/* СТИЛИ ЛЕНДИНГА */

/* Герой секция */
.hero {
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-surface-alt) 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero__container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero__content {
    max-width: 500px;
}

.hero__badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--color-accent-soft);
    color: var(--color-accent-dark);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero__title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-text);
    margin-bottom: 20px;
}

.hero__title-accent {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.2rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 32px;
}

.hero__stats {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
}

.stat {
    text-align: center;
}

.stat__number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 4px;
}

.stat__label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    line-height: 1.3;
}

.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Визуальная часть героя */
.hero__visual {
    position: relative;
    height: 400px;
}

.hero__card {
    position: absolute;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.hero__card--main {
    width: 280px;
    height: 160px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
}

.hero__card--floating {
    width: 140px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__card--1 {
    top: 20%;
    right: 10%;
    animation: float 3s ease-in-out infinite;
}

.hero__card--2 {
    bottom: 30%;
    left: 5%;
    animation: float 3s ease-in-out infinite 1s;
}

.hero__card--3 {
    top: 60%;
    right: 20%;
    animation: float 3s ease-in-out infinite 0.5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-card {
    padding: 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hero-card__header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.hero-card__level {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
}

.hero-card__status {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.hero-card__progress-bar {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}

.hero-card__progress-fill {
    height: 100%;
    background: var(--color-accent);
    border-radius: 4px;
    transition: width 0.8s ease;
}

.hero-card__progress-text {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.floating-card {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
}

.floating-card__icon {
    font-size: 1.2rem;
}

.floating-card__text {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text);
}

/* Секция CEFR тестирования */
.cefr-test {
    padding: 80px 0;
    background: var(--color-surface);
}

.cefr-test__container {
    max-width: 1200px;
    margin: 0 auto;
}

.cefr-test__header {
    text-align: center;
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cefr-test__title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
}

.cefr-test__subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.cefr-test__content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 60px;
    align-items: start;
}

.cefr-features {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.cefr-feature {
    display: flex;
    gap: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.cefr-feature.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.cefr-feature__icon {
    width: 60px;
    height: 60px;
    background: var(--color-accent-soft);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.cefr-feature__title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.cefr-feature__desc {
    color: var(--color-text-muted);
    line-height: 1.5;
    margin: 0;
}

.cefr-levels {
    background: var(--color-surface-alt);
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.cefr-levels__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--color-text);
}

.cefr-levels__grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px;
}

.cefr-level {
    text-align: center;
    padding: 16px 8px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.cefr-level__name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 4px;
}

.cefr-level__desc {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* CTA карточка тестирования */
.test-cta-card {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: white;
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    position: sticky;
    top: 100px;
}

.test-cta-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.test-cta-card__desc {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 24px;
    line-height: 1.5;
}

.test-cta-card__features {
    text-align: left;
    margin-bottom: 30px;
    padding: 0;
}

.test-cta-card__feature {
    padding: 8px 0;
    font-size: 0.9rem;
    opacity: 0.9;
}

.test-cta-card__button {
    width: 100%;
    background: white;
    color: var(--color-accent-dark);
    margin-bottom: 16px;
}

.test-cta-card__button:hover {
    background: var(--color-surface-alt);
    transform: translateY(-2px);
}

.test-cta-card__footer {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: 16px;
}

.test-cta-card__users {
    font-size: 0.85rem;
    opacity: 0.8;
}

/* Секция преимуществ */
.features {
    padding: 80px 0;
    background: var(--color-bg);
}

.features__container {
    max-width: 1200px;
    margin: 0 auto;
}

.features__header {
    text-align: center;
    margin-bottom: 60px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features__title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
}

.features__subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--color-surface);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.feature-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.feature-card__icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card__title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 16px;
}

.feature-card__desc {
    color: var(--color-text-muted);
    line-height: 1.6;
    margin: 0;
}

/* Секция как это работает */
.how-it-works {
    padding: 80px 0;
    background: var(--color-surface);
}

.how-it-works__container {
    max-width: 1000px;
    margin: 0 auto;
}

.how-it-works__header {
    text-align: center;
    margin-bottom: 60px;
}

.how-it-works__title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
}

.how-it-works__subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    position: relative;
}

.steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 50px;
    right: 50px;
    height: 2px;
    background: var(--color-border);
    z-index: 1;
}

.step {
    text-align: center;
    position: relative;
    z-index: 2;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.step.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.step__number {
    width: 80px;
    height: 80px;
    background: var(--color-accent);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
    border: 4px solid var(--color-surface);
}

.step__title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
}

.step__desc {
    color: var(--color-text-muted);
    line-height: 1.5;
    margin: 0;
}

/* Финальный CTA */
.final-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: white;
    text-align: center;
}

.final-cta__container {
    max-width: 600px;
    margin: 0 auto;
}

.final-cta__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.final-cta__subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 40px;
    line-height: 1.5;
}

.final-cta__actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.final-cta__actions .btn {
    border-color: rgba(255,255,255,0.3);
}

.final-cta__actions .btn_outline {
    background: transparent;
    color: white;
}

.final-cta__actions .btn_outline:hover {
    background: rgba(255,255,255,0.1);
}

.final-cta__guarantee {
    margin-top: 20px;
}

.guarantee-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(255,255,255,0.2);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* ==================== */
/* АДАПТИВНОСТЬ */
/* ==================== */

/* Планшеты (768px - 1024px) */
@media (max-width: 1024px) {
    .hero__container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero__content {
        max-width: none;
        margin: 0 auto;
    }
    
    .hero__stats {
        justify-content: center;
    }
    
    .hero__visual {
        height: 300px;
    }
    
    .cefr-test__content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .test-cta-card {
        position: static;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .features__grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}

/* Большие мобильные (576px - 768px) */
@media (max-width: 768px) {
    .hero {
        padding: 60px 0;
    }
    
    .hero__title {
        font-size: 2.2rem;
    }
    
    .hero__stats {
        gap: 20px;
    }
    
    .cefr-test__title,
    .features__title,
    .how-it-works__title,
    .final-cta__title {
        font-size: 2rem;
    }
    
    .steps {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .steps::before {
        display: none;
    }
    
    .step {
        text-align: left;
        display: flex;
        gap: 20px;
        align-items: flex-start;
    }
    
    .step__number {
        margin: 0;
        flex-shrink: 0;
        width: 60px;
        height: 60px;
        font-size: 1.2rem;
    }
    
    .final-cta__actions {
        flex-direction: column;
        align-items: center;
    }
    
    .final-cta__actions .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Средние мобильные (425px - 576px) */
@media (max-width: 576px) {
    .hero__title {
        font-size: 1.8rem;
    }
    
    .hero__stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .hero__actions {
        flex-direction: column;
    }
    
    .hero__actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero__visual {
        display: none;
    }
    
    .cefr-levels__grid {
        grid-template-columns: 1fr;
    }
    
    .features__grid {
        grid-template-columns: 1fr;
    }
    
    .test-cta-card {
        padding: 30px 20px;
    }
}

/* Маленькие мобильные (до 425px) */
@media (max-width: 425px) {
    .hero,
    .cefr-test,
    .features,
    .how-it-works,
    .final-cta {
        padding: 40px 0;
    }
    
    .hero__title,
    .cefr-test__title,
    .features__title,
    .how-it-works__title,
    .final-cta__title {
        font-size: 1.6rem;
    }
    
    .hero__subtitle,
    .cefr-test__subtitle,
    .features__subtitle,
    .how-it-works__subtitle,
    .final-cta__subtitle {
        font-size: 1rem;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
}

/* Анимации для улучшения UX */
@media (prefers-reduced-motion: reduce) {
    .hero__card--floating,
    .feature-card,
    .step,
    .cefr-feature {
        animation: none !important;
        transition: none !important;
    }
}

/* Поддержка темной темы */
@media (prefers-color-scheme: dark) {
    .hero {
        background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    }
    
    .features {
        background: #0f172a;
    }
}