:root {
  --bg: #050a0f;
  --surface: #091118;
  --surface-2: #0d1720;
  --line: rgba(144, 171, 194, .18);
  --text: #eef4f8;
  --muted: #9aabba;
  --blue: #0799ff;
  --blue-2: #006dcc;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  line-height: 1.6;
}
body.light {
  --bg: #f4f7fa;
  --surface: #fff;
  --surface-2: #eaf0f5;
  --line: rgba(20, 50, 70, .15);
  --text: #0a1720;
  --muted: #536675;
}
a { color: inherit; text-decoration: none; }
.container { width: min(calc(100% - 48px), var(--max)); margin: auto; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(5,10,15,.86); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
body.light .site-header { background: rgba(244,247,250,.9); }
.nav-wrap { min-height: 70px; display: flex; align-items: center; gap: 30px; }
.brand { margin-right: auto; display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-weight: 800; font-size: 20px; letter-spacing: .05em; }
.brand-name b, em { color: var(--blue); font-style: normal; }
.brand-role { font-size: 10px; color: var(--muted); letter-spacing: .13em; margin-top: 5px; }
.nav { display: flex; gap: 30px; }
.nav a { font-size: 13px; color: #b9c7d1; padding: 25px 0 21px; border-bottom: 2px solid transparent; }
.nav a:hover, .nav a.active { color: var(--text); border-color: var(--blue); }
.theme-toggle, .menu-toggle {
  border: 0; color: var(--text); background: transparent; cursor: pointer;
}
.theme-toggle { font-size: 21px; }
.menu-toggle { display: none; font-size: 23px; }

.hero { min-height: 590px; position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-bg {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, var(--bg) 0%, rgba(5,10,15,.98) 32%, rgba(5,10,15,.48) 62%, rgba(5,10,15,.18)),
    radial-gradient(circle at 76% 45%, rgba(0,125,220,.22), transparent 35%),
    linear-gradient(120deg, #07111a, #132c3c 55%, #050a0f);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0; opacity: .18;
  background-image: linear-gradient(rgba(30,150,230,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(30,150,230,.18) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(90deg, transparent, #000 60%);
}
.hero-grid { position: relative; min-height: 590px; display: flex; align-items: center; }
.hero-copy { max-width: 680px; padding: 70px 0; }
.eyebrow { color: var(--muted); font-size: 10px; letter-spacing: .15em; font-weight: 700; margin-bottom: 18px; }
.eyebrow span { display: inline-block; width: 24px; height: 3px; background: var(--blue); vertical-align: middle; margin-right: 8px; }
h1 { font-size: clamp(42px, 6vw, 70px); line-height: 1.02; letter-spacing: -.045em; margin: 0 0 20px; }
h2 { font-size: clamp(30px, 4vw, 43px); line-height: 1.12; letter-spacing: -.035em; margin: 0 0 18px; }
h3 { line-height: 1.25; margin: 6px 0 8px; }
p { color: var(--muted); }
.hero-lead { max-width: 610px; font-size: 16px; }
.hero-points { display: flex; gap: 28px; flex-wrap: wrap; margin: 28px 0; }
.hero-points div { font-size: 12px; display: flex; align-items: center; gap: 8px; }
.hero-points span { color: var(--blue); font-size: 22px; }
.button {
  display: inline-flex; align-items: center; gap: 13px;
  padding: 12px 18px; border: 1px solid var(--blue);
  border-radius: 5px; font-size: 12px; font-weight: 700;
  transition: .2s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,145,255,.18); }
.primary { color: white; background: rgba(0,130,220,.08); }

.section { padding: 90px 0; border-bottom: 1px solid var(--line); }
.about-grid { display: grid; grid-template-columns: 150px 1.2fr 1fr; gap: 55px; align-items: start; }
.portrait-placeholder {
  width: 145px; height: 145px; border-radius: 50%;
  background: radial-gradient(circle at 50% 30%, #24475d, #081119 62%);
  border: 1px solid rgba(0,153,255,.5);
  display: grid; place-items: center;
  box-shadow: 0 0 0 10px rgba(0,145,255,.03);
}
.portrait-ring { width: 88px; height: 88px; border-radius: 50%; border: 1px solid rgba(0,153,255,.45); display: grid; place-items: center; text-align: center; }
.portrait-ring span { font-size: 28px; font-weight: 800; line-height: 1; }
.portrait-ring small { color: var(--blue); font-size: 8px; letter-spacing: .15em; }
.meta-row { display: flex; gap: 28px; color: #c5d3dc; font-size: 11px; margin-top: 24px; }
.service-list { border-left: 1px solid var(--line); padding-left: 28px; }
.service-list article { display: flex; gap: 16px; margin-bottom: 22px; }
.service-list i { color: var(--blue); font-style: normal; font-size: 22px; }
.service-list strong { font-size: 12px; }
.service-list p { margin: 2px 0; font-size: 11px; }

.experience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; }
.section-intro { max-width: 550px; font-size: 14px; }
.company-grid { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 38px; border: 1px solid var(--line); }
.company-grid div {
  min-height: 70px; display: grid; place-items: center; padding: 12px;
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  color: #d7e1e7; font-weight: 800; font-size: 14px; text-align: center;
}
.company-grid div:nth-child(4n) { border-right: 0; }
.company-grid span { display: block; }
.timeline { position: relative; padding-left: 30px; border-left: 2px solid var(--blue); }
.timeline-item { position: relative; margin-bottom: 38px; }
.timeline-item:last-child { margin-bottom: 0; }
.dot { position: absolute; left: -38px; top: 5px; width: 14px; height: 14px; border-radius: 50%; background: var(--blue); border: 3px solid var(--bg); }
.time { color: var(--blue); font-size: 10px; font-weight: 800; letter-spacing: .12em; }
.timeline h3 { font-size: 14px; }
.timeline ul { padding-left: 18px; margin: 8px 0; color: var(--muted); font-size: 12px; }

.skills-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 70px; align-items: center; }
.skill-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 15px 50px; }
.skill-columns ul { list-style: none; padding: 0; margin: 0; }
.skill-columns li { color: #bac9d3; font-size: 12px; margin: 12px 0; }
.skill-columns li::before { content: "✓"; color: var(--blue); margin-right: 10px; font-weight: 800; }
.skills-card { border: 1px solid rgba(0,153,255,.25); background: #03070b; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.terminal-top { display: flex; gap: 6px; align-items: center; padding: 10px 13px; border-bottom: 1px solid var(--line); color: #5d7280; font-size: 10px; }
.terminal-top span { width: 8px; height: 8px; border-radius: 50%; background: #25313a; }
.terminal-top b { margin-left: auto; font-weight: 500; }
.terminal-body { padding: 22px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.terminal-body p { margin: 10px 0 4px; color: #70818d; }
.terminal-body p span { color: var(--blue); }
.terminal-body strong { color: #e2edf3; display: block; }
.terminal-body .status { color: #32d583; }

.capabilities { background: linear-gradient(180deg, rgba(0,130,220,.025), transparent); }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; margin-top: 35px; }
.cap-card { border: 1px solid var(--line); padding: 25px; background: rgba(255,255,255,.015); transition: .2s; }
.cap-card:hover { border-color: rgba(0,153,255,.45); transform: translateY(-3px); }
.cap-card span { color: var(--blue); font-size: 11px; font-weight: 800; }
.cap-card h3 { font-size: 15px; }
.cap-card p { font-size: 11px; }

.contact { position: relative; overflow: hidden; padding: 80px 0; }
.contact-bg { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,10,15,.98), rgba(5,10,15,.76), rgba(5,10,15,.9)), radial-gradient(circle at 60% 40%, rgba(0,140,230,.18), transparent 35%); }
.contact-grid { position: relative; display: grid; grid-template-columns: 1.4fr .8fr .25fr; gap: 50px; align-items: end; }
.contact h2 { font-size: clamp(28px, 4vw, 43px); }
.contact-details { display: grid; gap: 14px; font-size: 12px; }
.contact-details a, .contact-details > span { display: flex; gap: 12px; color: var(--blue); }
.contact-details span { color: #bac9d3; }
.traits { list-style: none; padding: 0 0 0 20px; margin: 0; border-left: 2px solid var(--blue); color: #9fb1bd; font-size: 11px; }
.traits li { margin: 8px 0; }

footer { border-top: 1px solid var(--line); padding: 18px 0; color: #647783; font-size: 10px; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; }

@media (max-width: 900px) {
  .nav { display: none; position: absolute; top: 70px; left: 0; right: 0; padding: 10px 24px 20px; background: var(--surface); flex-direction: column; gap: 0; border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; }
  .menu-toggle { display: block; }
  .about-grid, .experience-grid, .skills-grid { grid-template-columns: 1fr; gap: 40px; }
  .service-list { border-left: 0; border-top: 1px solid var(--line); padding: 30px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px 25px; }
  .cards { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr 1fr; }
  .traits { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .container { width: min(calc(100% - 30px), var(--max)); }
  .brand-name { font-size: 17px; }
  .brand-role { font-size: 8px; }
  .hero, .hero-grid { min-height: 520px; }
  .hero-copy { padding: 45px 0; }
  .hero-points { gap: 12px; }
  .about-grid { grid-template-columns: 1fr; }
  .portrait-placeholder { margin: auto; }
  .service-list, .skill-columns, .cards, .contact-grid { grid-template-columns: 1fr; }
  .company-grid { grid-template-columns: repeat(2, 1fr); }
  .company-grid div:nth-child(4n) { border-right: 1px solid var(--line); }
  .company-grid div:nth-child(2n) { border-right: 0; }
  .footer-inner { flex-direction: column; }
}