* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: #071326;
    background: #ffffff;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 24px;
    min-height: 78px;
    padding: 14px 4%;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid #dde5ef;
    backdrop-filter: blur(14px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    color: #173765;
    text-decoration: none;
}

.brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: #315b9e;
    color: #ffffff;
    font-weight: 800;
}

.brand-text strong {
    display: block;
    font-size: 1.45rem;
    line-height: 1;
}

.brand-text span {
    display: block;
    margin-top: 5px;
    letter-spacing: 0.22em;
    font-size: 0.72rem;
    color: #5d6978;
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 36px;
}

.main-nav a,
.header-phone {
    color: #173765;
    font-weight: 800;
    text-decoration: none;
}

.header-phone {
    justify-self: end;
    font-size: 1.05rem;
}

.hero {
    position: relative;
    display: grid;
    grid-template-columns: 0.92fr 1.08fr;
    align-items: center;
    gap: 40px;
    min-height: calc(100vh - 78px);
    padding: 7% 4%;
    overflow: hidden;
    background:
        linear-gradient(118deg, #ffffff 0%, #ffffff 48%, #edf4fb 48%, #f6f9fc 100%);
}

.hero-copy {
    position: relative;
    z-index: 2;
    max-width: 780px;
}

.eyebrow {
    display: inline-block;
    margin-bottom: 22px;
    color: #315b9e;
    font-size: 0.82rem;
    font-weight: 900;
    letter-spacing: 0.28em;
    text-transform: uppercase;
}

.eyebrow.dark {
    color: #315b9e;
}

.hero h1 {
    margin: 0 0 28px;
    max-width: 820px;
    font-size: clamp(3.5rem, 6.2vw, 7.2rem);
    line-height: 0.96;
    letter-spacing: -0.075em;
    color: #071326;
}

.hero p {
    max-width: 780px;
    margin: 0 0 34px;
    font-size: clamp(1.1rem, 1.55vw, 1.55rem);
    line-height: 1.55;
    color: #4e5968;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 15px 28px;
    border-radius: 999px;
    font-weight: 900;
    text-decoration: none;
    transition: transform 0.2s ease, background 0.2s ease;
}

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

.btn-primary {
    background: #315b9e;
    color: #ffffff;
}

.btn-secondary {
    border: 1px solid #cfd9e6;
    color: #173765;
    background: #ffffff;
}

.hero-visual {
    position: relative;
    z-index: 1;
    align-self: stretch;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-visual img {
    width: min(100%, 980px);
    filter: drop-shadow(0 32px 70px rgba(23, 55, 101, 0.18));
}

.benefits {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: #dbe5ef;
    gap: 1px;
}

.benefits div {
    padding: 42px 32px;
    background: #f6f9fc;
}

.benefits strong {
    display: block;
    margin-bottom: 10px;
    color: #071326;
    font-size: 1.25rem;
}

.benefits span {
    color: #5d6978;
    line-height: 1.6;
}

.intro-copy {
    max-width: 1050px;
    margin: 0 auto;
    padding: 105px 4% 40px;
    text-align: center;
}

.intro-copy h2,
.section-copy h2,
.workflow h2,
.cta h2 {
    margin: 0 0 18px;
    font-size: clamp(2.3rem, 4.2vw, 4.5rem);
    line-height: 1;
    letter-spacing: -0.055em;
    color: #071326;
}

.intro-copy p,
.section-copy p,
.workflow p,
.cta p {
    font-size: 1.12rem;
    line-height: 1.75;
    color: #5d6978;
}

.product-video,
.workflow {
    padding: 80px 4% 105px;
}

.product-video {
    display: grid;
    grid-template-columns: 0.7fr 1.3fr;
    gap: 60px;
    align-items: center;
}

.video-frame {
    position: relative;
    overflow: hidden;
    border-radius: 28px;
    background: #edf4fb;
    box-shadow: 0 28px 70px rgba(23,55,101,.14);
    aspect-ratio: 16 / 9;
}

.video-frame iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.workflow {
    text-align: center;
    background: #f6f9fc;
}

.workflow-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
    margin-top: 48px;
    text-align: left;
}

.workflow-grid div {
    padding: 36px;
    border-radius: 24px;
    background: #ffffff;
    box-shadow: 0 20px 55px rgba(23, 55, 101, 0.08);
}

.workflow-grid span {
    display: block;
    margin-bottom: 24px;
    color: #315b9e;
    font-size: 2.2rem;
    font-weight: 900;
}

.workflow-grid h3 {
    margin: 0 0 10px;
    font-size: 1.45rem;
}

.cta {
    padding: 110px 4%;
    text-align: center;
    background: linear-gradient(135deg, #071326 0%, #173765 55%, #315b9e 100%);
    color: #ffffff;
}

.cta .eyebrow,
.cta h2 {
    color: #ffffff;
}

.cta h2 {
    max-width: 850px;
    margin-left: auto;
    margin-right: auto;
}

.cta p {
    max-width: 680px;
    margin: 0 auto 34px;
    color: rgba(255, 255, 255, 0.86);
}

.cta .btn-primary {
    background: #ffffff;
    color: #173765;
}

@media (max-width: 1100px) {
    .hero {
        grid-template-columns: 1fr;
        padding-top: 90px;
    }

    .hero h1 {
        font-size: clamp(3.3rem, 10vw, 5.8rem);
    }

    .hero-visual {
        justify-content: flex-start;
    }

    .product-video {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 820px) {
    .site-header {
        grid-template-columns: 1fr auto;
    }

    .main-nav {
        display: none;
    }

    .header-phone {
        font-size: 0.9rem;
    }

    .hero {
        min-height: auto;
        padding: 70px 24px;
        background:
            linear-gradient(150deg, #ffffff 0%, #ffffff 55%, #edf4fb 55%, #f6f9fc 100%);
    }

    .hero h1 {
        font-size: 3.2rem;
    }

    .benefits,
    .workflow-grid {
        grid-template-columns: 1fr;
    }

    .intro-copy,
    .product-video,
    .workflow,
    .cta {
        padding-left: 24px;
        padding-right: 24px;
    }

    .product-video,
    .workflow,
    .cta {
        padding-top: 75px;
        padding-bottom: 75px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}