/* =========================
   Base
========================= */

:root {
    --navy: #12365a;
    --blue: #3568a8;
    --light-blue: #edf4f8;
    --green: #e7f0e4;
    --dark: #17212b;
    --gray: #66717c;
    --light-gray: #f6f8f9;
    --white: #ffffff;
    --border: #dfe5e8;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background: var(--white);
}

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

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


/* =========================
   Navigation
========================= */

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    color: var(--navy);
}

.nav {
    display: flex;
    gap: 36px;
}

.nav a {
    font-size: 0.95rem;
    font-weight: 600;
}

.nav a:hover {
    color: var(--blue);
}

.menu-button {
    display: none;
    border: 0;
    background: transparent;
    font-size: 1.5rem;
}


/* =========================
   Hero
========================= */

.hero {
    min-height: 680px;
    display: flex;
    align-items: center;

    background:
        linear-gradient(
            90deg,
            rgba(237, 244, 248, 1) 0%,
            rgba(237, 244, 248, 0.92) 55%,
            rgba(231, 240, 228, 0.85) 100%
        );
}

.hero-content {
    max-width: 850px;
}

.eyebrow,
.section-label {
    color: var(--blue);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    margin-bottom: 18px;
}

.hero h1 {
    color: var(--navy);
    font-size: clamp(3.2rem, 7vw, 6rem);
    line-height: 0.98;
    letter-spacing: -0.04em;
    max-width: 900px;
}

.hero h1 span {
    display: block;
    color: var(--blue);
}

.hero-description {
    max-width: 650px;
    margin-top: 30px;
    color: var(--gray);
    font-size: 1.15rem;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    margin-top: 36px;
}


/* =========================
   Buttons
========================= */

.button {
    display: inline-block;
    padding: 14px 24px;
    border-radius: 4px;
    font-weight: 700;
    transition: 0.2s ease;
}

.primary-button {
    color: white;
    background: var(--navy);
}

.primary-button:hover {
    background: var(--blue);
}

.secondary-button {
    color: var(--navy);
    border: 1px solid var(--navy);
}

.secondary-button:hover {
    background: var(--navy);
    color: white;
}


/* =========================
   General sections
========================= */

.section {
    padding: 110px 0;
}

.section h2,
.contact-section h2 {
    color: var(--navy);
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.12;
    letter-spacing: -0.025em;
}

.section-heading {
    max-width: 720px;
    margin-bottom: 55px;
}

.narrow {
    max-width: 760px;
}

.narrow > p:last-child {
    margin-top: 24px;
    color: var(--gray);
    font-size: 1.05rem;
}


/* =========================
   About
========================= */

.about {
    background: var(--white);
}

.two-column {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 90px;
}

.about-copy {
    color: var(--gray);
    font-size: 1.08rem;
}

.about-copy p + p {
    margin-top: 22px;
}


/* =========================
   Services
========================= */

.services {
    background: var(--light-gray);
}

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

.service-card {
    background: white;
    border: 1px solid var(--border);
    padding: 38px;
    min-height: 340px;
    display: flex;
    flex-direction: column;
}

.service-number {
    color: var(--blue);
    font-weight: 800;
    margin-bottom: 50px;
}

.service-card h3 {
    color: var(--navy);
    font-size: 1.4rem;
    margin-bottom: 18px;
}

.service-card p {
    color: var(--gray);
    flex-grow: 1;
}

.service-card a {
    margin-top: 28px;
    color: var(--blue);
    font-weight: 700;
}


/* =========================
   Detailed services
========================= */

.detail-section {
    background: var(--navy);
    color: white;
}

.detail-section h2 {
    color: white;
}

.detail-section .section-label {
    color: #a9c8e7;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
}

.detail-intro {
    margin-top: 25px;
    color: #cbd7e2;
    font-size: 1.05rem;
}

.feature {
    padding: 25px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.feature:first-child {
    padding-top: 0;
}

.feature h3 {
    margin-bottom: 8px;
}

.feature p {
    color: #cbd7e2;
}


/* =========================
   Exchange
========================= */

.exchange-section {
    background: var(--green);
}

.exchange-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 45px;
    margin-top: 55px;
}

.exchange-grid span {
    color: var(--blue);
    font-weight: 800;
}

.exchange-grid h3 {
    color: var(--navy);
    margin: 18px 0 10px;
}

.exchange-grid p {
    color: var(--gray);
}


/* =========================
   Marketing
========================= */

.marketing {
    background: var(--light-gray);
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-top: 1px solid var(--border);
}

.capability {
    padding: 35px;
    border-bottom: 1px solid var(--border);
}

.capability:nth-child(odd) {
    border-right: 1px solid var(--border);
}

.capability h3 {
    color: var(--navy);
    margin-bottom: 10px;
}

.capability p {
    color: var(--gray);
}


/* =========================
   Contact
========================= */

.contact-section {
    padding: 120px 0;
    background: var(--blue);
    color: white;
    text-align: center;
}

.contact-content {
    max-width: 800px;
}

.section-label.light {
    color: #dbe9f7;
}

.contact-section h2 {
    color: white;
}

.contact-section p {
    margin: 25px auto 35px;
    max-width: 650px;
    color: #e5eef7;
}

.contact-button {
    background: white;
    color: var(--navy);
}

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


/* =========================
   Footer
========================= */

.footer {
    background: #0c253e;
    color: white;
    padding: 65px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
}

.footer-logo {
    font-weight: 800;
    letter-spacing: 0.14em;
    margin-bottom: 15px;
}

.footer p,
.footer a {
    color: #b8c6d3;
}

.footer h4 {
    margin-bottom: 15px;
}

.copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    margin-top: 55px;
    padding-top: 25px;
    color: #8496a6;
    font-size: 0.85rem;
}

.company-address {
    margin-top: 12px;
    color: #b8c6d3;
    font-style: normal;
    line-height: 1.7;
}


/* =========================
   Mobile
========================= */

@media (max-width: 800px) {

    .nav {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: white;
        padding: 25px 5%;
        flex-direction: column;
        border-bottom: 1px solid var(--border);
    }

    .nav.active {
        display: flex;
    }

    .menu-button {
        display: block;
    }

    .hero {
        min-height: 600px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }

    .section {
        padding: 75px 0;
    }

    .two-column,
    .detail-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .service-grid,
    .exchange-grid {
        grid-template-columns: 1fr;
    }

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

    .capability:nth-child(odd) {
        border-right: none;
    }

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

}

/* =========================
   Key Partners
========================= */

.partners-section {
    background: var(--light-blue);
}

.partners-intro {
    margin-top: 20px;
    color: var(--gray);
    font-size: 1.05rem;
    max-width: 650px;
}

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

.partner-card {
    min-height: 210px;
    padding: 35px;

    display: flex;
    flex-direction: column;
    justify-content: flex-end;

    background: var(--white);
    border: 1px solid var(--border);
    border-top: 3px solid var(--blue);

    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease;
}

.partner-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(18, 54, 90, 0.08);
}

.partner-type {
    margin-bottom: 15px;

    color: var(--blue);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.12em;
}

.partner-card h3 {
    color: var(--navy);
    font-size: 1.3rem;
    line-height: 1.35;
}


/* Mobile */

@media (max-width: 800px) {

    .partners-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .partner-card {
        min-height: 160px;
        padding: 24px;
    }

}

@media (max-width: 480px) {
    .partners-grid {
        grid-template-columns: 1fr;
    }
}