/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #ffffff;
    font-size: 16px;
}

/* Skip Links */
.skip-links {
    position: absolute;
    top: -40px;
    left: 6px;
    background: #000;
    color: #fff;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
    border-radius: 4px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.skip-links:focus {
    top: 6px;
    opacity: 1;
    pointer-events: auto;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.gradient-text {
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 50%, #1a1a1a 100%); /* Обновленный градиент в палитре главного блока */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 3s ease-in-out infinite;
}

/* SVG Icons - Нормальные галочки */
.check-icon {
    width: 16px;
    height: 16px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.check-icon-green {
    color: #2972eb; /* Brandeis blue вместо зеленого */
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 100%); /* Brandeis blue -> Cornflower blue */
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(41, 114, 235, 0.4);
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 100%);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: #f8fafc;
    color: #1e293b;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.btn-secondary:hover {
    background: #f1f5f9;
    transform: translateY(-1px);
}

.btn-white {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: white;
    color: #1e293b;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* Header */
.landing-header {
    position: absolute;
    top: 25px;
    left: 20px;
    right: 20px;
    background: transparent;
    backdrop-filter: none;
    border-bottom: none;
    z-index: 1000;
    transition: all 0.3s ease;
    border-radius: 16px;
}

.landing-header.scrolled {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-radius: 0;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.landing-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: #1e293b;
    font-weight: 700;
    font-size: 20px;
}

.landing-nav .nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
    margin: 0;
}

.landing-nav .nav-menu a {
    text-decoration: none;
    color: #64748b;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.landing-nav .nav-menu a:hover {
    color: #2972eb; /* Brandeis blue */
}

.landing-nav .nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 100%); /* Обновленный градиент */
    transition: width 0.3s ease;
}

.landing-nav .nav-menu a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #64748b;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: rgba(41, 114, 235, 0.05); /* Легкий синий оттенок */
}

/* Mobile Navigation */
.landing-nav.mobile-open {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid #e2e8f0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.landing-nav.mobile-open .nav-menu {
    flex-direction: column;
    padding: 24px;
    gap: 16px;
}

.landing-nav.mobile-open .nav-menu a {
    padding: 12px 0;
}

.landing-nav.mobile-open .nav-menu a::after {
    display: none;
}

/* User Profile */
.user-profile-link:hover {
    background-color: rgba(41, 114, 235, 0.05) !important; /* Легкий синий оттенок */
}

/* Hero Section */
.hero-section {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, #f9fafc 0%, #f9fafc 25%, #c0d6fc 70%, #2972eb 100%); /* Градиент от белого к ярко-синему */
    position: relative;
    overflow: hidden;
    margin: 20px;
    border-radius: 16px;
    height: 95vh;
}

/* Анимированный градиентный фон */
.gradient-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.gradient-circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.4; /* Уменьшил непрозрачность для лучшего сочетания с градиентом */
    animation: gradientFloat 20s ease-in-out infinite;
}

.gradient-circle-1 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0.1) 70%); /* Белые круги сверху */
    top: -175px;
    left: -175px;
    animation-delay: 0s;
    animation-duration: 25s;
}

.gradient-circle-2 {
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(192, 214, 252, 0.5) 0%, rgba(192, 214, 252, 0.1) 70%); /* Periwinkle в середине */
    top: 20%;
    right: -140px;
    animation-delay: -5s;
    animation-duration: 30s;
}

.gradient-circle-3 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(41, 114, 235, 0.4) 0%, rgba(41, 114, 235, 0.08) 70%); /* Brandeis blue снизу */
    bottom: -225px;
    left: 20%;
    animation-delay: -10s;
    animation-duration: 35s;
}

.gradient-circle-4 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(112, 152, 224, 0.3) 0%, rgba(112, 152, 224, 0.05) 70%); /* Cornflower blue */
    top: 60%;
    right: 30%;
    animation-delay: -15s;
    animation-duration: 28s;
}

.gradient-circle-5 {
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0.05) 70%); /* Белые акценты */
    top: 10%;
    left: 60%;
    animation-delay: -20s;
    animation-duration: 40s;
}

@keyframes gradientFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(30px, -20px) scale(1.1);
    }
    50% {
        transform: translate(-20px, 30px) scale(0.9);
    }
    75% {
        transform: translate(20px, 10px) scale(1.05);
    }
}

/* Обновленные стили для hero-section без старого фона */
.hero-section::before {
    display: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.9); /* Более белый фон для лучшего контраста */
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    color: #1a1a1a;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    margin-right: 8px;
    animation: fadeInUp 0.6s ease-out;
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.1); /* Легкая тень */
}

.hero-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: #1a1a1a;
    animation: fadeInUp 0.6s ease-out 0.1s both;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* Легкая тень для лучшей читаемости */
}

.gradient-text {
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 50%, #1a1a1a 100%); /* Градиент от синего к белому */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 3s ease-in-out infinite;
}

.hero-subtitle {
    font-size: 18px;
    color: #2d3748; /* Более темный текст для контраста */
    max-width: 800px;
    margin: 0 auto 40px;
    line-height: 1.6;
    animation: fadeInUp 0.6s ease-out 0.2s both;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.8); /* Светлая тень для лучшей читаемости */
}

.hero-actions {
    margin-bottom: 48px;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.8); /* Более белый фон */
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: 12px;
    font-size: 14px;
    color: #1a1a1a; /* Темный текст */
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.15); /* Легкая синяя тень */
}

.hero-feature:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-2px);
    border-color: rgba(41, 114, 235, 0.3);
    box-shadow: 0 8px 20px rgba(41, 114, 235, 0.2);
}

.hero-feature svg {
    flex-shrink: 0;
    color: #2972eb; /* Brandeis blue для иконок */
}

/* Hero Image with 3D Monitor Effect */
.hero-image {
    margin-top: 48px;
    perspective: 1200px;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    animation: fadeInUp 0.8s ease-out 0.5s both;
}

.hero-img {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.1);
    
    /* 3D Transform для эффекта наклоненного монитора */
    transform: 
        perspective(1200px)
        rotateX(15deg)
        rotateY(0deg)
        translateZ(20px);
    
    /* Градиентная тень снизу для реалистичности */
    position: relative;
    transition: all 0.4s ease;
}

.hero-img::before {
    content: '';
    position: absolute;
    top: 100%;
    left: 10%;
    right: 10%;
    height: 20px;
    background: linear-gradient(
        ellipse at center,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.1) 50%,
        transparent 100%
    );
    border-radius: 50%;
    transform: 
        perspective(600px)
        rotateX(75deg)
        translateZ(-10px);
    filter: blur(8px);
    z-index: -1;
}

.hero-img:hover {
    transform: 
        perspective(1200px)
        rotateX(25deg)
        rotateY(0deg)
        translateZ(0px)
        scale(1.02);
    
    box-shadow: 
        0 30px 60px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(255, 255, 255, 0.2);
}

/* Дополнительный контейнер для лучшего 3D эффекта */
.hero-image::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80%;
    height: 60%;
    background: linear-gradient(
        135deg,
        rgba(41, 114, 235, 0.1) 0%,
        rgba(112, 152, 224, 0.05) 100%
    );
    border-radius: 50%;
    transform: 
        translate(-50%, -50%)
        perspective(800px)
        rotateX(75deg)
        translateZ(-50px);
    filter: blur(20px);
    z-index: -1;
    opacity: 0.6;
}

/* Section Styles */
.section-badge {
    display: inline-block;
    padding: 6px 12px;
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 100%); /* Обновленный градиент */
    color: white;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(24px, 4vw, 40px);
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: #64748b;
    line-height: 1.6;
}

/* Benefits Section */
.benefits-section {
    padding: 80px 0;
    padding-bottom: 40px;
    background: linear-gradient(180deg, #ffffff 0%, #f9fafc 100%); /* Легкий градиент */
}

.benefits-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.benefits-header {
    margin-bottom: 64px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.benefit-card {
    padding: 32px;
    background: rgba(255, 255, 255, 0.9); /* Полупрозрачный белый */
    border-radius: 16px;
    /* text-align: center; */
    transition: all 0.3s ease;
    border: 1px solid rgba(192, 214, 252, 0.3); /* Periwinkle граница */
    opacity: 0;
    transform: translateY(30px);
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.05); /* Легкая синяя тень */
}

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

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(41, 114, 235, 0.15); /* Синяя тень */
    background: white;
    border-color: rgba(41, 114, 235, 0.2);
}

.benefit-icon {
    font-size: 48px;
    margin-bottom: 24px;
    display: block;
}

.benefit-title {
    font-size: 20px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 16px;
}

.benefit-description {
    color: #64748b;
    line-height: 1.6;
}

/* AI Tools Section */
.ai-tools-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #f9fafc 0%, #c0d6fc 50%, rgba(41, 114, 235, 0.1) 100%); /* Градиент как в главном блоке */
}

.ai-tools-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.tool-card {
    padding: 24px;
    background: rgba(255, 255, 255, 0.95); /* Полупрозрачный белый */
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 1px solid rgba(192, 214, 252, 0.4); /* Periwinkle граница */
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.08); /* Легкая синяя тень */
    opacity: 0;
    transform: translateY(30px);
}

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

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(41, 114, 235, 0.2); /* Синяя тень */
    border-color: rgba(41, 114, 235, 0.3);
}

.tool-icon {
    font-size: 32px;
    
    
}

.tool-name {
    font-size: 18px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
}

.tool-description {
    color: #64748b;
    font-size: 14px;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    padding-bottom: 40px;
    background: linear-gradient(180deg, #ffffff 0%, #f9fafc 100%); /* Легкий градиент */
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.feature-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-bottom: 80px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

.feature-item:nth-child(even) {
    direction: rtl;
}

.feature-item:nth-child(even) .feature-content {
    direction: ltr;
}

.feature-content h3 {
    font-size: 28px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 16px;
}

.feature-content p {
    color: #64748b;
    margin-bottom: 24px;
    font-size: 16px;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: #475569;
}

.feature-list svg {
    flex-shrink: 0;
    color: #2972eb; /* Brandeis blue вместо зеленого */
}

.feature-visual {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(192, 214, 252, 0.3) 100%); /* Градиент в палитре */
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    border: 1px solid rgba(192, 214, 252, 0.4); /* Periwinkle граница */
    transition: all 0.3s ease;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.05); /* Легкая синяя тень */
}

.feature-visual:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 24px rgba(41, 114, 235, 0.15); /* Синяя тень */
    border-color: rgba(41, 114, 235, 0.3);
}

.feature-visual-content {
    font-size: 32px;
    color: #64748b;
    word-break: break-word;
}

.feature-image {
    max-width: 100%;
    max-height: 350px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
}

/* Mobile specific styles for feature-visual */
@media (max-width: 768px) {
    .feature-visual {
        padding: 16px;
        min-height: 80px;
    }
    
    .feature-visual-content {
        font-size: 24px;
        line-height: 1.2;
    }
    
    .feature-image {
        max-height: 60px;
    }
}

@media (max-width: 480px) {
    .feature-visual {
        padding: 12px;
        min-height: 60px;
    }
    
    .feature-visual-content {
        font-size: 18px;
        line-height: 1.3;
    }
    
    .feature-image {
        max-height: 45px;
    }
}

/* Pricing Section */
.pricing-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #f9fafc 0%, #c0d6fc 50%, rgba(41, 114, 235, 0.1) 100%); /* Градиент как в главном блоке */
}

.pricing-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    align-items: start;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.95); /* Полупрозрачный белый */
    border-radius: 16px;
    padding: 16px;
    border: 1px solid rgba(192, 214, 252, 0.4); /* Periwinkle граница */
    transition: all 0.3s ease;
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.08); /* Легкая синяя тень */
}

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

.pricing-card.featured {
    border: 2px solid #2972eb; /* Brandeis blue */
    transform: scale(1.05);
    box-shadow: 0 12px 24px rgba(41, 114, 235, 0.3); /* Синяя тень */
}

.pricing-card.featured.animate-in {
    transform: scale(1);
}

.pricing-card.featured::before {
    content: 'Популярный';
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 100%); /* Обновленный градиент */
    color: white;
    padding: 4px 8px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-card:hover:not(.featured) {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(41, 114, 235, 0.15); /* Синяя тень */
    border-color: rgba(41, 114, 235, 0.3);
}

.pricing-header {
    text-align: left;
    margin-bottom: 12px;
    margin-top: 12px;
}

.pricing-title {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 8px;
}

.pricing-description {
    color: #64748b;
    font-size: 14px;
}

.pricing-tokens {
    margin-bottom: 16px;
}

.token-count {
    font-size: 32px;
    font-weight: 700;
    color: #1e293b;
}

.token-label {
    color: #64748b;
    font-size: 14px;
    margin-left: 4px;
}

.pricing-price {
    text-align: left;
    margin-bottom: 24px;
}

.price-current {
    font-size: 48px;
    font-weight: 800;
    color: #1e293b;
}

.price-period {
    color: #64748b;
    font-size: 16px;
    margin-left: 4px;
}

.price-original {
    display: block;
    color: #94a3b8;
    text-decoration: line-through;
    font-size: 14px;
    margin-top: 4px;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: 32px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    color: #475569;
    font-size: 14px;
}

.pricing-features svg {
    flex-shrink: 0;
    color: #2972eb; /* Brandeis blue вместо зеленого */
}

.pricing-button {
    text-align: center;
}

.pricing-button .btn-primary,
.pricing-button .btn-secondary {
    width: 100%;
    justify-content: center;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 100%); /* Обновленный градиент */
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-subtitle {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
    line-height: 1.6;
}

/* Coming Soon Section */
.coming-soon-section {
    padding: 80px 0;
    padding-bottom: 40px;
    background: linear-gradient(180deg, #ffffff 0%, #f9fafc 100%); /* Легкий градиент */
}

.coming-soon-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.coming-soon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.coming-soon-card {
    padding: 32px;
    background: rgba(255, 255, 255, 0.9); /* Полупрозрачный белый */
    border-radius: 16px;
    border: 1px solid rgba(192, 214, 252, 0.3); /* Periwinkle граница */
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.05); /* Легкая синяя тень */
}

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

.coming-soon-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(41, 114, 235, 0.15); /* Синяя тень */
    background: white;
    border-color: rgba(41, 114, 235, 0.2);
}

.coming-soon-card h4 {
    font-size: 20px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 12px;
}

.coming-soon-card p {
    color: #64748b;
    line-height: 1.6;
}

/* FAQ Section */
.faq-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #f9fafc 0%, #c0d6fc 50%, rgba(41, 114, 235, 0.1) 100%); /* Градиент как в главном блоке */
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
}

.faq-list {
    margin-top: 48px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.95); /* Полупрозрачный белый */
    border-radius: 12px;
    margin-bottom: 16px;
    border: 1px solid rgba(192, 214, 252, 0.4); /* Periwinkle граница */
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.05); /* Легкая синяя тень */
}

.faq-item:hover {
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.15); /* Синяя тень */
    border-color: rgba(41, 114, 235, 0.2);
}

.faq-question {
    width: 100%;
    padding: 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: #1e293b;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background: rgba(41, 114, 235, 0.05); /* Легкий синий оттенок */
}

.faq-icon {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 20px 24px 20px 24px;
}

.faq-answer p {
    color: #64748b;
    line-height: 1.6;
}

/* Footer */
.landing-footer {
    background: linear-gradient(135deg, #1a1a1a 0%,  #2972eb 100%); /* Градиент с синим */
    color: white;
    padding: 64px 0 32px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo-text {
    font-size: 20px;
    font-weight: 700;
}

.footer-description {
    color: #94a3b8;
    margin-bottom: 24px;
    line-height: 1.6;
}

.footer-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, #7098e0 0%, #c0d6fc 100%); /* Обратный градиент */
    color: #1a1a1a; /* Темный текст на светлом фоне */
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: transform 0.3s ease;
}

.footer-cta:hover {
    transform: translateY(-2px);
}

.footer-section h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 8px;
    color: #94a3b8;
    font-size: 14px;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copyright {
    color: #94a3b8;
    font-size: 14px;
}

.footer-legal {
    display: flex;
    list-style: none;
    gap: 24px;
    margin: 0;
    padding: 0;
}

.footer-legal a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-legal a:hover {
    color: white;
}

/* Coin Packages Section */
.coin-packages-section {
    padding: 80px 0;
    background: linear-gradient(180deg, #f9fafc 0%, #c0d6fc 50%, rgba(41, 114, 235, 0.1) 100%); /* Градиент как в главном блоке */
}

.coin-packages-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.coin-packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.plan-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 100%); /* Обновленный градиент */
    color: white;
    padding: 4px 8px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    text-wrap-mode: nowrap;
}

/* Стили для бейджика скидки в заголовке */
.plan-yearly-discount-badge {
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 100%); /* Обновленный градиент */
    color: white;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    width: fit-content;
}

.coin-package-card {
    background: rgba(255, 255, 255, 0.95); /* Полупрозрачный белый */
    border: 2px solid rgba(192, 214, 252, 0.4); /* Periwinkle граница */
    border-radius: 20px;
    padding: 16px;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    opacity: 0;
    transform: translateY(20px);
    box-shadow: 0 4px 12px rgba(41, 114, 235, 0.08); /* Легкая синяя тень */
}

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

.coin-package-card.featured {
    border-color: #2972eb; /* Brandeis blue */
    transform: scale(1);
    box-shadow: 0 12px 24px rgba(41, 114, 235, 0.3); /* Синяя тень */
}

.coin-package-card:hover:not(.featured) {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(41, 114, 235, 0.15); /* Синяя тень */
    border-color: rgba(41, 114, 235, 0.3);
}

.package-badge {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 100%); /* Обновленный градиент */
    color: white;
    padding: 6px 16px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
}

.coin-package-header {
    margin-bottom: 12px;
}

.package-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.coin-package-title {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 8px;
}

.coin-package-description {
    color: #64748b;
    font-size: 14px;
    line-height: 1.5;
}

.coin-package-price {
    margin-bottom: 24px;
}

.coin-package-benefits .benefit-icon {
    margin: 0;
    font-size: 16px;
}

.coin-package-price .price-current {
    font-size: 48px;
    font-weight: 800;
    color: #1e293b;
}

.coin-package-price .price-period {
    font-size: 18px;
    font-weight: 600;
    color: #64748b;
}

.package-coins {
    font-size: 20px;
    font-weight: 600;
    color: #2972eb; /* Brandeis blue */
    margin: 8px 0;
}

.package-cost-per-coin {
    font-size: 14px;
    color: #64748b;
}

.coin-package-benefits {
    margin-bottom: 12px;
    text-align: left;
}

.coin-package-benefits strong {
    display: block;
    margin-bottom: 12px;
    font-weight: 600;
    color: #1e293b;
}

.coin-package-benefits ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.coin-package-benefits li {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    color: #475569;
    font-size: 14px;
}

.benefit-icon {
    font-size: 32px;
    color: #2972eb; /* Brandeis blue */
}

.coin-package-button {
    margin-top: auto;
}

.coin-package-button .btn-primary,
.coin-package-button .btn-secondary {
    width: 100%;
    justify-content: center;
}

/* Стили для системы табов на главной странице */
.plans-tabs {
    margin-bottom: 36px;
}

.tabs-navigation {
    display: flex;
    background: #f8fafc;
    border-radius: 16px;
    padding: 6px;
    gap: 4px;
    border: 2px solid #e2e8f0;
    max-width: 600px;
    /* margin: 0 auto; */
}

.tab-button {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    color: #64748b;
    position: relative;
    min-height: 48px;
}

.tab-button:hover {
    background: rgba(41, 114, 235, 0.05); /* Легкий синий оттенок */
    color: #2972eb; /* Brandeis blue */
}

.tab-button.active {
    background: white;
    color: #2972eb; /* Brandeis blue */
    box-shadow: 0 2px 8px rgba(41, 114, 235, 0.1); /* Синяя тень */
    font-weight: 600;
}

.tab-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.tab-text {
    white-space: nowrap;
}

.tab-discount {
    background: linear-gradient(135deg, #2972eb 0%, #7098e0 100%); /* Обновленный градиент */
    color: white;
    padding: 2px 6px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    margin-left: 4px;
    animation: pulse-discount 2s infinite;
}

@keyframes pulse-discount {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

/* Контент табов */
.tabs-content {
    margin-top: 24px;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .feature-item {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .feature-item:nth-child(even) {
        direction: ltr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .landing-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .header-container {
        padding: 0 16px;
    }
    
    .hero-container,
    .benefits-container,
    .ai-tools-container,
    .features-container,
    .pricing-container,
    .coming-soon-container,
    .faq-container {
        padding: 0 16px;
        text-align: left;
    }
    
    .hero-section {
        padding: 120px 0 60px;
    }
    
    .benefits-section,
    .ai-tools-section,
    .features-section,
    .pricing-section,
    .coming-soon-section,
    .faq-section,
    .cta-section {
        padding: 32px 0;
    }

    .benefits-header {
        margin-bottom: 32px;
    }

    .footer-copyright {
        text-align: left;
        width: 100%;
    }
    
    .hero-features {
        grid-template-columns: 1fr;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 16px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured.animate-in {
        transform: none;
    }
    
    .coming-soon-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .footer-bottom {
        flex-direction: column;
    }
    
    .footer-legal {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    
    /* Адаптивные стили для навигации табов */
    .tabs-navigation {
        flex-direction: column;
        gap: 8px;
        max-width: none;
        padding: 8px;
    }
    
    .tab-button {
        flex-direction: row;
        justify-content: flex-start;
        padding: 16px 20px;
        text-align: left;
        min-height: auto;
        border-radius: 8px;
    }
    
    .tab-discount {
        margin-left: auto;
        margin-right: 0;
    }
    
    .tab-icon {
        font-size: 20px;
    }
    
    .tab-text {
        font-size: 15px;
        font-weight: 500;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .section-subtitle {
        font-size: 16px;
    }
    
    .benefit-card,
    .tool-card,
    .pricing-card,
    .coming-soon-card {
        padding: 24px;
    }
    
    .cta-title {
        font-size: 24px;
    }
    
    .cta-subtitle {
        font-size: 16px;
    }
    
    /* Дополнительные мобильные стили для табов */
    .tab-button {
        padding: 14px 16px;
        font-size: 14px;
    }
    
    .tab-icon {
        font-size: 18px;
    }
    
    .tab-text {
        font-size: 14px;
    }
    
    .tab-discount {
        font-size: 9px;
        padding: 1px 4px;
    }
    .hero-badge {
        padding: 6px 12px;
        margin-right: 4px;
        margin-bottom: 8px;
    }
    .hero-title {
        margin-top: 16px;
    }
}

/* Мобильная адаптация */
@media (max-width: 768px) {
    .hero-image {
        margin-top: 32px;
        perspective: 800px;
    }
    
    .hero-img {
        transform: 
            perspective(800px)
            rotateX(10deg)
            rotateY(0deg)
            translateZ(15px);
    }
    
    .hero-img:hover {
        transform: 
            perspective(800px)
            rotateX(8deg)
            rotateY(0deg)
            translateZ(20px)
            scale(1.01);
    }
}

@media (max-width: 480px) {
    .hero-image {
        margin-top: 80px;
        perspective: 600px;
    }
    
    .hero-img {
        border-radius: 12px;
        transform: 
            perspective(600px)
            rotateX(8deg)
            rotateY(0deg)
            translateZ(10px);
    }
    
    .hero-img:hover {
        transform: 
            perspective(600px)
            rotateX(6deg)
            rotateY(0deg)
            translateZ(15px);
    }
    .header-cta .btn-primary {
        padding: 8px 12px;
        font-size: 14px;
    }
    .header-cta .btn-primary svg {
        display:none;
    }
    .landing-logo-text {
        font-size: 16px;
    }
    .landing-logo {
        gap: 6px;
    }
}

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

@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* Interactive Elements */

.btn-primary:focus,
.btn-secondary:focus,
.btn-white:focus {
    outline: 2px solid #2972eb; /* Brandeis blue */
    outline-offset: 2px;
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Scroll animations with stagger effect */
.benefit-card:nth-child(1) { animation-delay: 0.1s; }
.benefit-card:nth-child(2) { animation-delay: 0.2s; }
.benefit-card:nth-child(3) { animation-delay: 0.3s; }
.benefit-card:nth-child(4) { animation-delay: 0.4s; }

.tool-card:nth-child(1) { animation-delay: 0.1s; }
.tool-card:nth-child(2) { animation-delay: 0.15s; }
.tool-card:nth-child(3) { animation-delay: 0.2s; }
.tool-card:nth-child(4) { animation-delay: 0.25s; }
.tool-card:nth-child(5) { animation-delay: 0.3s; }
.tool-card:nth-child(6) { animation-delay: 0.35s; }
.tool-card:nth-child(7) { animation-delay: 0.4s; }
.tool-card:nth-child(8) { animation-delay: 0.45s; }

.pricing-card:nth-child(1) { animation-delay: 0.1s; }
.pricing-card:nth-child(2) { animation-delay: 0.2s; }
.pricing-card:nth-child(3) { animation-delay: 0.3s; }

.coming-soon-card:nth-child(1) { animation-delay: 0.1s; }
.coming-soon-card:nth-child(2) { animation-delay: 0.2s; }
.coming-soon-card:nth-child(3) { animation-delay: 0.3s; }
.coming-soon-card:nth-child(4) { animation-delay: 0.4s; }
.coming-soon-card:nth-child(5) { animation-delay: 0.5s; }

/* Мерцающие частицы */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(41, 114, 235, 0.7); /* Brandeis blue */
    border-radius: 50%;
    animation: particleFloat 8s ease-in-out infinite;
}

.particle-1 {
    top: 15%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 12s;
    background: rgba(41, 114, 235, 0.8); /* Brandeis blue */
}

.particle-2 {
    top: 25%;
    right: 15%;
    animation-delay: -2s;
    animation-duration: 10s;
    background: rgba(112, 152, 224, 0.7); /* Cornflower blue */
}

.particle-3 {
    top: 45%;
    left: 25%;
    animation-delay: -4s;
    animation-duration: 14s;
    background: rgba(192, 214, 252, 0.9); /* Periwinkle */
}

.particle-4 {
    top: 65%;
    right: 30%;
    animation-delay: -6s;
    animation-duration: 11s;
    background: rgba(41, 114, 235, 0.6); /* Brandeis blue */
}

.particle-5 {
    top: 80%;
    left: 60%;
    animation-delay: -8s;
    animation-duration: 13s;
    background: rgba(112, 152, 224, 0.8); /* Cornflower blue */
}

.particle-6 {
    top: 35%;
    left: 75%;
    animation-delay: -10s;
    animation-duration: 9s;
    background: rgba(192, 214, 252, 0.7); /* Periwinkle */
}

.particle-7 {
    top: 55%;
    left: 5%;
    animation-delay: -12s;
    animation-duration: 15s;
    background: rgba(41, 114, 235, 0.5); /* Brandeis blue */
}

.particle-8 {
    top: 75%;
    right: 10%;
    animation-delay: -14s;
    animation-duration: 8s;
    background: rgba(112, 152, 224, 0.6); /* Cornflower blue */
}

@keyframes particleFloat {
    0%, 100% {
        opacity: 0;
        transform: translateY(0) scale(0.5);
    }
    10% {
        opacity: 1;
        transform: translateY(-10px) scale(1);
    }
    50% {
        opacity: 0.8;
        transform: translateY(-20px) scale(1.2);
    }
    90% {
        opacity: 1;
        transform: translateY(-10px) scale(1);
    }
}