:root {
    --navy: #071a33;
    --navy-soft: #102b4d;
    --blue: #0693e3;
    --ink: #10243d;
    --muted: #64748b;
    --line: #dbe5ef;
    --paper: #f7fafc;
    --white: #ffffff;
}
* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
    font-family: "Muli", sans-serif;
    line-height: 1.6;
}
a {
    color: inherit;
}
.case-header {
    background: var(--navy);
    color: var(--white);
    padding: 28px max(24px, calc((100vw - 1160px) / 2)) 0;
    overflow: hidden;
}
.case-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1160px;
    margin: 0 auto;
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.back-link {
    color: #b9cee2;
    text-decoration: none;
    transition: color 0.2s ease;
}
.back-link:hover {
    color: var(--white);
}
.back-link span {
    color: var(--blue);
    font-size: 20px;
    margin-right: 8px;
    vertical-align: -2px;
}
.nav-mark {
    color: #6f8ca8;
}
.case-hero {
    max-width: 1160px;
    margin: 0 auto;
    padding: 110px 0 76px;
}
.eyebrow,
.section-kicker {
    color: var(--blue);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}
.case-hero h1 {
    max-width: 850px;
    margin: 18px 0 24px;
    font-family: "Lato", sans-serif;
    font-size: clamp(42px, 7vw, 86px);
    font-weight: 900;
    letter-spacing: -0.045em;
    line-height: 1.02;
}
.hero-summary {
    max-width: 650px;
    margin: 0;
    color: #b9cee2;
    font-size: 20px;
    line-height: 1.65;
}
.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 15px;
    margin-top: 38px;
    color: #d9e6f1;
    font-size: 13px;
}
.hero-meta span {
    padding-left: 14px;
    border-left: 1px solid var(--blue);
}
.hero-image-wrap {
    max-width: 1160px;
    margin: 0 auto;
    transform: translateY(1px);
}
.hero-image-wrap img {
    display: block;
    width: 100%;
    max-height: 560px;
    object-fit: cover;
    border: 1px solid rgba(255, 255, 255, 0.12);
}
.case-main {
    max-width: 1160px;
    margin: 0 auto;
    padding: 85px 24px 60px;
}
.intro-grid,
.split-section,
.challenge-grid {
    display: grid;
    grid-template-columns: minmax(220px, 0.8fr) 1.5fr;
    gap: 80px;
}
.intro-grid {
    padding-bottom: 50px;
    border-bottom: 1px solid var(--line);
}
.case-main h2 {
    margin: 10px 0 24px;
    font-family: "Lato", sans-serif;
    color: var(--navy);
    font-size: clamp(28px, 4vw, 48px);
    font-weight: 900;
    letter-spacing: -0.035em;
    line-height: 1.1;
}
.lead-copy {
    max-width: 690px;
    margin: 0;
    font-size: 21px;
    line-height: 1.7;
}
.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}
.action-row a {
    padding: 12px 18px;
    border: 1px solid var(--blue);
    color: var(--navy);
    font-size: 13px;
    font-weight: 800;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}
.action-row a:hover {
    background: var(--blue);
    color: var(--white);
}
.content-section {
    padding: 80px 0;
    border-bottom: 1px solid var(--line);
}
.content-section-focus {
    padding: 80px 0 60px;
    border-bottom: 1px solid var(--line);
}
.feature-list {
    display: grid;
    gap: 0;
}
.feature-item {
    padding: 23px 0;
    border-top: 1px solid var(--line);
}
.feature-item:first-child {
    border-top: 0;
    padding-top: 0;
}
.feature-item h3 {
    margin: 0 0 6px;
    font-family: "Lato", sans-serif;
    font-size: 22px;
    color: var(--navy);
}
.feature-item p,
.challenge-grid p {
    margin: 0;
    color: var(--muted);
}
.tech-section-case {
    display: grid;
    grid-template-columns: minmax(220px, 0.8fr) 1.5fr;
    gap: 80px;
}
.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}
.tech-item {
    min-height: 120px;
    padding: 24px;
    background: var(--paper);
}
.tech-item small {
    display: block;
    margin-bottom: 9px;
    color: var(--muted);
    font-size: 11px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}
.tech-item strong {
    font-family: "Lato", sans-serif;
    font-size: 21px;
    color: var(--navy);
}
.gallery-section {
    padding: 80px 0;
    border-bottom: 1px solid var(--line);
}
.section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 34px;
}
.section-heading h2 {
    margin-bottom: 0;
}
.section-heading > p {
    max-width: 300px;
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}
.gallery-card {
    margin: 0;
    background: var(--navy);
}
.gallery-card img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}
.gallery-card figcaption {
    padding: 14px 16px;
    color: var(--white);
    font-size: 13px;
}
.challenge-grid {
    padding-top: 80px;
}
.challenge-grid article {
    padding-right: 30px;
}
.challenge-grid .solution-card {
    padding: 36px;
    background: var(--navy);
    color: var(--white);
}
.solution-card h2 {
    color: var(--white);
}
.solution-card p {
    color: #b9cee2;
    white-space: pre-line;
}
.outcome-section {
    padding: 80px 0 0;
}
.outcome-section h2 {
    max-width: 950px;
    font-size: clamp(24px, 1vw, 40px);
    white-space: pre-line;
}
.case-footer {
    display: flex;
    justify-content: space-between;
    gap: 25px;
    max-width: 1160px;
    margin: 0 auto;
    padding: 30px 24px 55px;
    border-top: 1px solid var(--line);
    color: var(--navy);
    font-size: 13px;
    font-weight: 800;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.case-footer a {
    text-decoration: none;
}
.case-footer a:hover {
    color: var(--blue);
}
.footer-home {
    color: var(--blue);
}
@media (max-width: 700px) {
    .case-header {
        padding-left: 20px;
        padding-right: 20px;
    }
    .nav-mark {
        display: none;
    }
    .case-hero {
        padding: 82px 0 48px;
    }
    .hero-summary {
        font-size: 17px;
    }
    .case-main {
        padding-top: 70px;
    }
    .intro-grid,
    .split-section,
    .challenge-grid,
    .tech-section-case {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .content-section,
    .gallery-section {
        padding: 70px 0;
    }
    .gallery-grid,
    .tech-grid {
        grid-template-columns: 1fr;
    }
    .section-heading {
        display: block;
    }
    .section-heading > p {
        margin-top: 20px;
    }
    .challenge-grid article {
        padding-right: 0;
    }
    .case-footer {
        font-size: 10px;
        padding-left: 20px;
        padding-right: 20px;
    }
}

@media (max-width: 480px) {
    .case-header {
        padding-top: 20px;
        padding-right: 16px;
        padding-left: 16px;
    }

    .case-nav {
        font-size: 10px;
        letter-spacing: 0.08em;
    }

    .case-hero {
        padding: 58px 0 34px;
    }

    .case-hero h1 {
        margin-top: 14px;
        font-size: clamp(36px, 13vw, 58px);
    }

    .hero-summary {
        font-size: 16px;
        line-height: 1.55;
    }

    .hero-meta {
        display: grid;
        gap: 9px;
        margin-top: 26px;
    }

    .hero-meta span {
        padding-left: 10px;
    }

    .case-main {
        padding: 52px 16px 36px;
    }

    .case-main h2 {
        font-size: 32px;
    }

    .lead-copy {
        font-size: 17px;
        line-height: 1.6;
    }

    .action-row {
        align-items: stretch;
        flex-direction: column;
        margin-top: 26px;
    }

    .action-row a {
        text-align: center;
    }

    .content-section,
    .content-section-focus,
    .gallery-section {
        padding: 52px 0;
    }

    .tech-item,
    .challenge-grid .solution-card {
        padding: 22px;
    }

    .gallery-card figcaption {
        padding: 12px;
    }

    .case-footer {
        align-items: flex-start;
        flex-direction: column;
        gap: 14px;
        padding: 24px 16px 36px;
        font-size: 10px;
        line-height: 1.5;
    }
}