:root {
    --primary: #0066FF;
    --primary-glow: rgba(0, 102, 255, 0.4);
    --accent: #FFD700;
    --text-main: #1d1d1f;
    --text-muted: #86868b;
    --bg-main: #fbfbfd;
    --bg-card: #ffffff;
    --bg-glass: rgba(251, 251, 253, 0.8);
    --border: rgba(0, 0, 0, 0.08);
    --success: #34c759;
    --warning: #ff9f0a;
    --radius-pill: 50px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --font-main: 'Outfit', sans-serif;
    --transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
    --bg-main: #000000;
    --bg-card: #1c1c1e;
    --bg-glass: rgba(0, 0, 0, 0.8);
    --text-main: #f5f5f7;
    --text-muted: #a1a1a6;
    --border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-main);
    overflow-x: hidden;
    transition: background-color 0.4s ease;
}

#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

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

/* --- UTILITIES --- */
.section-padding {
    padding: 120px 0;
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
}

/* --- HEADER --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-main);
    text-decoration: none;
    flex-shrink: 0;
}

.logo i {
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 14px;
    font-weight: 500;
    opacity: 0.8;
    transition: var(--transition);
}

.nav-links a:hover {
    opacity: 1;
    color: var(--primary);
}

/* --- CONTROLS --- */
.nav-controls {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.controls-pill {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    padding: 4px;
    gap: 4px;
}

.pill-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.pill-btn:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--primary);
}

[data-theme="dark"] .pill-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}

.pill-divider {
    width: 1px;
    height: 18px;
    background: var(--border);
    margin: 0 4px;
}

.btn-kirish {
    padding: 0 24px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    border: none;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    white-space: nowrap;
}

.btn-kirish:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px var(--primary-glow);
}

/* --- HERO --- */
.hero {
    padding-top: 180px;
    padding-bottom: 100px;
}

.hero-grid {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1.2;
}

.badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(0, 102, 255, 0.08);
    color: var(--primary);
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 58px;
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.hero h1 span {
    color: var(--primary);
}

.hero p {
    font-size: 19px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 60px;
}

.btn-main {
    padding: 16px 36px;
    border-radius: 14px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-gradient {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    box-shadow: 0 8px 24px var(--primary-glow);
}

.btn-outline {
    background: rgba(0, 0, 0, 0.03);
    color: var(--text-main);
    border: 1px solid var(--border);
}

.hero-visual img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.1);
}

/* --- STATS --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
    border-top: 1px solid var(--border);
    padding-top: 40px;
}

.stat-item h3 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
}

.stat-item p {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 4px;
}

/* --- SERVICES --- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--bg-card);
    padding: 40px 30px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    transition: var(--transition);
    text-align: center;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(0, 102, 255, 0.05);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--primary);
    margin: 0 auto 24px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--primary);
    color: white;
}

.service-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-muted);
}

/* --- PRICING --- */
.pricing-section {
    background: var(--bg-main);
}

.slider-controls {
    display: none;
}

.period-selector-container {
    display: flex;
    justify-content: center;
    margin-top: 30px;
}

.period-selector {
    display: flex;
    background: var(--bg-card);
    padding: 6px;
    border-radius: 16px;
    border: 1px solid var(--border);
    gap: 4px;
}

.period-btn {
    padding: 10px 24px;
    border-radius: 12px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.period-btn.selected {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px var(--primary-glow);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.price-card {
    background: var(--bg-card);
    padding: 48px 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.price-card:hover {
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
}

.price-card.popular {
    border: 2px solid var(--primary);
    transform: scale(1.02);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 700;
}

.price-header {
    text-align: center;
    margin-bottom: 30px;
}

.price-amount {
    font-size: 40px;
    font-weight: 700;
    margin: 15px 0;
}

.price-amount small {
    font-size: 16px;
    color: var(--text-muted);
}

.savings-badge {
    background: rgba(52, 199, 89, 0.1);
    color: var(--success);
    padding: 8px 12px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 600;
    display: inline-block;
}

.feature-list {
    list-style: none;
    margin: 0 0 40px;
    flex-grow: 1;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 15px;
    color: var(--text-muted);
}

.feature-list i {
    color: var(--success);
}

.btn-uzum {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #7000FF, #A64FFF);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-uzum:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(112, 0, 255, 0.3);
}

/* --- MODALS --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
}

.auth-modal {
    background: var(--bg-card);
    width: 100%;
    max-width: 420px;
    padding: 40px;
    border-radius: var(--radius-lg);
    position: relative;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-muted);
}

.installment-option {
    transition: var(--transition);
}

.installment-option.selected {
    border-color: var(--primary) !important;
    background: rgba(0, 102, 255, 0.05) !important;
}

.installment-option.selected div {
    color: var(--primary) !important;
}

/* --- FOOTER --- */
footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border);
    background: var(--bg-card);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-col h4 {
    margin-bottom: 24px;
    font-size: 16px;
    font-weight: 600;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 14px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.03);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-main);
    transition: var(--transition);
}

.social-btn:hover {
    background: var(--primary);
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 13px;
}

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 968px) {
    .nav-links {
        display: none;
    }

    .hero-grid {
        flex-direction: column;
        text-align: center;
    }

    .hero-visual {
        display: none;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero p {
        margin: 0 auto 40px;
    }

    .services-grid {
        grid-template-columns: 1fr 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 42px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .section-padding {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 30px;
    }

    .services-container,
    .pricing-container {
        overflow: hidden;
        margin: 0 -24px;
        padding: 0 24px;
    }

    .services-grid,
    .pricing-grid {
        display: flex;
        grid-template-columns: none;
        gap: 16px;
        transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
        padding-bottom: 20px;
    }

    .slider-controls {
        display: flex;
        justify-content: center;
        gap: 20px;
        margin-top: 20px;
    }

    .slider-nav-btn {
        width: 48px;
        height: 48px;
        border-radius: 50%;
        background: var(--bg-card);
        border: 1px solid var(--border);
        color: var(--primary);
        font-size: 18px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }

    .slider-nav-btn:active {
        transform: scale(0.9);
        background: var(--primary);
        color: white;
    }

    .service-card,
    .price-card {
        flex: 0 0 calc(100% - 32px);
        /* Show one full card and a bit of the next */
        padding: 30px 20px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .nav-controls {
        gap: 8px;
    }

    .btn-kirish {
        padding: 0 16px;
        font-size: 12px;
    }
}