/* ===== ДОРОЖКА УРОВНЕЙ (learn-english.html и т.д.) ===== */
.path-page {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    padding: 20px 20px 60px 20px;
    box-sizing: border-box;
}

body.path-page-body .path-page {
    padding-bottom: 126px;
}

body.path-page-body .bottom-nav {
    left: 50%;
    right: auto;
    bottom: 14px;
    width: calc(100% - 32px);
    max-width: 420px;
    transform: translateX(-50%);
    z-index: 100;
    border: 1px solid var(--gold-dim);
    border-radius: 22px;
    background-color: rgba(13, 13, 13, 0.82);
    backdrop-filter: blur(14px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    padding: 10px 6px;
}

body.path-page-body .nav-btn {
    position: relative;
    font-family: var(--font-body);
    font-weight: 600;
}

body.path-page-body .nav-btn.active::before {
    content: "";
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 3px;
    border-radius: 2px;
    background: var(--gold);
    box-shadow: 0 0 8px var(--gold);
}

@media (max-width: 380px) {
    body.path-page-body .bottom-nav { width: calc(100% - 20px); }
}

body.path-page-body .scroll-jump-btn {
    bottom: 96px;
}

.path-header {
    text-align: center;
    margin-bottom: 20px;
    position: relative;
}

.path-header h1 {
    color: #FFD700;
    font-size: 26px;
    margin: 0;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

.path-header .back-btn {
    position: absolute;
    left: 0;
    top: 0;
}

.path-track {
    position: relative;
    max-width: 340px;
    margin: 0 auto;
}

.path-line {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

.level-node {
    position: absolute;
    z-index: 2;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #fff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.15s;
}

.level-mascot {
    position: absolute;
    z-index: 4;
    width: min(44vw, 160px);
    max-width: 48%;
    height: auto;
    object-fit: contain;
    transform: translateY(-50%);
    pointer-events: none;
}

.level-mascot-calendar {
    width: min(30vw, 110px);
}

.level-node.active {
    color: #FFD700;
    box-shadow: 0 0 0 5px rgba(255, 215, 0, 0.25), 0 0 25px rgba(255, 215, 0, 0.5);
}

.level-node.active:hover {
    transform: scale(1.06);
}

.level-node.locked {
    background-color: #d9d9d9;
    color: #999;
    cursor: not-allowed;
}
body.scroll-page {
    overflow-y: auto;
    height: auto;
    min-height: 100vh;
}
.jump-wrapper {
    position: absolute;
    z-index: 3;
    transform: translateX(-50%);
}
.jump-label {
    background-color: #111;
    border: 2px solid var(--milestone-color);
    color: var(--milestone-color);
    font-size: 12px;
    font-weight: bold;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    white-space: nowrap;
    text-transform: uppercase;
}

.jump-label:hover {
    background-color: var(--milestone-color);
    color: #111;
}
.level-node.milestone {
    background-color: #d9d9d9;
}
.level-node.milestone.locked {
    background-color: var(--milestone-color);
    color: #fff;
    opacity: 0.85;
}

.level-node.milestone.active {
    background-color: var(--milestone-color);
    color: #fff;
    box-shadow: 0 0 0 5px color-mix(in srgb, var(--milestone-color) 25%, transparent), 
                0 0 25px color-mix(in srgb, var(--milestone-color) 50%, transparent);
}

/* ===== ЗАГОЛОВОК РАЗДЕЛА (unit banner) — блёклая подпись на дорожке,
   без фонового "кнопочного" блока. Активный/актуальный вид живёт в .unit-pill наверху. ===== */
.unit-header {
    position: absolute;
    left: 0;
    width: 100%;
    box-sizing: border-box;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 10px 22px;
    gap: 2px;
}

.unit-header-eyebrow {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.4px;
    color: var(--milestone-color);
    opacity: 0.55;
}

.unit-header-title {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--milestone-color);
    opacity: 0.45;
}

/* ===== ПЛАШКА ТЕКУЩЕГО РАЗДЕЛА (как в Duolingo) — прилипает под шапкой
   и меняет цвет/название по мере скролла дорожки ===== */
.unit-pill {
    position: sticky;
    z-index: 90;
    max-width: 340px;
    margin: 0 auto 14px;
    padding: 10px 18px;
    border-radius: 14px;
    background-color: var(--milestone-color, #FFD700);
    color: #fff;
    text-align: center;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
    transition: background-color 0.35s ease, box-shadow 0.35s ease,
                opacity 0.25s ease, transform 0.25s ease;
    opacity: 0;
    transform: translateY(-6px);
    pointer-events: none;
}
.unit-pill.visible {
    opacity: 1;
    transform: translateY(0);
}
.unit-pill-eyebrow {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    opacity: 0.85;
}
.unit-pill-title {
    font-size: 15px;
    font-weight: 700;
    margin-top: 3px;
    line-height: 1.3;
}
/* ===== СТРАНИЦА УРОКА (lesson1.html и т.д.) ===== */
.lesson-body {
    background-color: #000;
    color: #fff;
    min-height: 100vh;
    min-height: 100dvh;
    margin: 0;
    display: flex;
    flex-direction: column;
    font-family: Arial, sans-serif;
    overflow-y: auto;
}

.lesson-top {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
}

.lesson-close {
    background: none;
    border: none;
    color: #888;
    font-size: 22px;
    cursor: pointer;
}

.lesson-close:hover {
    color: #fff;
}

.progress-bar-outer {
    flex: 1;
    height: 12px;
    background-color: #222;
    border-radius: 6px;
    overflow: hidden;
}

.progress-bar-inner {
    height: 100%;
    background-color: #FFD700;
    width: 0%;
    transition: width 0.3s ease;
}

.hearts {
    font-size: 16px;
    white-space: nowrap;
}

.lesson-body-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.lesson-instruction {
    color: #FFD700;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.lesson-sentence {
    font-size: 26px;
    font-weight: bold;
    margin-bottom: 30px;
}

.answer-area {
    min-height: 50px;
    border-bottom: 2px solid #333;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding-bottom: 16px;
    margin-bottom: 30px;
}

.word-bank {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.word-tile {
    background-color: #111;
    border: 1px solid #FFD700;
    color: #fff;
    padding: 12px 18px;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
    transition: opacity 0.15s, transform 0.1s;
}

.word-tile:hover:not(:disabled) {
    background-color: rgba(255, 215, 0, 0.1);
}

.word-tile:active:not(:disabled) {
    transform: scale(0.95);
}

.word-tile.used {
    opacity: 0.2;
    cursor: default;
}

.word-tile.selected {
    background-color: #FFD700;
    color: #000;
    border-color: #FFD700;
}

.lesson-footer {
    position: sticky;
    bottom: 0;
    background-color: #000;
    padding: 20px;
    padding-bottom: calc(20px + env(safe-area-inset-bottom));
    border-top: 1px solid #222;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.check-btn {
    background-color: #FFD700;
    color: #000;
    border: none;
    padding: 14px 32px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    text-transform: uppercase;
}

.check-btn.disabled {
    background-color: #333;
    color: #777;
    cursor: not-allowed;
}

.feedback-correct {
    background-color: rgba(102, 187, 106, 0.15);
    justify-content: space-between;
}

.feedback-wrong {
    background-color: rgba(239, 83, 80, 0.15);
    justify-content: space-between;
}

.feedback-text {
    font-size: 20px;
    font-weight: bold;
    margin: 0;
}

.feedback-correct .feedback-text {
    color: #66BB6A;
}

.feedback-wrong .feedback-text {
    color: #EF5350;
}

.next-correct {
    background-color: #66BB6A;
    color: #fff;
}

.next-wrong {
    background-color: #EF5350;
    color: #fff;
}

.lesson-complete {
    text-align: center;
    margin: auto;
}

.lesson-complete h1 {
    color: #FFD700;
    font-size: 28px;
}
.hint-word {
    cursor: pointer;
    border-bottom: 2px dotted #FFD700;
    transition: color 0.15s;
}

.hint-word:hover {
    color: #FFD700;
}

.word-hint {
    position: fixed;
    z-index: 999;
    background-color: #FFD700;
    color: #000;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: bold;
    white-space: nowrap;
    pointer-events: none;
}

.feedback-block {
    display: flex;
    flex-direction: column;
}

.feedback-correct-answer {
    color: #fff;
    font-size: 14px;
    margin: 4px 0 0 0;
}

.reward-text {
    font-size: 32px;
    font-weight: bold;
    color: #FFD700;
    margin-top: 16px;
}

.reward-text .dollar {
    color: #FFD700;
}
.sentence-row {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 30px;
}

.sound-btn {
    background-color: #111;
    border: 1px solid #FFD700;
    color: #FFD700;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color 0.2s, transform 0.15s;
}

.sound-btn:hover {
    background-color: rgba(255, 215, 0, 0.1);
}

.sound-btn:active {
    transform: scale(0.92);
}

.lesson-sentence {
    margin: 0;
}

/* ======================================================================
   ДОРОЖКА УРОВНЕЙ — премиум-версия (learn-russian.html, learn-english.html,
   learn-german.html), в стиле главной/логина/учёбы
   ====================================================================== */
body.path-page-body {
    --gold: #FFD700;
    --gold-soft: rgba(255, 215, 0, 0.35);
    --gold-dim: rgba(255, 215, 0, 0.16);
    --cyan-soft: rgba(56, 189, 248, 0.32);
    --glass: rgba(255, 255, 255, 0.06);
    --font-display: 'Orbitron', 'Segoe UI', Arial, sans-serif;
    --font-body: 'Rajdhani', 'Segoe UI', Arial, sans-serif;
    background: radial-gradient(circle at 50% 15%, #14161c 0%, #05060a 70%);
    font-family: var(--font-body);
}

body.path-page-body .home-aurora {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}
body.path-page-body .home-aurora::before,
body.path-page-body .home-aurora::after {
    content: "";
    position: absolute;
    width: 60vmax;
    height: 60vmax;
    border-radius: 50%;
    filter: blur(70px);
    opacity: 0.3;
    animation: homeAuroraDrift 18s ease-in-out infinite alternate;
}
body.path-page-body .home-aurora::before {
    top: -22%;
    left: -16%;
    background: radial-gradient(circle, var(--gold-soft), transparent 65%);
}
body.path-page-body .home-aurora::after {
    bottom: -30%;
    right: -18%;
    background: radial-gradient(circle, var(--cyan-soft), transparent 65%);
    animation-delay: -9s;
}

body.path-page-body .path-page {
    position: relative;
    z-index: 2;
    padding: 18px 16px 70px;
}

/* Шапка: стеклянная плавающая панель, прилипает к верху при скролле */
body.path-page-body .path-header {
    position: sticky;
    top: 12px;
    z-index: 100;
    margin: 0 auto 26px;
    max-width: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 18px;
    border-radius: 20px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
    border: 1px solid var(--gold-dim);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
    animation: homeFadeInUp 0.6s ease both;
}

body.path-page-body .path-header h1 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(18px, 4.6vw, 22px);
    color: var(--gold);
    text-shadow: 0 0 16px var(--gold-soft);
    margin: 0;
    letter-spacing: 0.3px;
}

body.path-page-body .path-header .back-btn {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    margin: 0;
    width: auto;
    background: var(--glass);
    border: 1px solid var(--gold-dim);
    color: var(--gold);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 13px;
    padding: 9px 14px;
    border-radius: 12px;
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
    transition: transform 0.2s ease, box-shadow 0.25s ease, border-color 0.25s ease, background 0.2s ease;
}
body.path-page-body .path-header .back-btn:hover {
    transform: translateY(-50%) translateY(-2px) scale(1.05);
    border-color: var(--gold);
    background: rgba(255, 215, 0, 0.08);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4), 0 0 14px var(--gold-soft);
}

body.path-page-body .path-track {
    max-width: 340px;
    animation: homeFadeInUp 0.6s ease 0.05s both;
}

/* Пунктирная линия пути рисуется через JS (stroke="#FFD700" инлайном) —
   добавляем лишь мягкое сияние вокруг svg */
body.path-page-body .path-line {
    filter: drop-shadow(0 0 6px rgba(255, 215, 0, 0.25));
}

body.path-page-body .level-node {
    background: linear-gradient(180deg, #232530, #14151b);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.5);
    transition: transform 0.2s ease, box-shadow 0.25s ease;
}

body.path-page-body .level-node.active {
    background: linear-gradient(145deg, #ffe477, var(--gold) 55%, #caa300);
    color: #201900;
    box-shadow: 0 0 0 5px var(--gold-dim), 0 0 26px var(--gold-soft), 0 8px 18px rgba(0, 0, 0, 0.45);
    animation: pathNodeGlow 2.6s ease-in-out infinite;
}
body.path-page-body .level-node.active:hover {
    transform: scale(1.08);
}

body.path-page-body .level-node.locked {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #6b6b74;
    backdrop-filter: blur(6px);
    box-shadow: inset 0 0 14px rgba(0, 0, 0, 0.4);
}

body.path-page-body .level-node.milestone {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
}
body.path-page-body .level-node.milestone.locked {
    background: linear-gradient(145deg, var(--milestone-color), color-mix(in srgb, var(--milestone-color) 60%, #000));
    color: #fff;
    border: none;
    opacity: 0.92;
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--milestone-color) 18%, transparent), 0 6px 16px rgba(0, 0, 0, 0.45);
}
body.path-page-body .level-node.milestone.active {
    background: linear-gradient(145deg, var(--milestone-color), color-mix(in srgb, var(--milestone-color) 65%, #000));
    box-shadow: 0 0 0 5px color-mix(in srgb, var(--milestone-color) 25%, transparent),
                0 0 28px color-mix(in srgb, var(--milestone-color) 55%, transparent),
                0 8px 18px rgba(0, 0, 0, 0.45);
    animation: pathMilestoneGlow 2.6s ease-in-out infinite;
}

@keyframes pathNodeGlow {
    0%, 100% { box-shadow: 0 0 0 5px var(--gold-dim), 0 0 22px var(--gold-soft), 0 8px 18px rgba(0, 0, 0, 0.45); }
    50%      { box-shadow: 0 0 0 6px var(--gold-dim), 0 0 32px var(--gold-soft), 0 8px 18px rgba(0, 0, 0, 0.45); }
}
@keyframes pathMilestoneGlow {
    0%, 100% { filter: brightness(1); }
    50%      { filter: brightness(1.18); }
}

body.path-page-body .unit-header-eyebrow {
    font-family: var(--font-body);
}
body.path-page-body .unit-header-title {
    font-family: var(--font-display);
}

body.path-page-body .unit-pill {
    background: linear-gradient(145deg, var(--milestone-color), color-mix(in srgb, var(--milestone-color) 60%, #000));
    border: 1px solid color-mix(in srgb, var(--milestone-color) 45%, transparent);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.45),
                0 0 22px color-mix(in srgb, var(--milestone-color) 35%, transparent);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
body.path-page-body .unit-pill-eyebrow {
    font-family: var(--font-body);
    color: rgba(255, 255, 255, 0.88);
}
body.path-page-body .unit-pill-title {
    font-family: var(--font-display);
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
}

/* ===== КНОПКА "К ТЕКУЩЕМУ УРОВНЮ" — плавающая стрелка снизу справа.
   Смотрит вверх, если текущий уровень выше по дорожке (надо листать вверх),
   и вниз, если он ниже (надо листать вниз). Скрыта, когда уровень и так виден. ===== */
.scroll-jump-btn {
    position: fixed;
    right: 20px;
    bottom: 26px;
    z-index: 95;
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: #fff;
    color: #333;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}
.scroll-jump-btn.visible {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}
.scroll-jump-btn:hover {
    transform: scale(1.07);
}
.scroll-jump-btn svg {
    transition: transform 0.25s ease;
}
.scroll-jump-btn.point-down svg {
    transform: rotate(180deg);
}

body.path-page-body .scroll-jump-btn {
    background: linear-gradient(145deg, #ffe477, var(--gold) 55%, #caa300);
    color: #201900;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.45), 0 0 18px var(--gold-soft);
}
body.path-page-body .scroll-jump-btn:hover {
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.5), 0 0 22px var(--gold-soft);
}

body.path-page-body .jump-label {
    background: rgba(10, 10, 16, 0.75);
    backdrop-filter: blur(8px);
    border-width: 2px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
    font-family: var(--font-body);
    letter-spacing: 0.6px;
    transition: transform 0.15s ease, background-color 0.2s ease, color 0.2s ease;
}
body.path-page-body .jump-label:hover {
    transform: scale(1.05);
}

body.path-page-body .legal-footer {
    position: relative;
    z-index: 2;
    font-family: var(--font-body);
}
body.path-page-body .legal-footer a:hover {
    color: var(--gold);
}

@media (max-width: 380px) {
    body.path-page-body .path-header { margin-bottom: 20px; padding: 12px 16px; }
}

/* ======================================================================
   СТРАНИЦА УРОКА — премиум-версия (lesson.html), в стиле главной/логина
   ====================================================================== */
body.lesson-page-body {
    --gold: #FFFFFF;
    --gold-soft: rgba(255, 255, 255, 0.3);
    --gold-dim: rgba(255, 255, 255, 0.16);
    --cyan-soft: rgba(56, 189, 248, 0.32);
    --selected-answer-background: linear-gradient(135deg, #49b6e9 0%, #2396cc 52%, #0b43fd 100%);
    --glass: rgba(255, 255, 255, 0.06);
    --font-display: 'Orbitron', 'Segoe UI', Arial, sans-serif;
    --font-body: 'Rajdhani', 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(180deg, #07090E 0%, #05080f 60%, #091326 70%, #102B56 80%, #1B4F8A 92%, #286A9D 100%) !important;
    font-family: var(--font-body);
}

body.lesson-page-body .home-aurora {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
body.lesson-page-body .home-aurora::before,
body.lesson-page-body .home-aurora::after {
    content: "";
    position: absolute;
    width: 60vmax;
    height: 60vmax;
    border-radius: 50%;
    filter: blur(70px);
    opacity: 0.25;
    animation: homeAuroraDrift 18s ease-in-out infinite alternate;
}
body.lesson-page-body .home-aurora::before {
    top: -24%;
    left: -18%;
    background: radial-gradient(circle, rgba(28, 91, 145, 0.2), transparent 65%);
}
body.lesson-page-body .home-aurora::after {
    display: none;
}

body.lesson-page-body .lesson-top,
body.lesson-page-body .lesson-body-content,
body.lesson-page-body .lesson-footer {
    position: relative;
    z-index: 2;
}

body.lesson-page-body .lesson-top {
    isolation: isolate;
    background: linear-gradient(180deg, rgba(10, 10, 16, 0.7), rgba(10, 10, 16, 0.35));
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--gold-dim);
    padding: 16px 18px;
}
body.lesson-page-body .lesson-top::after {
    content: "";
    position: absolute;
    z-index: 2;
    top: -34px;
    left: 50%;
    width: 100%;
    height: 190px;
    transform: translateX(-50%);
    background: radial-gradient(ellipse 100% 70% at 50% 0%, rgba(255, 255, 255, 0.2), transparent 100%);
    pointer-events: none;
}
body.lesson-page-body .lesson-top > * {
    position: relative;
    z-index: 3;
}

body.lesson-page-body .lesson-close {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass);
    border: 1px solid rgba(255, 255, 255, 0.12);
    transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}
body.lesson-page-body .lesson-close:hover {
    border-color: var(--gold-dim);
    color: var(--gold);
    transform: scale(1.08);
}

body.lesson-page-body .progress-bar-outer {
    height: 10px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: inset 0 0 8px rgba(0, 0, 0, 0.5);
}
body.lesson-page-body .progress-bar-inner {
    position: relative;
    background: linear-gradient(90deg, #FFFFFF, #E8F3FF 70%, #B9D8FF);
    box-shadow: 0 0 12px var(--gold-soft);
    overflow: hidden;
}
body.lesson-page-body .progress-bar-inner::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.65), transparent);
    transform: translateX(-100%) skewX(-20deg);
    animation: lessonProgressShine 2.6s ease-in-out infinite;
}
@keyframes lessonProgressShine {
    0%   { transform: translateX(-120%) skewX(-20deg); }
    60%, 100% { transform: translateX(220%) skewX(-20deg); }
}

body.lesson-page-body .hearts {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--gold);
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    text-shadow: 0 0 8px var(--gold-soft);
    animation: lessonHeartBeat 1.8s ease-in-out infinite;
}
@keyframes lessonHeartBeat {
    0%, 100% { transform: scale(1); }
    50%      { transform: scale(1.12); }
}

body.lesson-page-body .lesson-body-content {
    padding: 26px 20px 20px;
}

body.lesson-page-body .lesson-instruction {
    font-family: var(--font-body);
    font-weight: 700;
    color: var(--gold);
    letter-spacing: 1.5px;
    text-shadow: 0 0 10px var(--gold-soft);
    animation: homeFadeInUp 0.5s ease both;
}

body.lesson-page-body .sentence-row {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015));
    border: 1px solid var(--gold-dim);
    border-radius: 18px;
    padding: 18px 18px;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.4);
    animation: homeFadeInUp 0.55s ease 0.05s both;
}

body.lesson-page-body .lesson-sentence {
    min-width: 0;
    flex: 1;
    font-size: clamp(12px, 6vw, 26px);
    line-height: 1.2;
    font-family: var(--font-display);
    font-weight: 700;
    letter-spacing: 0.2px;
    white-space: nowrap;
    overflow: hidden;
}

body.lesson-page-body .sound-btn {
    background: linear-gradient(180deg, rgba(62, 177, 255, 0.24), rgba(8, 87, 219, 0.12));
    border-color: rgba(105, 198, 255, 0.88);
    color: #8EDCFF;
    box-shadow: 0 0 0 1px rgba(91, 178, 255, 0.42), 0 0 16px rgba(0, 119, 255, 0.3), 0 6px 16px rgba(0, 0, 0, 0.35);
    transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
}
body.lesson-page-body .sound-btn:hover {
    background: linear-gradient(180deg, rgba(78, 190, 255, 0.34), rgba(8, 87, 219, 0.2));
    box-shadow: 0 0 0 1px #8EDCFF, 0 0 20px rgba(0, 145, 255, 0.48);
}

body.lesson-page-body .listen-btn {
    background: rgba(0, 0, 0, 0.18);
    border-color: rgba(255, 255, 255, 0.78);
    color: #E6EAF0;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.38), 0 0 16px rgba(255, 255, 255, 0.22), 0 6px 16px rgba(0, 0, 0, 0.35);
}
body.lesson-page-body .listen-btn:hover {
    background: rgba(0, 0, 0, 0.12);
    border-color: #FFFFFF;
    color: #FFFFFF;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.56), 0 0 20px rgba(255, 255, 255, 0.32);
}

body.lesson-page-body .answer-area {
    border: 1px dashed var(--gold-dim);
    border-bottom: 1px dashed var(--gold-dim);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.02);
    padding: 14px 16px;
    animation: homeFadeInUp 0.55s ease 0.1s both;
}

body.lesson-page-body .word-bank {
    animation: homeFadeInUp 0.55s ease 0.15s both;
}

body.lesson-page-body .word-tile {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015));
    border: 1px solid var(--gold-dim);
    font-family: var(--font-body);
    font-weight: 600;
    border-radius: 12px;
    backdrop-filter: blur(8px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
    transition: transform 0.15s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, opacity 0.15s ease;
}
body.lesson-page-body .word-tile:hover:not(:disabled) {
    border-color: var(--gold);
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35), 0 0 12px var(--gold-soft);
}
body.lesson-page-body .word-tile.selected {
    background: var(--selected-answer-background);
    color: #FFFFFF;
    border-color: #6F9FC3;
    box-shadow: 0 5px 14px rgba(0, 15, 40, 0.3), 0 0 8px rgba(40, 106, 157, 0.22);
}

body.lesson-page-body .opt-btn.selected,
body.lesson-page-body .pair-btn.selected {
    background: var(--selected-answer-background);
    border-color: #6F9FC3;
    color: #FFFFFF;
    box-shadow: 0 5px 14px rgba(0, 15, 40, 0.3), 0 0 8px rgba(40, 106, 157, 0.22);
}

body.lesson-page-body .lesson-footer {
    background: linear-gradient(180deg, rgba(6, 77, 255, 0.48), rgba(22, 140, 255, 0.88));
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-top: 1px solid rgba(112, 190, 255, 0.62);
    padding: 18px;
    padding-bottom: calc(18px + env(safe-area-inset-bottom));
}

body.lesson-page-body .check-btn {
    position: relative;
    overflow: hidden;
    background: var(--selected-answer-background);
    color: #FFFFFF;
    font-family: var(--font-display);
    letter-spacing: 0.5px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 15, 40, 0.24), 0 0 0 1px rgba(111, 159, 195, 0.36);
    transition: transform 0.15s ease, box-shadow 0.2s ease;
}
body.lesson-page-body .check-btn:hover:not(.disabled) {
    box-shadow: 0 5px 14px rgba(0, 15, 40, 0.28), 0 0 8px rgba(40, 106, 157, 0.2);
}
body.lesson-page-body .check-btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: -60%;
    width: 40%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.24), transparent);
    transform: skewX(-20deg);
    animation: homeBtnShine 3.4s ease-in-out infinite;
}
body.lesson-page-body .check-btn:active {
    transform: scale(0.96);
}
body.lesson-page-body .check-btn.disabled {
    background: rgba(255, 255, 255, 0.06);
    color: #666;
    box-shadow: none;
}
body.lesson-page-body .check-btn.disabled::after {
    display: none;
}

body.lesson-page-body .feedback-correct,
body.lesson-page-body .feedback-wrong {
    border-radius: 14px;
    padding: 14px 18px;
    backdrop-filter: blur(10px);
}
body.lesson-page-body .feedback-correct {
    background: linear-gradient(180deg, rgba(102, 187, 106, 0.16), rgba(102, 187, 106, 0.045));
    border: 1px solid rgba(102, 187, 106, 0.4);
    box-shadow: 0 0 18px rgba(102, 187, 106, 0.12);
}
body.lesson-page-body .feedback-wrong {
    background: linear-gradient(180deg, rgba(239, 83, 80, 0.16), rgba(239, 83, 80, 0.045));
    border: 1px solid rgba(239, 83, 80, 0.4);
    box-shadow: 0 0 18px rgba(239, 83, 80, 0.12);
}
body.lesson-page-body .feedback-correct .feedback-text {
    color: #83B889;
}
body.lesson-page-body .feedback-wrong .feedback-text {
    color: #D98280;
}
body.lesson-page-body .feedback-text {
    font-family: var(--font-display);
}
body.lesson-page-body .lesson-body-content.lesson-milestone-active {
    position: relative;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
body.lesson-page-body .lesson-body-content.lesson-milestone-active > :not(.lesson-milestone-screen) {
    display: none !important;
}
body.lesson-page-body .lesson-milestone-screen {
    display: flex;
    flex: 1;
    width: 100%;
    min-height: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: clamp(18px, 4vh, 32px);
    text-align: center;
    animation: homeFadeInUp 0.5s ease both;
}
body.lesson-page-body .lesson-milestone-screen img {
    display: block;
    width: min(72vw, 320px);
    max-height: min(46vh, 380px);
    object-fit: contain;
    filter: drop-shadow(0 16px 34px rgba(0, 115, 255, 0.36));
    animation: homeFloat 3.2s ease-in-out infinite;
}
body.lesson-page-body .lesson-milestone-text {
    position: relative;
    width: min(100%, 520px);
    box-sizing: border-box;
    margin: 0;
    padding: 18px 22px;
    border: 1px solid rgba(104, 220, 255, 0.62);
    border-radius: 20px;
    background: linear-gradient(145deg, rgba(19, 110, 211, 0.88), rgba(8, 48, 117, 0.92));
    color: #FFFFFF;
    font: 700 clamp(18px, 5vw, 24px)/1.35 var(--font-body);
    text-align: center;
    overflow-wrap: anywhere;
    box-shadow: 0 12px 34px rgba(0, 48, 150, 0.32), inset 0 1px rgba(255, 255, 255, 0.22);
}
body.lesson-page-body .lesson-milestone-text::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -10px;
    width: 18px;
    height: 18px;
    border-right: 1px solid rgba(104, 220, 255, 0.62);
    border-bottom: 1px solid rgba(104, 220, 255, 0.62);
    background: #0B3C87;
    transform: translateX(-50%) rotate(45deg);
}

body.lesson-page-body .next-correct,
body.lesson-page-body .next-wrong {
    font-family: var(--font-display);
    letter-spacing: 0.4px;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.3);
    transition: transform 0.15s ease;
}
body.lesson-page-body .next-correct {
    background: linear-gradient(135deg, #8be89b, #66BB6A 60%, #3f9a46);
}
body.lesson-page-body .next-wrong {
    background: linear-gradient(135deg, #ff9d9a, #EF5350 60%, #c62f2b);
}
body.lesson-page-body .next-correct:active,
body.lesson-page-body .next-wrong:active {
    transform: scale(0.96);
}

body.lesson-page-body .hint-word {
    border-bottom: 2px dotted var(--gold-dim);
}
body.lesson-page-body .word-hint {
    background: linear-gradient(135deg, #FFFFFF, #E8F3FF 60%, #B9D8FF);
    color: #101827;
    box-shadow: 0 6px 16px rgba(255, 255, 255, 0.22);
    font-family: var(--font-body);
}

body.lesson-page-body .lesson-complete {
    animation: homeFadeInUp 0.6s ease both;
}
body.lesson-page-body .lesson-complete h1 {
    font-family: var(--font-display);
    text-shadow: 0 0 20px var(--gold-soft);
    animation: homeFloat 4s ease-in-out infinite;
}
body.lesson-page-body .reward-text {
    font-family: var(--font-display);
    text-shadow: 0 0 16px var(--gold-soft);
}

body.lesson-page-body .lesson-hearts-over-active {
    min-height: min(60vh, 500px);
    justify-content: center;
    align-items: center;
    display: flex;
}
body.lesson-page-body .lesson-hearts-over-active > :not(.lesson-hearts-over-screen) {
    display: none !important;
}
body.lesson-page-body .lesson-hearts-over-screen {
    display: flex;
    width: min(100%, 500px);
    box-sizing: border-box;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: clamp(24px, 7vw, 42px);
    border: 1px solid rgba(217, 130, 128, 0.35);
    border-radius: 24px;
    background: linear-gradient(155deg, rgba(28, 38, 57, 0.94), rgba(11, 17, 29, 0.96));
    text-align: center;
    box-shadow: 0 18px 48px rgba(0, 0, 0, 0.32), inset 0 1px rgba(255, 255, 255, 0.06);
    animation: homeFadeInUp 0.45s ease both;
}
body.lesson-page-body .lesson-hearts-over-icon {
    font-size: clamp(38px, 12vw, 58px);
    line-height: 1;
    filter: drop-shadow(0 6px 16px rgba(217, 130, 128, 0.24));
    animation: lessonHeartBeat 1.8s ease-in-out infinite;
}
body.lesson-page-body .lesson-hearts-over-title {
    margin: 4px 0 0;
    color: #E5EAF2;
    font: 700 clamp(20px, 5vw, 28px)/1.25 var(--font-display);
}
body.lesson-page-body .lesson-hearts-over-message {
    max-width: 34ch;
    margin: 0;
    color: rgba(229, 234, 242, 0.78);
    font: 600 clamp(16px, 4vw, 19px)/1.45 var(--font-body);
}
body.lesson-page-body .lesson-hearts-over-footer {
    background: linear-gradient(180deg, rgba(9, 19, 38, 0.76), rgba(16, 43, 86, 0.9));
    border-top-color: rgba(111, 159, 195, 0.28);
}
body.lesson-page-body .lesson-hearts-over-back {
    background: var(--selected-answer-background);
}

body.lesson-page-body.lesson-tenth-level {
    --selected-answer-background: linear-gradient(135deg, #d8b4fe 0%, #a855f7 52%, #7e22ce 100%);
    background: linear-gradient(180deg, #07090E 0%, #0b0712 60%, #191026 70%, #35204d 80%, #573773 92%, #754a94 100%) !important;
}
body.lesson-page-body.lesson-tenth-level .home-aurora::before {
    background: radial-gradient(circle, rgba(168, 85, 247, 0.28), transparent 65%);
}
body.lesson-page-body.lesson-tenth-level .progress-bar-inner {
    background: linear-gradient(90deg, #FFFFFF, #F8F1FF 70%, #E9D5FF);
}
body.lesson-page-body.lesson-tenth-level .sound-btn {
    background: linear-gradient(180deg, rgba(216, 180, 254, 0.3), rgba(126, 34, 206, 0.2));
    border-color: rgba(216, 180, 254, 0.92);
    color: #F3E8FF;
    box-shadow: 0 0 0 1px rgba(216, 180, 254, 0.46), 0 0 16px rgba(168, 85, 247, 0.34), 0 6px 16px rgba(0, 0, 0, 0.35);
}
body.lesson-page-body.lesson-tenth-level .sound-btn:hover {
    background: linear-gradient(180deg, rgba(233, 213, 255, 0.38), rgba(126, 34, 206, 0.28));
    box-shadow: 0 0 0 1px #F3E8FF, 0 0 20px rgba(192, 132, 252, 0.54);
}
body.lesson-page-body.lesson-tenth-level .word-tile.selected,
body.lesson-page-body.lesson-tenth-level .opt-btn.selected,
body.lesson-page-body.lesson-tenth-level .pair-btn.selected {
    border-color: #D8B4FE;
    box-shadow: 0 5px 14px rgba(25, 5, 40, 0.3), 0 0 8px rgba(168, 85, 247, 0.34);
}
body.lesson-page-body.lesson-tenth-level .lesson-footer {
    background: linear-gradient(180deg, rgba(107, 47, 150, 0.54), rgba(147, 51, 234, 0.9));
    border-top-color: rgba(216, 180, 254, 0.68);
}
body.lesson-page-body.lesson-tenth-level .check-btn {
    box-shadow: 0 4px 12px rgba(25, 5, 40, 0.28), 0 0 0 1px rgba(216, 180, 254, 0.44);
}
body.lesson-page-body.lesson-tenth-level .check-btn:hover:not(.disabled) {
    box-shadow: 0 5px 14px rgba(25, 5, 40, 0.3), 0 0 8px rgba(168, 85, 247, 0.36);
}
body.lesson-page-body.lesson-tenth-level .lesson-milestone-screen img {
    filter: drop-shadow(0 16px 34px rgba(168, 85, 247, 0.42));
}
body.lesson-page-body.lesson-tenth-level .lesson-milestone-text {
    border-color: rgba(233, 213, 255, 0.72);
    background: linear-gradient(145deg, rgba(126, 50, 180, 0.92), rgba(76, 29, 117, 0.96));
    box-shadow: 0 12px 34px rgba(49, 10, 82, 0.4), inset 0 1px rgba(255, 255, 255, 0.22);
}
body.lesson-page-body.lesson-tenth-level .lesson-milestone-text::after {
    border-color: rgba(233, 213, 255, 0.72);
    background: #5B2A88;
}
body.lesson-page-body.lesson-tenth-level .word-hint {
    background: linear-gradient(135deg, #FFFFFF, #F8F1FF 60%, #E9D5FF);
}
body.lesson-page-body.lesson-tenth-level .lesson-hearts-over-footer {
    background: linear-gradient(180deg, rgba(25, 16, 38, 0.8), rgba(53, 32, 77, 0.92));
    border-top-color: rgba(216, 180, 254, 0.36);
}