@font-face {
    font-family: system-ui;
    src: local("Arial");
}

:root {
    --bg: #f6f8fc;
    --surface: #ffffff;
    --ink: #102033;
    --muted: #5c6b7d;
    --line: #dfe7f1;
    --navy: #0a1730;
    --navy-2: #101f3d;
    --blue: #1d6fd6;
    --cyan: #48d7ff;
    --gold: #f3b23c;
    --green: #48c78e;
    --shadow: 0 24px 60px rgba(10, 23, 48, .12);
    --radius: 24px;
    --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

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

img { max-width: 100%; height: auto; }

a { color: inherit; }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem clamp(1rem, 3vw, 2.5rem);
    background: rgba(246, 248, 252, .88);
    border-bottom: 1px solid rgba(223, 231, 241, .8);
    backdrop-filter: blur(18px);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: .8rem;
    text-decoration: none;
}

.brand strong {
    display: block;
    font-size: clamp(1rem, 1.7vw, 1.2rem);
    letter-spacing: -.02em;
}

.brand small {
    color: var(--muted);
    font-size: .82rem;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: .25rem;
}

.site-nav a {
    padding: .7rem 1rem;
    border-radius: 999px;
    text-decoration: none;
    color: var(--muted);
    font-weight: 700;
    font-size: .95rem;
}

.site-nav a:hover,
.site-nav a.active {
    background: var(--navy);
    color: white;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: white;
    padding: 10px;
}

.nav-toggle span:not(.sr-only) {
    display: block;
    height: 2px;
    margin: 5px 0;
    background: var(--navy);
}

.section-pad {
    width: min(var(--max), calc(100% - 2rem));
    margin: 0 auto;
    padding: clamp(3.5rem, 7vw, 6.5rem) 0;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(340px, .95fr);
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
}

.hero-copy h1,
.page-hero h1 {
    margin: .4rem 0 1rem;
    max-width: 890px;
    font-size: clamp(2.8rem, 7vw, 6.7rem);
    line-height: .93;
    letter-spacing: -.07em;
}

.page-hero h1 { font-size: clamp(2.5rem, 6vw, 5rem); }

.eyebrow {
    margin: 0 0 .8rem;
    color: var(--blue);
    font-size: .8rem;
    font-weight: 900;
    letter-spacing: .16em;
    text-transform: uppercase;
}

.lead {
    max-width: 780px;
    color: var(--muted);
    font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.hero-actions,
.cta-band {
    display: flex;
    align-items: center;
    gap: .8rem;
    flex-wrap: wrap;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: .82rem 1.2rem;
    border: 0;
    border-radius: 999px;
    font-weight: 900;
    text-decoration: none;
    cursor: pointer;
}

.button.primary {
    background: linear-gradient(135deg, var(--blue), #0e4da0);
    color: white;
    box-shadow: 0 12px 28px rgba(29, 111, 214, .28);
}

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

.quick-contact {
    display: flex;
    gap: .7rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
    color: var(--muted);
    font-size: .92rem;
}

.quick-contact span {
    padding: .5rem .75rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255,255,255,.74);
}

.hero-visual {
    position: relative;
}

.hero-visual:before {
    content: "";
    position: absolute;
    inset: 8%;
    background: radial-gradient(circle, rgba(72,215,255,.28), transparent 68%);
    filter: blur(16px);
}

.hero-visual img {
    position: relative;
    filter: drop-shadow(0 28px 45px rgba(10, 23, 48, .16));
}

.stats-bar {
    width: min(var(--max), calc(100% - 2rem));
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--line);
    box-shadow: var(--shadow);
}

.stats-bar div {
    padding: 1.25rem;
    background: white;
}

.stats-bar strong,
.stats-bar span {
    display: block;
}

.stats-bar strong {
    color: var(--navy);
    font-size: clamp(1.1rem, 2vw, 1.45rem);
}

.stats-bar span { color: var(--muted); }

.split-section {
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}

h2 {
    margin: 0 0 1rem;
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1;
    letter-spacing: -.055em;
}

h3 { line-height: 1.2; }

.card-grid {
    display: grid;
    gap: 1rem;
}

.card-grid.two {
    grid-template-columns: repeat(2, 1fr);
}

.service-card,
.feature-grid article,
.timeline article,
.resume-card,
.stack-list article,
.contact-card,
.contact-form {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 16px 42px rgba(10, 23, 48, .07);
}

.service-card {
    padding: 1rem;
}

.service-card img {
    display: block;
    margin-bottom: 1rem;
    border-radius: 18px;
    background: #edf3fb;
}

.service-card h3,
.feature-grid h3,
.timeline h3,
.stack-list h3 {
    margin: 0 0 .5rem;
    font-size: 1.25rem;
}

.service-card p,
.feature-grid p,
.timeline p,
.stack-list p,
.service-row p,
.resume-card p,
.section-heading p,
.quote-block p,
.cta-band p {
    color: var(--muted);
}

.dark-band {
    background:
        radial-gradient(circle at top left, rgba(72,215,255,.20), transparent 34%),
        linear-gradient(135deg, var(--navy), var(--navy-2));
    color: white;
}

.dark-content {
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: center;
}

.dark-content p:not(.eyebrow),
.quote-block p { color: rgba(255,255,255,.74); }

.section-heading {
    max-width: 850px;
    margin: 0 auto 2rem;
    text-align: center;
}

.section-heading.left {
    margin: 0;
    text-align: left;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.feature-grid article,
.timeline article {
    padding: 1.5rem;
}

.feature-grid span,
.timeline span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    margin-bottom: 1rem;
    border-radius: 50%;
    background: #eaf3ff;
    color: var(--blue);
    font-weight: 900;
}

.cta-band {
    justify-content: space-between;
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.page-hero.compact {
    padding-bottom: 2.5rem;
}

.services-list {
    display: grid;
    gap: 1rem;
    padding-top: 1rem;
}

.service-row {
    display: grid;
    grid-template-columns: 86px 1fr;
    gap: 1.5rem;
    padding: 1.5rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: white;
}

.service-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 22px;
    background: linear-gradient(135deg, #eef7ff, #e9fbff);
    color: var(--blue);
    font-size: 2rem;
    font-weight: 900;
}

.service-row h2 {
    font-size: clamp(1.5rem, 3vw, 2.3rem);
}

.service-row ul,
.resume-list {
    margin: 1rem 0 0;
    padding-left: 1.2rem;
    color: var(--muted);
}

.service-row li,
.resume-list li { margin: .4rem 0; }

.timeline.cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.resume-card {
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: clamp(1.5rem, 4vw, 3rem);
    padding: clamp(1.5rem, 4vw, 2.5rem);
}

.resume-card h3 {
    color: var(--blue);
    font-size: 1.1rem;
}

.experience-grid {
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: clamp(2rem, 5vw, 4rem);
}

.stack-list {
    display: grid;
    gap: 1rem;
}

.stack-list article { padding: 1.35rem; }

.quote-block {
    text-align: center;
    max-width: 900px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 1.5rem;
    align-items: start;
    padding-top: 1rem;
}

.contact-card,
.contact-form {
    padding: clamp(1.2rem, 3vw, 2rem);
}

.contact-lines a {
    display: inline-block;
    margin: .15rem 0;
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--blue);
}

.contact-form label {
    display: block;
    margin-bottom: 1rem;
    color: var(--ink);
    font-weight: 800;
}

.field-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

input,
textarea {
    width: 100%;
    margin-top: .35rem;
    padding: .88rem 1rem;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fbfdff;
    color: var(--ink);
    font: inherit;
}

input:focus,
textarea:focus {
    outline: 3px solid rgba(29, 111, 214, .17);
    border-color: var(--blue);
}

.hidden-field { display: none !important; }

.alert {
    margin: 1rem 0;
    padding: 1rem;
    border-radius: 16px;
}

.alert.success {
    background: #eafaf3;
    border: 1px solid rgba(72, 199, 142, .35);
    color: #175d40;
}

.alert.error {
    background: #fff2ef;
    border: 1px solid rgba(220, 81, 62, .28);
    color: #7b2519;
}

.small {
    color: var(--muted);
    font-size: .92rem;
}

.site-footer {
    background: var(--navy);
    color: white;
    padding: 3rem clamp(1rem, 3vw, 2.5rem);
}

.footer-grid {
    width: min(var(--max), 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr .8fr .8fr;
    gap: 2rem;
}

.site-footer h2,
.site-footer h3 { margin-top: 0; }
.site-footer p { color: rgba(255,255,255,.72); }
.site-footer a { color: white; }

@media (max-width: 900px) {
    .nav-toggle { display: inline-block; }
    .site-nav {
        position: absolute;
        top: calc(100% + 1px);
        left: 1rem;
        right: 1rem;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: .7rem;
        border: 1px solid var(--line);
        border-radius: 20px;
        background: white;
        box-shadow: var(--shadow);
    }
    .site-nav.open { display: flex; }
    .site-nav a { border-radius: 14px; }
    .hero,
    .split-section,
    .dark-content,
    .resume-card,
    .experience-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .stats-bar,
    .feature-grid,
    .timeline.cards,
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-visual { order: -1; max-width: 520px; margin: 0 auto; }
}

@media (max-width: 620px) {
    .brand small { display: none; }
    .stats-bar,
    .card-grid.two,
    .feature-grid,
    .timeline.cards,
    .field-grid,
    .footer-grid { grid-template-columns: 1fr; }
    .service-row { grid-template-columns: 1fr; }
    .service-icon { width: 60px; height: 60px; }
    .cta-band { align-items: flex-start; }
}