:root {
    --google-blue: #4285f4;
    --google-red: #ea4335;
    --google-yellow: #fbbc04;
    --google-green: #34a853;

    --bg-primary: #0a0a0a;
    --bg-secondary: #121212;
    --bg-card: #1a1a1a;
    --bg-elevated: #242424;

    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --text-muted: #5f6368;

    --border-color: #2d2d2d;
    --border-hover: #404040;

    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 40px rgba(66, 133, 244, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
}

/* === NAVBAR === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: var(--spacing-md) 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 20px;
    font-weight: 500;
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s;
}

.lang-btn:hover {
    background: var(--bg-elevated);
    border-color: var(--border-hover);
}

/* === HERO === */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px var(--spacing-xl) var(--spacing-4xl);
    background: var(--bg-primary);
    overflow: hidden;
}

#iconCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    will-change: contents;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 10;
}

.hero-badges {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.badge-official,
.badge-duration {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.badge-official {
    background: rgba(52, 168, 83, 0.15);
    border: 1px solid rgba(52, 168, 83, 0.3);
    color: var(--google-green);
}

.badge-duration {
    background: rgba(66, 133, 244, 0.15);
    border: 1px solid rgba(66, 133, 244, 0.3);
    color: var(--google-blue);
}

.hero-title {
    font-family: 'Google Sans Display', 'Google Sans', sans-serif;
    font-size: clamp(56px, 12vw, 120px);
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.03em;
}

.title-google {
    color: var(--text-primary);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.title-ai {
    background: linear-gradient(135deg, var(--google-blue) 0%, #8b5cf6 50%, var(--google-red) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    filter: drop-shadow(0 0 60px rgba(66, 133, 244, 0.4));
}

.hero-subtitle {
    font-size: clamp(18px, 3vw, 26px);
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
    line-height: 1.6;
}

/* === PRICE === */
.price-box {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    max-width: 500px;
    margin: 0 auto var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.price-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--google-blue), var(--google-red), var(--google-yellow));
}

.price-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.price-old {
    font-size: 28px;
    color: var(--text-muted);
    text-decoration: line-through;
}

.price-discount {
    background: var(--google-red);
    color: white;
    padding: 6px 16px;
    border-radius: 16px;
    font-size: 18px;
    font-weight: 700;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.price-current {
    font-size: 72px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--google-blue), var(--google-red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.price-note {
    font-size: 14px;
    color: var(--text-secondary);
}

/* === CTA BUTTON === */
.cta-main {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 18px 40px;
    background: var(--google-blue);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-family: 'Google Sans', sans-serif;
    font-size: 17px;
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--shadow-glow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.cta-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.cta-main:hover::before {
    left: 100%;
}

.cta-main:hover {
    background: #1a73e8;
    box-shadow: 0 0 60px rgba(66, 133, 244, 0.5);
    transform: translateY(-3px) scale(1.02);
}

.cta-main:active {
    transform: translateY(-1px) scale(0.98);
}

.cta-main svg {
    transition: transform 0.3s;
}

.cta-main:hover svg {
    transform: translateX(4px);
}

/* === TRUST INDICATORS === */
.trust-indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 14px;
}

/* === CAPABILITIES === */
.capabilities-section {
    padding: var(--spacing-4xl) var(--spacing-xl);
    background: var(--bg-secondary);
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-family: 'Google Sans Display', 'Google Sans', sans-serif;
    font-size: clamp(40px, 7vw, 64px);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-4xl);
    color: var(--text-primary);
}

.capability-category {
    margin-bottom: var(--spacing-4xl);
    padding: var(--spacing-2xl);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all 0.3s;
}

.capability-category:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.category-icon {
    font-size: 48px;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-title {
    font-size: clamp(28px, 5vw, 40px);
    font-weight: 700;
    color: var(--text-primary);
}

.category-desc {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    max-width: 900px;
}

.category-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.3s;
}

.feature-item:hover {
    background: var(--bg-elevated);
    border-color: var(--google-blue);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: var(--radius-md);
}

.feature-icon img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 8px;
}

.feature-icon.emoji {
    font-size: 36px;
}

.feature-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.feature-info p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* === FAQ === */
.faq-section {
    padding: var(--spacing-4xl) var(--spacing-xl);
    background: var(--bg-primary);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
    text-align: left;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: var(--border-hover);
}

.faq-q {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: transparent;
    border: none;
    font-family: 'Google Sans', sans-serif;
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    transition: all 0.3s;
}

.faq-q:hover {
    background: var(--bg-elevated);
}

.faq-icon {
    flex-shrink: 0;
    transition: transform 0.3s;
    color: var(--text-secondary);
}

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

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.active .faq-a {
    max-height: 500px;
    padding: 0 var(--spacing-xl) var(--spacing-lg);
}

.faq-a p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 16px;
}

.faq-footnote {
    display: block;
    font-size: 12px;
    color: var(--text-secondary, #999);
    margin: var(--spacing-xl) auto 0;
    padding: 10px 22px;
    border: 1px solid var(--border-color, rgba(255,255,255,0.12));
    border-radius: 24px;
    background: var(--bg-elevated, rgba(255,255,255,0.04));
    text-align: center;
    max-width: fit-content;
    letter-spacing: 0.02em;
    line-height: 1.5;
}

/* === CTA SECTION === */
.cta-section {
    padding: var(--spacing-4xl) var(--spacing-xl);
    background: linear-gradient(135deg, rgba(66, 133, 244, 0.1) 0%, rgba(234, 67, 53, 0.1) 100%);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: 'Google Sans Display', sans-serif;
    font-size: clamp(32px, 6vw, 52px);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.cta-content p {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
}

a.cta-main {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* === FOOTER === */
.footer {
    padding: var(--spacing-2xl) var(--spacing-xl);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 18px;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-text {
    color: var(--text-secondary);
    font-size: 14px;
}

/* === ANIMATIONS === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideFromLeft {
    from {
        opacity: 0;
        transform: translateX(-300px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideFromRight {
    from {
        opacity: 0;
        transform: translateX(300px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-content>* {
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.hero-badges {
    animation-delay: 0.2s;
}

.hero-title {
    animation-delay: 0.4s;
}

.hero-subtitle {
    animation-delay: 0.6s;
}

.price-box {
    animation-delay: 0.8s;
}

.cta-main {
    animation-delay: 1s;
}

.trust-indicators {
    animation-delay: 1.2s;
}

/* Анимация категорий с разных сторон - запускается через JS при скролле */
.animate-from-left {
    opacity: 0;
}

.animate-from-left.visible {
    animation: slideFromLeft 1s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-from-right {
    opacity: 0;
}

.animate-from-right.visible {
    animation: slideFromRight 1s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Задержки для последовательного появления */
.section-container>.capability-category:nth-of-type(1).visible {
    animation-delay: 0s;
}

.section-container>.capability-category:nth-of-type(2).visible {
    animation-delay: 0.15s;
}

.section-container>.capability-category:nth-of-type(3).visible {
    animation-delay: 0.3s;
}

.section-container>.capability-category:nth-of-type(4).visible {
    animation-delay: 0.45s;
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {

    .nav-container,
    .section-container {
        padding-left: var(--spacing-lg);
        padding-right: var(--spacing-lg);
    }
}

@media (max-width: 768px) {

    /* Скрыть canvas на мобильных */
    #iconCanvas {
        display: none !important;
    }

    .hero-section {
        padding: 60px var(--spacing-md) var(--spacing-xl);
        min-height: auto;
    }

    .hero-title {
        font-size: clamp(28px, 9vw, 48px);
        margin-bottom: var(--spacing-md);
    }

    .title-google,
    .title-ai {
        display: inline;
    }

    .title-google {
        margin-right: 8px;
    }

    .hero-subtitle {
        font-size: 14px;
        margin-bottom: var(--spacing-md);
        line-height: 1.4;
    }

    .price-box {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .price-current {
        font-size: 42px;
    }

    .price-old {
        font-size: 18px;
    }

    .price-badge {
        font-size: 11px;
        padding: 4px 10px;
    }

    /* КОМПАКТНЫЕ КАТЕГОРИИ - только иконка + заголовок */
    .capability-category {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .category-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
        margin-bottom: 0;
    }

    .category-icon {
        font-size: 36px;
        width: 56px;
        height: 56px;
        margin: 0 auto;
    }

    .category-title {
        font-size: 20px;
        margin-bottom: 0;
    }

    /* СКРЫТЬ описание категории на мобильных */
    .category-desc {
        display: none !important;
    }

    /* Фичи - компактнее */
    .category-features {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        margin-top: var(--spacing-md);
    }

    .feature-item {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }

    .feature-icon {
        width: 36px;
        height: 36px;
        flex-shrink: 0;
    }

    .feature-icon img {
        width: 28px;
        height: 28px;
    }

    .feature-info {
        text-align: left;
    }

    .feature-info h4 {
        font-size: 15px;
        margin-bottom: 2px;
    }

    .feature-info p {
        font-size: 12px;
        line-height: 1.4;
    }

    .trust-indicators {
        flex-direction: column;
        gap: var(--spacing-sm);
        font-size: 13px;
    }

    /* Секции компактнее */
    .capabilities-section,
    .faq-section,
    .cta-section {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .section-title {
        font-size: 28px;
        margin-bottom: var(--spacing-lg);
    }

    /* FAQ компактнее */
    .faq-item {
        margin-bottom: var(--spacing-sm);
    }

    .faq-q {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 14px;
        gap: var(--spacing-sm);
    }

    .faq-q span {
        flex: 1;
    }

    .faq-icon {
        width: 18px;
        height: 18px;
    }

    .faq-a {
        padding: 0 var(--spacing-md);
    }

    .faq-item.active .faq-a {
        padding: 0 var(--spacing-md) var(--spacing-sm);
    }

    .faq-a p {
        font-size: 13px;
        line-height: 1.5;
    }

    .faq-footnote {
        font-size: 10px;
        margin-top: var(--spacing-md);
    }

    /* CTA компактнее */
    .cta-main {
        padding: 12px 24px;
        font-size: 14px;
        width: 100%;
    }

    /* Navbar компактнее */
    .navbar {
        padding: var(--spacing-sm) 0;
    }

    .nav-logo img {
        width: 40px;
        height: 40px;
    }

    .nav-logo span {
        font-size: 15px;
    }

    /* Badges компактнее */
    .hero-badges {
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }

    .badge {
        padding: 6px 12px;
        font-size: 11px;
    }

    /* Footer компактнее */
    footer {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .footer-logo img {
        width: 32px;
        height: 32px;
    }
}

@media (max-width: 480px) {
    .hero-badges {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .price-row {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .cta-main {
        width: 100%;
        justify-content: center;
    }

    .feature-item {
        flex-direction: column;
        text-align: center;
    }

    .feature-icon {
        margin: 0 auto;
    }
}