:root {
    --ink: #101318;
    --muted: #69707c;
    --line: #e5e7eb;
    --soft: #f6f7f9;
    --paper: #fff;
    --accent: #2457ff;
    --dark: #111827;
    --radius: 22px
}

* {
    box-sizing: border-box
}

html {
    scroll-behavior: smooth
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6
}

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

.container {
    width: min(1160px, calc(100% - 40px));
    margin: auto
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, .9);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(229, 231, 235, .85)
}

.nav {
    height: 76px;
    display: flex;
    align-items: center;
    gap: 30px
}

.brand {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-right: auto
}

.brand span {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--dark);
    color: white;
    font-weight: 800;
    font-size: 13px
}

.brand strong {
    font-size: 15px
}

.nav nav {
    display: flex;
    gap: 24px;
    font-size: 14px;
    color: #4b5563
}

.nav nav a:hover,
.contact-links a:hover {
    color: var(--accent)
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 13px 19px;
    border-radius: 12px;
    border: 1px solid var(--ink);
    font-weight: 700;
    font-size: 14px;
    transition: .2s ease;
    cursor: pointer
}

.btn-dark {
    background: var(--dark);
    color: white
}

.btn-dark:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(17, 24, 39, .15)
}

.btn-light {
    border-color: var(--line);
    background: white
}

.btn-small {
    padding: 10px 14px;
    font-size: 13px
}

.hero {
    padding: 92px 0 84px;
    border-bottom: 1px solid var(--line);
    overflow: hidden
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.08fr .92fr;
    gap: 70px;
    align-items: center
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: .13em;
    font-size: 11px;
    font-weight: 800;
    color: #64748b;
    margin: 0 0 15px
}

.hero h1 {
    font-size: clamp(46px, 6vw, 78px);
    line-height: 1.02;
    letter-spacing: -.055em;
    margin: 0;
    max-width: 780px
}

.hero h1 em {
    font-style: normal;
    color: #59616e
}

.lead {
    font-size: 19px;
    color: var(--muted);
    max-width: 700px;
    margin: 25px 0 30px
}

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

.hero-meta {
    display: flex;
    gap: 11px;
    flex-wrap: wrap;
    margin-top: 28px;
    color: #707784;
    font-size: 13px
}

.architecture-card {
    height: 430px;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 32px;
    position: relative;
    overflow: hidden
}

.orbit {
    position: absolute;
    border: 1px solid #d8dde5;
    border-radius: 50%;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%)
}

.o1 {
    width: 280px;
    height: 280px
}

.o2 {
    width: 430px;
    height: 430px
}

.node {
    position: absolute;
    display: grid;
    place-items: center;
    border-radius: 50%;
    font-weight: 800;
    font-size: 12px;
    z-index: 2
}

.center {
    width: 78px;
    height: 78px;
    background: var(--dark);
    color: white;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 18px 45px rgba(17, 24, 39, .2)
}

.n1,
.n2,
.n3,
.n4,
.n5 {
    width: 55px;
    height: 55px;
    background: white;
    border: 1px solid #d9dde4;
    box-shadow: 0 10px 28px rgba(17, 24, 39, .08);
    color: #374151
}

.n1 {
    left: 17%;
    top: 21%
}

.n2 {
    right: 14%;
    top: 25%
}

.n3 {
    left: 13%;
    bottom: 22%
}

.n4 {
    right: 14%;
    bottom: 18%
}

.n5 {
    left: 45%;
    bottom: 83%
}

.line {
    position: absolute;
    height: 1px;
    background: #ccd2dc;
    transform-origin: left center;
    width: 170px;
    left: 50%;
    top: 50%
}

.l1 {
    transform: rotate(216deg)
}

.l2 {
    transform: rotate(332deg)
}

.l3 {
    transform: rotate(150deg)
}

.l4 {
    transform: rotate(34deg)
}

.l5 {
    transform: rotate(271deg)
}

.card-caption {
    position: absolute;
    bottom: 18px;
    left: 20px;
    background: white;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 13px;
    font-size: 11px;
    color: #58606c
}

.pulse {
    display: inline-block;
    width: 7px;
    height: 7px;
    background: #28a745;
    border-radius: 50%;
    margin-right: 7px
}

.section {
    padding: 96px 0
}

.section-muted {
    background: var(--soft)
}

.two-col,
.section-head,
.education-grid,
.credentials {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 70px
}

.section h2 {
    font-size: clamp(32px, 4vw, 48px);
    line-height: 1.08;
    letter-spacing: -.04em;
    margin: 0
}

.copy {
    font-size: 17px;
    color: #59616e
}

.copy p {
    margin-top: 0;
    margin-bottom: 20px
}

.section-head {
    align-items: end;
    margin-bottom: 42px
}

.section-note {
    color: var(--muted);
    max-width: 470px;
    margin: 0
}

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

.skill {
    background: white;
    border: 1px solid var(--line);
    padding: 26px;
    border-radius: 18px;
    min-height: 205px
}

.skill .icon {
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--soft);
    font-size: 14px;
    font-weight: 800;
    margin-bottom: 20px
}

.skill h3,
.engagement-grid h3 {
    font-size: 18px;
    margin: 0 0 10px
}

.skill p {
    font-size: 14px;
    color: var(--muted);
    margin: 0
}

.timeline {
    border-top: 1px solid var(--line)
}

.role {
    display: grid;
    grid-template-columns: 190px 1fr;
    gap: 28px;
    padding: 34px 0;
    border-bottom: 1px solid var(--line);
    position: relative
}

.role-date {
    font-size: 13px;
    color: var(--muted);
    padding-top: 3px
}

.role-body {
    padding-left: 25px;
    border-left: 1px solid #d7dbe2
}

.role-dot {
    position: absolute;
    width: 9px;
    height: 9px;
    background: white;
    border: 2px solid #9ca3af;
    border-radius: 50%;
    left: 184px;
    top: 39px
}

.current .role-dot {
    border-color: var(--accent);
    box-shadow: 0 0 0 5px #edf2ff
}

.role-title {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 20px
}

.role-title h3 {
    font-size: 23px;
    margin: 0
}

.role-title span {
    color: #64748b;
    font-size: 14px
}

.role ul {
    margin: 16px 0 0;
    padding-left: 20px;
    color: #59616e
}

.role li {
    margin: 8px 0
}

.section-dark {
    background: #101318;
    color: white
}

.section-dark .eyebrow {
    color: #9ca3af
}

.section-dark .section-note {
    color: #a8afb9
}

.engagement-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: #30343c;
    border: 1px solid #30343c
}

.engagement-grid article {
    background: #101318;
    padding: 30px;
    min-height: 235px
}

.eng-num {
    font-size: 11px;
    color: #8d96a4;
    margin-bottom: 55px
}

.engagement-grid p {
    color: #a8afb9;
    font-size: 14px
}

.edu-list {
    display: grid;
    gap: 0
}

.edu-list div {
    padding: 20px 0;
    border-bottom: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: 4px
}

.edu-list strong {
    font-size: 17px
}

.edu-list span {
    font-size: 14px;
    color: var(--muted)
}

.credential-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px
}

.credential-list span,
.language span {
    border: 1px solid var(--line);
    background: white;
    border-radius: 999px;
    padding: 10px 14px;
    font-size: 13px
}

.language {
    grid-column: 2;
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: -35px
}

.language strong {
    margin-right: 4px;
    font-size: 13px
}

.contact {
    background: #f8fafc
}

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

.contact h2 {
    font-size: clamp(38px, 5vw, 60px);
    letter-spacing: -.05em;
    line-height: 1.03;
    margin: 0
}

.contact>div>p:not(.eyebrow) {
    color: var(--muted);
    max-width: 530px
}

.contact-links {
    display: grid;
    gap: 8px;
    margin-top: 30px;
    font-weight: 700
}

.contact-form {
    background: white;
    border: 1px solid var(--line);
    padding: 30px;
    border-radius: 22px;
    box-shadow: 0 18px 50px rgba(15, 23, 42, .06)
}

label {
    display: grid;
    gap: 7px;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 17px
}

input,
textarea {
    font: inherit;
    border: 1px solid #d9dee7;
    border-radius: 11px;
    padding: 12px 13px;
    outline: none;
    resize: vertical
}

input:focus,
textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px #eaf0ff
}

.contact-form .btn {
    width: 100%
}

.form-note {
    font-size: 11px;
    color: #8a919c;
    margin: 11px 0 0;
    text-align: center
}

footer {
    border-top: 1px solid var(--line)
}

.footer {
    min-height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    font-size: 12px;
    color: #737b87
}

.footer a {
    font-weight: 700;
    color: var(--ink)
}

@media(max-width:900px) {
    .nav nav {
        display: none
    }

    .hero-grid,
    .two-col,
    .section-head,
    .education-grid,
    .credentials,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 35px
    }

    .architecture-card {
        height: 360px
    }

    .skills-grid,
    .engagement-grid {
        grid-template-columns: repeat(2, 1fr)
    }

    .role {
        grid-template-columns: 1fr;
        gap: 10px
    }

    .role-dot {
        left: -5px
    }

    .role-date {
        padding-top: 1px;
        padding-left: 23px;
    }

    .role-body {
        padding-left: 22px
    }

    .language {
        grid-column: auto;
        margin-top: 0
    }

    .footer-download {
        margin: 0 auto;
    }
}

@media(max-width:600px) {
    .container {
        width: min(100% - 28px, 1160px)
    }

    .site-header .btn {
        display: none
    }

    .hero {
        padding: 30px 0
    }

    .hero h1 {
        font-size: 46px
    }

    .hero-meta {
        font-size: 12px
    }

    .section {
        padding: 68px 0
    }

    .skills-grid,
    .engagement-grid {
        grid-template-columns: 1fr
    }

    .section-head {
        margin-bottom: 30px
    }

    .role-title {
        display: block
    }

    .role-title span {
        display: block;
        margin-top: 4px
    }

    .footer {
        padding: 20px 0;
        flex-direction: column;
        align-items: flex-start
    }

    .architecture-card {
        height: 400px
    }

    .n1 {
        top: 13%;
        left: 9%;
    }

    .n2 {
        top: 20%;
        right: 7%;
    }

    .n3 {
        bottom: 16%;
        left: 6%
    }

    .n4 {
        right: 8%
    }

    .n5 {
        left: 44%
    }
}