:root {
    --ink: #101828;
    --muted: #536074;
    --surface: #f7f8fa;
    --line: #dce1e8;
    --accent: #1d4ed8;
    --accent-dark: #1e3a8a;
    --display: "Manrope", Arial, sans-serif;
    --mono: "DM Mono", monospace;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--surface);
    font-family: var(--display);
    line-height: 1.55;
}

a {
    color: inherit;
}

.site-header,
main,
.site-footer {
    max-width: 1180px;
    margin: 0 auto;
    padding-left: 32px;
    padding-right: 32px;
}

.site-header {
    padding-top: 24px;
}

.nav-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 56px;
    border-bottom: 1px solid var(--line);
}

.wordmark {
    color: var(--ink);
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    text-decoration: none;
}

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

.nav-links a {
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 700;
    text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    color: var(--accent);
}

.nav-links .nav-resume {
    color: var(--ink);
}

.nav-toggle {
    display: none;
    border: 0;
    background: transparent;
    color: var(--ink);
    font: 700 0.8rem var(--display);
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.7fr);
    gap: 80px;
    align-items: end;
    padding-top: 118px;
    padding-bottom: 112px;
}

.eyebrow,
.capability-number,
.panel-label,
.experience-date {
    margin: 0;
    color: var(--accent);
    font: 500 0.72rem var(--mono);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1,
h2,
h3 {
    letter-spacing: -0.045em;
}

h1 {
    max-width: 800px;
    margin: 18px 0 24px;
    font-size: clamp(3rem, 6.2vw, 5.5rem);
    line-height: 1.03;
}

.hero-summary {
    max-width: 660px;
    margin-bottom: 32px;
    color: var(--muted);
    font-size: 1.14rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 46px;
    padding: 0 18px;
    border: 1px solid var(--ink);
    font-size: 0.86rem;
    font-weight: 700;
    text-decoration: none;
    transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-2px);
}

.button-primary {
    border-color: var(--accent);
    background: var(--accent);
    color: #fff;
}

.button-primary:hover,
.button-primary:focus-visible {
    background: var(--accent-dark);
}

.button-secondary:hover,
.button-secondary:focus-visible {
    background: var(--ink);
    color: #fff;
}

.hero-panel {
    padding: 26px;
    border-top: 4px solid var(--accent);
    background: var(--ink);
    color: #fff;
}

.panel-label {
    color: #bfdbfe;
}

.panel-value {
    margin: 8px 0 0;
    font-size: 0.98rem;
    font-weight: 600;
}

.panel-rule {
    height: 1px;
    margin: 24px 0;
    background: #475467;
}

.panel-status {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 28px;
    color: #cbd5e1;
    font-size: 0.76rem;
}

.panel-status span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #60a5fa;
}

.section {
    padding: 96px 0;
    border-top: 1px solid var(--line);
}

.section-intro {
    display: grid;
    grid-template-columns: 190px minmax(0, 710px);
    gap: 32px;
    margin-bottom: 54px;
}

h2 {
    margin: -8px 0 0;
    font-size: clamp(2rem, 3.5vw, 3.25rem);
    line-height: 1.12;
}

.capability-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--line);
}

.capability {
    padding: 28px 28px 0 0;
}

.capability + .capability {
    padding-left: 28px;
    border-left: 1px solid var(--line);
}

.capability h3 {
    margin: 52px 0 12px;
    font-size: 1.2rem;
    line-height: 1.25;
}

.capability p:last-child,
.experience-item p {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 0.94rem;
}

.experience-section {
    padding-bottom: 64px;
}

.experience-list {
    border-top: 1px solid var(--line);
}

.experience-item {
    display: grid;
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 24px;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
}

.experience-item h3 {
    margin-bottom: 0;
    font-size: 1.05rem;
    line-height: 1.35;
}

.experience-item h3 span {
    color: var(--muted);
    font-weight: 500;
}

.contact-section {
    margin: 32px 0 96px;
    padding: 64px;
    background: var(--accent);
    color: #fff;
}

.contact-section .eyebrow {
    color: #dbeafe;
}

.contact-section h2 {
    margin: 18px 0 30px;
}

.contact-email {
    border-bottom: 1px solid rgba(255, 255, 255, 0.6);
    font-size: clamp(1.05rem, 2.2vw, 1.6rem);
    font-weight: 700;
    text-decoration: none;
}

.contact-email:hover,
.contact-email:focus-visible {
    border-color: #fff;
}

.disclaimer-section {
    margin: 0 0 64px;
    padding: 28px 32px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.75);
    border-radius: 12px;
}

.disclaimer-section .eyebrow {
    margin-bottom: 10px;
}

.disclaimer-section p:last-child {
    margin-bottom: 0;
    color: var(--muted);
    font-size: 0.9rem;
}

.site-footer {
    display: flex;
    justify-content: space-between;
    padding-top: 22px;
    padding-bottom: 30px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.78rem;
}

.site-footer p {
    margin: 0;
}

.site-footer a {
    font-weight: 700;
    text-decoration: none;
}

.back-link {
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 700;
    text-decoration: none;
}

.back-link:hover,
.back-link:focus-visible {
    color: var(--accent);
}

.lab-page {
    padding-top: 92px;
    padding-bottom: 96px;
}

.lab-hero {
    max-width: 760px;
    margin-bottom: 72px;
}

.lab-hero h1 {
    margin-bottom: 20px;
    font-size: clamp(2.8rem, 5.2vw, 4.7rem);
}

.lab-hero p:last-child {
    max-width: 620px;
    margin-bottom: 0;
    color: var(--muted);
    font-size: 1.08rem;
}

.service-section {
    padding: 40px 0 48px;
    border-top: 1px solid var(--line);
}

.service-section h2 {
    margin: 0 0 30px;
    font-size: 1.5rem;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.service-card {
    display: flex;
    min-height: 190px;
    flex-direction: column;
    padding: 22px;
    border: 1px solid var(--line);
    background: #fff;
    text-decoration: none;
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.service-card:hover,
.service-card:focus-visible {
    border-color: var(--accent);
    box-shadow: 0 10px 24px rgba(16, 24, 40, 0.08);
    transform: translateY(-3px);
}

.service-type {
    color: var(--accent);
    font: 500 0.68rem var(--mono);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.service-card h3 {
    margin: 22px 0 8px;
    font-size: 1.1rem;
}

.service-card p {
    margin-bottom: 20px;
    color: var(--muted);
    font-size: 0.84rem;
}

.service-arrow {
    margin-top: auto;
    color: var(--ink);
    font-size: 0.78rem;
    font-weight: 800;
}

@media (max-width: 760px) {
    .site-header,
    main,
    .site-footer {
        padding-left: 20px;
        padding-right: 20px;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
    }

    .nav-links.is-open {
        position: absolute;
        top: 81px;
        right: 20px;
        left: 20px;
        z-index: 1;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px 20px;
        border: 1px solid var(--line);
        background: #fff;
        box-shadow: 0 12px 28px rgba(16, 24, 40, 0.12);
    }

    .nav-links.is-open a {
        padding: 10px 0;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 48px;
        padding-top: 76px;
        padding-bottom: 76px;
    }

    .section {
        padding: 70px 0;
    }

    .section-intro,
    .experience-item {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .section-intro {
        margin-bottom: 36px;
    }

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

    .capability,
    .capability + .capability {
        padding: 24px 0;
        border-left: 0;
        border-bottom: 1px solid var(--line);
    }

    .capability:last-child {
        border-bottom: 0;
    }

    .capability h3 {
        margin-top: 28px;
    }

    .contact-section {
        margin-bottom: 70px;
        padding: 40px 24px;
    }

    .lab-page {
        padding-top: 64px;
        padding-bottom: 70px;
    }

    .lab-hero {
        margin-bottom: 52px;
    }

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

    .service-card {
        min-height: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .button {
        transition: none;
    }
}