:root {
    --bg: #0b0d10;
    --surface: #14171b;
    --surface-raised: #181c21;
    --surface-alt: #101317;
    --border: rgba(237, 233, 223, 0.1);
    --border-strong: rgba(237, 233, 223, 0.18);
    --text: #ede9df;
    --text-muted: #8f9490;
    --text-faint: #5e6360;
    --accent: #e0954a;
    --accent-strong: #f0aa5f;
    --accent-soft: rgba(224, 149, 74, 0.12);
    --signal: #6fae8f;
    --font-display: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --font-body: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    background-image:
        linear-gradient(rgba(237, 233, 223, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(237, 233, 223, 0.025) 1px, transparent 1px);
    background-size: 42px 42px;
    color: var(--text);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

h1, h2, h3 { font-family: var(--font-display); color: var(--text); font-weight: 600; line-height: 1.15; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); margin: 0 0 8px; }
h3 { font-size: 1.1rem; }
p { color: var(--text-muted); }
strong { font-weight: 600; color: var(--text); }
em { font-style: italic; }
a { color: var(--accent); }

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 28px;
}

.skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    background: var(--accent);
    color: #14100a;
    padding: 10px 16px;
    z-index: 100;
    font-size: 13px;
    font-weight: 600;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ===== Corner-bracket frame (signature motif) ===== */
.bracket {
    position: relative;
}
.bracket::before, .bracket::after,
.bracket .br-tl, .bracket .br-br {
    content: "";
    position: absolute;
    width: 18px;
    height: 18px;
    border: 2px solid var(--accent);
    z-index: 2;
}
.bracket::before { top: -1px; left: -1px; border-right: none; border-bottom: none; }
.bracket::after { bottom: -1px; right: -1px; border-left: none; border-top: none; }

/* ===== Site header / nav ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(11, 13, 16, 0.88);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.site-header .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 18px;
    padding-bottom: 18px;
}

.brand {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 17px;
    color: var(--text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: 0.01em;
}
.brand:hover { color: var(--text); text-decoration: none; }

.brand .mark {
    width: 34px;
    height: 34px;
    border: 1px solid var(--accent);
    background: var(--accent-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 12px;
    color: var(--accent-strong);
}

.main-nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    margin: 0;
    padding: 0;
}

.main-nav a {
    display: inline-block;
    padding: 8px 13px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 3px;
}

.main-nav a:hover { background: var(--surface-raised); color: var(--text); text-decoration: none; }

.main-nav a[aria-current="page"] {
    background: var(--accent-soft);
    color: var(--accent-strong);
}

/* ===== Eyebrow (shared) ===== */
.eyebrow {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 16px;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 500;
    color: var(--accent);
}
.eyebrow::before {
    content: "";
    width: 20px;
    height: 1px;
    background: var(--accent);
    display: inline-block;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    text-decoration: none;
    padding: 13px 22px;
    border-radius: 3px;
    border: 1px solid var(--border-strong);
    color: var(--text);
    background: transparent;
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.btn:hover { border-color: var(--accent); color: var(--accent-strong); text-decoration: none; }
.btn.primary { background: var(--accent); color: #14100a; border-color: var(--accent); font-weight: 600; }
.btn.primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: #14100a; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* ===== Hero (home page) ===== */
.hero { padding: clamp(40px, 6vw, 64px) 0 clamp(56px, 7vw, 88px); }

.hero-grid {
    display: grid;
    grid-template-columns: 0.92fr 1.15fr;
    gap: 56px;
    align-items: center;
}

.hero-photo {
    position: relative;
    background: var(--surface);
    padding: 14px;
}
.hero-photo img {
    width: 100%;
    height: 460px;
    object-fit: cover;
    display: block;
    filter: grayscale(15%) contrast(1.05);
}
.hero-photo figcaption {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.06em;
    color: var(--text-faint);
    padding-top: 12px;
    text-transform: uppercase;
}

.hero-copy .eyebrow { margin-bottom: 20px; }
.hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    margin: 0 0 6px;
    letter-spacing: -0.01em;
}
.hero h1 .accent { color: var(--accent); }
.hero-role {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
    margin: 0 0 22px;
    letter-spacing: 0.02em;
}
.hero-copy > p { max-width: 50ch; font-size: 15px; }

/* ===== Info list (key/value facts) ===== */
.info-list {
    width: 100%;
    margin: 28px 0 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
}
.info-list .row {
    display: flex;
    gap: 16px;
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    font-size: 14px;
}
.info-list .row:first-child { border-top: none; }
.info-list dt {
    flex: 0 0 30%;
    width: 30%;
    margin: 0;
    font-family: var(--font-mono);
    color: var(--text-faint);
    font-weight: 400;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding-top: 1px;
}
.info-list dd { margin: 0; color: var(--text); }
.info-list dd a { color: var(--text); text-decoration: underline; text-decoration-color: var(--border-strong); text-underline-offset: 3px; }
.info-list dd a:hover { color: var(--accent-strong); text-decoration-color: var(--accent); }

/* ===== Cards ===== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 26px;
    transition: border-color 0.15s ease;
}
.card:hover { border-color: var(--border-strong); }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card .tag,
.card .index {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 12px;
}
.card p { font-size: 14px; margin: 0; }
.card .view-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    text-decoration: none;
}
.card .view-link:hover { color: var(--accent-strong); }

/* ===== Grid utilities ===== */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ===== Sections ===== */
.section { padding: clamp(48px, 6vw, 76px) 0; }
.section.alt { background: var(--surface-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 640px; margin: 0 auto 40px; text-align: center; }
.section-head .eyebrow { justify-content: center; }
.section-head h2 { text-align: center; }

/* ===== Focus panel (statement + schematic graphic) ===== */
.focus-panel { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; align-items: center; }
.focus-copy h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); margin-bottom: 16px; }
.focus-copy h2 .accent { color: var(--accent); }
.focus-copy p { font-size: 14.5px; max-width: 46ch; }
.schematic {
    background: var(--surface);
    border: 1px solid var(--border);
    aspect-ratio: 4 / 3;
    padding: 20px;
}
.schematic svg { width: 100%; height: 100%; display: block; }

/* ===== Badges ===== */
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.badge {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.02em;
    padding: 6px 12px;
    border-radius: 3px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
}

/* ===== Skill proficiency bars ===== */
.skill-row { margin-bottom: 18px; }
.skill-row .label {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 7px;
    color: var(--text);
    font-weight: 500;
}
.skill-row .label span:last-child { font-family: var(--font-mono); color: var(--text-faint); font-weight: 400; font-size: 11px; }
.bar-track {
    height: 6px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 3px;
    overflow: hidden;
}
.bar-fill { height: 100%; background: var(--accent); }

/* ===== Timeline (education) ===== */
.timeline { border-left: 1px solid var(--border-strong); padding-left: 30px; margin-left: 6px; }
.timeline-item { position: relative; margin-bottom: 40px; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-item::before {
    content: "";
    position: absolute;
    left: -35px;
    top: 4px;
    width: 9px;
    height: 9px;
    background: var(--bg);
    border: 2px solid var(--accent);
}
.timeline-item .period {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 500;
}

/* ===== Entry list (roles / credentials) ===== */
.entry-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 20px;
}
.entry-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 2px solid var(--accent);
    border-radius: 0 4px 4px 0;
    padding: 18px 22px;
}
.entry-item .entry-head {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 6px;
}
.entry-item h3 { margin: 0; font-size: 15px; }
.entry-item .org {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-weight: 400;
    white-space: nowrap;
}
.entry-item p { margin: 0; font-size: 14px; }
.entry-item ul { margin: 10px 0 0; padding-left: 20px; }
.entry-item ul li { font-size: 14px; color: var(--text-muted); margin-bottom: 6px; }
.entry-item ul li:last-child { margin-bottom: 0; }

/* ===== Build strip (project snapshot tiles) ===== */
.build-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.build-tile {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 22px;
    min-height: 190px;
    justify-content: center;
    text-decoration: none;
    overflow: hidden;
}
.build-tile:hover { border-color: var(--accent); }
.build-tile .build-pattern { position: absolute; inset: 0; opacity: 0.5; }
.build-tile .build-pattern svg { width: 100%; height: 100%; }
.build-tile .build-index {
    position: relative;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--accent);
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}
.build-tile h3 { position: relative; margin: 0 0 4px; font-size: 16px; color: var(--text); }
.build-tile p { position: relative; margin: 0; font-size: 12.5px; color: var(--text-muted); }

/* ===== Blockquote ===== */
blockquote {
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 2.4vw, 1.6rem);
    font-weight: 500;
    color: var(--text);
    margin: 0;
    line-height: 1.5;
    position: relative;
    padding: 0 8px;
}

/* ===== Contact form ===== */
.form-grid { display: grid; gap: 18px; max-width: 620px; }
.form-grid label {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-faint);
    margin-bottom: 7px;
    font-weight: 400;
}
.form-grid input, .form-grid textarea {
    width: 100%;
    padding: 13px 16px;
    border: 1px solid var(--border-strong);
    border-radius: 3px;
    background: var(--surface);
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text);
}
.form-grid input:focus, .form-grid textarea:focus { outline: none; border-color: var(--accent); }
.form-grid textarea { resize: vertical; min-height: 140px; }

/* ===== Footer (multi-column site map) ===== */
.site-footer {
    margin-top: 64px;
    background: var(--surface-alt);
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    padding: 56px 28px 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 32px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}
.footer-grid h4 {
    margin: 0 0 14px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-faint);
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 10px;
}
.footer-grid h4 .mark {
    width: 26px;
    height: 26px;
    border: 1px solid var(--accent);
    background: var(--accent-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--accent-strong);
}
.footer-grid p { color: var(--text-muted); font-size: 14px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 8px; font-size: 14px; }
.footer-grid a { color: var(--text-muted); text-decoration: none; }
.footer-grid a:hover { color: var(--accent-strong); }

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 10px;
    padding-top: 20px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-faint);
}

/* ===== Focus visibility ===== */
a:focus-visible, .btn:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

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

/* ===== Responsive ===== */
@media (max-width: 860px) {
    .hero-grid { grid-template-columns: 1fr; }
    .focus-panel { grid-template-columns: 1fr; }
    .schematic { order: -1; aspect-ratio: 16/9; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .build-strip { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
    .site-header .container { flex-direction: column; align-items: flex-start; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .info-list .row { flex-direction: column; gap: 3px; }
    .info-list dt { width: auto; }
    .entry-item .entry-head { flex-direction: column; }
    .hero-photo img { height: 340px; }
}