:root {
  --bg: #070a12;
  --surface: #0c111c;
  --surface-2: #111827;
  --text: #eef3ff;
  --muted: #8b96aa;
  --line: rgba(153, 174, 211, 0.16);
  --cyan: #75f4e8;
  --blue: #678cff;
  --glow: rgba(65, 217, 212, 0.18);
  --mono: "DM Mono", monospace;
  --sans: "Noto Sans SC", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 14%, rgba(70, 94, 230, 0.13), transparent 32rem),
    radial-gradient(circle at 20% 64%, rgba(48, 201, 188, 0.06), transparent 28rem),
    var(--bg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
  opacity: .24;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }
.noise { position: fixed; inset: 0; z-index: 20; pointer-events: none; opacity: .035; 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='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E"); }
.section-shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.mono, .eyebrow, .section-label, .panel-head, .filter, .project-number { font-family: var(--mono); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1240px, calc(100% - 32px));
  min-height: 72px;
  margin: 12px auto 0;
  padding: 0 20px;
  border: 1px solid var(--line);
  background: rgba(7, 10, 18, .76);
  backdrop-filter: blur(18px);
}
.brand { display: flex; gap: 11px; align-items: center; font-weight: 700; }
.brand-mark { display: grid; place-items: center; width: 32px; height: 32px; color: var(--bg); background: var(--cyan); font-size: .9rem; }
.nav { display: flex; gap: 30px; color: var(--muted); font-size: .9rem; }
.nav a, .header-link, .footer a { transition: color .2s ease; }
.nav a:hover, .header-link:hover, .footer a:hover { color: var(--cyan); }
.header-link { color: var(--cyan); font-family: var(--mono); font-size: .82rem; }

.hero { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(330px, .75fr); gap: 70px; align-items: center; min-height: calc(100vh - 84px); padding-block: 90px; }
.eyebrow { color: var(--cyan); font-size: .8rem; letter-spacing: .08em; }
.status-dot { display: inline-block; width: 7px; height: 7px; margin-right: 9px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); animation: pulse 2s infinite; }
.hero h1, .about h2, .section-heading h2, .journey-title h2, .contact h2 { margin: 0; line-height: 1.12; letter-spacing: -.045em; }
.hero h1 { margin-top: 24px; font-size: clamp(3rem, 6.6vw, 6.4rem); font-weight: 800; }
.hero h1 span { color: transparent; background: linear-gradient(100deg, var(--cyan), #87a0ff 70%); -webkit-background-clip: text; background-clip: text; }
.hero-intro { max-width: 680px; margin: 34px 0; color: var(--muted); font-size: 1.08rem; }
.hero-actions, .contact-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 26px; }
.button { display: inline-flex; min-height: 50px; padding: 0 24px; align-items: center; justify-content: center; border: 1px solid var(--cyan); font-weight: 600; }
.button-primary { color: var(--bg); background: var(--cyan); box-shadow: 0 0 32px var(--glow); transition: transform .2s ease, box-shadow .2s ease; }
.button-primary:hover { transform: translateY(-2px); box-shadow: 0 0 46px rgba(65, 217, 212, .28); }
.text-link { border-bottom: 1px solid var(--line); padding-bottom: 4px; }
.text-link span { color: var(--cyan); }

.hero-panel { position: relative; min-height: 520px; padding: 24px; border: 1px solid var(--line); background: linear-gradient(145deg, rgba(16, 25, 42, .88), rgba(8, 12, 21, .94)); box-shadow: 0 28px 90px rgba(0, 0, 0, .34); overflow: hidden; }
.hero-panel::before { position: absolute; inset: 0; content: ""; background: linear-gradient(90deg, transparent 49.7%, rgba(117, 244, 232, .1) 50%, transparent 50.3%); }
.panel-head { position: relative; display: flex; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .75rem; }
.panel-state { color: var(--cyan); }
.avatar-orbit { position: relative; display: grid; place-items: center; height: 270px; }
.avatar-core { display: grid; place-items: center; width: 104px; height: 104px; border: 1px solid var(--cyan); color: var(--cyan); background: rgba(117, 244, 232, .04); font: 500 1.25rem var(--mono); box-shadow: inset 0 0 26px var(--glow), 0 0 36px var(--glow); clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%); }
.orbit { position: absolute; border: 1px solid rgba(117, 244, 232, .22); border-radius: 50%; animation: spin 14s linear infinite; }
.orbit::after { position: absolute; top: 50%; left: -4px; width: 7px; height: 7px; content: ""; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.orbit-one { width: 180px; height: 180px; }
.orbit-two { width: 230px; height: 130px; animation-direction: reverse; animation-duration: 18s; }
.system-list { position: relative; margin: 0; }
.system-list div { display: flex; justify-content: space-between; gap: 18px; padding: 10px 0; border-top: 1px solid var(--line); }
.system-list dt { color: var(--muted); }
.system-list dd { margin: 0; text-align: right; }
.signal { position: absolute; right: 24px; bottom: 0; display: flex; align-items: end; gap: 4px; height: 34px; }
.signal i { display: block; width: 3px; background: var(--cyan); animation: equalize 1.2s ease-in-out infinite alternate; }
.signal i:nth-child(2n) { animation-delay: -.5s; }.signal i:nth-child(3n) { animation-delay: -.8s; }

.ticker { overflow: hidden; border-block: 1px solid var(--line); color: var(--muted); font: .78rem var(--mono); letter-spacing: .12em; }
.ticker-track { display: flex; width: max-content; align-items: center; gap: 36px; padding: 17px 0; animation: ticker 28s linear infinite; }
.ticker-track i { width: 5px; height: 5px; background: var(--cyan); transform: rotate(45deg); }

.about, .notes, .journey, .projects { padding-block: 130px; }
.section-label { display: flex; gap: 16px; align-items: center; margin-bottom: 64px; color: var(--muted); font-size: .78rem; letter-spacing: .08em; }
.section-label span { color: var(--cyan); }
.section-label::after { flex: 1; height: 1px; content: ""; background: var(--line); }
.about-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 100px; align-items: start; }
.about h2, .section-heading h2, .journey-title h2 { font-size: clamp(2rem, 4vw, 4rem); }
.about-copy { color: var(--muted); }
.about-copy p:first-child { margin-top: 0; color: var(--text); font-size: 1.15rem; }
.skill-cloud { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 32px; }
.skill-cloud span { padding: 7px 12px; border: 1px solid var(--line); color: #aeb9cc; background: rgba(255,255,255,.02); font: .77rem var(--mono); }

.notes { border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 44px; }
.section-heading p { max-width: 450px; margin: 0; color: var(--muted); text-align: right; }
.filter-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.filter { padding: 9px 15px; border: 1px solid var(--line); color: var(--muted); background: transparent; cursor: pointer; transition: .2s ease; }
.filter:hover, .filter.active { border-color: var(--cyan); color: var(--cyan); background: rgba(117,244,232,.06); }
.note-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.note-card { min-height: 260px; padding: 28px; border: 1px solid var(--line); background: rgba(13, 18, 30, .76); transition: transform .25s ease, border-color .25s ease; }
.note-card:hover { transform: translateY(-5px); border-color: rgba(117,244,232,.48); }
.note-meta { display: flex; justify-content: space-between; color: var(--muted); font: .74rem var(--mono); }
.note-tag { color: var(--cyan); }
.note-card h3 { margin: 34px 0 18px; line-height: 1.4; font-size: 1.25rem; }
.note-card p { margin: 0; color: var(--muted); font-size: .94rem; }
.note-card.is-hidden { display: none; }

.journey { border-top: 1px solid var(--line); }
.journey-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; }
.journey-title { position: sticky; top: 120px; align-self: start; }
.journey-title .mono { color: var(--cyan); font-size: .78rem; }
.timeline { position: relative; }
.timeline::before { position: absolute; top: 12px; bottom: 12px; left: 6px; width: 1px; content: ""; background: var(--line); }
.timeline-item { position: relative; padding: 0 0 52px 42px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before { position: absolute; top: 9px; left: 0; width: 11px; height: 11px; content: ""; border: 1px solid var(--cyan); background: var(--bg); transform: rotate(45deg); }
.timeline-item time { color: var(--cyan); font: .76rem var(--mono); }
.timeline-item h3 { margin: 8px 0 6px; font-size: 1.16rem; }
.timeline-item p { margin: 0; color: var(--muted); }

.projects { border-top: 1px solid var(--line); }
.project-list { border-top: 1px solid var(--line); }
.project-card { display: grid; grid-template-columns: 72px 1.2fr 1fr auto; gap: 30px; align-items: center; padding: 32px 8px; border-bottom: 1px solid var(--line); transition: background .25s ease, padding .25s ease; }
.project-card:hover { padding-inline: 18px; background: linear-gradient(90deg, rgba(117,244,232,.06), transparent); }
.project-number { color: var(--cyan); font-size: .78rem; }
.project-card h3 { margin: 0 0 6px; font-size: 1.35rem; }
.project-card p { margin: 0; color: var(--muted); }
.project-tech { display: flex; flex-wrap: wrap; gap: 8px; }
.project-tech span { color: #abb7cb; font: .75rem var(--mono); }
.project-status { padding: 6px 10px; border: 1px solid var(--line); color: var(--muted); font: .72rem var(--mono); white-space: nowrap; }

.contact { padding-block: 60px 130px; }
.contact-card { position: relative; padding: clamp(36px, 7vw, 90px); border: 1px solid rgba(117,244,232,.28); background: linear-gradient(135deg, rgba(18, 34, 54, .94), rgba(8, 13, 23, .96)); overflow: hidden; }
.contact-card::after { position: absolute; right: -120px; bottom: -220px; width: 420px; height: 420px; content: ""; border: 1px solid rgba(117,244,232,.14); border-radius: 50%; box-shadow: 0 0 0 60px rgba(117,244,232,.02), 0 0 0 120px rgba(117,244,232,.018); }
.contact h2 { max-width: 760px; font-size: clamp(2.6rem, 5.8vw, 5.8rem); }
.contact-card > p:not(.eyebrow) { max-width: 600px; margin: 30px 0; color: var(--muted); }
.contact-actions { position: relative; z-index: 1; }
.is-placeholder { opacity: .7; cursor: default; }
.contact-actions .mono { color: var(--muted); font-size: .8rem; }

.footer { display: flex; justify-content: space-between; gap: 20px; padding-block: 30px; border-top: 1px solid var(--line); color: var(--muted); font-size: .82rem; }
.footer p { margin: 0; }
.footer .mono { font-size: .72rem; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

@keyframes pulse { 50% { opacity: .45; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes equalize { from { height: 6px; } to { height: 28px; } }
@keyframes ticker { to { transform: translateX(-50%); } }

@media (max-width: 900px) {
  .nav { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; padding-block: 90px 70px; }
  .hero-panel { min-height: 480px; }
  .about-grid, .journey-layout { grid-template-columns: 1fr; gap: 48px; }
  .journey-title { position: static; }
  .note-grid { grid-template-columns: 1fr 1fr; }
  .project-card { grid-template-columns: 48px 1fr auto; }
  .project-tech { grid-column: 2 / -1; }
}

@media (max-width: 620px) {
  .section-shell { width: min(100% - 30px, 1180px); }
  .site-header { width: calc(100% - 20px); margin-top: 8px; min-height: 62px; }
  .header-link { display: none; }
  .hero { gap: 48px; padding-top: 72px; }
  .hero h1 { font-size: clamp(2.7rem, 14vw, 4rem); }
  .hero-panel { min-height: 455px; padding: 18px; }
  .about, .notes, .journey, .projects { padding-block: 90px; }
  .section-label { margin-bottom: 44px; }
  .section-heading { display: block; }
  .section-heading p { margin-top: 16px; text-align: left; }
  .note-grid { grid-template-columns: 1fr; }
  .project-card { grid-template-columns: 34px 1fr; gap: 18px; }
  .project-status { grid-column: 2; justify-self: start; }
  .project-tech { grid-column: 2; }
  .footer { flex-direction: column; }
}

@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; }
}