:root {
    --primary: #2f5bff;
    --primary-dark: #2447d6;
    --primary-light: #eaf0ff;
    --accent: #1dbf73;
    --accent-dark: #11935b;
    --text-dark: #0f1c3f;
    --text-mid: #4c5b7d;
    --text-light: #7f8eb2;
    --border: #e3e9f5;
    --card-shadow: 0 18px 40px rgba(20, 45, 110, 0.08);
    --font-display: 'Sora', sans-serif;
    --font-body: 'Manrope', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background: #f7f9fc;
    line-height: 1.6;
    position: relative;
    min-height: 100vh;
}

body::before,
body::after {
    content: '';
    position: fixed;
    z-index: -1;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    filter: blur(10px);
    opacity: 0.7;
}

body::before {
    background: radial-gradient(circle, rgba(47, 91, 255, 0.18), transparent 70%);
    top: -220px;
    right: -120px;
}

body::after {
    background: radial-gradient(circle, rgba(29, 191, 115, 0.16), transparent 70%);
    bottom: -240px;
    left: -160px;
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    width: min(1160px, 90%);
    margin: 0 auto;
}

.site-header {
    background: #ffffff;
    box-shadow: 0 6px 20px rgba(24, 44, 90, 0.06);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
    gap: 16px;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.3px;
    color: var(--text-dark);
}

.nav-links {
    display: flex;
    gap: 24px;
    font-weight: 500;
    color: var(--text-mid);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--text-light);
}

.lang-switch a.active {
    color: var(--primary-dark);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    border-radius: 12px;
    font-weight: 600;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 12px 30px rgba(47, 91, 255, 0.25);
}

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-outline {
    background: #fff;
    color: var(--text-dark);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-light {
    background: #fff;
    color: var(--primary-dark);
}

.btn-dark {
    background: #111827;
    color: #fff;
}

.btn-success {
    background: var(--accent);
    color: #fff;
}

.btn-success:hover {
    background: var(--accent-dark);
}

section {
    padding: 90px 0;
}

.hero {
    padding-top: 80px;
    padding-bottom: 70px;
}

.hero-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
    align-items: center;
}

.hero-content h1 {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 4vw, 3.4rem);
    line-height: 1.1;
    margin-bottom: 18px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.headline-accent {
    color: var(--primary);
}

.hero-subtitle {
    color: var(--text-mid);
    font-size: 1.05rem;
    max-width: 480px;
}

.hero-actions {
    margin-top: 28px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-note {
    margin-top: 18px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.hero-image-wrap {
    background: #fff;
    border-radius: 26px;
    padding: 18px;
    box-shadow: var(--card-shadow);
}

.section-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 36px;
}

.section-head h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.section-head p {
    color: var(--text-mid);
    max-width: 540px;
}

.section-head.centered {
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    text-align: center;
}

.stat-card.highlight {
    border: 2px solid rgba(29, 191, 115, 0.3);
    background: #f2fdf7;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 1.6rem;
    color: var(--primary-dark);
}

.stat-label {
    color: var(--text-light);
    margin-top: 6px;
}

.section-link {
    display: inline-flex;
    color: var(--primary);
    font-weight: 600;
}

.features {
    background: #f8fbff;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
}

.feature-card {
    background: #fff;
    padding: 28px;
    border-radius: 18px;
    box-shadow: var(--card-shadow);
}

.feature-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 18px;
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card ul {
    display: grid;
    gap: 10px;
    color: var(--text-mid);
    font-size: 0.92rem;
}

.pricing-toggle,
.preview-toggle {
    display: inline-flex;
    align-items: center;
    background: #fff;
    border-radius: 999px;
    padding: 4px;
    border: 1px solid var(--border);
    margin: 0 auto 36px;
    gap: 4px;
}

.toggle-btn {
    background: transparent;
    border: none;
    padding: 8px 18px;
    border-radius: 999px;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
}

.toggle-btn.active {
    background: var(--primary);
    color: #fff;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
    align-items: stretch;
}

.pricing-card {
    background: #fff;
    border-radius: 20px;
    padding: 32px 26px;
    border: 1px solid var(--border);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: 0 22px 50px rgba(47, 91, 255, 0.2);
    transform: translateY(-8px);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: #ffe3c0;
    color: #b45309;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
}

.price {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.price-value {
    font-size: 2rem;
    font-family: var(--font-display);
}

.price-period {
    color: var(--text-light);
}

.pricing-card ul {
    display: grid;
    gap: 10px;
    color: var(--text-mid);
    font-size: 0.92rem;
}

.pricing-card ul li::before {
    content: '?';
    margin-right: 8px;
    color: var(--accent);
}

.pricing-note {
    margin-top: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.referral {
    padding-top: 40px;
    padding-bottom: 40px;
}

.referral-card {
    background: #e9fdf3;
    border-radius: 18px;
    padding: 28px 30px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 18px;
    align-items: center;
    border: 1px solid rgba(29, 191, 115, 0.25);
}

.referral-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: #d7f8e6;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
}

.preview {
    background: #f8fbff;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.preview-card {
    background: #fff;
    border-radius: 18px;
    padding: 20px;
    box-shadow: var(--card-shadow);
}

.preview-card h4 {
    margin-top: 16px;
    font-size: 1rem;
    font-weight: 600;
}

.preview-card p {
    color: var(--text-mid);
    font-size: 0.9rem;
    margin-top: 8px;
}

.cta-band {
    background: linear-gradient(120deg, #2f5bff, #2344d7);
    color: #fff;
    padding: 70px 0;
}

.cta-grid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.cta-band h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.cta-band p {
    color: rgba(255, 255, 255, 0.85);
    margin-top: 8px;
    max-width: 520px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
}

.contact-info h2 {
    font-family: var(--font-display);
    font-size: 2rem;
}

.contact-info p {
    color: var(--text-mid);
    margin-top: 10px;
    max-width: 420px;
}

.contact-list {
    margin-top: 26px;
    display: grid;
    gap: 18px;
}

.contact-item {
    background: #fff;
    border-radius: 14px;
    padding: 14px 16px;
    box-shadow: var(--card-shadow);
    display: grid;
    gap: 4px;
}

.contact-label {
    color: var(--text-light);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-form {
    background: #fff;
    border-radius: 20px;
    padding: 28px;
    box-shadow: var(--card-shadow);
}

.contact-form h3 {
    font-family: var(--font-display);
    margin-bottom: 16px;
}

.contact-form form {
    display: grid;
    gap: 16px;
}

.contact-form label {
    display: grid;
    gap: 8px;
    font-weight: 600;
    color: var(--text-mid);
}

.contact-form input,
.contact-form textarea {
    border: 1px solid var(--border);
    padding: 12px 14px;
    border-radius: 12px;
    font-family: var(--font-body);
    font-size: 0.95rem;
}

.field-error {
    color: #d14343;
    font-size: 0.8rem;
}

.form-alert {
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.form-alert.success {
    background: #e7f8ef;
    color: #157a4e;
}

.form-alert.error {
    background: #fde8e8;
    color: #b42318;
}

.site-footer {
    padding: 36px 0;
    background: #fff;
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a:hover {
    color: var(--primary-dark);
}

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

    .pricing-grid,
    .features-grid,
    .preview-grid,
    .stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .cta-grid {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 860px) {
    .nav-links {
        display: none;
    }

    .header-inner {
        flex-wrap: wrap;
    }
}

@media (max-width: 680px) {
    section {
        padding: 70px 0;
    }

    .stats-grid,
    .features-grid,
    .pricing-grid,
    .preview-grid {
        grid-template-columns: 1fr;
    }

    .referral-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .header-actions {
        width: 100%;
        justify-content: space-between;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}