/* ============================================
   CSS Variables для легкого изменения темы
   ============================================ */
:root {
    /* Цветовая палитра */
    --color-primary: #6d28d9;
    --color-primary-dark: #5b21b6;
    --color-primary-light: #8b5cf6;
    --color-secondary: #0f172a;
    --color-secondary-light: #1e293b;
    --color-accent: #ec4899;
    --color-accent-light: #f472b6;
    
    /* Градиенты */
    --gradient-primary: linear-gradient(135deg, #6d28d9 0%, #ec4899 100%);
    --gradient-secondary: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-overlay: linear-gradient(180deg, rgba(15, 23, 42, 0.8) 0%, rgba(15, 23, 42, 0.95) 100%);
    
    /* Текст */
    --color-text-primary: #ffffff;
    --color-text-secondary: #cbd5e1;
    --color-text-muted: #94a3b8;
    
    /* Фоны */
    --color-bg-primary: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-card: rgba(30, 41, 59, 0.6);
    --color-bg-card-hover: rgba(30, 41, 59, 0.9);
    
    /* Тени */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(109, 40, 217, 0.5);
    --shadow-glow-hover: 0 0 30px rgba(109, 40, 217, 0.8);
    
    /* Шрифты */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Размеры */
    --container-max-width: 1200px;
    --section-padding: 100px 0;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    
    /* Переходы */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Z-index */
    --z-header: 1000;
    --z-overlay: 10;
}

/* ============================================
   Reset и базовые стили
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* ============================================
   Утилиты
   ============================================ */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
    position: relative;
}

.section__title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section__subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Анимации при скролле */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Header
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: var(--z-header);
    transition: var(--transition-base);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
    height: 70px;
}

.nav__logo .logo-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: var(--transition-base);
}

.logo-image {
    height: 40px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-base);
}

    .logo-text {
        font-family: var(--font-heading);
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--color-text-primary);
        background: var(--gradient-primary);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

    .logo-image {
        height: 35px;
    }

.nav__logo .logo-link:hover {
    transform: scale(1.05);
}

.nav__logo .logo-link:hover .logo-image {
    transform: scale(1.1);
}

.nav__menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav__link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-base);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

.nav__link:hover,
.nav__link:focus {
    color: var(--color-text-primary);
}

.nav__link:hover::after,
.nav__link:focus::after {
    width: 100%;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-text-primary);
    border-radius: 3px;
    transition: var(--transition-base);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero__video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero__video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    z-index: 2;
}

.hero__content {
    position: relative;
    z-index: 15;
    text-align: center;
    padding: 2rem;
    max-width: 900px;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4.5vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.hero__subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero__stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.hero__stat {
    text-align: center;
}

.hero__stat-number {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.hero__stat-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero__cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Hero Ribbons (Анимированные ленты)
   ============================================ */
.hero__ribbon {
    position: absolute;
    left: 0;
    width: 100%;
    height: 60px;
    background: rgba(109, 40, 217, 0.95);
    backdrop-filter: blur(10px);
    z-index: 10;
    overflow: hidden;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero__ribbon--top {
    top: 70px; /* Сдвигаем ниже хедера (высота хедера 70px) */
    border-bottom: 2px solid rgba(236, 72, 153, 0.7);
}

.hero__ribbon--bottom {
    bottom: 0;
    border-top: 2px solid rgba(236, 72, 153, 0.7);
}

.hero__ribbon-track {
    display: flex;
    align-items: center;
    white-space: nowrap;
    animation: ribbonMoveLeft 20s linear infinite;
    will-change: transform;
}

.hero__ribbon-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    padding: 0 3rem;
    background: linear-gradient(90deg, #ffffff 0%, #6d28d9 50%, #ec4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textMoveRight 20s linear infinite;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    filter: drop-shadow(0 0 10px rgba(109, 40, 217, 0.8));
    display: inline-block;
    position: relative;
}

/* Эффект: трек (фон ленты) движется влево, текст движется вправо (в обратную сторону) */
@keyframes ribbonMoveLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@keyframes textMoveRight {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(100%);
    }
}

.hero__scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border-right: 2px solid var(--color-text-primary);
    border-bottom: 2px solid var(--color-text-primary);
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%) rotate(45deg);
    }
    40% {
        transform: translateY(-10px) translateX(-50%) rotate(45deg);
    }
    60% {
        transform: translateY(-5px) translateX(-50%) rotate(45deg);
    }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn--primary {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-hover);
    animation: pulse 2s infinite;
}

.btn--secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn--secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.btn--large {
    padding: 1.25rem 2.5rem;
    font-size: 1.1rem;
}

.btn__icon {
    transition: var(--transition-base);
}

.btn:hover .btn__icon {
    transform: scale(1.1);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(109, 40, 217, 0.5);
    }
    50% {
        box-shadow: 0 0 30px rgba(109, 40, 217, 0.8);
    }
}

/* ============================================
   Features Section
   ============================================ */
.features {
    background: var(--color-bg-secondary);
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--color-bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-base);
    z-index: 0;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.feature-card:hover::before {
    opacity: 0.1;
}

.feature-card__icon {
    position: relative;
    z-index: 1;
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    color: var(--color-text-primary);
    transition: var(--transition-base);
}

.feature-card:hover .feature-card__icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-card__title {
    position: relative;
    z-index: 1;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.feature-card__description {
    position: relative;
    z-index: 1;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.feature-card__hover-content {
    position: absolute;
    top: 1rem;
    right: 1rem;
    opacity: 0;
    transform: translateY(-10px);
    transition: var(--transition-base);
    z-index: 2;
}

.feature-card:hover .feature-card__hover-content {
    opacity: 1;
    transform: translateY(0);
}

.feature-card__badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ============================================
   Advantages Section
   ============================================ */
.advantages {
    background: var(--color-bg-primary);
}

.advantage-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 6rem;
}

.advantage-item:last-child {
    margin-bottom: 0;
}

.advantage-item--reverse {
    direction: rtl;
}

.advantage-item--reverse > * {
    direction: ltr;
}

.advantage-item__image {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-base);
}

.advantage-item__image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-glow);
}

.advantage-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    border-radius: var(--border-radius-lg);
}

.advantage-item__content {
    padding: 2rem;
}

.advantage-item__title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
}

.advantage-item__description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.advantage-item__list {
    list-style: none;
}

.advantage-item__list li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--color-text-secondary);
    font-size: 1.05rem;
}

.advantage-item__list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
    font-size: 1.2rem;
}

/* ============================================
   Testimonials Section
   ============================================ */
.testimonials {
    background: var(--color-bg-secondary);
}

.testimonials__slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.testimonials__track {
    display: flex;
    overflow: hidden;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.testimonial-card {
    min-width: 100%;
    scroll-snap-align: start;
    background: var(--color-bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    text-align: center;
    transition: var(--transition-base);
}

.testimonial-card__avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--color-primary);
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

.avatar-placeholder--1 {
    background: linear-gradient(135deg, #6d28d9, #ec4899);
}

.avatar-placeholder--2 {
    background: linear-gradient(135deg, #ec4899, #f472b6);
}

.avatar-placeholder--3 {
    background: linear-gradient(135deg, #0f172a, #1e293b);
}

.avatar-placeholder--4 {
    background: linear-gradient(135deg, #8b5cf6, #6d28d9);
}

.testimonial-card__stars {
    color: #fbbf24;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.testimonial-card__text {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
    font-style: italic;
}

.testimonial-card__author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.testimonial-card__author strong {
    color: var(--color-text-primary);
    font-size: 1.1rem;
}

.testimonial-card__author span {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.testimonials__controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
}

.testimonials__btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
    backdrop-filter: blur(10px);
}

.testimonials__btn:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    transform: scale(1.1);
}

.testimonials__dots {
    display: flex;
    gap: 0.5rem;
}

.testimonials__dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
}

.testimonials__dot.active {
    background: var(--color-primary);
    width: 30px;
    border-radius: 6px;
}

/* ============================================
   Download CTA Section
   ============================================ */
.download {
    background: var(--gradient-secondary);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(109, 40, 217, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

.download__content {
    position: relative;
    z-index: 1;
}

.download__title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.download__subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download__buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Contact Form Section
   ============================================ */
.contact {
    background: var(--color-bg-primary);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-input {
    width: 100%;
    padding: 1.25rem 1rem 0.75rem;
    background: var(--color-bg-card);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-base);
    outline: none;
}

.form-input--textarea {
    resize: vertical;
    min-height: 120px;
}

.form-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(109, 40, 217, 0.1);
}

.form-label {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: var(--transition-base);
}

.form-group textarea + .form-label {
    top: 1.25rem;
    transform: none;
}

.form-input:focus + .form-label,
.form-input:not(:placeholder-shown) + .form-label {
    top: 0.5rem;
    transform: translateY(0);
    font-size: 0.75rem;
    color: var(--color-primary);
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

.form-input:focus ~ .form-line {
    width: 100%;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3rem 0 1.5rem;
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer__logo {
    margin-bottom: 1rem;
}

.footer__logo-image {
    height: 50px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 10px rgba(109, 40, 217, 0.3));
    transition: var(--transition-base);
}

.footer__logo-image:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 15px rgba(109, 40, 217, 0.5));
}

.footer__title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer__subtitle {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.footer__description {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.footer__links {
    list-style: none;
}

.footer__links li {
    margin-bottom: 0.5rem;
}

.footer__link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: var(--transition-base);
    display: inline-block;
}

.footer__link:hover {
    color: var(--color-primary);
    transform: translateX(5px);
}

.footer__bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

/* ============================================
   Кнопка управления звуком видео
   ============================================ */
.video-sound-toggle {
    position: absolute;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all 0.3s ease;
    padding: 0;
}

.video-sound-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.video-sound-toggle:active {
    transform: scale(0.95);
}

.video-sound-toggle svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   Адаптивность (Mobile-First)
   ============================================ */
@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--color-bg-secondary);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 3rem;
        gap: 2rem;
        transition: var(--transition-base);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
    }

    .nav__menu.active {
        left: 0;
    }

    .nav__toggle {
        display: flex;
    }

    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .nav__toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero__ribbon {
        height: 50px;
    }

    .hero__ribbon-text {
        font-size: 1.2rem;
        padding: 0 2rem;
    }

    .hero__cta {
        flex-direction: column;
        gap: 0.75rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: 0.875rem 1.5rem;
    }

    .advantage-item {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .advantage-item--reverse {
        direction: ltr;
    }

    .advantage-item__image {
        order: -1;
    }

    .features__grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .download__buttons {
        flex-direction: column;
        gap: 0.75rem;
    }

    .download__buttons .btn {
        width: 100%;
    }

    .video-sound-toggle {
        bottom: 80px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
    
    .video-sound-toggle svg {
        width: 20px;
        height: 20px;
    }

    /* Логотип */
    .logo-image {
        height: 32px;
    }

    .logo-text {
        font-size: 1.25rem;
    }

    .footer__logo-image {
        height: 40px;
    }

    /* Контактная форма */
    .contact-form {
        padding: 0;
    }

    .form-group {
        margin-bottom: 1.5rem;
    }

    /* Footer */
    .footer__content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer__links {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 50px 0;
    }

    .container {
        padding: 0 15px;
    }

    .hero__content {
        padding: 1rem;
    }

    .hero__title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
        margin-bottom: 1rem;
    }

    .hero__subtitle {
        font-size: clamp(0.95rem, 4vw, 1.1rem);
        margin-bottom: 2rem;
    }

    .hero__ribbon {
        height: 40px;
    }

    .hero__ribbon-text {
        font-size: 0.9rem;
        padding: 0 1rem;
    }

    .section__title {
        font-size: clamp(1.75rem, 7vw, 2.5rem);
        margin-bottom: 0.75rem;
    }

    .section__subtitle {
        font-size: clamp(0.9rem, 3vw, 1.1rem);
        margin-bottom: 2rem;
    }

    .feature-card,
    .testimonial-card {
        padding: 1.25rem;
    }

    .feature-card__icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1rem;
    }

    .feature-card__title {
        font-size: 1.25rem;
    }

    .feature-card__description {
        font-size: 0.9rem;
    }

    .advantage-item {
        gap: 1.5rem;
        margin-bottom: 4rem;
    }

    .advantage-item__content {
        padding: 1rem;
    }

    .advantage-item__title {
        font-size: clamp(1.5rem, 5vw, 2rem);
        margin-bottom: 1rem;
    }

    .advantage-item__description {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    .advantage-item__list li {
        font-size: 0.95rem;
        padding: 0.5rem 0;
    }

    .advantage-image {
        border-radius: var(--border-radius);
    }

    /* Кнопки */
    .btn {
        font-size: 0.95rem;
        padding: 0.875rem 1.5rem;
    }

    .btn--large {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

    /* Слайдер отзывов */
    .testimonial-card {
        padding: 2rem 1.5rem;
    }

    .testimonial-card__avatar {
        width: 80px;
        height: 80px;
        margin-bottom: 1rem;
    }

    .testimonial-card__text {
        font-size: 1rem;
    }

    /* Download секция */
    .download__title {
        font-size: clamp(1.75rem, 7vw, 2.5rem);
    }

    .download__subtitle {
        font-size: clamp(0.95rem, 4vw, 1.1rem);
    }

    /* Footer */
    .footer {
        padding: 2rem 0 1rem;
    }

    .footer__content {
        gap: 1.5rem;
    }

    .footer__logo-image {
        height: 40px;
    }

    .footer__title {
        font-size: 1.25rem;
    }

    .footer__subtitle {
        font-size: 1rem;
    }

    /* Логотип на маленьких экранах */
    .logo-image {
        height: 28px;
    }

    .logo-text {
        font-size: 1.1rem;
    }

    .footer__logo-image {
        height: 35px;
    }
}

/* Дополнительные улучшения для очень маленьких экранов */
@media (max-width: 360px) {
    .container {
        padding: 0 10px;
    }

    .section {
        padding: 40px 0;
    }

    .hero__title {
        font-size: 1.5rem;
    }

    .hero__subtitle {
        font-size: 0.9rem;
    }

    .promo__gifts {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .promo__plus,
    .promo__equals {
        display: none;
    }

    .gift-box {
        width: 100px;
        height: 100px;
    }

    .gift-box--3 {
        width: 120px;
        height: 120px;
    }

    .gift-box__content {
        font-size: 0.7rem;
    }

    .section__title {
        font-size: 1.5rem;
    }

    .btn {
        font-size: 0.9rem;
        padding: 0.75rem 1.25rem;
    }

    /* Логотип - скрыть текст на очень маленьких экранах */
    .logo-text {
        display: none;
    }

    .logo-image {
        height: 30px;
    }
}

/* Ландшафтная ориентация на мобильных */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 100px 0 50px;
    }

    .hero__ribbon--top {
        top: 70px;
    }


    .section {
        padding: 60px 0;
    }
}

/* ============================================
   Дополнительные анимации
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

/* ============================================
   Новогодняя тематика
   ============================================ */

/* Снежинки */
.snowflakes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.snowflake {
    position: absolute;
    top: -10px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.5rem;
    font-family: Arial, sans-serif;
    text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
    animation: snowfall linear infinite;
    user-select: none;
}

.snowflake:nth-child(1) {
    left: 10%;
    animation-duration: 10s;
    animation-delay: 0s;
}

.snowflake:nth-child(2) {
    left: 20%;
    animation-duration: 12s;
    animation-delay: 1s;
}

.snowflake:nth-child(3) {
    left: 30%;
    animation-duration: 14s;
    animation-delay: 2s;
}

.snowflake:nth-child(4) {
    left: 40%;
    animation-duration: 11s;
    animation-delay: 0.5s;
}

.snowflake:nth-child(5) {
    left: 50%;
    animation-duration: 13s;
    animation-delay: 1.5s;
}

.snowflake:nth-child(6) {
    left: 60%;
    animation-duration: 15s;
    animation-delay: 2.5s;
}

.snowflake:nth-child(7) {
    left: 70%;
    animation-duration: 10s;
    animation-delay: 0.3s;
}

.snowflake:nth-child(8) {
    left: 80%;
    animation-duration: 12s;
    animation-delay: 1.8s;
}

.snowflake:nth-child(9) {
    left: 90%;
    animation-duration: 14s;
    animation-delay: 0.7s;
}

.snowflake:nth-child(10) {
    left: 15%;
    animation-duration: 11s;
    animation-delay: 1.2s;
}

.snowflake:nth-child(11) {
    left: 35%;
    animation-duration: 13s;
    animation-delay: 2.2s;
}

.snowflake:nth-child(12) {
    left: 65%;
    animation-duration: 15s;
    animation-delay: 0.9s;
}

@keyframes snowfall {
    0% {
        transform: translateY(0) translateX(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) translateX(50px) rotate(360deg);
        opacity: 0;
    }
}

/* Гирлянды по периметру */
.garlands {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9998;
    overflow: hidden;
}

.garland {
    position: absolute;
    left: 0;
    width: 100%;
    height: 8px;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.garland--top {
    top: 70px;
}

.garland--bottom {
    bottom: 0;
    flex-direction: row-reverse;
}

.garland::before,
.garland::after {
    content: '';
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, transparent, currentColor, transparent);
}

.garland::before {
    background: linear-gradient(90deg, transparent, #ffd700, transparent);
}

.garland::after {
    background: linear-gradient(90deg, transparent, #ff6b6b, transparent);
}

.garland {
    background: repeating-linear-gradient(
        90deg,
        #ffd700 0px,
        #ffd700 10px,
        #ff6b6b 10px,
        #ff6b6b 20px,
        #4ecdc4 20px,
        #4ecdc4 30px,
        #ffd700 30px,
        #ffd700 40px
    );
    animation: garlandBlink 1.5s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5),
                0 0 20px rgba(255, 107, 107, 0.5),
                0 0 30px rgba(78, 205, 196, 0.5);
}

.garland--top {
    background: repeating-linear-gradient(
        90deg,
        #ffd700 0px,
        #ffd700 15px,
        #ff6b6b 15px,
        #ff6b6b 30px,
        #4ecdc4 30px,
        #4ecdc4 45px,
        #ffd700 45px,
        #ffd700 60px
    );
}

.garland--bottom {
    background: repeating-linear-gradient(
        90deg,
        #4ecdc4 0px,
        #4ecdc4 15px,
        #ffd700 15px,
        #ffd700 30px,
        #ff6b6b 30px,
        #ff6b6b 45px,
        #4ecdc4 45px,
        #4ecdc4 60px
    );
    animation-delay: 0.75s;
}

@keyframes garlandBlink {
    0%, 100% {
        opacity: 1;
        filter: brightness(1);
    }
    25% {
        opacity: 0.7;
        filter: brightness(1.2);
    }
    50% {
        opacity: 0.5;
        filter: brightness(0.8);
    }
    75% {
        opacity: 0.8;
        filter: brightness(1.1);
    }
}



/* Telegram CTA Section */
.telegram-cta {
    background: linear-gradient(135deg, rgba(109, 40, 217, 0.1) 0%, rgba(236, 72, 153, 0.1) 100%);
    border-top: 2px solid rgba(109, 40, 217, 0.3);
    border-bottom: 2px solid rgba(236, 72, 153, 0.3);
}

.telegram-cta__content {
    text-align: center;
    padding: 3rem 2rem;
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.telegram-cta__icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: bounce 2s infinite;
}

.telegram-cta__title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.telegram-cta__subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.telegram-cta__btn {
    margin-top: 1rem;
}

/* Promo Section (Акция) */
.promo {
    background: radial-gradient(1200px 600px at 10% 10%, rgba(245,158,11,0.06), transparent 8%), 
                radial-gradient(900px 400px at 90% 90%, rgba(239,68,68,0.04), transparent 8%), 
                var(--color-bg-primary);
    position: relative;
    overflow: visible;
}

.promo-block {
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    border-radius: 18px;
    padding: 28px;
    box-shadow: 0 10px 30px rgba(2,6,23,0.7);
    position: relative;
    overflow: visible;
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 24px;
    align-items: center;
}

.promo-block__info {
    padding: 12px 18px;
}

.promo-block__kicker {
    font-size: 13px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    display: inline-block;
    margin-bottom: 8px;
}

.promo-block__title {
    margin: 0 0 8px 0;
    font-size: clamp(1.5rem, 4vw, 28px);
    line-height: 1.2;
    letter-spacing: -0.02em;
    font-family: var(--font-heading);
    color: var(--color-text-primary);
}

.promo-block__title strong,
.promo-block__title-number {
    background: linear-gradient(90deg, #f59e0b, #ffb86b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    white-space: nowrap;
    display: inline-block;
}

.promo-block__lead {
    margin: 0 0 18px 0;
    color: var(--color-text-muted);
    font-size: clamp(0.9rem, 2vw, 14px);
    max-width: 55ch;
    line-height: 1.5;
}

.promo-block__cta-row {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.promo-block__btn {
    background: linear-gradient(90deg, #f59e0b, #ffb86b);
    color: #071224;
    padding: 12px 18px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    border: 0;
    box-shadow: 0 6px 18px rgba(245,158,11,0.18);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    text-decoration: none;
    display: inline-block;
}

.promo-block__btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(245,158,11,0.25);
}

.promo-block__btn:active {
    transform: translateY(1px);
}

.promo-block__btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid rgba(255,255,255,0.06);
    box-shadow: none;
    padding: 12px 18px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.promo-block__btn-secondary:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.1);
}

.promo-block__note {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-top: 12px;
}

.promo-block__timer {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.promo-block__timer-text {
    display: block;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.promo-block__countdown {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.promo-block__timer-date {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
}

.promo-block__urgency {
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(255, 107, 107, 0.2);
    border: 2px solid rgba(255, 107, 107, 0.4);
    border-radius: var(--border-radius);
    text-align: center;
}

.promo-block__urgency-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.promo-block__urgency-count {
    font-size: 1.3rem;
    font-weight: 800;
    color: #ff6b6b;
    display: inline-block;
    transition: transform 0.3s ease;
}

/* Визуальная часть */
.promo-block__visual {
    position: relative;
    height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.promo-block__shelf {
    position: absolute;
    bottom: 12px;
    left: 12px;
    right: 12px;
    height: 48px;
    border-radius: 10px;
    background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0.12));
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.02);
}

.promo-block__box {
    width: 130px;
    height: 90px;
    border-radius: 8px;
    position: absolute;
    bottom: 60px;
    transform-origin: center center;
    box-shadow: 0 18px 30px rgba(2,6,23,0.6), 0 6px 12px rgba(2,6,23,0.35);
    background: linear-gradient(180deg,#fff8e6, #ffdca8);
    display: flex;
    align-items: center;
    justify-content: center;
}

.promo-block__box--one {
    left: 44px;
    background: linear-gradient(180deg,#fef3c7,#ffdba4);
    transform: rotate(-6deg);
}

.promo-block__box--two {
    left: 170px;
    background: linear-gradient(180deg,#fee2e2,#ffc9c9);
    transform: rotate(8deg);
    height: 110px;
}

.promo-block__box--three {
    right: 24px;
    background: linear-gradient(180deg,#ecfeff,#c7fff8);
    transform: rotate(-4deg);
}

.promo-block__box--four {
    right: 136px;
    background: linear-gradient(180deg,#fff1f2,#ffd5e0);
    transform: rotate(6deg);
}

.promo-block__box::before,
.promo-block__box::after {
    content: "";
    position: absolute;
    pointer-events: none;
    border-radius: 3px;
}

.promo-block__box::before {
    width: 18px;
    height: 120%;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(180deg, rgba(0,0,0,0.08), rgba(0,0,0,0.02));
}

.promo-block__box::after {
    height: 18px;
    width: 120%;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(90deg, rgba(0,0,0,0.08), rgba(0,0,0,0.02));
}

.promo-block__shine {
    position: absolute;
    left: 8px;
    top: 6px;
    width: 28px;
    height: 8px;
    border-radius: 4px;
    opacity: 0.25;
    background: linear-gradient(90deg,rgba(255,255,255,0.9),rgba(255,255,255,0.05));
}

.promo-block__bow {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 28px;
    display: block;
}

.promo-block__bow span {
    position: absolute;
    display: block;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(180deg, #ef4444, #ff7b7b);
    transform-origin: center;
}

.promo-block__bow-l {
    left: -6px;
    transform: rotate(-20deg);
}

.promo-block__bow-r {
    right: -6px;
    transform: rotate(20deg);
}

.promo-block__bow-knot {
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(180deg,#fff3ea,#ffd3b0);
}

.promo-block__garland {
    position: absolute;
    left: 0;
    right: 0;
    top: -5px;
    height: 80px;
    width: 100%;
    pointer-events: none;
    overflow: hidden;
}

.promo-block__bulb {
    filter: drop-shadow(0 6px 8px rgba(0,0,0,0.45));
}

@keyframes twinkle {
    0% {
        opacity: 0.85;
        transform: translateY(0) scale(1);
    }
    50% {
        opacity: 1;
        transform: translateY(-2px) scale(1.04);
    }
    100% {
        opacity: 0.86;
        transform: translateY(0) scale(1);
    }
}

.promo-block__light {
    animation: twinkle 2.8s infinite ease-in-out;
}

.promo-block__sparkle {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: linear-gradient(180deg,#fff7e6,#ffd9a6);
    opacity: 0.9;
    box-shadow: 0 6px 18px rgba(245,158,11,0.12);
    transform: translate(-50%,-50%);
}

/* Модальное окно */
.terms-dialog {
    border: none;
    border-radius: 12px;
    padding: 20px;
    max-width: 520px;
    width: 92%;
    background: var(--color-bg-card);
    backdrop-filter: blur(10px);
    color: var(--color-text-primary);
}

.terms-dialog__title {
    margin-top: 0;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-text-primary);
}

.terms-dialog__text {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.terms-dialog__actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 14px;
    flex-wrap: wrap;
}

.promo__content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 3rem 2rem;
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    border: 2px solid rgba(255, 215, 0, 0.3);
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.2);
}

.promo__badge {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, #ffd700, #ff6b6b);
    color: var(--color-text-primary);
    border-radius: 30px;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    animation: pulse 2s infinite;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

.promo__title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffd700, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.promo__subtitle {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.promo__gifts {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.gift-box {
    position: relative;
    width: 150px;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: giftBounce 2s ease-in-out infinite;
    cursor: pointer;
    transition: var(--transition-base);
    perspective: 1000px;
}

.gift-box:hover {
    transform: scale(1.05) rotateY(5deg);
}

.gift-box--1 {
    background: linear-gradient(135deg, #c0392b 0%, #e74c3c 50%, #c0392b 100%);
    box-shadow: 
        0 10px 30px rgba(192, 57, 43, 0.4),
        0 5px 15px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
    animation-delay: 0s;
}

.gift-box--2 {
    background: linear-gradient(135deg, #16a085 0%, #1abc9c 50%, #16a085 100%);
    box-shadow: 
        0 10px 30px rgba(22, 160, 133, 0.4),
        0 5px 15px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
    animation-delay: 0.3s;
}

.gift-box--3 {
    background: linear-gradient(135deg, #f39c12 0%, #f1c40f 50%, #f39c12 100%);
    box-shadow: 
        0 10px 30px rgba(243, 156, 18, 0.4),
        0 5px 15px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.2),
        inset 0 -1px 0 rgba(0, 0, 0, 0.2);
    animation-delay: 0.6s;
    width: 180px;
    height: 180px;
}

.gift-box__ribbon {
    position: absolute;
    width: 100%;
    height: 25px;
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0.9) 0%,
        rgba(255, 255, 255, 0.7) 50%,
        rgba(255, 255, 255, 0.9) 100%);
    top: 50%;
    transform: translateY(-50%);
    box-shadow: 
        0 2px 5px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    z-index: 2;
}

.gift-box__ribbon::before,
.gift-box__ribbon::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 100%;
    background: rgba(0, 0, 0, 0.1);
    top: 0;
}

.gift-box__ribbon::before {
    left: 0;
}

.gift-box__ribbon::after {
    right: 0;
}

.gift-box__bow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    z-index: 3;
}

.gift-box__bow::before,
.gift-box__bow::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #ffffff, #f0f0f0);
    border-radius: 50% 50% 50% 0;
    box-shadow: 
        0 2px 5px rgba(0, 0, 0, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.gift-box__bow::before {
    top: 0;
    left: 0;
    transform: rotate(-45deg);
}

.gift-box__bow::after {
    bottom: 0;
    right: 0;
    transform: rotate(135deg);
}

.gift-box__content {
    position: relative;
    z-index: 1;
    color: var(--color-text-primary);
    font-weight: 700;
    font-size: 1rem;
    text-align: center;
    text-shadow: 
        0 2px 5px rgba(0, 0, 0, 0.5),
        0 0 10px rgba(0, 0, 0, 0.3);
    padding: 0.5rem;
}

.gift-box--3 .gift-box__content {
    font-size: 1.1rem;
}

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

.promo__plus,
.promo__equals {
    font-size: 3rem;
    font-weight: 700;
    color: #ffd700;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
    animation: pulse 2s infinite;
}

.promo__features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.promo__feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    color: var(--color-text-primary);
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.promo__feature-icon {
    font-size: 1.5rem;
}

.promo__cta {
    margin-bottom: 2rem;
}

.promo__btn {
    font-size: 1.2rem;
    padding: 1.5rem 3rem;
    animation: pulse 2s infinite;
}

.promo__timer {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.promo__timer-text {
    display: block;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.promo__countdown {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 215, 0, 0.1);
    border: 2px solid rgba(255, 215, 0, 0.3);
    border-radius: var(--border-radius);
    padding: 1rem 1.5rem;
    min-width: 80px;
    backdrop-filter: blur(10px);
}

.countdown-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: #ffd700;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.countdown-label {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.countdown-separator {
    font-size: 2rem;
    font-weight: 700;
    color: #ffd700;
    margin: 0 0.5rem;
}

.countdown-expired {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    text-align: center;
    padding: 1rem;
}

.promo__timer-date {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
}

.promo__urgency {
    margin-top: 1.5rem;
    padding: 1rem;
    background: rgba(255, 107, 107, 0.2);
    border: 2px solid rgba(255, 107, 107, 0.4);
    border-radius: var(--border-radius);
    text-align: center;
}

.promo__urgency-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.promo__urgency-count {
    font-size: 1.3rem;
    font-weight: 800;
    color: #ff6b6b;
    display: inline-block;
    transition: transform 0.3s ease;
}

/* Социальное доказательство в секции скачивания */
.download__social-proof {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.social-proof-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-proof-icon {
    font-size: 1.5rem;
}

.social-proof-text {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.social-proof-text strong {
    color: var(--color-text-primary);
    font-weight: 700;
}


/* ============================================
   FAQ Section
   ============================================ */
.faq {
    background: var(--color-bg-secondary);
}

.faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: var(--transition-base);
}

.faq-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.faq-item__question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    cursor: pointer;
    user-select: none;
}

.faq-item__question h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.faq-item__icon {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    transition: var(--transition-base);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(109, 40, 217, 0.1);
}

.faq-item.active .faq-item__icon {
    transform: rotate(45deg);
    background: var(--gradient-primary);
    color: var(--color-text-primary);
}

.faq-item__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 1.5rem;
}

.faq-item.active .faq-item__answer {
    max-height: 500px;
    padding: 0 1.5rem 1.5rem;
}

.faq-item__answer p {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin: 0;
}

/* ============================================
   Guarantees Section
   ============================================ */
.guarantees {
    background: var(--color-bg-primary);
}

.guarantees__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.guarantee-card {
    background: var(--color-bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.guarantee-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-base);
    z-index: 0;
}

.guarantee-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.guarantee-card:hover::before {
    opacity: 0.1;
}

.guarantee-card__icon {
    position: relative;
    z-index: 1;
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.guarantee-card__title {
    position: relative;
    z-index: 1;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.guarantee-card__description {
    position: relative;
    z-index: 1;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ============================================
   Case Studies Section
   ============================================ */
.cases {
    background: var(--color-bg-secondary);
}

.cases__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    align-items: stretch;
}

@media (max-width: 1024px) {
    .cases__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .cases__grid {
        grid-template-columns: 1fr;
    }
}

.case-card {
    background: var(--color-bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 400px;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.case-card__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.case-card__avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--color-primary);
}

.case-card__info {
    flex: 1;
}

.case-card__name {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0 0 0.25rem 0;
}

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

.case-card__results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex: 1;
}

.case-card__quote {
    margin-top: auto;
}

.case-card__result {
    text-align: center;
    padding: 1rem;
    background: rgba(109, 40, 217, 0.1);
    border-radius: var(--border-radius);
}

.case-card__result-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.case-card__result-value {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.case-card__quote {
    font-style: italic;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin: 0;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    border-left: 3px solid var(--color-primary);
}

.promo__guarantee {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.promo__guarantee-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--border-radius);
    color: var(--color-text-primary);
    font-size: 0.9rem;
    font-weight: 500;
}

.promo__guarantee-icon {
    font-size: 1.25rem;
}

/* Адаптивность для новогодних элементов */
@media (max-width: 880px) {
    .promo-block {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 20px;
    }

    .promo-block__visual {
        height: 200px;
    }

    .promo-block__box {
        transform: none !important;
        left: 20px;
        right: auto;
    }

    .promo-block__box--one {
        left: 28px;
    }

    .promo-block__box--two {
        left: 140px;
    }

    .promo-block__box--three {
        right: 88px;
    }

    .promo-block__shelf {
        bottom: 8px;
    }

    .promo-block__title {
        font-size: 28px;
    }

    .promo-block__cta-row {
        flex-direction: column;
    }

    .promo-block__btn,
    .promo-block__btn-secondary {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 768px) {
    /* Снежинки - меньше размер на планшетах */
    .snowflake {
        font-size: 1.2rem;
    }

    /* Гирлянды - тоньше на мобильных */
    .garland {
        height: 6px;
    }

    .garland--top {
        top: 70px;
    }

    /* Елочка - меньше */

    /* Секция акции */
    .promo__content {
        padding: 2rem 1.5rem;
    }

    .promo__title {
        font-size: clamp(1.75rem, 6vw, 2.5rem);
    }

    .promo__subtitle {
        font-size: 1rem;
    }

    .promo__gifts {
        gap: 0.75rem;
        flex-wrap: wrap;
    }

    .gift-box {
        width: 110px;
        height: 110px;
    }

    .gift-box--3 {
        width: 130px;
        height: 130px;
    }

    .gift-box__content {
        font-size: 0.9rem;
    }

    .promo__features {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }

    .promo__feature {
        padding: 0.75rem 1rem;
        font-size: 0.95rem;
    }

    .promo__plus,
    .promo__equals {
        font-size: 2rem;
        margin: 0 0.5rem;
    }

    .promo__timer-date {
        font-size: 1.25rem;
    }

    .promo__countdown {
        gap: 0.25rem;
    }

    .countdown-item {
        padding: 0.75rem 1rem;
        min-width: 60px;
    }

    .countdown-number {
        font-size: 1.5rem;
    }

    .countdown-separator {
        font-size: 1.5rem;
        margin: 0 0.25rem;
    }

    .download__social-proof {
        flex-direction: column;
        gap: 1rem;
    }

    /* Telegram CTA */
    .telegram-cta__content {
        padding: 2rem 1.5rem;
    }

    .telegram-cta__icon {
        font-size: 3rem;
    }

    .telegram-cta__title {
        font-size: clamp(1.5rem, 5vw, 2rem);
    }

    .telegram-cta__subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    /* Снежинки - еще меньше на маленьких экранах */
    .snowflake {
        font-size: 1rem;
    }

    /* Гирлянды - еще тоньше */
    .garland {
        height: 4px;
    }

    /* Елочка - скрыта на маленьких экранах */

    /* Секция акции - компактнее */
    .promo__content {
        padding: 1.5rem 1rem;
    }

    .promo__badge {
        padding: 0.5rem 1rem;
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }

    .promo__title {
        font-size: clamp(1.5rem, 7vw, 2rem);
        margin-bottom: 0.75rem;
    }

    .promo__subtitle {
        font-size: 0.9rem;
        margin-bottom: 2rem;
    }

    .promo__gifts {
        gap: 0.5rem;
        margin-bottom: 2rem;
    }

    .gift-box {
        width: 90px;
        height: 90px;
    }

    .gift-box--3 {
        width: 110px;
        height: 110px;
    }

    .gift-box__content {
        font-size: 0.75rem;
        padding: 0.25rem;
    }

    .gift-box__ribbon {
        height: 18px;
    }

    .gift-box__bow {
        width: 30px;
        height: 30px;
    }

    .promo__plus,
    .promo__equals {
        font-size: 1.5rem;
        margin: 0 0.25rem;
    }

    .promo__features {
        gap: 0.75rem;
        margin-bottom: 2rem;
    }

    .promo__feature {
        padding: 0.75rem;
        font-size: 0.85rem;
    }

    .promo__feature-icon {
        font-size: 1.2rem;
    }

    .promo__btn {
        font-size: 1rem;
        padding: 1.25rem 2rem;
        width: 100%;
    }

    .promo__timer {
        padding-top: 1.5rem;
    }

    .promo__timer-text {
        font-size: 0.8rem;
    }

    .promo__timer-date {
        font-size: 1.1rem;
    }

    .promo__countdown {
        gap: 0.25rem;
    }

    .countdown-item {
        padding: 0.5rem 0.75rem;
        min-width: 50px;
    }

    .countdown-number {
        font-size: 1.25rem;
    }

    .countdown-label {
        font-size: 0.65rem;
    }

    .countdown-separator {
        font-size: 1.25rem;
    }

    .hero__stats {
        gap: 1.5rem;
    }

    .hero__stat-number {
        font-size: 1.75rem;
    }

    .hero__stat-label {
        font-size: 0.75rem;
    }

    .promo__urgency-text {
        font-size: 0.95rem;
    }

    .social-proof-item {
        padding: 0.75rem 1rem;
        font-size: 0.85rem;
    }

    /* Telegram CTA - компактнее */
    .telegram-cta__content {
        padding: 1.5rem 1rem;
    }

    .telegram-cta__icon {
        font-size: 2.5rem;
        margin-bottom: 0.75rem;
    }

    .telegram-cta__title {
        font-size: clamp(1.25rem, 6vw, 1.75rem);
        margin-bottom: 0.75rem;
    }

    .telegram-cta__subtitle {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }

    .telegram-cta__btn {
        width: 100%;
        justify-content: center;
    }

    /* Ленты hero - меньше */
    .hero__ribbon {
        height: 40px;
    }

    .hero__ribbon-text {
        font-size: 0.85rem;
        padding: 0 1rem;
    }

    /* FAQ адаптивность */
    .faq-item__question {
        padding: 1rem;
    }

    .faq-item__question h3 {
        font-size: 1rem;
    }

    .faq-item__icon {
        width: 25px;
        height: 25px;
        font-size: 1.25rem;
    }

    /* Guarantees адаптивность */
    .guarantee-card {
        padding: 1.5rem;
    }

    .guarantee-card__icon {
        font-size: 2.5rem;
    }

    .guarantee-card__title {
        font-size: 1.25rem;
    }

    /* Cases адаптивность */
    .case-card {
        padding: 1.5rem;
    }

    .case-card__header {
        flex-direction: column;
        text-align: center;
    }

    .case-card__results {
        grid-template-columns: 1fr;
    }

    .case-card__result-value {
        font-size: 1.25rem;
    }

    .promo__guarantee {
        flex-direction: column;
        gap: 0.75rem;
    }

    .promo__guarantee-item {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }

    /* Новый блок акции - адаптивность */
    .promo-block {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 20px;
    }

    .promo-block__visual {
        height: 200px;
    }

    .promo-block__box {
        transform: none !important;
        left: 20px;
        right: auto;
    }

    .promo-block__box--one {
        left: 28px;
    }

    .promo-block__box--two {
        left: 140px;
    }

    .promo-block__box--three {
        right: 88px;
    }

    .promo-block__shelf {
        bottom: 8px;
    }

    .promo-block__title {
        font-size: 24px;
    }

    .promo-block__cta-row {
        flex-direction: column;
    }

    .promo-block__btn,
    .promo-block__btn-secondary {
        width: 100%;
        text-align: center;
    }
}