff;
    font-size: 30px;
    line-height: 1;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.image-lightbox__close:hover {
    background: rgba(17, 24, 38, 0.94);
    border-color: rgba(232, 236, 244, 0.92);
}

.content-note {
    margin: var(--space-4) 0 0;
    padding: 14px 16px;
    border-left: 4px solid #3b52fe;
    border-radius: 10px;
    background: #edf1ff;
    color: #1f2a3f;
    font-size: 16px;
    line-height: 1.45;
}

.info-card {
    padding: clamp(22px, 3vw, 38px);
    border: 1px solid rgba(158, 171, 190, 0.5);
    border-radius: 18px;
    background: linear-gradient(145deg, #ffffff 0%, #f5f7fb 100%);
    box-shadow: 0 14px 28px rgba(13, 20, 34, 0.09);
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
    gap: clamp(22px, 3vw, 42px);
    align-items: start;
}

.info-card--compact {
    grid-template-columns: 1fr;
    max-width: 860px;
}

.info-card__eyebrow {
    margin: 0 0 10px;
    color: #5c6e91;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.info-card__lead {
    margin: var(--space-3) 0 0;
    color: #303948;
    font-size: clamp(18px, 1.2vw, 22px);
    line-height: 1.5;
}

.info-facts {
    margin: 0;
    display: grid;
    gap: 12px;
}

.info-facts div {
    padding: 16px 18px;
    border: 1px solid rgba(178, 188, 203, 0.48);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.72);
}

.info-facts dt {
    margin: 0 0 6px;
    color: #677186;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.info-facts dd {
    margin: 0;
    color: #101620;
    font-size: clamp(17px, 1.15vw, 20px);
    font-weight: 700;
    line-height: 1.35;
}

.section-head {
    margin-bottom: var(--space-4);
}

.section-head h2 {
    margin-top: 0;
}

.education-grid,
.achievement-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-4);
}

.education-card {
    display: block;
}

.education-card h3 {
    margin: 0 0 var(--space-3);
    font-size: clamp(24px, 1.9vw, 30px);
    line-height: 1.15;
}

.education-panel,
.education-details,
.achievement-card {
    margin-top: var(--space-4);
    padding: clamp(20px, 2.4vw, 32px);
    border: 1px solid rgba(158, 171, 190, 0.5);
    border-radius: 18px;
    background: #f8f9fc;
    box-shadow: 0 12px 24px rgba(13, 20, 34, 0.08);
}

.achievement-card {
    margin-top: 0;
}

.achievement-card h2 {
    margin: 0 0 12px;
    font-size: clamp(24px, 1.8vw, 30px);
}

.achievement-card p {
    margin: 0;
    color: #3f4858;
    font-size: 17px;
    line-height: 1.45;
}

.timeline-list {
    margin-top: var(--space-4);
    display: grid;
    gap: 12px;
}

.timeline-item {
    padding: 16px 18px;
    border: 1px solid rgba(178, 188, 203, 0.45);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.78);
}

.timeline-item time {
    display: block;
    margin-bottom: 8px;
    color: #5c6e91;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.timeline-item h3 {
    margin: 0 0 8px;
    color: #111722;
    font-size: clamp(18px, 1.25vw, 22px);
    line-height: 1.25;
}

.timeline-item p {
    margin: 0;
    color: #475163;
    font-size: 16px;
    line-height: 1.45;
}

.education-details summary {
    cursor: pointer;
    color: #111722;
    font-size: clamp(22px, 1.8vw, 30px);
    font-weight: 900;
    line-height: 1.15;
}

.education-details summary::marker {
    color: #5c6e91;
}

.home-info-section {
    padding-top: 0;
    padding-bottom: var(--space-5);
}

.home-info-card {
    background: linear-gradient(145deg, #ffffff 0%, #f4f6fb 58%, #edf1ff 100%);
    grid-template-columns: minmax(0, 1.25fr) minmax(360px, 1fr);
}

.home-info-card .content-actions {
    margin-top: var(--space-4);
}

.home-gallery-section {
    padding-top: var(--space-4);
    padding-bottom: var(--space-6);
}

.home-gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
}

.home-photo-card img {
    aspect-ratio: 4 / 3;
}

.media-section {
    background: var(--bg-surface-soft);
    padding-top: var(--space-6);
    padding-bottom: var(--space-6);
}

.media-head {
    margin-bottom: var(--space-4);
}

.media-head h2 {
    margin: 0 0 10px;
}

.media-head p {
    margin: 0;
    max-width: 820px;
    color: #4b5565;
    font-size: clamp(16px, 1.1vw, 19px);
}

.media-page-note {
    margin: 0 0 var(--space-4);
    max-width: 880px;
    color: #4b5565;
    font-size: clamp(16px, 1.05vw, 18px);
    line-height: 1.45;
}

.media-container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-4);
    align-items: start;
}

.video-wrapper,
.audio-wrapper {
    min-width: 0;
    border: 1px solid rgba(170, 180, 194, 0.52);
    border-radius: 16px;
    background: var(--bg-surface);
    padding: clamp(18px, 1.6vw, 24px);
    box-shadow: 0 12px 24px rgba(15, 22, 38, 0.09);
}

.media-card h3 {
    margin: 0 0 8px;
    font-size: clamp(22px, 1.8vw, 30px);
    line-height: 1.15;
}

.media-description {
    margin: 0 0 16px;
    color: #4b5565;
    font-size: clamp(15px, 1vw, 18px);
    line-height: 1.4;
}

.video-wrapper video,
.audio-wrapper audio {
    width: 100%;
    max-width: 100%;
    display: block;
    margin: 0;
}

.video-wrapper video {
    border-radius: 12px;
    background: #0f1118;
}

.audio-wrapper audio {
    border-radius: 12px;
}

.Footer.Site-footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 38px 0 30px;
    line-height: 1.5;
}

.Footer-grid.Footer-grid_clm2 {
    display: grid;
    grid-template-columns: minmax(200px, 1fr) minmax(340px, 460px);
    justify-content: space-between;
    gap: clamp(30px, 4vw, 80px);
    align-items: start;
}

.Footer-grid.Footer-grid_clm2 .Footer-cell_logo {
    text-align: left;
}

.logo.logo_footer.Footer-logo {
    margin-bottom: 18px;
}

.logo-title {
    margin-bottom: 5px;
    color: #fff;
    font-size: clamp(22px, 1.8vw, 34px);
    font-weight: 700;
    line-height: 1.1;
}

.logo-sub {
    color: var(--footer-muted);
    font-size: clamp(14px, 1vw, 18px);
}

.Footer-section {
    margin: 0 0 24px;
}

.Footer-section:last-child {
    margin-bottom: 0;
}

.btn.Footer-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(237, 241, 247, 0.9);
    color: var(--footer-text);
    font-size: 14px;
    text-decoration: none;
    background: transparent;
}

.btn.Footer-btn:hover {
    background: rgba(255, 255, 255, 0.08);
}

.menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.menu.menu_vt.menu_footer .menu-item {
    margin-bottom: 10px;
}

.menu.menu_vt.menu_footer .menu-item:last-child {
    margin-bottom: 0;
}

.menu.menu_vt .menu-link {
    color: var(--footer-muted);
    font-size: 15px;
    text-decoration: none;
}

.menu.menu_vt .menu-link:hover {
    color: #ffffff;
}

.menu.menu_img.menu_footer {
    display: flex;
    align-items: center;
    gap: 14px;
}

.menu.menu_img .menu-link {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: var(--footer-text);
    background: rgba(255, 255, 255, 0.03);
}

.menu.menu_img .menu-link:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-1px);
}

.menu.menu_img .menu-link svg {
    width: 26px;
    height: 26px;
}

.placeholder-main {
    padding-block: clamp(72px, 11vh, 140px);
}

.placeholder-section > .fixed-container {
    min-height: 46vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: var(--space-3);
}

.placeholder-eyebrow {
    margin: 0;
    font-size: 14px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #6e7a8c;
}

.placeholder-text {
    margin: 0;
    max-width: 820px;
    font-size: clamp(18px, 1.3vw, 24px);
    color: #2d313b;
}

.placeholder-section h1 {
    margin: 0;
    font-size: clamp(40px, 5.2vw, 72px);
    line-height: 1.05;
    overflow-wrap: anywhere;
    hyphens: auto;
}

.placeholder-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 260px;
}

.placeholder-anchor {
    margin: 0;
    font-size: clamp(15px, 1.1vw, 19px);
    color: #3a4351;
}

@media (max-width: 1240px) {
    .fixed-container,
    .Site-wrap {
        padding-inline: 20px;
    }

    header > .fixed-container {
        column-gap: var(--space-4);
    }

    .first-block > .fixed-container {
        background-size: min(45vw, 500px);
    }
}

@media (max-width: 1024px) {
    header > .fixed-container {
        min-height: 82px;
        column-gap: var(--space-3);
    }

    header nav {
        gap: 20px;
    }

    .phone-link {
        font-size: 17px;
    }

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

    .media-container {
        grid-template-columns: 1fr;
    }

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

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

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

@media (min-width: 1101px) and (max-width: 1360px) {
    :root {
        --nav-rail-visible: 26px;
    }

    .fixed-container,
    .Site-wrap {
        padding-left: 78px;
        padding-right: 20px;
    }

    .home-info-card {
        grid-template-columns: minmax(0, 1.12fr) minmax(380px, 1fr);
    }
}

@media (max-width: 1100px) {
    .nav {
        top: 12px;
        left: 12px;
        right: 12px;
    }

    .nav-toggle {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        justify-content: center;
        min-height: 44px;
        padding: 10px 14px;
        border: 1px solid rgba(54, 67, 93, 0.35);
        background: rgba(255, 255, 255, 0.96);
        color: #172133;
        border-radius: 12px;
        font-size: 15px;
        font-weight: 700;
        line-height: 1;
        letter-spacing: 0.01em;
        box-shadow: 0 10px 20px rgba(10, 17, 30, 0.14);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
    }

    .nav-toggle::before {
        content: '☰';
        font-size: 16px;
        line-height: 1;
        font-weight: 700;
    }

    .nav-toggle:hover {
        background: #ffffff;
        border-color: rgba(54, 67, 93, 0.48);
    }

    .nav.nav--open .nav-toggle {
        background: #24344f;
        color: #ffffff;
        border-color: #24344f;
        box-shadow: 0 12px 22px rgba(11, 18, 32, 0.24);
    }

    .nav.nav--open .nav-toggle::before {
        content: '✕';
        font-size: 14px;
    }

    .nav.nav--open .nav-toggle:hover {
        background: #1f2d45;
        border-color: #1f2d45;
    }

    .nav > ul {
        position: absolute;
        top: calc(100% + 10px);
        left: 0;
        width: min(92vw, 360px);
        max-height: min(74vh, 640px);
        overflow: auto;
        background: #fff;
        border: 1px solid #d7dbe4;
        border-radius: 14px;
        padding: 10px;
        box-shadow: 0 16px 36px rgba(7, 13, 25, 0.2);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-6px);
        transition: opacity var(--dur-base) var(--ease-standard),
            visibility var(--dur-base) var(--ease-standard),
            transform var(--dur-base) var(--ease-standard);
    }

    .nav.nav--open > ul {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
    }

    .nav > ul > li {
        margin-bottom: 6px;
    }

    .nav > ul > li > a {
        width: 100%;
        transform: none;
        border-radius: 10px;
        box-shadow: none;
    }

    .submenu,
    .submenu.nested {
        position: static;
        left: auto;
        top: auto;
        min-width: 0;
        margin-top: 4px;
        padding-left: 8px;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: none;
        display: none;
    }

    .nav li.nav-item-open > .submenu {
        display: block;
    }

    .submenu li > a {
        margin-bottom: 4px;
        border-radius: 10px;
        box-shadow: none;
    }

    header > .fixed-container {
        min-height: auto;
        grid-template-columns: 1fr;
        row-gap: 10px;
        padding-top: 88px;
        padding-bottom: 16px;
    }

    header nav {
        display: none;
    }

    .header-contact {
        width: 100%;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 10px;
    }

    .light-button {
        padding-inline: 26px;
    }

    .first-block {
        padding-top: var(--space-5);
    }

    .first-block > .fixed-container {
        min-height: 510px;
        background-size: min(65vw, 340px);
        background-position: right bottom;
    }

    h1 {
        max-width: 700px;
    }

    .subtitle {
        max-width: 95%;
    }

    .info-card {
        grid-template-columns: 1fr;
    }

    .education-grid,
    .achievement-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 700px) {
    body {
        font-size: 16px;
    }

    .fixed-container,
    .Site-wrap {
        padding-inline: 16px;
    }

    .site-brand {
        font-size: 21px;
    }

    .phone-link {
        font-size: 16px;
    }

    .light-button {
        width: 100%;
        justify-content: center;
    }

    .first-block > .fixed-container {
        min-height: 0;
        padding-bottom: 0;
        background-image: none;
    }

    h1 {
        font-size: clamp(34px, 9.5vw, 46px);
    }

    .subtitle {
        font-size: clamp(16px, 4.8vw, 20px);
        max-width: 100%;
    }

    .content-hero h1 {
        font-size: clamp(36px, 10vw, 48px);
    }

    .content-lead {
        font-size: 18px;
    }

    .content-list {
        font-size: 16px;
    }

    .content-actions .light-button,
    .content-actions .dark-button {
        width: 100%;
    }

    .info-card {
        padding: 18px;
    }

    .info-facts div {
        padding: 14px;
    }

    .info-facts dd {
        font-size: 16px;
    }

    .education-panel,
    .education-details,
    .achievement-card {
        padding: 18px;
    }

    .timeline-item {
        padding: 14px;
    }

    .services {
        margin: var(--space-5) 0;
        grid-template-columns: 1fr;
    }

    .services > div,
    .service-card {
        min-height: 0;
        align-items: center;
        text-align: center;
        gap: 12px;
        padding: 18px 16px;
    }

    .service-card p {
        text-wrap: balance;
    }

    .light-button1 {
        width: 100%;
        font-size: 20px;
        padding: 14px 22px;
    }

    .video-wrapper,
    .audio-wrapper {
        padding: 16px;
    }

    .media-card h3 {
        font-size: clamp(20px, 7vw, 25px);
    }

    .topic-grid,
    .lesson-grid,
    .performance-grid,
    .posture-grid,
    .home-gallery-grid {
        grid-template-columns: 1fr;
    }

    .image-lightbox {
        padding: 12px;
    }

    .image-lightbox__dialog {
        border-radius: 14px;
        padding: 10px;
    }

    .image-lightbox__img {
        max-height: 72vh;
        border-radius: 10px;
    }

    .image-lightbox__close {
        top: 8px;
        right: 8px;
        width: 36px;
        height: 36px;
        font-size: 24px;
    }

    .image-lightbox__caption {
        font-size: 14px;
    }

    .Footer.Site-footer {
        padding-top: 34px;
        padding-bottom: 30px;
    }

    .placeholder-main {
        padding-block: 80px;
    }

    .placeholder-section > .fixed-container {
        min-height: 0;
    }

    .placeholder-text {
        font-size: 21px;
    }

    .placeholder-section h1 {
        font-size: clamp(40px, 10vw, 52px);
    }

    .Footer-grid.Footer-grid_clm2 {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 28px;
    }

    .Footer-grid.Footer-grid_clm2 .Footer-cell_logo,
    .Footer-grid.Footer-grid_clm2 .Footer-cell_menu {
        text-align: center;
    }

    .Footer-cell.Footer-cell_logo {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .menu.menu_img.menu_footer,
    .menu.menu_vt.menu_footer {
        justify-content: center;
    }
}

@media (max-width: 520px) {
    .layout {
        padding: 24px 16px;
    }

    .layout h2 {
        font-size: 28px;
    }

    .request-form input {
        font-size: 18px;
        padding: 11px 12px;
    }

    .first-block > .fixed-container {
        min-height: 0;
    }

    .dark-button {
        width: 100%;
        justify-content: center;
    }

    .placeholder-action {
        width: 100%;
        min-width: 0;
    }
}

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

    *,
    *::before,
    *::after {
        transition-duration: 0.001ms !important;
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
    }
}