:root {
  --ink: #0b0c0d;
  --soft-ink: #17191b;
  --paper: #f4f4f1;
  --white: #ffffff;
  --muted: #a8aaad;
  --line: rgba(255,255,255,.16);
  --dark-line: rgba(11,12,13,.15);
  --cyan: #36d7e2;
  --cyan-dark: #007e88;
  --shell: min(1180px, calc(100vw - 56px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: "Manrope", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
img { display: block; max-width: 100%; }
.mono { font-family: "DM Mono", ui-monospace, monospace; letter-spacing: .02em; }
.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: 10px; left: 10px; z-index: 1000; background: var(--cyan); color: var(--ink); padding: 10px 14px; transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.scroll-progress { position: fixed; inset: 0 auto auto 0; width: 0; height: 2px; background: var(--cyan); z-index: 1001; }

.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  width: var(--shell); margin: 0 auto; padding: 24px 0;
  transition: padding .3s ease, background .3s ease;
}
.site-header::before { content: ""; position: absolute; inset: 0 -24px; z-index: -1; background: rgba(10,11,12,.84); backdrop-filter: blur(18px); opacity: 0; transition: opacity .3s ease; }
.site-header.scrolled { padding-block: 15px; }
.site-header.scrolled::before { opacity: 1; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; font-size: .95rem; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--cyan); color: var(--cyan); font: 500 .75rem "DM Mono", monospace; }
.site-nav { display: flex; align-items: center; gap: 30px; font-size: .88rem; }
.site-nav a { color: #d6d6d6; transition: color .2s ease; }
.site-nav a:hover, .site-nav a.active { color: var(--cyan); }
.site-nav .nav-resume { border: 1px solid rgba(255,255,255,.35); padding: 9px 14px; color: var(--white); }
.menu-toggle { display: none; background: none; border: 0; padding: 10px; color: white; }
.menu-toggle span:not(.sr-only) { display: block; width: 26px; height: 1px; background: currentColor; margin: 6px 0; }

.hero { position: relative; min-height: 100svh; padding: 140px max(28px, calc((100vw - 1180px)/2)) 54px; display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.hero::after { content: ""; position: absolute; width: 52vw; height: 52vw; right: -22vw; top: 7vh; border-radius: 50%; background: radial-gradient(circle, rgba(54,215,226,.12), transparent 66%); pointer-events: none; }
.hero-noise { position: absolute; inset: 0; opacity: .23; pointer-events: none; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.14'/%3E%3C/svg%3E"); }
.hero-status { position: absolute; top: 110px; left: max(28px, calc((100vw - 1180px)/2)); display: flex; gap: 10px; align-items: center; color: #aeb1b3; font-size: .72rem; text-transform: uppercase; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(54,215,226,.11); }
.hero-grid { width: var(--shell); margin: auto; display: grid; grid-template-columns: minmax(0,1.35fr) minmax(280px,.65fr); align-items: center; gap: clamp(50px, 8vw, 120px); }
.eyebrow { color: var(--cyan); font-size: .8rem; margin: 0 0 14px; }
.hero h1 { margin: 0; font-size: clamp(4.6rem, 9.3vw, 9rem); line-height: .82; letter-spacing: -.075em; font-weight: 500; }
.hero-statement { margin: 42px 0 0; color: #7d7f82; font-size: clamp(1.5rem, 3.2vw, 3rem); line-height: 1.12; letter-spacing: -.045em; }
.hero-statement span { color: var(--white); }
.hero-value { max-width: 720px; margin: 28px 0 0; color: #a7aaad; font-size: clamp(.98rem, 1.4vw, 1.18rem); line-height: 1.65; }
.hero-actions { display: flex; gap: 12px; margin-top: 38px; flex-wrap: wrap; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 21px; border: 1px solid rgba(255,255,255,.25); font-weight: 600; font-size: .86rem; transition: transform .2s ease, background .2s ease, color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--cyan); color: var(--ink); border-color: var(--cyan); }
.button-ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.button-link { border-color: transparent; color: #a7aaad; padding-inline: 8px; }
.button-link:hover { color: var(--cyan); }
.portrait-wrap { position: relative; width: min(100%, 390px); aspect-ratio: 1; margin: 0 auto; }
.portrait-wrap img { position: relative; z-index: 2; width: 100%; height: 100%; object-fit: cover; object-position: 53% 15%; border-radius: 50%; filter: saturate(.82) contrast(1.04); }
.portrait-ring { position: absolute; inset: -16px; border: 1px solid rgba(54,215,226,.58); border-radius: 50%; animation: rotate 16s linear infinite; }
.portrait-ring::after { content: ""; position: absolute; width: 9px; height: 9px; border-radius: 50%; background: var(--cyan); top: 10%; left: 15%; box-shadow: 0 0 20px var(--cyan); }
.portrait-wrap figcaption { text-align: center; color: #777a7c; font-size: .65rem; margin-top: 24px; }
.scroll-cue { position: absolute; left: max(28px, calc((100vw - 1180px)/2)); bottom: 32px; display: flex; gap: 18px; color: #74777a; font-size: .68rem; text-transform: uppercase; }
@keyframes rotate { to { transform: rotate(360deg); } }

.section { padding: 130px 0; }
.section-shell { width: var(--shell); margin: 0 auto; }
.section-light { color: var(--ink); background: var(--paper); }
.section-dark { color: var(--white); background: var(--soft-ink); }
.section-accent { color: var(--ink); background: var(--cyan); }
.section-index { margin-bottom: 56px; font-size: .75rem; color: var(--cyan-dark); text-transform: uppercase; }
.section-dark .section-index { color: var(--cyan); }
.display-heading { margin: 0; font-size: clamp(3.1rem, 7vw, 7rem); line-height: .9; letter-spacing: -.065em; font-weight: 500; }
.about-layout { display: grid; grid-template-columns: 1fr .9fr; gap: clamp(60px, 10vw, 150px); align-items: start; }
.about-copy { padding-top: 12px; max-width: 610px; }
.about-copy p { color: #5b5e61; font-size: 1.05rem; }
.about-copy .lead { color: var(--ink); font-size: clamp(1.35rem, 2.3vw, 2.05rem); line-height: 1.35; letter-spacing: -.025em; margin-top: 0; }
.metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-top: 55px; padding-top: 28px; border-top: 1px solid var(--dark-line); }
.metrics div { display: flex; flex-direction: column; }
.metrics strong { font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1; font-weight: 500; letter-spacing: -.06em; }
.metrics span { margin-top: 10px; color: #696c6f; font-size: .78rem; }

.expertise-head { display: grid; grid-template-columns: 1.25fr .55fr; gap: 80px; align-items: end; }
.expertise-head p { font-size: 1.08rem; margin: 0 0 4px; max-width: 430px; }
.expertise-list { margin: 90px 0 0; border-top: 1px solid rgba(0,0,0,.3); }
.expertise-item { margin: 0; border-bottom: 1px solid rgba(0,0,0,.3); }
.expertise-item summary { display: grid; grid-template-columns: 60px minmax(0,1fr) 36px; gap: 25px; align-items: center; max-width: none; padding: 20px 0; border: 0; color: var(--ink); }
.expertise-item summary:hover i, .expertise-item summary:focus-visible i { background: var(--ink); color: var(--cyan); }
.expertise-item summary:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.expertise-item .expertise-number { padding: 0; font: 400 .65rem "DM Mono", monospace; letter-spacing: .04em; }
.expertise-item strong { font-size: clamp(1.2rem, 2.5vw, 2.4rem); line-height: 1.2; letter-spacing: -.03em; font-weight: 400; }
.expertise-item summary i { display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid rgba(0,0,0,.42); border-radius: 50%; font-style: normal; font-size: 1.2rem; line-height: 1; transition: transform .25s ease, background .2s ease, color .2s ease; }
.expertise-item[open] summary i { transform: rotate(45deg); }
.expertise-item > p { max-width: 780px; margin: 0 0 25px 85px; color: rgba(11,12,13,.68); font-size: 1rem; line-height: 1.7; }

.portfolio-section { background: #efefeb; color: var(--ink); }
.portfolio-intro { display: grid; grid-template-columns: 1.25fr .55fr; gap: 80px; align-items: end; margin-bottom: 80px; }
.portfolio-side > p { margin: 0 0 28px; color: #5d6063; font-size: 1.05rem; }
.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); border-top: 1px solid var(--dark-line); border-left: 1px solid var(--dark-line); }
.project-card { min-height: 420px; border-right: 1px solid var(--dark-line); border-bottom: 1px solid var(--dark-line); perspective: 1400px; }
.project-card-toggle { display: block; width: 100%; height: 100%; min-height: inherit; padding: 0; border: 0; background: transparent; color: inherit; text-align: left; cursor: pointer; }
.project-card-toggle:focus-visible { outline: 3px solid var(--cyan-dark); outline-offset: -5px; }
.project-card-inner { position: relative; display: block; width: 100%; height: 100%; min-height: inherit; transform-style: preserve-3d; transition: transform .7s cubic-bezier(.2,.72,.2,1); }
.project-card.is-flipped .project-card-inner { transform: rotateY(180deg); }
.project-face { position: absolute; inset: 0; display: flex; flex-direction: column; padding: 32px; overflow: hidden; backface-visibility: hidden; -webkit-backface-visibility: hidden; transition: background .25s ease, color .25s ease; }
.project-front { background: #efefeb; color: var(--ink); }
.project-card-toggle:hover .project-front { background: var(--ink); color: var(--white); }
.project-back { background: var(--ink); color: var(--white); transform: rotateY(180deg); }
.project-top { display: flex; justify-content: space-between; color: var(--cyan-dark); font-size: .65rem; }
.project-card-toggle:hover .project-front .project-top, .project-back .project-top { color: var(--cyan); }
.project-title { display: block; margin: auto 0 26px; font-size: clamp(2.2rem, 4.6vw, 4.8rem); line-height: .9; letter-spacing: -.06em; font-weight: 500; }
.project-back-title { display: block; max-width: 760px; margin: auto 0 22px; font-size: clamp(1.8rem, 3.2vw, 3.25rem); line-height: 1.02; letter-spacing: -.05em; font-weight: 500; }
.project-description { display: block; max-width: 680px; margin-bottom: 28px; color: #c1c3c5; font-size: 1rem; line-height: 1.65; }
.project-prompt { display: flex; justify-content: space-between; align-items: center; width: 100%; margin: 0 0 18px; color: var(--cyan-dark); font-size: .62rem; }
.project-prompt b { font-size: 1rem; font-weight: 400; }
.project-card-toggle:hover .project-front .project-prompt, .project-back .project-prompt { color: var(--cyan); }
.project-tags { display: flex; gap: 7px; flex-wrap: wrap; margin-top: auto; }
.project-tags span { border: 1px solid rgba(11,12,13,.23); padding: 6px 8px; font-size: .58rem; }
.project-card-toggle:hover .project-front .project-tags span { border-color: rgba(255,255,255,.24); color: #d4d6d7; }
.project-card-wide { grid-column: 1 / -1; min-height: 460px; }
.project-card-wide .project-title { font-size: clamp(2.8rem, 6vw, 6.6rem); }

.experience-intro { display: grid; grid-template-columns: 1.2fr .55fr; gap: 80px; align-items: end; margin-bottom: 110px; }
.experience-intro p { color: #9b9ea0; font-size: 1.05rem; max-width: 420px; margin: 0 0 4px; }
.timeline { border-top: 1px solid var(--line); }
.role { display: grid; grid-template-columns: 250px 1fr; gap: 50px; padding: 48px 0; border-bottom: 1px solid var(--line); }
.role-meta { display: flex; flex-direction: column; gap: 7px; color: #85898d; font-size: .7rem; }
.company { color: var(--cyan); font-size: .7rem; margin: 0 0 9px; }
.role h3 { margin: 0; font-size: clamp(1.55rem, 3vw, 3rem); line-height: 1.08; letter-spacing: -.045em; font-weight: 500; }
.role-body > p:not(.company) { color: #b3b5b7; max-width: 760px; }
.role ul { color: #b3b5b7; padding-left: 18px; max-width: 850px; }
.role li { margin: 9px 0; padding-left: 4px; }
.featured-role { padding-block: 65px; }
.featured-role h3 { font-size: clamp(2.2rem, 4vw, 4rem); }
details { margin-top: 18px; }
summary { display: flex; justify-content: space-between; align-items: center; max-width: 760px; padding: 13px 0; border-top: 1px solid rgba(255,255,255,.13); cursor: pointer; color: #bfc1c3; list-style: none; font-size: .86rem; }
summary::-webkit-details-marker { display: none; }
.role summary span { color: var(--cyan); font-size: 1.35rem; transition: transform .25s ease; }
.role details[open] summary span { transform: rotate(45deg); }

.education-list { margin-top: 90px; border-top: 1px solid var(--dark-line); }
.education-list article { display: grid; grid-template-columns: 210px 1fr; gap: 50px; padding: 35px 0; border-bottom: 1px solid var(--dark-line); }
.education-list span { color: var(--cyan-dark); font-size: .72rem; }
.education-list h3 { margin: 0 0 5px; font-size: clamp(1.25rem, 2.6vw, 2.25rem); line-height: 1.2; letter-spacing: -.035em; font-weight: 500; }
.education-list p { margin: 0; color: #66696c; }

.faq-layout { display: grid; grid-template-columns: .8fr 1fr; gap: clamp(70px, 10vw, 150px); align-items: start; }
.faq-intro { max-width: 520px; margin: 38px 0 0; color: #9b9ea0; font-size: 1.05rem; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { margin: 0; border-bottom: 1px solid var(--line); }
.faq-list summary { display: grid; grid-template-columns: minmax(0,1fr) 32px; gap: 22px; max-width: none; padding: 25px 0; border: 0; color: var(--white); font-size: 1.05rem; line-height: 1.45; }
.faq-list summary strong { font-weight: 500; }
.faq-list summary i { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid rgba(255,255,255,.35); border-radius: 50%; color: var(--cyan); font-style: normal; font-size: 1.1rem; line-height: 1; transition: transform .25s ease, border-color .2s ease; }
.faq-list summary:hover i, .faq-list summary:focus-visible i { border-color: var(--cyan); }
.faq-list summary:focus-visible { outline: 2px solid var(--cyan); outline-offset: 5px; }
.faq-list details[open] summary i { transform: rotate(45deg); }
.faq-list details > p { margin: -5px 52px 25px 0; color: #aeb1b3; line-height: 1.75; }

.contact { padding: 140px 0; background: var(--ink); }
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: end; }
.contact .section-index { color: var(--cyan); }
.contact-title { margin: 0; font-size: clamp(4rem, 8vw, 8rem); line-height: .84; letter-spacing: -.075em; font-weight: 500; }
.contact-links { border-top: 1px solid var(--line); }
.contact-links a { display: grid; grid-template-columns: 80px 1fr 22px; align-items: center; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.contact-links span { color: #777a7d; font: 400 .7rem "DM Mono", monospace; text-transform: uppercase; }
.contact-links strong { font-size: .95rem; font-weight: 500; word-break: break-word; }
.contact-links i { color: var(--cyan); font-style: normal; transition: transform .2s ease; }
.contact-links a:hover i { transform: translate(3px,-3px); }
.site-footer { display: flex; justify-content: space-between; width: var(--shell); margin: 0 auto; padding: 27px 0; color: #777a7d; font-size: .66rem; text-transform: uppercase; }

.reveal { opacity: 0; transform: translateY(25px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } .reveal { opacity: 1; transform: none; } }

@media (max-width: 900px) {
  :root { --shell: min(100% - 38px, 760px); }
  .site-header { width: var(--shell); }
  .menu-toggle { display: block; z-index: 2; }
  .site-nav { position: fixed; inset: 0; padding: 100px 28px 40px; background: rgba(10,11,12,.97); flex-direction: column; justify-content: center; gap: 28px; font-size: 1.5rem; opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease; }
  .site-nav.open { opacity: 1; visibility: visible; }
  .hero { padding-inline: 19px; padding-top: 130px; min-height: auto; }
  .hero-grid { grid-template-columns: 1fr; padding-block: 85px 60px; }
  .hero h1 { font-size: clamp(4rem, 16vw, 7rem); }
  .portrait-wrap { width: min(68vw, 360px); margin: 45px auto 0; }
  .hero-status { left: 19px; top: 95px; }
  .scroll-cue { display: none; }
  .about-layout, .expertise-head, .portfolio-intro, .experience-intro, .faq-layout, .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .metrics { gap: 12px; }
  .section { padding: 90px 0; }
  .section-index { margin-bottom: 38px; }
  .role { grid-template-columns: 1fr; gap: 14px; padding: 35px 0; }
  .role-meta { flex-direction: row; justify-content: space-between; }
  .experience-intro { margin-bottom: 65px; }
  .education-list article { grid-template-columns: 1fr; gap: 9px; }
  .project-card { min-height: 420px; }
}

@media (max-width: 560px) {
  .hero h1 { font-size: 3.75rem; }
  .hero-statement { font-size: 1.7rem; }
  .portrait-wrap { width: 74vw; }
  .metrics { grid-template-columns: 1fr; }
  .metrics div { padding: 13px 0; border-bottom: 1px solid var(--dark-line); }
  .expertise-item summary { grid-template-columns: 36px minmax(0,1fr) 30px; gap: 10px; padding: 17px 0; }
  .expertise-item strong { font-size: 1.22rem; }
  .expertise-item summary i { width: 28px; height: 28px; }
  .expertise-item > p { margin: 0 38px 20px 46px; font-size: .92rem; }
  .contact-links a { grid-template-columns: 1fr 22px; }
  .contact-links span { grid-column: 1 / -1; }
  .site-footer { flex-direction: column; gap: 8px; }
  .project-grid { grid-template-columns: 1fr; }
  .project-card-wide { grid-column: auto; }
  .project-face { padding: 25px; }
  .project-title { font-size: clamp(2.25rem, 12vw, 4rem); }
  .project-card-wide .project-title { font-size: clamp(2.25rem, 12vw, 4rem); }
  .project-back-title { font-size: 1.85rem; }
}