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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    color: #17212b;
    background: #ffffff;
    line-height: 1.6;
}

.container {
    width: min(1120px, 90%);
    margin: 0 auto;
}

/* Navigation */

.navbar {
    border-bottom: 1px solid #e8edf2;
    background: rgba(255,255,255,0.96);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-content {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.brand {
    font-size: 1.15rem;
    font-weight: 700;
    color: #14202b;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 28px;
}

    .nav-links a {
        color: #4d5a66;
        text-decoration: none;
        font-size: 0.95rem;
    }

        .nav-links a:hover {
            color: #168aad;
        }

/* Hero */

.hero {
    padding: 110px 0 100px;
    background: radial-gradient(circle at 80% 20%, rgba(72,202,228,0.17), transparent 35%), linear-gradient(135deg, #f7fbfc 0%, #ffffff 55%, #f3f8fa 100%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 70px;
    align-items: center;
}

.eyebrow {
    color: #168aad;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 0.04em;
}

.hero h1 {
    font-size: clamp(2.6rem, 5vw, 4.7rem);
    line-height: 1.05;
    max-width: 850px;
    margin-bottom: 24px;
    letter-spacing: -0.045em;
}

.hero-description {
    color: #596773;
    font-size: 1.15rem;
    max-width: 700px;
    margin-bottom: 34px;
}

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

.button {
    display: inline-block;
    padding: 13px 21px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    transition: 0.2s ease;
}

.button-primary {
    background: #168aad;
    color: white;
}

    .button-primary:hover {
        background: #126f8b;
        transform: translateY(-1px);
    }

.button-secondary {
    border: 1px solid #ccd7de;
    color: #253542;
    background: white;
}

    .button-secondary:hover {
        border-color: #168aad;
        color: #168aad;
    }

.hero-card {
    background: #14202b;
    color: white;
    padding: 34px;
    border-radius: 18px;
    box-shadow: 0 20px 55px rgba(20,32,43,0.16);
}

    .hero-card small {
        color: #8bd3e6;
    }

    .hero-card h3 {
        font-size: 1.45rem;
        margin: 10px 0 18px;
    }

.workflow-step {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 12px 14px;
    margin-top: 9px;
}

/* General sections */

.section {
    padding: 90px 0;
}

.section-light {
    background: #f7f9fa;
}

.section-heading {
    max-width: 720px;
    margin-bottom: 45px;
}

    .section-heading h2 {
        font-size: clamp(2rem, 4vw, 3rem);
        margin-bottom: 12px;
        letter-spacing: -0.035em;
    }

    .section-heading p {
        color: #667580;
        font-size: 1.05rem;
    }

/* Services */

.card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.card {
    padding: 28px;
    border: 1px solid #e1e7eb;
    border-radius: 14px;
    background: white;
}

.card-number {
    color: #168aad;
    font-weight: 700;
    font-size: 0.85rem;
    margin-bottom: 25px;
}

.card h3 {
    margin-bottom: 12px;
    font-size: 1.3rem;
}

.card p {
    color: #667580;
}

/* Projects */

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

.project-card {
    border: 1px solid #e1e7eb;
    border-radius: 16px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    min-height: 340px;
}

.project-tag {
    font-size: 0.8rem;
    font-weight: 700;
    color: #168aad;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 18px;
}

.project-card h3 {
    font-size: 1.45rem;
    line-height: 1.25;
    margin-bottom: 16px;
}

.project-card p {
    color: #667580;
    margin-bottom: 24px;
}

.tech {
    color: #4d5a66;
    font-size: 0.88rem;
    margin-top: auto;
    margin-bottom: 22px;
}

/* CTA */

.cta {
    background: #14202b;
    color: white;
    border-radius: 20px;
    padding: 60px;
}

    .cta h2 {
        font-size: clamp(2rem, 4vw, 3rem);
        margin-bottom: 14px;
    }

    .cta p {
        color: #c8d1d7;
        max-width: 720px;
        margin-bottom: 26px;
    }

/* Footer */

footer {
    padding: 35px 0;
    color: #75838e;
    font-size: 0.9rem;
    border-top: 1px solid #e8edf2;
}

/* About */

.about-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 80px;
    align-items: start;
}

    .about-grid h2 {
        font-size: clamp(2rem, 4vw, 3rem);
        line-height: 1.15;
        letter-spacing: -0.035em;
    }

.about-text p {
    color: #667580;
    margin-bottom: 18px;
    font-size: 1.03rem;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}

    .skills span {
        padding: 8px 13px;
        border-radius: 999px;
        background: white;
        border: 1px solid #dce4e8;
        font-size: 0.88rem;
        font-weight: 600;
    }

/* Inner page header */

.page-header {
    padding: 90px 0 60px;
    background: #f7f9fa;
    border-bottom: 1px solid #e7ecef;
}

    .page-header h1 {
        font-size: clamp(2.6rem, 5vw, 4.5rem);
        line-height: 1.05;
        letter-spacing: -0.045em;
        margin-bottom: 20px;
    }

    .page-header > .container > p:last-child {
        color: #667580;
        font-size: 1.1rem;
        max-width: 720px;
    }


/* Case Studies */

.case-study {
    display: grid;
    grid-template-columns: 1fr 0.9fr;
    gap: 80px;
    align-items: start;
}

.case-content > h2 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.1;
    letter-spacing: -0.035em;
    margin-bottom: 40px;
}

.case-block {
    margin-bottom: 35px;
}

    .case-block h3 {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }

    .case-block p {
        color: #667580;
        margin-bottom: 14px;
    }

.case-list {
    padding-left: 22px;
    color: #667580;
}

    .case-list li {
        margin-bottom: 8px;
    }


/* Demo Card */

.case-demo {
    position: sticky;
    top: 110px;
}

.demo-card {
    background: #14202b;
    color: white;
    padding: 36px;
    border-radius: 16px;
}

    .demo-card h3 {
        font-size: 1.5rem;
        margin-bottom: 14px;
    }

    .demo-card > p:not(.eyebrow) {
        color: #c8d1d7;
        margin-bottom: 26px;
    }

.video-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    margin: 22px 0 18px;
    overflow: hidden;
    border-radius: 10px;
    background: #000;
}

    .video-wrapper iframe {
        width: 100%;
        height: 100%;
        border: 0;
    }

.demo-link {
    color: #8bd3e6;
    text-decoration: none;
    font-weight: 700;
}

    .demo-link:hover {
        text-decoration: underline;
    }
/* Contact Form */

.contact-layout {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contact-intro h2 {
    line-height: 1.15;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

    .form-group label {
        font-weight: 600;
        font-size: 0.9rem;
        color: #ffffff;
    }

    .form-group input,
    .form-group textarea {
        width: 100%;
        padding: 13px 14px;
        border-radius: 8px;
        border: 1px solid #44515c;
        background: #1d2a35;
        color: white;
        font: inherit;
        outline: none;
    }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: #8f9ba5;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #48cae4;
        }

    .form-group textarea {
        resize: vertical;
        min-height: 140px;
    }

.contact-submit {
    border: none;
    cursor: pointer;
    align-self: flex-start;
}

/* Mobile */

@media (max-width: 900px) {
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 35px;
    }
    .case-study {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .case-demo {
        position: static;
    }
    .about-grid {
        grid-template-columns: 1fr;
        gap: 35px;
    }
    .hero-grid {
        grid-template-columns: 1fr;
    }

    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 650px) {
    .nav-content {
        flex-direction: column;
        justify-content: center;
        padding: 18px 0;
    }

    .nav-links {
        gap: 14px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding: 70px 0;
    }

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

    .section {
        padding: 65px 0;
    }

    .cta {
        padding: 36px 25px;
    }
}