:root {
  color-scheme: dark;
  --bg: #071719;
  --bg-soft: #0b2023;
  --ink: #f1f7f6;
  --muted: #a8bcba;
  --line: rgba(198, 232, 227, 0.16);
  --accent: #6ee7c4;
  --accent-strong: #2bd3aa;
  --paper: #eff5f3;
  --paper-ink: #0c2428;
  --paper-muted: #506467;
  --container: 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", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
svg { display: block; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.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; z-index: 100; left: 16px; top: -80px; padding: 10px 16px; background: var(--accent); color: var(--bg); font-weight: 700; transition: top .2s; }
.skip-link:focus { top: 16px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background .25s, border-color .25s, backdrop-filter .25s;
}
.site-header.scrolled { background: rgba(7, 23, 25, .88); border-color: var(--line); backdrop-filter: blur(14px); }
.nav-wrap { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: .95rem; font-weight: 700; letter-spacing: -.01em; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid rgba(110, 231, 196, .65); color: var(--accent); font-size: .72rem; letter-spacing: .06em; }
.site-nav { display: flex; align-items: center; gap: 30px; font-size: .88rem; color: var(--muted); }
.site-nav a { transition: color .2s; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--ink); }
.site-nav .nav-resume { padding: 10px 15px; border: 1px solid rgba(110, 231, 196, .45); color: var(--accent); }
.menu-button { display: none; }

.hero {
  position: relative;
  overflow: hidden;
  min-height: 760px;
  padding: 160px 0 42px;
  background:
    radial-gradient(circle at 12% 12%, rgba(43, 211, 170, .10), transparent 28rem),
    radial-gradient(circle at 92% 80%, rgba(52, 141, 152, .12), transparent 30rem),
    var(--bg);
}
.hero-grid { position: absolute; inset: 0; opacity: .25; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 64px 64px; mask-image: linear-gradient(to bottom, transparent, black 20%, black 75%, transparent); }
.hero-layout { position: relative; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(340px, .75fr); align-items: center; gap: 72px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 24px; color: var(--accent); font-size: .77rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; }
.eyebrow span { width: 34px; height: 1px; background: var(--accent); }
.hero h1 { max-width: 750px; margin: 0; font-size: clamp(3.4rem, 7vw, 6.9rem); line-height: .94; letter-spacing: -.065em; font-weight: 650; }
.hero h1 em { color: var(--accent); font-family: Georgia, "Times New Roman", serif; font-weight: 400; }
.hero-intro { max-width: 690px; margin: 30px 0 0; color: var(--muted); font-size: clamp(1.05rem, 1.5vw, 1.24rem); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 50px; padding: 0 20px; border: 1px solid var(--line); font-size: .9rem; font-weight: 700; transition: transform .2s, background .2s, color .2s, border-color .2s; }
.button svg { width: 20px; height: 20px; }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-primary { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.button-primary:hover { background: #8df0d4; }
.button-secondary:hover { border-color: rgba(110, 231, 196, .7); color: var(--accent); }

.hero-panel { position: relative; border: 1px solid rgba(110, 231, 196, .28); background: rgba(8, 30, 33, .72); box-shadow: 0 40px 90px rgba(0, 0, 0, .28); backdrop-filter: blur(10px); }
.hero-panel::before, .hero-panel::after { content: ""; position: absolute; width: 18px; height: 18px; border-color: var(--accent); }
.hero-panel::before { inset: -1px auto auto -1px; border-top: 2px solid; border-left: 2px solid; }
.hero-panel::after { inset: auto -1px -1px auto; border-right: 2px solid; border-bottom: 2px solid; }
.panel-topline, .panel-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 15px 18px; color: #91a7a5; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .68rem; letter-spacing: .06em; }
.panel-topline { border-bottom: 1px solid var(--line); }
.available { display: inline-flex; align-items: center; gap: 7px; color: var(--accent); }
.available i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.panel-core { padding: 32px; min-height: 335px; }
.panel-index { color: var(--accent); font-family: Georgia, serif; font-size: 4rem; line-height: 1; opacity: .36; }
.panel-core p { max-width: 300px; margin: 24px 0 20px; color: var(--muted); }
.panel-core ul { display: grid; gap: 10px; margin: 0; padding: 0; list-style: none; }
.panel-core li { display: flex; align-items: center; gap: 11px; color: var(--ink); font-size: 1.02rem; font-weight: 650; }
.panel-core li::before { content: ""; width: 6px; height: 6px; border: 1px solid var(--accent); transform: rotate(45deg); }
.panel-footer { border-top: 1px solid var(--line); }
.panel-footer a { color: var(--ink); }
.hero-footnote { position: relative; display: flex; align-items: center; gap: 16px; margin-top: 74px; color: #65807e; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .66rem; letter-spacing: .1em; }
.hero-footnote i { flex: 1; height: 1px; background: var(--line); }

.section { padding: 118px 0; }
.about, .skills { background: var(--paper); color: var(--paper-ink); }
.section-grid { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 50px; }
.section-label { display: flex; align-items: center; gap: 12px; align-self: start; color: #5c7376; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; }
.section-label span { color: #088f87; }
.section-label.light { color: #89a7a4; }
.section-label.light span { color: var(--accent); }
.section h2, .contact h2 { margin: 0; font-size: clamp(2.25rem, 4.2vw, 4.5rem); line-height: 1.05; letter-spacing: -.05em; font-weight: 620; }
.about-content h2 { max-width: 850px; }
.about-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 42px; color: var(--paper-muted); font-size: 1.06rem; }
.about-columns p { margin: 0; }
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 60px; background: #cbd8d6; border: 1px solid #cbd8d6; }
.facts div { min-height: 112px; padding: 21px; background: var(--paper); }
.facts span, .contact-actions span { display: block; color: #6b7f81; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; }
.facts strong { display: block; margin-top: 20px; font-size: .94rem; }

.projects { background: #0a1d20; }
.section-heading { display: grid; grid-template-columns: 190px 1fr; gap: 50px; margin-bottom: 62px; }
.section-heading h2 { max-width: 850px; }
.project-card { position: relative; display: grid; grid-template-columns: 70px minmax(0, 1.02fr) minmax(360px, .98fr); gap: 38px; min-height: 480px; margin-top: 24px; padding: 30px; border: 1px solid var(--line); background: rgba(7, 23, 25, .64); overflow: hidden; }
.project-card::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 3px; background: linear-gradient(to bottom, var(--accent), transparent 72%); opacity: .8; }
.project-number { color: #55716e; font-family: Georgia, serif; font-size: 2.6rem; line-height: 1; }
.project-main { align-self: center; padding: 28px 0; }
.project-kicker { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .68rem; letter-spacing: .11em; text-transform: uppercase; }
.project-main h3 { margin: 11px 0 18px; font-size: clamp(2rem, 3vw, 3.2rem); line-height: 1; letter-spacing: -.04em; }
.project-summary { max-width: 600px; margin: 0; color: var(--muted); font-size: 1.02rem; }
.project-points { display: grid; gap: 8px; margin: 24px 0 28px; padding: 0; list-style: none; color: #c3d2d0; font-size: .9rem; }
.project-points li { position: relative; padding-left: 18px; }
.project-points li::before { content: ""; position: absolute; left: 0; top: .72em; width: 7px; height: 1px; background: var(--accent); }
.text-link { display: inline-flex; align-items: center; gap: 10px; padding-bottom: 5px; border-bottom: 1px solid rgba(110, 231, 196, .35); color: var(--accent); font-weight: 700; font-size: .88rem; }
.text-link svg { width: 18px; height: 18px; transition: transform .2s; }
.text-link:hover svg { transform: translate(3px, -3px); }
.repo-note { display: inline-block; color: #849b99; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .72rem; }
.project-visual { position: relative; align-self: stretch; min-height: 360px; overflow: hidden; border-left: 1px solid var(--line); background: #061417; }

.fpga-visual { display: grid; place-items: center; background: radial-gradient(circle at 50% 45%, rgba(34, 149, 132, .14), transparent 48%), #061417; }
.visual-label { position: absolute; top: 17px; left: 18px; color: #64827f; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .62rem; letter-spacing: .1em; }
.chip { position: relative; z-index: 2; display: grid; place-items: center; width: 164px; aspect-ratio: 1; border: 1px solid rgba(110, 231, 196, .58); background: #0b2325; box-shadow: 0 0 60px rgba(43, 211, 170, .10), inset 0 0 28px rgba(43, 211, 170, .06); }
.chip::before, .chip::after { content: ""; position: absolute; inset: 16px; border: 1px solid rgba(110, 231, 196, .18); }
.chip::after { inset: 30px; border-style: dashed; }
.chip-label { position: relative; z-index: 2; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .72rem; letter-spacing: .13em; }
.chip-grid { position: absolute; inset: 6px; opacity: .12; background-image: linear-gradient(var(--accent) 1px, transparent 1px), linear-gradient(90deg, var(--accent) 1px, transparent 1px); background-size: 12px 12px; }
.pin { position: absolute; width: 13px; height: 4px; background: var(--accent); opacity: .7; }
.p1,.p2 { left: -13px; } .p3,.p4 { right: -13px; } .p5,.p6 { top: -9px; width: 4px; height: 9px; } .p7,.p8 { bottom: -9px; width: 4px; height: 9px; }
.p1 { top: 44px; } .p2 { bottom: 44px; } .p3 { top: 44px; } .p4 { bottom: 44px; } .p5 { left: 44px; } .p6 { right: 44px; } .p7 { left: 44px; } .p8 { right: 44px; }
.trace-lines { position: absolute; inset: 0; width: 100%; height: 100%; stroke: rgba(110, 231, 196, .36); stroke-width: 1; }
.trace-lines circle { fill: var(--accent); stroke: none; }
.signal { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 16px var(--accent); animation: pulse 2.4s ease-in-out infinite; }
.signal-a { left: 17%; top: 33%; } .signal-b { right: 12%; bottom: 26%; animation-delay: 1.1s; }
@keyframes pulse { 0%,100% { opacity: .3; transform: scale(.7); } 50% { opacity: 1; transform: scale(1.1); } }

.terminal-visual { align-self: center; min-height: 330px; margin-block: 20px; border: 1px solid rgba(148, 193, 188, .16); box-shadow: 0 34px 70px rgba(0, 0, 0, .26); }
.terminal-bar { display: flex; align-items: center; gap: 7px; height: 42px; padding: 0 14px; border-bottom: 1px solid var(--line); color: #627f7c; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .66rem; }
.terminal-bar i { width: 7px; height: 7px; border-radius: 50%; background: #385452; }
.terminal-bar span { margin-left: 8px; }
.terminal-content { padding: 23px 25px; color: #a6bfbc; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .76rem; line-height: 1.7; }
.terminal-content p { margin: 0 0 5px; }
.terminal-content b { color: var(--accent); }
.terminal-content .output { padding-left: 17px; color: #597673; }
.terminal-content .tree { padding-left: 17px; color: #d4e0de; }
.cursor { display: inline-block; width: 7px; height: 14px; background: var(--accent); vertical-align: -2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.skills { border-top: 1px solid #d2dddb; }
.skill-groups { margin-top: 52px; border-top: 1px solid #c7d5d3; }
.skill-group { display: grid; grid-template-columns: 70px 180px 1fr; gap: 24px; align-items: start; padding: 26px 0; border-bottom: 1px solid #c7d5d3; }
.skill-index { color: #6e898b; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .7rem; }
.skill-group h3 { margin: 0; font-size: 1rem; }
.skill-group p { margin: 0; color: var(--paper-muted); }

.contact { padding: 110px 0; background: #0d292c; border-top: 1px solid rgba(110, 231, 196, .2); }
.contact-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(400px, .78fr); gap: 84px; align-items: end; }
.contact h2 { max-width: 720px; margin-top: 34px; }
.contact-actions { border-top: 1px solid var(--line); }
.contact-actions a { display: grid; grid-template-columns: 90px 1fr 24px; gap: 14px; align-items: center; min-height: 80px; border-bottom: 1px solid var(--line); transition: padding-left .2s, border-color .2s; }
.contact-actions a:hover { padding-left: 8px; border-color: rgba(110, 231, 196, .5); }
.contact-actions strong { font-size: .9rem; overflow-wrap: anywhere; }
.contact-actions i { color: var(--accent); font-style: normal; font-size: 1.25rem; }

footer { border-top: 1px solid var(--line); background: var(--bg); color: #78918f; }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; padding: 28px 0; font-size: .75rem; }
.footer-inner a { color: var(--accent); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

@media (max-width: 980px) {
  .hero { padding-top: 130px; }
  .hero-layout { grid-template-columns: 1fr; gap: 54px; }
  .hero-copy { max-width: 780px; }
  .hero-panel { max-width: 620px; }
  .section-grid, .section-heading { grid-template-columns: 1fr; gap: 30px; }
  .project-card { grid-template-columns: 54px 1fr; }
  .project-visual { grid-column: 1 / -1; min-height: 360px; border-left: 0; border-top: 1px solid var(--line); }
  .contact-layout { grid-template-columns: 1fr; gap: 60px; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 32px), var(--container)); }
  .nav-wrap { min-height: 68px; }
  .menu-button { display: grid; width: 42px; height: 42px; place-content: center; gap: 6px; border: 1px solid var(--line); background: transparent; color: var(--ink); }
  .menu-button span:not(.sr-only) { display: block; width: 18px; height: 1px; background: currentColor; transition: transform .2s; }
  .menu-button[aria-expanded="true"] span:nth-last-child(2) { transform: translateY(3.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav { position: absolute; inset: 68px 0 auto; display: none; align-items: stretch; gap: 0; padding: 12px 16px 20px; border-bottom: 1px solid var(--line); background: rgba(7, 23, 25, .98); }
  .site-nav.open { display: grid; }
  .site-nav a { padding: 13px 4px; border-bottom: 1px solid var(--line); }
  .site-nav .nav-resume { margin-top: 12px; text-align: center; }
  .hero { min-height: auto; padding: 124px 0 34px; }
  .hero h1 { font-size: clamp(3.15rem, 15vw, 5.4rem); }
  .hero-intro { margin-top: 24px; }
  .hero-panel { width: 100%; }
  .panel-topline { align-items: flex-start; }
  .panel-core { min-height: auto; padding: 26px 22px 30px; }
  .panel-index { font-size: 3.1rem; }
  .panel-footer { flex-wrap: wrap; }
  .hero-footnote { margin-top: 50px; }
  .section { padding: 82px 0; }
  .about-columns { grid-template-columns: 1fr; gap: 22px; margin-top: 32px; }
  .facts { grid-template-columns: 1fr 1fr; margin-top: 42px; }
  .facts div { min-height: 100px; }
  .project-card { grid-template-columns: 1fr; gap: 10px; padding: 22px; }
  .project-number { font-size: 2rem; }
  .project-main { padding: 16px 0 24px; }
  .project-visual { grid-column: 1; min-height: 310px; }
  .terminal-visual { margin: 0; }
  .skill-group { grid-template-columns: 45px 1fr; gap: 14px; }
  .skill-group p { grid-column: 2; }
  .contact { padding: 82px 0; }
  .contact-actions a { grid-template-columns: 72px 1fr 18px; }
  .footer-inner { flex-direction: column; gap: 6px; }
}

@media (max-width: 440px) {
  .hero-actions { display: grid; }
  .button { width: 100%; }
  .facts { grid-template-columns: 1fr; }
  .facts div { min-height: 86px; }
  .facts strong { margin-top: 12px; }
  .contact-actions a { grid-template-columns: 1fr 22px; gap: 4px 12px; padding: 14px 0; }
  .contact-actions span { grid-column: 1; }
  .contact-actions strong { grid-column: 1; }
  .contact-actions i { grid-column: 2; grid-row: 1 / 3; align-self: center; }
}

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