/* ==========================================================
   Главная библиотеки (library/landing.html).
   Самостоятельный файл: не тянет home.css и library.css, чтобы
   правки каталога не задевали витрину и наоборот. Палитра —
   та же, что у страницы входа: тёмно-синий герой, синий,
   фиолетовый и золотой акценты.
   ========================================================== */

:root {
    --font-sans: "Manrope", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
    --font-display: "Outfit", "Manrope", "Segoe UI", system-ui, sans-serif;

    --navy: #0b1a3d;
    --navy-2: #12285c;
    --ink: #14294c;
    --ink-strong: #0b1d3c;
    --muted: #5c7196;
    --soft: #8296b8;
    --blue: #2b6fe0;
    --blue-bright: #4f97ff;
    --blue-tint: #e9f1ff;
    --violet: #7c5cf5;
    --gold: #f2b635;
    --mint: #2fbf8f;

    --page: #f4f7fd;
    --surface: #fff;
    --line: rgba(116, 150, 205, 0.22);
    --line-strong: rgba(116, 150, 205, 0.4);

    --shadow-sm: 0 2px 8px rgba(17, 48, 99, 0.05);
    --shadow-md: 0 14px 34px rgba(17, 48, 99, 0.1);
    --shadow-lg: 0 30px 70px rgba(17, 48, 99, 0.16);

    --r: 20px;
    --r-lg: 28px;
    --wrap: 1200px;
    --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 90px;
}

body {
    margin: 0;
    background: var(--page);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

h1,
h2,
h3 {
    margin: 0;
    font-family: var(--font-display);
    color: var(--ink-strong);
    letter-spacing: -0.025em;
    line-height: 1.1;
}

.sprite {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
}

.i {
    flex: none;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.ln-wrap {
    width: min(100% - 40px, var(--wrap));
    margin-inline: auto;
}

/* Подложки обложек — как в каталоге */
.tint-blue { --tint: #e6edff; }
.tint-amber { --tint: #fff1db; }
.tint-violet { --tint: #eee9fd; }
.tint-rose { --tint: #fde8ee; }
.tint-teal { --tint: #dff3ef; }
.tint-green { --tint: #e4f4e7; }
.tint-slate { --tint: #ebeef5; }

/* ---------------------------------------------------------- кнопки */
.ln-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 52px;
    padding: 0 26px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 700;
    font-size: 15.5px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.ln-btn--sm {
    min-height: 42px;
    padding: 0 20px;
    font-size: 14.5px;
}

.ln-btn--light {
    background: #fff;
    color: var(--navy);
    box-shadow: 0 10px 26px rgba(4, 12, 34, 0.22);
}

.ln-btn--ghost {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.06);
}

.ln-btn--ghost:hover {
    background: rgba(255, 255, 255, 0.14);
}

:focus-visible {
    outline: 3px solid rgba(79, 151, 255, 0.6);
    outline-offset: 3px;
    border-radius: 10px;
}

/* ---------------------------------------------------------- шапка */
.ln-top {
    position: fixed;
    inset: 0 0 auto;
    z-index: 50;
    transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

.ln-top__in {
    display: flex;
    align-items: center;
    gap: 28px;
    height: 76px;
}

.ln-top.is-scrolled {
    background: rgba(11, 26, 61, 0.82);
    backdrop-filter: blur(16px) saturate(1.4);
    -webkit-backdrop-filter: blur(16px) saturate(1.4);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}

.ln-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: #fff;
}

.ln-brand__mark {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 13px;
    background: #fff;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.22);
}

.ln-brand__text {
    display: grid;
    line-height: 1.15;
}

.ln-brand__text b {
    font-family: var(--font-display);
    font-size: 18px;
    letter-spacing: -0.01em;
}

.ln-brand__text small {
    font-size: 12px;
    font-weight: 600;
    color: rgba(214, 226, 255, 0.7);
}

.ln-nav {
    display: flex;
    gap: 4px;
    margin-left: auto;
}

.ln-nav a {
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 14.5px;
    font-weight: 600;
    color: rgba(226, 234, 255, 0.82);
    transition: background 0.2s ease, color 0.2s ease;
}

.ln-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* ---------------------------------------------------------- герой */
.ln-hero {
    position: relative;
    overflow: hidden;
    isolation: isolate;
    padding: 150px 0 150px;
    color: #fff;
    background:
        radial-gradient(110% 80% at 0% 0%, #1d3f8f 0%, transparent 55%),
        radial-gradient(80% 70% at 100% 100%, #3a2a8c 0%, transparent 60%),
        linear-gradient(165deg, var(--navy-2), var(--navy) 70%);
    border-radius: 0 0 44px 44px;
}

.ln-hero__bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

.ln-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    opacity: 0.55;
    animation: ln-orb 18s ease-in-out infinite alternate;
}

.ln-orb--a { width: 460px; height: 460px; left: -120px; top: 80px; background: #2b6fe0; }
.ln-orb--b { width: 380px; height: 380px; right: 8%; top: -120px; background: #7c5cf5; animation-delay: -6s; }
.ln-orb--c { width: 300px; height: 300px; right: 30%; bottom: -160px; background: #f2b635; opacity: 0.22; animation-delay: -11s; }

@keyframes ln-orb {
    to { transform: translate(60px, 40px) scale(1.12); }
}

/* Тонкая сетка «тетрадной клетки», гаснущая к краям */
.ln-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 44px 44px;
    -webkit-mask-image: radial-gradient(70% 70% at 60% 40%, #000 0%, transparent 75%);
            mask-image: radial-gradient(70% 70% at 60% 40%, #000 0%, transparent 75%);
}

.ln-hero__in {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
    align-items: center;
}

.ln-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px 8px 12px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    color: #dfe8ff;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: background 0.2s ease;
}

.ln-pill:hover {
    background: rgba(255, 255, 255, 0.14);
}

.ln-pill__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #6fe0b5;
    box-shadow: 0 0 0 0 rgba(111, 224, 181, 0.6);
    animation: ln-ping 2.2s ease-out infinite;
}

@keyframes ln-ping {
    70% { box-shadow: 0 0 0 9px rgba(111, 224, 181, 0); }
    100% { box-shadow: 0 0 0 0 rgba(111, 224, 181, 0); }
}

.ln-hero h1 {
    margin-top: 26px;
    color: #fff;
    font-size: clamp(42px, 5.6vw, 76px);
    line-height: 1;
    letter-spacing: -0.04em;
}

.ln-hero h1 em {
    font-style: normal;
    background: linear-gradient(100deg, #9fc1ff 5%, #c7b5ff 55%, #ffd27a 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.ln-lead {
    max-width: 540px;
    margin: 24px 0 0;
    font-size: 18px;
    line-height: 1.6;
    color: rgba(220, 230, 255, 0.82);
}

.ln-search {
    display: flex;
    align-items: center;
    gap: 6px;
    max-width: 560px;
    margin-top: 34px;
    padding: 7px 7px 7px 20px;
    border-radius: 20px;
    background: #fff;
    color: var(--soft);
    box-shadow: 0 24px 50px rgba(3, 10, 30, 0.35), 0 0 0 6px rgba(255, 255, 255, 0.08);
    transition: box-shadow 0.25s ease;
}

.ln-search:focus-within {
    box-shadow: 0 24px 50px rgba(3, 10, 30, 0.35), 0 0 0 6px rgba(79, 151, 255, 0.45);
}

.ln-search input {
    flex: 1;
    min-width: 0;
    height: 50px;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--ink-strong);
    font: 600 16.5px var(--font-sans);
}

.ln-search input::placeholder {
    color: var(--soft);
    font-weight: 500;
}

.ln-search button {
    height: 50px;
    padding: 0 26px;
    border: 0;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--blue-bright), var(--blue));
    color: #fff;
    font: 700 15.5px var(--font-sans);
    cursor: pointer;
    box-shadow: 0 10px 22px rgba(28, 84, 176, 0.35);
    transition: transform 0.2s ease, filter 0.2s ease;
}

.ln-search button:hover {
    filter: brightness(1.08);
    transform: translateY(-1px);
}

.ln-quick {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.ln-quick a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px 6px 14px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    color: #e6edff;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: background 0.2s ease, transform 0.2s ease;
}

.ln-quick a:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.ln-quick b {
    min-width: 24px;
    padding: 1px 7px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    font-size: 12px;
    text-align: center;
}

/* Сцена справа: настоящие карточки каталога веером, медленно плывут */
.ln-stage {
    position: relative;
    height: 500px;
    perspective: 1400px;
}

.ln-float {
    position: absolute;
    width: 300px;
    border-radius: 22px;
    overflow: hidden;
    background: #fff;
    color: var(--ink);
    box-shadow: 0 40px 80px rgba(3, 10, 30, 0.45), 0 0 0 1px rgba(255, 255, 255, 0.1);
    animation: ln-float 9s ease-in-out infinite;
    transition: transform 0.4s var(--ease);
}

.ln-float--1 { left: 4%; top: 40px; --rot: -7deg; z-index: 2; }
.ln-float--2 { right: 0; top: 0; --rot: 6deg; animation-delay: -3s; z-index: 1; width: 270px; }
.ln-float--3 { left: 26%; bottom: 0; --rot: -2deg; animation-delay: -6s; z-index: 3; }

@keyframes ln-float {
    0%, 100% { transform: rotate(var(--rot)) translateY(0); }
    50% { transform: rotate(var(--rot)) translateY(-14px); }
}

.ln-float__cover {
    display: block;
    aspect-ratio: 16 / 8.5;
    background: var(--tint, #eef2fa);
}

.ln-float__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ln-float__body {
    display: grid;
    gap: 4px;
    padding: 14px 16px 16px;
}

.ln-float__body b {
    font-family: var(--font-display);
    font-size: 16.5px;
    line-height: 1.25;
    color: var(--ink-strong);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ln-float__meta {
    font-size: 13px;
    color: var(--muted);
}

.ln-kind {
    font-size: 11.5px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--blue);
}

.ln-badge {
    position: absolute;
    z-index: 4;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px 12px 12px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.94);
    color: var(--ink);
    box-shadow: 0 20px 44px rgba(3, 10, 30, 0.35);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: ln-float 7s ease-in-out infinite;
    --rot: 0deg;
}

.ln-badge b {
    display: block;
    font-size: 14px;
    line-height: 1.2;
    color: var(--ink-strong);
}

.ln-badge small {
    font-size: 12.5px;
    color: var(--muted);
}

.ln-badge--check { right: -10px; top: 46%; animation-delay: -2s; }
.ln-badge--class { left: -18px; bottom: 70px; animation-delay: -4.5s; }

.ln-badge__ic {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, #46d6a3, var(--mint));
    color: #fff;
}

.ln-avatars {
    display: flex;
}

.ln-avatars i {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    margin-left: -8px;
    border-radius: 50%;
    border: 2px solid #fff;
    font-style: normal;
    font-size: 11px;
    font-weight: 800;
    color: #fff;
    background: var(--blue);
}

.ln-avatars i:first-child { margin-left: 0; background: var(--violet); }
.ln-avatars i:last-child { background: #e08a2b; }

/* ---------------------------------------------------------- цифры */
.ln-stats {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin-top: -64px;
    padding: 8px;
    border-radius: var(--r-lg);
    background: var(--surface);
    box-shadow: var(--shadow-lg);
}

.ln-stat {
    padding: 22px 26px;
}

.ln-stat + .ln-stat {
    border-left: 1px solid var(--line);
}

.ln-stat b {
    display: block;
    font-family: var(--font-display);
    font-size: 42px;
    line-height: 1;
    letter-spacing: -0.03em;
    background: linear-gradient(120deg, var(--blue), var(--violet));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.ln-stat span {
    display: block;
    margin-top: 8px;
    font-size: 14px;
    line-height: 1.4;
    color: var(--muted);
}

/* ---------------------------------------------------------- разделы */
.ln-sec {
    padding: 110px 0 0;
}

.ln-sec--tint {
    margin-top: 110px;
    padding: 100px 0;
    background:
        radial-gradient(60% 80% at 100% 0%, rgba(124, 92, 245, 0.08), transparent 60%),
        radial-gradient(50% 70% at 0% 100%, rgba(43, 111, 224, 0.08), transparent 60%),
        #eaf0fb;
}

.ln-sec--tint + .ln-sec {
    padding-top: 100px;
}

.ln-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 36px;
}

.ln-head--center {
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.ln-head h2 {
    margin-top: 10px;
    font-size: clamp(30px, 3.6vw, 46px);
}

.ln-head p {
    max-width: 620px;
    margin: 14px 0 0;
    font-size: 17px;
    color: var(--muted);
}

.ln-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--blue);
}

.ln-kicker::before {
    content: "";
    width: 18px;
    height: 3px;
    border-radius: 3px;
    background: linear-gradient(90deg, var(--blue), var(--violet));
}

.ln-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 15px;
    color: var(--blue);
    background: var(--blue-tint);
    white-space: nowrap;
    transition: gap 0.2s ease, background 0.2s ease;
}

.ln-link:hover {
    gap: 12px;
    background: #dde9ff;
}

/* ---------------------------------------------------------- карточки */
.ln-cards {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}

.ln-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--r);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s ease;
}

.ln-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--line-strong);
}

.ln-card__cover {
    position: relative;
    display: block;
    aspect-ratio: 16 / 9.5;
    overflow: hidden;
    background: var(--tint, #eef2fa);
}

.ln-card__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease);
}

.ln-card:hover .ln-card__cover img {
    transform: scale(1.06);
}

.ln-card__flag {
    position: absolute;
    left: 12px;
    top: 12px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 700;
    color: #fff;
    background: rgba(11, 26, 61, 0.78);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.ln-card__body {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
    padding: 16px 18px 16px;
}

.ln-card__title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 17.5px;
    line-height: 1.28;
    color: var(--ink-strong);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ln-card__meta {
    font-size: 13.5px;
    color: var(--muted);
}

.ln-card__foot {
    display: flex;
    gap: 16px;
    margin-top: auto;
    padding-top: 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--soft);
}

.ln-card__foot span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.ln-card__foot span:first-child svg {
    color: var(--gold);
}

/* ---------------------------------------------------------- виды (бенто) */
.ln-bento {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-rows: minmax(220px, auto);
    gap: 20px;
}

.ln-kindcard {
    --c: var(--blue);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 28px;
    border-radius: var(--r-lg);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.ln-kindcard::after {
    content: "";
    position: absolute;
    right: -70px;
    top: -70px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, color-mix(in srgb, var(--c) 18%, transparent), transparent 70%);
    transition: transform 0.6s var(--ease);
}

.ln-kindcard:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.ln-kindcard:hover::after {
    transform: scale(1.4);
}

.ln-kindcard--cdz { --c: var(--mint); }
.ln-kindcard--textbook { --c: #e08a2b; }
.ln-kindcard--test { --c: var(--violet); }
.ln-kindcard--app { --c: #e0457b; }

.ln-kindcard--lesson {
    grid-row: span 2;
    color: #fff;
    background:
        radial-gradient(90% 60% at 100% 0%, rgba(124, 92, 245, 0.55), transparent 60%),
        linear-gradient(160deg, #1a3a86, var(--navy));
    border-color: transparent;
}

.ln-kindcard--lesson h3,
.ln-kindcard--lesson .ln-kindcard__go {
    color: #fff;
}

.ln-kindcard--lesson p {
    color: rgba(220, 230, 255, 0.8);
}

.ln-kindcard__ic {
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    color: #fff;
    background: var(--c);
    box-shadow: 0 12px 24px color-mix(in srgb, var(--c) 35%, transparent);
}

.ln-kindcard--lesson .ln-kindcard__ic {
    background: rgba(255, 255, 255, 0.14);
    box-shadow: none;
}

.ln-kindcard__count {
    position: absolute;
    right: 26px;
    top: 22px;
    font-family: var(--font-display);
    font-size: 40px;
    font-weight: 700;
    line-height: 1;
    color: color-mix(in srgb, var(--c) 28%, transparent);
}

.ln-kindcard--lesson .ln-kindcard__count {
    color: rgba(255, 255, 255, 0.22);
}

.ln-kindcard h3 {
    margin-top: 8px;
    font-size: 22px;
}

.ln-kindcard p {
    margin: 0;
    font-size: 15px;
    color: var(--muted);
}

.ln-kindcard__go {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    padding-top: 8px;
    font-size: 14.5px;
    font-weight: 700;
    color: var(--c);
    transition: gap 0.2s ease;
}

.ln-kindcard:hover .ln-kindcard__go {
    gap: 10px;
}

/* Мини-схема хода урока в большой карточке */
.ln-flow {
    display: grid;
    gap: 8px;
    margin: 18px 0 6px;
}

.ln-flow span {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14.5px;
    font-weight: 600;
}

.ln-flow i {
    display: grid;
    place-items: center;
    width: 26px;
    height: 26px;
    border-radius: 8px;
    font-style: normal;
    font-size: 12.5px;
    font-weight: 800;
    background: rgba(255, 255, 255, 0.16);
}

.ln-flow em {
    margin-left: auto;
    font-style: normal;
    font-size: 12.5px;
    color: rgba(220, 230, 255, 0.65);
}

.ln-flow span:nth-child(3) {
    background: rgba(242, 182, 53, 0.16);
    border-color: rgba(242, 182, 53, 0.35);
}

/* ---------------------------------------------------------- предметы */
.ln-subjects {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 16px;
}

.ln-subject {
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto auto;
    column-gap: 16px;
    align-items: center;
    padding: 18px 20px;
    border-radius: var(--r);
    background: var(--surface);
    border: 1px solid var(--line);
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s ease;
}

.ln-subject:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: hsl(var(--h) 70% 70% / 0.6);
}

.ln-subject__mono {
    grid-row: span 2;
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: hsl(var(--h) 65% 42%);
    background: hsl(var(--h) 90% 95%);
}

.ln-subject__name {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    color: var(--ink-strong);
    line-height: 1.2;
}

.ln-subject__count {
    font-size: 13.5px;
    color: var(--muted);
}

/* ---------------------------------------------------------- роли */
.ln-roles {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.ln-role {
    --c: var(--blue);
    padding: 30px 28px;
    border-radius: var(--r-lg);
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--c);
}

.ln-role--student { --c: var(--mint); }
.ln-role--methodist { --c: var(--violet); }

.ln-role__ic {
    display: grid;
    place-items: center;
    width: 56px;
    height: 56px;
    border-radius: 18px;
    color: var(--c);
    background: color-mix(in srgb, var(--c) 12%, #fff);
}

.ln-role h3 {
    margin-top: 20px;
    font-size: 23px;
}

.ln-role ul {
    display: grid;
    gap: 10px;
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
}

.ln-role li {
    position: relative;
    padding-left: 28px;
    font-size: 15px;
    color: var(--muted);
}

.ln-role li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 3px;
    width: 18px;
    height: 18px;
    border-radius: 6px;
    background: color-mix(in srgb, var(--c) 14%, #fff)
        url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23384a6e' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><path d='m6 12.5 4 4 8-9'/></svg>") center / 12px no-repeat;
}

/* ---------------------------------------------------------- шаги */
.ln-steps {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 48px;
    align-items: center;
    padding: 56px;
    border-radius: 36px;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
}

.ln-steps__head h2 {
    margin-top: 12px;
    font-size: clamp(28px, 3.2vw, 40px);
}

.ln-steps ol {
    display: grid;
    gap: 14px;
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: step;
}

.ln-steps li {
    counter-increment: step;
    display: grid;
    grid-template-columns: 56px 1fr;
    column-gap: 18px;
    align-items: center;
    padding: 18px 22px 18px 18px;
    border-radius: 20px;
    background: #f4f7fd;
}

.ln-steps li::before {
    content: counter(step);
    grid-row: span 2;
    display: grid;
    place-items: center;
    width: 56px;
    height: 56px;
    border-radius: 18px;
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--blue-bright), var(--violet));
    box-shadow: 0 10px 22px rgba(79, 99, 240, 0.3);
}

.ln-steps li b {
    font-family: var(--font-display);
    font-size: 19px;
    color: var(--ink-strong);
}

.ln-steps li span {
    font-size: 15px;
    color: var(--muted);
}

/* ---------------------------------------------------------- призыв */
.ln-cta-wrap {
    padding: 110px 0;
}

.ln-cta {
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 40px;
    align-items: center;
    padding: 60px;
    border-radius: 40px;
    color: #fff;
    background:
        radial-gradient(70% 90% at 0% 100%, rgba(124, 92, 245, 0.55), transparent 60%),
        radial-gradient(60% 80% at 100% 0%, rgba(79, 151, 255, 0.5), transparent 60%),
        linear-gradient(150deg, var(--navy-2), var(--navy));
    box-shadow: var(--shadow-lg);
}

.ln-cta__art {
    position: relative;
    height: 260px;
}

.ln-cta__art span {
    position: absolute;
    width: 62%;
    aspect-ratio: 16 / 9;
    border-radius: 18px;
    overflow: hidden;
    background: var(--tint, #eef2fa);
    box-shadow: 0 26px 50px rgba(3, 10, 30, 0.45);
    transition: transform 0.5s var(--ease);
}

.ln-cta__art span:nth-child(1) { left: 0; top: 10px; transform: rotate(-8deg); }
.ln-cta__art span:nth-child(2) { left: 22%; top: 60px; transform: rotate(3deg); z-index: 1; }
.ln-cta__art span:nth-child(3) { left: 38%; top: 0; transform: rotate(10deg); }

.ln-cta:hover .ln-cta__art span:nth-child(1) { transform: rotate(-12deg) translateX(-10px); }
.ln-cta:hover .ln-cta__art span:nth-child(3) { transform: rotate(14deg) translateX(10px); }

.ln-cta__art img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ln-cta h2 {
    color: #fff;
    font-size: clamp(30px, 3.4vw, 44px);
}

.ln-cta p {
    margin: 16px 0 0;
    font-size: 17px;
    color: rgba(220, 230, 255, 0.82);
}

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

/* ---------------------------------------------------------- подвал */
.ln-foot {
    padding: 34px 0 40px;
    border-top: 1px solid var(--line);
}

.ln-foot__in {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px 32px;
}

.ln-brand--foot {
    color: var(--ink-strong);
}

.ln-brand--foot .ln-brand__mark {
    width: 36px;
    height: 36px;
    border-radius: 11px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--line);
}

.ln-brand--foot .ln-brand__text small {
    color: var(--muted);
}

.ln-foot nav {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 22px;
    font-size: 14.5px;
    font-weight: 600;
    color: var(--muted);
}

.ln-foot nav a:hover {
    color: var(--blue);
}

.ln-foot__copy {
    margin-left: auto;
    font-size: 13.5px;
    color: var(--soft);
}

/* ---------------------------------------------------------- появление при прокрутке
   Только при включённом JS: без него всё видно сразу. */
.js .ln-rv {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
    transition-delay: calc(var(--d, 0) * 70ms);
}

.js .ln-rv.is-in {
    opacity: 1;
    transform: none;
}

/* у карточек свой transform при наведении — после появления возвращаем им быстрый переход */
.js .ln-card.ln-rv.is-in,
.js .ln-kindcard.ln-rv.is-in,
.js .ln-subject.ln-rv.is-in {
    transition: opacity 0.7s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s ease;
    transition-delay: 0s;
}

/* ---------------------------------------------------------- адаптив */
@media (max-width: 1100px) {
    .ln-cards {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .ln-float {
        width: 260px;
    }

    .ln-float--2 {
        width: 230px;
    }
}

@media (max-width: 960px) {
    .ln-nav {
        display: none;
    }

    .ln-top__in > .ln-btn {
        margin-left: auto;
    }

    .ln-hero {
        padding: 120px 0 120px;
        border-radius: 0 0 32px 32px;
    }

    .ln-hero__in {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .ln-stage {
        height: 360px;
        max-width: 560px;
        width: 100%;
        margin-inline: auto;
    }

    .ln-float {
        width: 240px;
    }

    .ln-float--2 {
        width: 210px;
    }

    .ln-badge--class {
        left: 0;
        bottom: 20px;
    }

    .ln-badge--check {
        right: 0;
    }

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

    .ln-stat:nth-child(3) {
        border-left: 0;
    }

    .ln-stat:nth-child(n + 3) {
        border-top: 1px solid var(--line);
    }

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

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

    .ln-kindcard--lesson {
        grid-column: span 2;
        grid-row: auto;
    }

    .ln-roles {
        grid-template-columns: 1fr;
    }

    .ln-steps,
    .ln-cta {
        grid-template-columns: 1fr;
        padding: 36px 28px;
        gap: 28px;
    }

    .ln-cta__art {
        height: 200px;
        max-width: 440px;
    }

    .ln-sec {
        padding-top: 80px;
    }

    .ln-sec--tint {
        margin-top: 80px;
        padding: 72px 0;
    }

    .ln-cta-wrap {
        padding: 80px 0;
    }
}

@media (max-width: 600px) {
    .ln-wrap {
        width: min(100% - 32px, var(--wrap));
    }

    .ln-top__in {
        height: 64px;
    }

    .ln-brand__mark {
        width: 38px;
        height: 38px;
    }

    .ln-brand__mark img {
        width: 22px;
        height: 22px;
    }

    .ln-hero {
        padding: 100px 0 100px;
    }

    .ln-lead {
        font-size: 16.5px;
    }

    .ln-search {
        padding-left: 14px;
    }

    .ln-search > svg {
        display: none;
    }

    .ln-search button {
        padding: 0 18px;
    }

    .ln-stage {
        height: 300px;
    }

    .ln-float {
        width: 200px;
        border-radius: 18px;
    }

    .ln-float--2 {
        width: 180px;
    }

    .ln-float--3 {
        left: 14%;
    }

    .ln-float__body {
        padding: 10px 12px 12px;
    }

    .ln-float__body b {
        font-size: 14.5px;
    }

    .ln-badge {
        padding: 9px 12px 9px 9px;
        gap: 9px;
    }

    .ln-badge small {
        display: none;
    }

    .ln-badge__ic {
        width: 30px;
        height: 30px;
    }

    .ln-avatars i {
        width: 26px;
        height: 26px;
        font-size: 9.5px;
    }

    .ln-stats {
        margin-top: -50px;
    }

    .ln-stat {
        padding: 16px 16px;
    }

    .ln-stat b {
        font-size: 32px;
    }

    .ln-stat span {
        font-size: 13px;
    }

    .ln-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .ln-head--center {
        align-items: center;
    }

    .ln-cards {
        grid-template-columns: 1fr;
    }

    .ln-bento {
        grid-template-columns: 1fr;
    }

    .ln-kindcard--lesson {
        grid-column: auto;
    }

    .ln-kindcard {
        padding: 24px;
    }

    .ln-steps li {
        grid-template-columns: 46px 1fr;
        column-gap: 14px;
    }

    .ln-steps li::before {
        width: 46px;
        height: 46px;
        font-size: 20px;
        border-radius: 14px;
    }

    .ln-cta {
        border-radius: 28px;
    }

    .ln-foot__copy {
        margin-left: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ln-orb,
    .ln-float,
    .ln-badge,
    .ln-pill__dot {
        animation: none;
    }

    .ln-float {
        transform: rotate(var(--rot));
    }

    html {
        scroll-behavior: auto;
    }
}