/* =========================================
   SEI WEBSITE
   Main Stylesheet
   ========================================= */

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    color: #17202a;
    background: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}


/* HEADER */

.site-header {
    background: #ffffff;
    border-bottom: 1px solid #e8edf2;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 30px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-decoration: none;
}

.logo img {
    display: block;
    width: 155px;
    height: auto;
}

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

.main-nav a {
    color: #25313c;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    transition: color 0.2s ease;
}

.main-nav a:hover {
    color: #0874c9;
}


/* HERO */

.hero {
    min-height: 650px;
    display: flex;
    align-items: center;

    background:
        linear-gradient(
            110deg,
            #061b30 0%,
            #0a3154 55%,
            #075b94 100%
        );

    color: #ffffff;
}

.hero-content {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 90px 30px;
}

.eyebrow {
    color: #36a9e1;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.hero h1 {
    max-width: 800px;
    font-size: clamp(52px, 7vw, 86px);
    line-height: 1.02;
    letter-spacing: -3px;
    margin-bottom: 30px;
}

.hero-text {
    max-width: 650px;
    font-size: 21px;
    line-height: 1.7;
    color: #d7e5f1;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-top: 40px;
}


/* BUTTONS */

.button {
    display: inline-block;
    padding: 14px 25px;

    border-radius: 5px;
    text-decoration: none;

    font-size: 15px;
    font-weight: 700;

    transition: all 0.2s ease;
}

.button.primary {
    background: #0874c9;
    color: #ffffff;
}

.button.primary:hover {
    background: #1297dc;
    transform: translateY(-2px);
}

.button.secondary {
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.button.secondary:hover {
    background: #ffffff;
    color: #082945;
}


/* CAPABILITIES */

.capabilities {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 30px;
}

.section-heading {
    max-width: 760px;
    margin-bottom: 55px;
}

.section-heading h2 {
    font-size: 42px;
    line-height: 1.15;
    margin-bottom: 20px;
    color: #102a43;
}

.section-heading > p:last-child {
    font-size: 19px;
    color: #5c6975;
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.capability-card {
    padding: 45px;

    border: 1px solid #e1e7ec;
    border-radius: 8px;

    background: #ffffff;

    box-shadow:
        0 8px 30px rgba(15, 40, 65, 0.06);
}

.capability-card h3 {
    color: #0874c9;
    font-size: 27px;
    margin-bottom: 18px;
}

.capability-card p {
    color: #586673;
    margin-bottom: 25px;
}

.capability-card ul {
    list-style: none;
}

.capability-card li {
    padding: 9px 0;
    border-bottom: 1px solid #edf1f4;
    font-weight: 600;
}

.capability-card li::before {
    content: "→";
    color: #0874c9;
    margin-right: 10px;
}


/* CALL TO ACTION */

.cta {
    background: #f1f6fa;
    padding: 80px 30px;
    text-align: center;
}

.cta h2 {
    max-width: 750px;
    margin: 0 auto 30px;

    color: #102a43;
    font-size: 36px;
    line-height: 1.25;
}


/* FOOTER */

footer {
    background: #071b2e;
    color: #9fb2c3;

    text-align: center;
    padding: 40px 30px;

    font-size: 14px;
}

footer p + p {
    margin-top: 6px;
}

/* CAPABILITY CARD ACCENTS */

.capability-card {
    position: relative;
    overflow: hidden;
}

.capability-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: #0874c9;
}

.capability-card h3 {
    min-height: 72px;
}

.capability-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(15, 40, 65, 0.10);
}

.capability-card {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
/* HERO VISUAL DEPTH */

.hero {
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: "";
    position: absolute;
    width: 700px;
    height: 700px;
    right: -180px;
    top: -120px;

    background:
        radial-gradient(circle at 20% 30%,
            rgba(54, 169, 225, 0.18) 0 3px,
            transparent 4px),
        radial-gradient(circle at 55% 20%,
            rgba(54, 169, 225, 0.16) 0 4px,
            transparent 5px),
        radial-gradient(circle at 75% 55%,
            rgba(255, 255, 255, 0.10) 0 3px,
            transparent 4px),
        radial-gradient(circle at 35% 70%,
            rgba(54, 169, 225, 0.13) 0 5px,
            transparent 6px);

    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50%;

    opacity: 0.8;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}
/* MOBILE */
/* REAL-WORLD EXPERIENCE */

.field-experience {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    width: 100%;
    max-width: 100%;
    min-height: 540px;
    background: #f4f7f9;
}

.field-image {
    min-height: 540px;
    overflow: hidden;
}

.field-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: 40% center;
}

.field-content {
    padding: 75px 65px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
}

.field-content h2 {
    color: #102a43;
    font-size: 40px;
    line-height: 1.15;
    margin-bottom: 25px;
}

.field-content > p:not(.eyebrow) {
    color: #586673;
    font-size: 17px;
    line-height: 1.75;
    margin-bottom: 18px;
}

.field-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.field-highlights span {
    padding: 8px 13px;
    background: #ffffff;
    border: 1px solid #dce5eb;
    border-radius: 4px;

    color: #1d3448;
    font-size: 13px;
    font-weight: 700;
}
/* =========================================
   SERVICES PAGE
   ========================================= */

.page-hero {
    background:
        linear-gradient(
            110deg,
            #061b30 0%,
            #0a3154 55%,
            #075b94 100%
        );

    color: #ffffff;
    padding: 75px 30px;
}

.page-hero-content {
    max-width: 1200px;
    margin: 0 auto;
}

.page-hero h1 {
    max-width: 900px;
    font-size: clamp(46px, 6vw, 70px);
    line-height: 1.05;
    letter-spacing: -2px;
    margin-bottom: 28px;
}

.page-hero-content > p:last-child {
    max-width: 760px;
    color: #d7e5f1;
    font-size: 20px;
    line-height: 1.7;
}


.services-intro {
    max-width: 1000px;
    margin: 0 auto;
    padding: 70px 30px 60px;
}

.services-intro h2 {
    color: #102a43;
    font-size: 42px;
    line-height: 1.15;
    margin-bottom: 22px;
}

.services-intro > p:last-child {
    max-width: 800px;
    color: #586673;
    font-size: 18px;
    line-height: 1.75;
}


/* INDIVIDUAL SERVICE AREAS */

.service-section {
    display: grid;
    grid-template-columns: 180px minmax(0, 1fr);

    max-width: 1200px;
    margin: 0 auto;
    padding: 85px 30px;

    border-top: 1px solid #e1e7ec;
}

.service-alt {
    background: #f5f8fa;
}


.service-number {
    color: #d6e1e9;
    font-size: 70px;
    line-height: 1;
    font-weight: 700;
}

.service-details h2 {
    color: #102a43;
    font-size: 38px;
    line-height: 1.2;
    margin-bottom: 20px;
}

.service-details > p:not(.eyebrow) {
    max-width: 800px;
    color: #586673;
    font-size: 17px;
    line-height: 1.75;
    margin-bottom: 40px;
}

.service-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 35px 50px;
}

.service-list > div {
    border-top: 3px solid #0874c9;
    padding-top: 20px;
}

.service-list h3 {
    color: #172b3d;
    font-size: 20px;
    margin-bottom: 10px;
}

.service-list p {
    color: #667582;
    font-size: 15px;
    line-height: 1.7;
}
    .page-hero {
        padding: 70px 30px;
    }

    .page-hero h1 {
        font-size: 44px;
    }

    .services-intro h2 {
        font-size: 34px;
    }

    .service-section {
        grid-template-columns: 1fr;
        padding: 60px 30px;
    }

    .service-alt {
        padding-left: 30px;
        padding-right: 30px;
    }

    .service-number {
        font-size: 45px;
        margin-bottom: 25px;
    }

    .service-details h2 {
        font-size: 32px;
    }

    .service-list {
        grid-template-columns: 1fr;
    }
    /* =========================================
   EXPERIENCE PAGE
   ========================================= */

/* INTRO */

.experience-intro {
    max-width: 1200px;
    margin: 0 auto;
    padding: 70px 30px 50px;

    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.experience-intro h2 {
    color: #102a43;
    font-size: 42px;
    line-height: 1.15;
}

.experience-intro-copy p {
    color: #586673;
    font-size: 17px;
    line-height: 1.8;
    margin-bottom: 20px;
}


/* EXPERIENCE IMAGE */

.experience-visual {
    width: 100%;
    height: 480px;
    overflow: hidden;
    background: #0a3154;
}

.experience-visual img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center;
}


/* PROBLEM TO ADOPTION */

.experience-process {
    max-width: 1200px;
    margin: 0 auto;
    padding: 95px 30px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 25px;
    margin-top: 55px;
}

.process-step {
    position: relative;
    padding-top: 25px;
    border-top: 3px solid #0874c9;
}

.process-step span {
    display: block;
    color: #a9c7db;
    font-size: 36px;
    line-height: 1;
    font-weight: 700;
    margin-bottom: 20px;
}

.process-step h3 {
    color: #172b3d;
    font-size: 19px;
    line-height: 1.3;
    margin-bottom: 12px;
}

.process-step p {
    color: #667582;
    font-size: 14px;
    line-height: 1.7;
}


/* EXPERTISE */

.expertise-section {
    background: #f4f7f9;
    padding: 90px max(30px, calc((100% - 1140px) / 2));

    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 80px;
}

.expertise-column h2 {
    color: #102a43;
    font-size: 32px;
    line-height: 1.2;
    margin-bottom: 30px;
}

.expertise-column ul {
    list-style: none;
}

.expertise-column li {
    padding: 13px 0;
    border-bottom: 1px solid #dbe4ea;

    color: #263a4c;
    font-size: 16px;
    font-weight: 600;
}

.expertise-column li::before {
    content: "→";
    color: #0874c9;
    margin-right: 12px;
}
/* =========================================
   CONTACT PAGE
   ========================================= */

.contact-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 90px 30px 100px;

    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 60px;
    align-items: start;
}


/* CONTACT INFORMATION */

.contact-info h2 {
    color: #102a43;
    font-size: 40px;
    line-height: 1.2;
    margin-bottom: 25px;
}

.contact-intro {
    color: #586673;
    font-size: 17px;
    line-height: 1.75;
    margin-bottom: 45px;
}

.contact-detail {
    padding: 20px 0;
    border-top: 1px solid #dbe4ea;
}

.contact-detail span {
    display: block;

    color: #27a7e8;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;

    margin-bottom: 7px;
}

.contact-detail p {
    color: #263a4c;
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
}

.contact-detail a {
    color: #102a43;
    text-decoration: none;
    font-weight: 600;
}

.contact-detail a:hover {
    color: #0874c9;
}


/* CONTACT FORM */

.contact-form-wrap {
    background: #f4f7f9;
    padding: 40px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;

    color: #263a4c;
    font-size: 14px;
    font-weight: 700;

    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    box-sizing: border-box;

    padding: 14px 15px;

    background: #ffffff;
    border: 1px solid #ccd8e0;
    border-radius: 3px;

    color: #263a4c;
    font-family: inherit;
    font-size: 16px;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0874c9;
    box-shadow: 0 0 0 2px rgba(8, 116, 201, 0.08);
}

.form-button {
    border: 0;
    cursor: pointer;
    font-family: inherit;
    font-size: 15px;
}
/* CONTACT FORM MESSAGES */

.website-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.form-success {
    background: #e9f6ee;
    border-left: 4px solid #2f8f55;
    color: #245c39;
    padding: 16px 18px;
    margin-bottom: 25px;
    line-height: 1.6;
}

.form-error {
    background: #fff0f0;
    border-left: 4px solid #c94a4a;
    color: #8a3030;
    padding: 16px 18px;
    margin-bottom: 25px;
    line-height: 1.6;
}
@media (max-width: 750px) {

    .header-container {
        flex-direction: column;
        gap: 18px;
    }

    .logo img {
        width: 145px;
    }

    .main-nav {
        gap: 18px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        min-height: 570px;
    }

    .hero h1 {
        font-size: 52px;
        letter-spacing: -2px;
    }

    .hero-text {
        font-size: 18px;
    }

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

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

    .capability-card {
        padding: 30px;
    }

        .section-heading h2 {
        font-size: 34px;
    }

    .field-experience {
        grid-template-columns: 1fr;
    }

    .field-image {
        min-height: 350px;
    }

    .field-content {
        padding: 50px 30px;
    }

    .field-content h2 {
        font-size: 32px;
    }
    .experience-intro {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 60px 30px;
    }

    .experience-intro h2 {
        font-size: 34px;
    }

    .experience-visual {
        height: 320px;
    }

    .experience-process {
        padding: 65px 30px;
    }

    .process-grid {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    .expertise-section {
        grid-template-columns: 1fr;
        gap: 60px;
        padding: 65px 30px;
    }
        .contact-section {
        grid-template-columns: 1fr;
        gap: 55px;
        padding: 60px 30px 70px;
    }

    .contact-info h2 {
        font-size: 34px;
    }

    .contact-form-wrap {
        padding: 30px 22px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
}   /* leave this final brace here */