:root {
  color-scheme: dark;
  --bg: #08111f;
  --surface: rgba(17, 30, 51, .76);
  --border: rgba(148, 163, 184, .18);
  --border-bright: rgba(56, 189, 248, .4);
  --text: #edf4ff;
  --muted: #a7b6cb;
  --cyan: #52d3f6;
  --violet: #a78bfa;
  --radius: 1.25rem;
  --shadow: 0 18px 48px rgba(0, 0, 0, .22);
  --max-width: 74rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5.5rem; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 2%, rgba(56, 189, 248, .12), transparent 30rem),
    radial-gradient(circle at 92% 18%, rgba(167, 139, 250, .11), transparent 28rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; border-radius: .35rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: .75rem; left: .75rem; z-index: 100; padding: .7rem 1rem; color: #03111a; background: var(--cyan); border-radius: .65rem; font-weight: 800; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }
.container { width: min(calc(100% - 2.5rem), var(--max-width)); margin-inline: auto; }
.section { padding: 5.5rem 0; }

.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid rgba(148, 163, 184, .12); background: rgba(8, 17, 31, .9); backdrop-filter: blur(12px); }
.nav { min-height: 4.5rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { display: grid; width: 2rem; height: 2rem; place-items: center; color: #07131f; background: linear-gradient(135deg, var(--cyan), #8be6ff); border-radius: .65rem; }
.nav-links { display: flex; align-items: center; gap: clamp(.8rem, 1.5vw, 1.35rem); }
.nav-links a { color: var(--muted); font-size: .88rem; font-weight: 700; transition: color .2s ease; }
.nav-links a:hover { color: var(--text); }
.nav-toggle { display: none; }

.hero { min-height: calc(100svh - 4.5rem); display: grid; align-items: center; padding-block: 4.5rem; }
.hero-shell { display: grid; grid-template-columns: 15rem 1fr; gap: clamp(2.5rem, 5vw, 4rem); align-items: center; }
.portrait-frame { position: relative; width: 14rem; aspect-ratio: 1; justify-self: center; padding: .45rem; background: linear-gradient(145deg, rgba(82, 211, 246, .6), rgba(167, 139, 250, .3) 55%, rgba(255, 255, 255, .05)); border-radius: 50%; box-shadow: var(--shadow); }
.portrait { width: 100%; height: 100%; object-fit: cover; object-position: 52% 28%; border-radius: 50%; background: #111e33; }
.availability { position: absolute; right: -1rem; bottom: .4rem; display: inline-flex; align-items: center; gap: .55rem; padding: .65rem .8rem; color: #dffbea; background: #10231c; border: 1px solid rgba(74, 222, 128, .28); border-radius: 999px; box-shadow: 0 10px 28px rgba(0, 0, 0, .35); font-size: .76rem; font-weight: 800; }
.availability span { width: .55rem; height: .55rem; background: #4ade80; border-radius: 50%; box-shadow: 0 0 0 .22rem rgba(74, 222, 128, .15); }
.eyebrow { margin: 0 0 .7rem; color: var(--cyan); font-size: .78rem; font-weight: 850; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1, h2, h3 { margin-top: 0; line-height: 1.12; letter-spacing: -.035em; }
h1 { margin-bottom: 1rem; font-size: clamp(3rem, 8vw, 5.7rem); }
h2 { margin-bottom: 1rem; font-size: clamp(2rem, 4vw, 3.25rem); }
h3 { font-size: 1.3rem; }
.hero-role { max-width: 42rem; margin: 0; color: #d9e4f4; font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 700; }
.hero-role span { color: var(--violet); }
.hero-intro { max-width: 43rem; margin: 1.4rem 0 0; color: var(--muted); font-size: 1.05rem; }
.hero-meta { display: flex; flex-wrap: wrap; gap: .6rem 1.25rem; margin: 1.5rem 0 0; padding: 0; color: var(--muted); list-style: none; font-size: .88rem; }
.hero-meta li { display: inline-flex; align-items: center; gap: .5rem; }
.hero-meta li::before { content: ""; width: .32rem; height: .32rem; flex: 0 0 auto; background: var(--cyan); border-radius: 50%; }
.hero-meta a:hover { color: var(--cyan); }
.button-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.8rem; }
.button { display: inline-flex; min-height: 2.85rem; align-items: center; justify-content: center; gap: .45rem; padding: .65rem 1rem; color: var(--text); background: rgba(255, 255, 255, .045); border: 1px solid var(--border); border-radius: .75rem; font-size: .84rem; font-weight: 800; transition: transform .2s ease, border-color .2s ease, background-color .2s ease; }
a.button:hover { transform: translateY(-2px); border-color: var(--border-bright); background: rgba(82, 211, 246, .08); }
.button-primary { color: #04131d; background: var(--cyan); border-color: var(--cyan); }
a.button-primary:hover { color: #04131d; background: #8be6ff; border-color: #8be6ff; }
.button-quiet { background: transparent; }
.split-layout { display: grid; grid-template-columns: minmax(15rem, .72fr) 1.28fr; gap: clamp(2rem, 7vw, 6rem); align-items: start; }
.section-heading { position: sticky; top: 6.5rem; }
.section-heading-wide { position: static; display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 2rem; }
.section-heading-wide > p { max-width: 32rem; margin: 0; color: var(--muted); }
.section-heading-wide h2 { margin-bottom: 0; }
.glass-card, .skill-group, .project-card, .other-work-grid article { background: linear-gradient(145deg, rgba(18, 32, 54, .82), rgba(11, 23, 40, .7)); border: 1px solid var(--border); box-shadow: var(--shadow); }
.glass-card { border-radius: var(--radius); }
.prose-card { padding: clamp(1.5rem, 4vw, 2.4rem); }
.prose-card > p { margin: 0; color: #c7d2e3; font-size: 1.03rem; }
.prose-card > p + p { margin-top: 1rem; }
.quick-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.quick-facts div { display: flex; flex-direction: column; gap: .2rem; }
.quick-facts strong { color: var(--text); font-size: .92rem; }
.quick-facts span { color: var(--muted); font-size: .76rem; }

.skill-groups { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1rem; }
.skill-group { grid-column: span 2; padding: 1.35rem; border-radius: 1rem; box-shadow: none; }
.skill-group:nth-child(4), .skill-group:nth-child(5) { grid-column: span 3; }
.skill-group h3 { margin-bottom: 1rem; font-size: 1rem; }
.chip-list, .tech-list { display: flex; flex-wrap: wrap; gap: .5rem; margin: 0; padding: 0; list-style: none; }
.chip-list li, .tech-list li { padding: .35rem .65rem; color: #bdcadd; background: rgba(255, 255, 255, .045); border: 1px solid rgba(148, 163, 184, .13); border-radius: 999px; font-size: .75rem; }

.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.project-card { position: relative; display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; min-width: 0; padding: 1.6rem; border-radius: var(--radius); transition: transform .2s ease, border-color .2s ease; }
.project-card:hover { transform: translateY(-3px); border-color: var(--border-bright); }
.project-index { color: var(--cyan); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .8rem; font-weight: 800; }
.project-content { display: flex; min-width: 0; flex-direction: column; }
.project-role, .certificate-type, .education-status { margin: 0 0 .6rem; color: var(--violet); font-size: .73rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.project-card h3 { margin-bottom: .75rem; font-size: 1.35rem; }
.project-card p:not(.project-role) { margin: 0; color: var(--muted); font-size: .9rem; }
.highlight-list { margin: 1rem 0; padding: 0; color: #becbdd; list-style: none; font-size: .85rem; }
.highlight-list li { position: relative; padding-left: 1rem; }
.highlight-list li + li { margin-top: .55rem; }
.highlight-list li::before { content: ""; position: absolute; top: .65rem; left: 0; width: .32rem; height: .32rem; background: var(--cyan); border-radius: 50%; }
.tech-list { margin-top: auto; padding-top: .15rem; }
.project-links { display: flex; flex-wrap: wrap; gap: .6rem 1.1rem; margin-top: 1.2rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.project-links a, .profile-link a { color: var(--cyan); font-size: .78rem; font-weight: 800; }
.project-links a:hover, .profile-link a:hover { color: #b4efff; }

.timeline { position: relative; display: grid; gap: 1rem; }
.timeline::before { content: ""; position: absolute; top: 1.2rem; bottom: 1.2rem; left: -.05rem; width: 1px; background: linear-gradient(var(--cyan), var(--violet)); }
.timeline-item { position: relative; margin-left: 1.5rem; padding: 1.5rem; }
.timeline-item::before { content: ""; position: absolute; top: 1.75rem; left: -1.85rem; width: .65rem; height: .65rem; background: var(--bg); border: 2px solid var(--cyan); border-radius: 50%; }
.timeline-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem 1rem; }
.timeline-top h3 { max-width: 30rem; margin-bottom: .4rem; font-size: 1.1rem; }
.timeline-top span, .certificate-card time, .certificate-date { color: var(--cyan); font-size: .76rem; font-weight: 750; }
.timeline-item .highlight-list { margin-bottom: 0; }

.certificate-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.certificate-card { display: flex; min-width: 0; flex-direction: column; padding: 1.5rem; }
.certificate-card h3 { margin-bottom: .5rem; font-size: 1.18rem; }
.certificate-card > p:not(.certificate-type) { margin: 1rem 0 1.4rem; color: var(--muted); font-size: .88rem; }
.certificate-card .button { align-self: flex-start; margin-top: auto; }
.education-card { padding: 2rem; }
.education-card h3 { max-width: 37rem; margin-bottom: .65rem; font-size: clamp(1.3rem, 3vw, 2rem); }
.education-card p:last-child { margin: 0; color: var(--muted); }
.compact-section { padding-block: 3.5rem; }
.other-work-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; }
.other-work-grid article { padding: 1.1rem; border-radius: .9rem; box-shadow: none; }
.other-work-grid h3 { margin-bottom: .5rem; font-size: .95rem; }
.other-work-grid p { margin: 0; color: var(--muted); font-size: .78rem; }
.profile-link { margin: 1.25rem 0 0; }
.language-row { display: flex; align-items: end; justify-content: space-between; gap: 2rem; padding: 1.8rem 2rem; background: rgba(17, 30, 51, .55); border: 1px solid var(--border); border-radius: var(--radius); }
.language-row h2 { margin: 0; font-size: 1.7rem; }
.language-list { display: flex; gap: 2rem; margin: 0; }
.language-list div { display: grid; grid-template-columns: auto auto; gap: .6rem; align-items: baseline; }
.language-list dt { font-weight: 800; }
.language-list dd { margin: 0; color: var(--muted); font-size: .85rem; }

.contact-section { padding-bottom: 4.5rem; }
.contact-card { padding: clamp(2rem, 6vw, 4.5rem); text-align: center; background: linear-gradient(145deg, rgba(18, 40, 62, .96), rgba(28, 21, 57, .86)); border: 1px solid rgba(82, 211, 246, .25); border-radius: 1.8rem; box-shadow: var(--shadow); }
.contact-card h2 { margin-bottom: 1rem; }
.contact-card > p:not(.eyebrow) { max-width: 39rem; margin: 0 auto; color: var(--muted); }
.contact-details { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.2rem 2rem; margin: 2rem 0 0; padding: 0; list-style: none; }
.contact-details li { display: flex; flex-direction: column; }
.contact-details span { color: var(--muted); font-size: .7rem; text-transform: uppercase; }
.contact-details a, .contact-details strong { font-size: .87rem; font-weight: 750; }
.contact-details a:hover { color: var(--cyan); }
.contact-buttons { justify-content: center; }
.site-footer { padding: 1.5rem 0 2rem; color: var(--muted); border-top: 1px solid var(--border); font-size: .78rem; }
.site-footer .container { display: flex; justify-content: space-between; gap: 1rem; }
.site-footer p { margin: 0; }
.site-footer a:hover { color: var(--cyan); }

@media (max-width: 64rem) {
  .nav-toggle { display: grid; width: 2.8rem; height: 2.8rem; place-content: center; gap: .3rem; padding: 0; color: var(--text); background: transparent; border: 1px solid var(--border); border-radius: .7rem; cursor: pointer; }
  .nav-toggle span:not(.sr-only) { display: block; width: 1.2rem; height: 2px; background: currentColor; transition: transform .2s ease, opacity .2s ease; }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(.4rem) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(4) { transform: translateY(-.4rem) rotate(-45deg); }
  .nav-links { position: fixed; top: 4.5rem; right: 0; left: 0; display: grid; max-height: 0; overflow: hidden; padding: 0 1.25rem; background: rgba(8, 17, 31, .98); opacity: 0; visibility: hidden; transition: max-height .25s ease, opacity .2s ease, padding .25s ease, visibility .25s; }
  .nav-links.is-open { max-height: calc(100vh - 4.5rem); padding-block: 1rem 1.5rem; border-bottom: 1px solid var(--border); opacity: 1; visibility: visible; }
  .nav-links a { padding: .7rem 0; border-bottom: 1px solid rgba(148, 163, 184, .1); font-size: 1rem; }
  .certificate-grid { grid-template-columns: 1fr 1fr; }
  .certificate-card:last-child { grid-column: 1 / -1; }
}

@media (max-width: 48rem) {
  .section { padding-block: 4rem; }
  .hero { min-height: auto; }
  .hero-shell { grid-template-columns: 1fr; gap: 1.75rem; }
  .portrait-frame { width: min(52vw, 11.5rem); margin-inline: auto; }
  .hero-copy { text-align: center; }
  .hero-intro { margin-inline: auto; }
  .hero-meta, .button-row { justify-content: center; }
  .split-layout { grid-template-columns: 1fr; gap: 1.5rem; }
  .section-heading { position: static; }
  .section-heading-wide { display: block; }
  .section-heading-wide > p { margin-top: .8rem; }
  .skill-groups { grid-template-columns: 1fr 1fr; }
  .skill-group, .skill-group:nth-child(4), .skill-group:nth-child(5) { grid-column: span 1; }
  .skill-group:last-child { grid-column: 1 / -1; }
  .project-grid, .certificate-grid { grid-template-columns: 1fr; }
  .certificate-card:last-child { grid-column: auto; }
  .other-work-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 30rem) {
  .container { width: min(calc(100% - 1.5rem), var(--max-width)); }
  .section { padding-block: 3.25rem; }
  .brand { font-size: .9rem; }
  .hero { padding-top: 2.5rem; }
  .portrait-frame { width: min(52vw, 10.5rem); }
  .availability { right: -1.2rem; bottom: -.1rem; font-size: .68rem; }
  h1 { font-size: clamp(2.6rem, 17vw, 4rem); }
  .button-row .button { flex: 1 1 8.5rem; }
  .quick-facts, .skill-groups, .other-work-grid { grid-template-columns: 1fr; }
  .skill-group:last-child { grid-column: auto; }
  .project-card { grid-template-columns: 1fr; padding: 1.25rem; }
  .project-index { padding-bottom: .55rem; border-bottom: 1px solid var(--border); }
  .language-row { align-items: flex-start; flex-direction: column; padding: 1.4rem; }
  .language-list { width: 100%; flex-direction: column; gap: .45rem; }
  .language-list div { justify-content: space-between; }
  .contact-details { align-items: center; flex-direction: column; }
  .site-footer .container { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}