:root {
    --primary-900: #0a2540;
    --primary-700: #123a63;
    --primary-500: #1d63f2;
    --primary-400: #4c8dff;
    --accent-500: #12c6a1;
    --accent-400: #5ae0c7;
    --neutral-100: #f5f7fb;
    --neutral-200: #e6ebf4;
    --neutral-300: #c6d0e0;
    --neutral-600: #4b5569;
    --neutral-800: #1c2333;
}

html {
    scroll-behavior: smooth;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--neutral-800);
    background-color: #ffffff;
}

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

.page-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    position: sticky;
    top: 0;
    z-index: 80;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid rgba(12, 42, 85, 0.08);
}

.nav-bar {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.15rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.02em;
    color: var(--primary-900);
}

.brand-logo {
    display: inline-flex;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(140deg, var(--primary-500), var(--accent-500));
    color: #fff;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
}

nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
    font-size: 0.95rem;
    font-weight: 500;
}

nav li a {
    color: var(--neutral-600);
    transition: color 0.2s ease, transform 0.2s ease;
}

nav li a:hover,
nav li a:focus {
    color: var(--primary-500);
    transform: translateY(-1px);
}

.mobile-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid rgba(10, 37, 64, 0.08);
    background: rgba(248, 250, 255, 0.7);
    align-items: center;
    justify-content: center;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 0.65rem 1.4rem;
    font-size: 0.95rem;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button-primary {
    background: var(--primary-500);
    color: #fff;
    box-shadow: 0 14px 35px -18px rgba(10, 37, 64, 0.65);
}

.button-primary:hover {
    transform: translateY(-1px);
    background: var(--primary-400);
}

.button-outline {
    background: rgba(18, 58, 99, 0.04);
    color: var(--primary-700);
    border: 1px solid rgba(18, 58, 99, 0.1);
}

main {
    flex: 1;
}

section {
    padding: 5.5rem 1.5rem;
}

.section-shell {
    max-width: 1200px;
    margin: 0 auto;
}

.section-tag {
    display: inline-flex;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    background: rgba(29, 99, 242, 0.12);
    color: var(--primary-500);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 3vw + 1rem, 3.2rem);
    line-height: 1.12;
    margin-bottom: 1rem;
    color: var(--primary-900);
}

.section-lead {
    max-width: 680px;
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--neutral-600);
    margin-bottom: 2.5rem;
}

.hero-section {
    padding-top: 7rem;
    background: linear-gradient(180deg, rgba(248, 250, 255, 0.9) 0%, rgba(255, 255, 255, 0.95) 45%, #ffffff 100%);
}

.hero-grid {
    display: grid;
    gap: 2.5rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    align-items: center;
}

.hero-eyebrow {
    font-weight: 600;
    color: var(--accent-500);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw + 1rem, 3.8rem);
    line-height: 1.05;
    margin: 1rem 0 1.5rem;
    color: var(--primary-900);
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--neutral-600);
    max-width: 560px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin: 2.2rem 0;
}

.stat-grid {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.stat-card {
    flex: 1 1 160px;
    background: #fff;
    border-radius: 18px;
    padding: 1.4rem;
    box-shadow: 0 18px 38px -28px rgba(10, 37, 64, 0.5);
    border: 1px solid rgba(29, 99, 242, 0.08);
}

.stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-500);
}

.stat-label {
    color: var(--neutral-600);
    font-size: 0.9rem;
    margin-top: 0.4rem;
}

.hero-illustration {
    background: radial-gradient(circle at top left, rgba(18, 198, 161, 0.4), transparent 55%),
                radial-gradient(circle at bottom right, rgba(29, 99, 242, 0.4), transparent 65%),
                var(--primary-900);
    border-radius: 28px;
    padding: clamp(2rem, 5vw, 3.5rem);
    color: #e8f1ff;
    position: relative;
    overflow: hidden;
}

.hero-illustration::after {
    content: '';
    position: absolute;
    inset: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 22px;
    pointer-events: none;
}

.hero-illustration h3 {
    margin: 0 0 1rem;
    font-size: 1.4rem;
    letter-spacing: 0.02em;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.highlight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.75rem;
}

.highlight-card {
    padding: 2rem;
    border-radius: 22px;
    background: var(--neutral-100);
    border: 1px solid rgba(18, 58, 99, 0.08);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.highlight-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 45px -35px rgba(10, 37, 64, 0.8);
}

.highlight-card h3 {
    margin-top: 0;
    margin-bottom: 0.85rem;
    font-size: 1.2rem;
    color: var(--primary-700);
}

.highlight-card p {
    margin: 0;
    color: var(--neutral-600);
    line-height: 1.7;
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.75rem;
}

.module-card {
    padding: 2.2rem;
    border-radius: 24px;
    background: #ffffff;
    border: 1px solid rgba(18, 58, 99, 0.08);
    box-shadow: 0 18px 45px -32px rgba(10, 37, 64, 0.5);
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.module-card h3 {
    margin: 0;
    font-size: 1.35rem;
    color: var(--primary-900);
}

.module-card p {
    margin: 0;
    color: var(--neutral-600);
}

.module-features {
    padding-left: 1.1rem;
    margin: 0;
    display: grid;
    gap: 0.6rem;
    color: var(--neutral-600);
}

.module-features li {
    position: relative;
    list-style: none;
}

.module-features li::before {
    content: '';
    position: absolute;
    left: -1.1rem;
    top: 0.5rem;
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--accent-500);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.75rem;
}

.pricing-card {
    border-radius: 26px;
    padding: 2.25rem;
    background: #ffffff;
    border: 1px solid rgba(18, 58, 99, 0.08);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.3rem;
    box-shadow: 0 20px 45px -38px rgba(12, 37, 70, 0.65);
}

.pricing-card.recommended {
    border: 1.5px solid var(--accent-500);
    box-shadow: 0 30px 80px -48px rgba(18, 198, 161, 0.65);
}

.pricing-badge {
    position: absolute;
    top: -14px;
    right: 18px;
    background: var(--accent-500);
    color: #fff;
    font-size: 0.75rem;
    padding: 0.35rem 0.8rem;
    border-radius: 999px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.pricing-card h3 {
    margin: 0;
    font-size: 1.4rem;
    color: var(--primary-900);
}

.pricing-price {
    font-size: 1.1rem;
    color: var(--accent-500);
    font-weight: 600;
}

.pricing-description {
    margin: 0;
    color: var(--neutral-600);
    line-height: 1.7;
}

.pricing-list {
    margin: 0;
    padding-left: 1.1rem;
    display: grid;
    gap: 0.55rem;
    color: var(--neutral-600);
}

.integrations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
}

.integration-chip {
    padding: 0.85rem 1.2rem;
    border-radius: 14px;
    background: rgba(18, 58, 99, 0.06);
    border: 1px solid rgba(18, 58, 99, 0.1);
    font-weight: 600;
    color: var(--primary-700);
}

.testimonials {
    background: linear-gradient(160deg, rgba(10, 37, 64, 0.94), rgba(18, 198, 161, 0.1));
    color: #f6fbff;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.75rem;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.04);
    border-radius: 22px;
    padding: 2.2rem;
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(6px);
}

.testimonial-quote {
    font-size: 1.12rem;
    line-height: 1.75;
    margin-bottom: 1.6rem;
}

.testimonial-author {
    font-weight: 600;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

details {
    border-radius: 16px;
    background: rgba(240, 244, 250, 0.6);
    border: 1px solid rgba(18, 58, 99, 0.08);
    padding: 1.2rem 1.4rem;
}

summary {
    font-weight: 600;
    cursor: pointer;
    color: var(--primary-700);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

details p {
    margin: 0;
    padding-top: 0.9rem;
    color: var(--neutral-600);
    line-height: 1.7;
}

.contact-card {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    background: var(--neutral-100);
    border-radius: 26px;
    padding: 2.8rem;
    border: 1px solid rgba(18, 58, 99, 0.08);
}

.contact-card h3 {
    margin-top: 0;
    color: var(--primary-900);
}

.contact-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 1.1rem;
    color: var(--neutral-600);
}

.contact-list a {
    color: var(--primary-700);
    font-weight: 600;
}

footer {
    padding: 2.5rem 1.5rem 3rem;
    border-top: 1px solid rgba(12, 37, 70, 0.08);
    background: #fbfcfe;
}

.footer-shell {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: center;
    color: var(--neutral-600);
    font-size: 0.92rem;
}

@media (max-width: 960px) {
    .nav-bar {
        flex-wrap: wrap;
        gap: 1.2rem;
    }

    nav {
        width: 100%;
        display: none;
    }

    nav.open {
        display: block;
    }

    nav ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        padding-top: 1rem;
    }

    .nav-actions {
        width: 100%;
        justify-content: flex-start;
        gap: 0.75rem;
    }

    .mobile-toggle {
        display: inline-flex;
    }

    section {
        padding: 4.5rem 1.25rem;
    }

    .hero-section {
        padding-top: 6rem;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: clamp(2.3rem, 6vw, 3rem);
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-illustration {
        padding: 2rem;
    }

    .contact-card {
        padding: 2rem;
    }

    .hero-actions .button {
        width: 100%;
        justify-content: center;
    }
}