:root {
  --bg: #080b0f;
  --bg-raised: #0c1118;
  --panel: #10161e;
  --panel-hover: #131b25;
  --text: #e8edf2;
  --text-muted: #a7b1bd;
  --text-faint: #738190;
  --line: #202a35;
  --accent: #7cf7c8;
  --accent-rgb: 124, 247, 200;
  --blue: #7ab7ff;
  --purple: #c49afa;
  --orange: #ffba78;
  --danger: #ff6f7d;
  --mono: "Cascadia Code", "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --sans: Inter, "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  --max: 1200px;
  --topbar: 72px;
}

[data-theme="light"] {
  --bg: #f3f5f7;
  --bg-raised: #ffffff;
  --panel: #ffffff;
  --panel-hover: #f8fafb;
  --text: #17212b;
  --text-muted: #5f6e7c;
  --text-faint: #84919d;
  --line: #dce2e7;
  --accent: #087f5b;
  --accent-rgb: 8, 127, 91;
  --blue: #2563a9;
  --purple: #7b4bb7;
  --orange: #b05f12;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--topbar) + 22px); }

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: var(--sans);
  line-height: 1.7;
  transition: color 0.25s ease, background 0.25s ease;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 75% 15%, rgba(var(--accent-rgb), 0.07), transparent 26rem),
    linear-gradient(rgba(var(--accent-rgb), 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--accent-rgb), 0.018) 1px, transparent 1px);
  background-size: auto, 42px 42px, 42px 42px;
}

::selection { color: var(--bg); background: var(--accent); }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }

.noise {
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  opacity: 0.025;
  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");
}

.scroll-progress { position: fixed; inset: 0 0 auto; z-index: 100; height: 2px; }
.scroll-progress span { display: block; width: 0; height: 100%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--topbar);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(28px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  background: color-mix(in srgb, var(--bg) 87%, transparent);
  backdrop-filter: blur(18px);
}

.brand { display: flex; gap: 11px; align-items: center; font: 600 14px var(--mono); letter-spacing: -0.02em; }
.brand-mark { display: grid; width: 32px; height: 32px; place-items: center; color: var(--bg); background: var(--accent); border-radius: 6px; }
.nav { display: flex; gap: 34px; font: 500 13px var(--mono); color: var(--text-muted); }
.nav a { position: relative; transition: color 0.2s ease; }
.nav a span { color: var(--accent); }
.nav a::after { content: ""; position: absolute; inset: auto 0 -11px; width: 0; height: 1px; background: var(--accent); transition: width 0.2s; }
.nav a:hover, .nav a.active { color: var(--text); }
.nav a:hover::after, .nav a.active::after { width: 100%; }
.topbar-actions { display: flex; gap: 10px; align-items: center; }
.icon-button, .print-button { height: 38px; border: 1px solid var(--line); background: transparent; border-radius: 5px; cursor: pointer; transition: 0.2s ease; }
.icon-button { width: 38px; font: 18px var(--mono); }
.print-button { padding: 0 15px; font: 500 12px var(--mono); }
.print-button span { margin-right: 5px; color: var(--accent); }
.icon-button:hover, .print-button:hover { border-color: var(--accent); background: rgba(var(--accent-rgb), 0.07); }

.section { width: min(var(--max), calc(100% - 56px)); margin: 0 auto; padding: 112px 0; }
.hero { min-height: calc(100vh - var(--topbar)); display: grid; align-content: center; position: relative; padding-top: 88px; }
.hero-grid { display: grid; grid-template-columns: 1.08fr 0.92fr; gap: clamp(52px, 8vw, 110px); align-items: center; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin-bottom: 28px; color: var(--accent); font: 500 12px var(--mono); letter-spacing: 0.13em; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(var(--accent-rgb), 0.1), 0 0 12px var(--accent); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: 0.45; box-shadow: 0 0 0 8px rgba(var(--accent-rgb), 0.03); } }
.code-comment { margin: 0 0 5px; color: var(--text-faint); font: 15px/1.7 var(--mono); }
.hero h1 { margin: 0; font-size: clamp(62px, 7.2vw, 102px); line-height: 1.04; letter-spacing: -0.07em; }
.cursor { color: var(--accent); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero h2 { margin: 20px 0 0; font: 500 clamp(17px, 2vw, 24px)/1.5 var(--mono); letter-spacing: -0.04em; }
.keyword { color: var(--purple); }
.string { color: var(--accent); }
.hero-description { max-width: 680px; margin: 30px 0 0; color: var(--text-muted); font-size: 17px; line-height: 2; }
.hero-description strong { color: var(--text); font-weight: 600; }
.hero-actions { display: flex; gap: 12px; margin-top: 38px; }
.primary-button, .secondary-button { display: inline-flex; height: 48px; align-items: center; justify-content: center; padding: 0 22px; border: 1px solid var(--accent); border-radius: 4px; font: 600 13px var(--mono); transition: 0.2s ease; }
.primary-button { color: var(--bg); background: var(--accent); }
.primary-button span { margin-left: 22px; font-size: 17px; transition: transform 0.2s; }
.primary-button:hover span { transform: translateX(4px); }
.secondary-button { border-color: var(--line); }
.secondary-button:hover { color: var(--accent); border-color: var(--accent); background: rgba(var(--accent-rgb), 0.05); }
.contact-row { display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 35px; color: var(--text-muted); font: 12px var(--mono); }
.contact-row > * { transition: color 0.2s; }
.contact-row a:hover { color: var(--accent); }
.contact-row span span, .contact-row a span { margin-right: 5px; color: var(--text-faint); font-size: 10px; text-transform: uppercase; }

.terminal-card { border: 1px solid var(--line); background: color-mix(in srgb, var(--panel) 92%, transparent); border-radius: 8px; box-shadow: 0 28px 80px rgba(0,0,0,.3); overflow: hidden; transform: perspective(900px) rotateY(-2deg); transition: transform .35s ease, border-color .35s ease; }
.terminal-card:hover { transform: perspective(900px) rotateY(0) translateY(-4px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.terminal-header { height: 45px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 14px; border-bottom: 1px solid var(--line); background: var(--bg-raised); color: var(--text-muted); font: 11px var(--mono); }
.window-controls { display: flex; gap: 7px; }
.window-controls i { width: 9px; height: 9px; border-radius: 50%; background: #ff6159; }
.window-controls i:nth-child(2) { background: #ffbd2e; }
.window-controls i:nth-child(3) { background: #28c941; }
.terminal-action { justify-self: end; color: var(--accent); }
.terminal-body { padding: 25px 18px 22px; font: 13px/2.05 var(--mono); white-space: nowrap; overflow: hidden; }
.line-number { display: inline-block; width: 34px; margin-right: 13px; color: var(--text-faint); text-align: right; user-select: none; }
.syntax-brace { color: var(--text-muted); }
.syntax-key { color: var(--blue); }
.syntax-value { color: var(--accent); }
.syntax-number { color: var(--orange); }
.syntax-bool { color: var(--purple); }
.terminal-command { margin: 15px 0 0 48px; padding-top: 15px; border-top: 1px dashed var(--line); color: var(--text-muted); }
.prompt { margin-right: 8px; color: var(--accent); }
.command-cursor { display: inline-block; width: 7px; height: 13px; margin-left: 6px; vertical-align: -2px; background: var(--accent); animation: blink 1s steps(2) infinite; }
.scroll-hint { position: absolute; bottom: 18px; left: 0; display: flex; align-items: center; gap: 12px; color: var(--text-faint); font: 10px var(--mono); letter-spacing: .13em; }
.scroll-hint span { display: block; width: 38px; height: 1px; background: var(--line); position: relative; overflow: hidden; }
.scroll-hint span::after { content: ""; position: absolute; inset: 0; background: var(--accent); transform: translateX(-100%); animation: scan 2s infinite; }
@keyframes scan { to { transform: translateX(100%); } }

.section-heading { display: grid; grid-template-columns: 1fr 0.52fr; gap: 70px; align-items: end; margin-bottom: 64px; padding-bottom: 32px; border-bottom: 1px solid var(--line); }
.section-index { display: block; margin-bottom: 19px; color: var(--accent); font: 500 12px var(--mono); letter-spacing: .14em; }
.section-heading h2 { margin: 0; font-size: clamp(38px, 5vw, 65px); line-height: 1.15; letter-spacing: -.055em; }
.section-heading h2 em, .contact-inner h2 em { color: var(--accent); font-style: normal; }
.section-heading > p { margin: 0 0 4px; color: var(--text-muted); font-size: 16px; line-height: 1.9; }

.about-layout { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(50px, 8vw, 110px); }
.about-copy > p { margin: 0 0 20px; color: var(--text-muted); font-size: 16px; line-height: 2.05; }
.about-copy > p:first-child::first-letter { float: left; margin: 8px 9px 0 0; color: var(--accent); font: 600 43px/0.8 var(--mono); }
.principles { display: flex; flex-wrap: wrap; gap: 12px 20px; margin-top: 29px; padding-top: 25px; border-top: 1px solid var(--line); font: 13px var(--mono); }
.principles i { color: var(--accent); font-style: normal; }
.metrics-grid { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); }
.metrics-grid article { position: relative; min-height: 155px; display: flex; flex-direction: column; justify-content: center; padding: 24px 30px; overflow: hidden; }
.metrics-grid article:nth-child(odd) { border-right: 1px solid var(--line); }
.metrics-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
.metrics-grid article::after { content: ""; position: absolute; width: 70px; height: 70px; right: -35px; bottom: -35px; border: 1px solid rgba(var(--accent-rgb),.2); border-radius: 50%; transition: .3s; }
.metrics-grid article:hover::after { transform: scale(2.2); background: rgba(var(--accent-rgb),.03); }
.metrics-grid strong { color: var(--accent); font: 600 38px/1 var(--mono); letter-spacing: -.06em; }
.metrics-grid span { margin-top: 13px; font-size: 14px; font-weight: 600; }
.metrics-grid small { color: var(--text-faint); font: 11px var(--mono); text-transform: uppercase; }

.skills-section { padding-top: 80px; }
.skill-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.skill-card { min-height: 330px; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.005); transition: background .25s, transform .25s; }
.skill-card:hover { z-index: 2; background: var(--panel-hover); transform: translateY(-3px); box-shadow: 0 15px 40px rgba(0,0,0,.13); }
.skill-card-head { display: flex; justify-content: space-between; align-items: start; color: var(--text-faint); font: 11px var(--mono); }
.skill-icon { display: grid; width: 42px; height: 42px; place-items: center; color: var(--accent); border: 1px solid rgba(var(--accent-rgb),.35); background: rgba(var(--accent-rgb),.06); font: 600 14px var(--mono); }
.skill-card h3 { margin: 35px 0 3px; font: 600 20px var(--mono); letter-spacing: -.04em; }
.skill-card > p { margin: 0 0 25px; color: var(--text-muted); font-size: 14px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 7px; }
.tag-list span, .project-tags span { padding: 6px 10px; color: var(--text-muted); border: 1px solid var(--line); background: var(--bg-raised); border-radius: 3px; font: 11px var(--mono); }
.accent-card { display: flex; flex-direction: column; justify-content: center; background: rgba(var(--accent-rgb),.035); }
.accent-card blockquote { margin: 15px 0 30px; font-size: 20px; font-weight: 600; line-height: 1.7; letter-spacing: -.03em; }
.accent-card .signature { color: var(--accent); font: 11px var(--mono); letter-spacing: .13em; }

.project-list { border-top: 1px solid var(--line); }
.project-card { display: grid; grid-template-columns: 100px 1fr; padding: 48px 0; border-bottom: 1px solid var(--line); transition: background .25s; }
.project-number { padding-top: 8px; color: var(--text-faint); font: 13px var(--mono); }
.project-main { max-width: 960px; }
.project-meta { display: flex; gap: 16px; align-items: center; color: var(--text-faint); font: 11px var(--mono); letter-spacing: .1em; }
.project-meta span + span { color: var(--accent); }
.live-badge::before { content: ""; display: inline-block; width: 5px; height: 5px; margin-right: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.project-main h3 { margin: 18px 0 0; font: 600 clamp(28px, 4vw, 48px)/1.1 var(--mono); letter-spacing: -.06em; }
.project-main h4 { margin: 8px 0 20px; color: var(--text-muted); font-size: 16px; font-weight: 500; }
.project-main > p { max-width: 820px; margin: 0; color: var(--text-muted); font-size: 16px; line-height: 1.95; }
.project-highlights { display: flex; flex-wrap: wrap; margin: 30px 0; border: 1px solid var(--line); }
.project-highlights span { min-width: 170px; padding: 15px 22px; color: var(--text-muted); border-right: 1px solid var(--line); font: 12px var(--mono); }
.project-highlights span:last-child { border-right: 0; }
.project-highlights strong { margin-right: 5px; color: var(--accent); font-size: 16px; }
details { margin-top: 25px; border-top: 1px dashed var(--line); border-bottom: 1px dashed var(--line); }
summary { display: flex; align-items: center; justify-content: space-between; padding: 17px 0; color: var(--text); font: 500 12px var(--mono); cursor: pointer; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary span { color: var(--accent); font-size: 18px; transition: transform .2s; }
details[open] summary span { transform: rotate(45deg); }
details ul { margin: 0; padding: 0 0 24px 20px; color: var(--text-muted); font-size: 14px; line-height: 1.95; }
details li { margin-bottom: 7px; padding-left: 8px; }
details li::marker { color: var(--accent); }
.project-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 25px; }
.featured .project-main h3::after { content: "FEATURED"; display: inline-block; margin-left: 16px; padding: 4px 7px; vertical-align: middle; color: var(--bg); background: var(--accent); border-radius: 2px; font: 600 9px var(--mono); letter-spacing: .1em; }

.experience-layout { display: grid; grid-template-columns: 320px 1fr; gap: 85px; }
.experience-aside { position: sticky; top: 110px; align-self: start; }
.company-index { color: var(--text-faint); font: 11px var(--mono); }
.company-logo { display: grid; width: 64px; height: 64px; margin: 23px 0; place-items: center; color: var(--bg); background: var(--accent); font: 700 27px var(--mono); clip-path: polygon(0 0,100% 0,100% 76%,76% 100%,0 100%); }
.experience-aside h3 { margin: 0; font-size: 20px; line-height: 1.5; }
.experience-aside p { margin: 6px 0 4px; color: var(--accent); font: 14px var(--mono); }
.experience-aside .date { color: var(--text-faint); font: 11px var(--mono); }
.experience-content { border-left: 1px solid var(--line); }
.experience-group { position: relative; padding: 0 0 55px 48px; }
.experience-group:last-child { padding-bottom: 0; }
.experience-group::before { content: ""; position: absolute; left: -5px; top: 7px; width: 9px; height: 9px; border: 1px solid var(--accent); background: var(--bg); transform: rotate(45deg); }
.period { color: var(--accent); font: 11px var(--mono); letter-spacing: .1em; }
.experience-group h3 { margin: 9px 0 20px; font-size: 20px; }
.experience-group ul { margin: 0; padding: 0; list-style: none; }
.experience-group li { position: relative; margin-bottom: 16px; padding-left: 20px; color: var(--text-muted); font-size: 15px; line-height: 1.9; }
.experience-group li::before { content: "→"; position: absolute; left: 0; color: var(--accent); font-family: var(--mono); }
.experience-group strong { color: var(--text); font-family: var(--mono); }

.education-section { padding-top: 70px; padding-bottom: 100px; }
.education-card { display: grid; grid-template-columns: 210px 1fr auto; align-items: center; padding: 42px; border: 1px solid var(--line); background: linear-gradient(110deg, rgba(var(--accent-rgb),.04), transparent); }
.education-card .section-index { margin: 0; }
.education-card h2 { margin: 0 0 3px; font-size: 24px; }
.education-card p { margin: 0; color: var(--text-muted); font-size: 15px; }
.education-meta { display: flex; flex-direction: column; align-items: end; gap: 8px; }
.education-meta strong { font: 500 13px var(--mono); }
.education-meta span { padding: 4px 9px; color: var(--accent); border: 1px solid rgba(var(--accent-rgb),.4); font: 11px var(--mono); }

.contact-section { position: relative; padding: 120px 28px; overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-raised); }
.contact-section::before { content: "</>"; position: absolute; right: 5%; top: 50%; color: rgba(var(--accent-rgb),.035); font: 700 260px var(--mono); transform: translateY(-50%); }
.contact-inner { position: relative; width: min(850px, 100%); margin: auto; text-align: center; }
.contact-inner h2 { margin: 15px 0 25px; font-size: clamp(43px, 6vw, 75px); line-height: 1.18; letter-spacing: -.065em; }
.contact-inner > p:not(.code-comment) { margin: 0 auto 35px; color: var(--text-muted); font-size: 16px; }
.contact-inner > a { display: inline-flex; align-items: center; gap: 25px; padding: 14px 22px; color: var(--accent); border-bottom: 1px solid var(--accent); font: 500 14px var(--mono); transition: .2s; }
.contact-inner > a:hover { gap: 34px; background: rgba(var(--accent-rgb),.05); }

footer { min-height: 74px; display: flex; align-items: center; justify-content: space-between; width: min(var(--max), calc(100% - 56px)); margin: auto; color: var(--text-faint); font: 11px var(--mono); letter-spacing: .06em; }
.footer-center { display: flex; align-items: center; gap: 8px; }
.footer-center i { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
footer a:hover { color: var(--accent); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 980px) {
  .nav { display: none; }
  .hero { min-height: auto; padding-top: 90px; padding-bottom: 120px; }
  .hero-grid { grid-template-columns: 1fr; }
  .terminal-card { max-width: 650px; transform: none; }
  .skill-grid { grid-template-columns: 1fr 1fr; }
  .experience-layout { grid-template-columns: 240px 1fr; gap: 45px; }
  .education-card { grid-template-columns: 1fr auto; gap: 25px; }
  .education-card .section-index { grid-column: 1 / -1; }
}

@media (max-width: 700px) {
  :root { --topbar: 62px; }
  .topbar { padding: 0 18px; }
  .brand > span:last-child { display: none; }
  .print-button { width: 38px; padding: 0; font-size: 0; }
  .print-button span { margin: 0; font-size: 15px; }
  .section { width: min(100% - 36px, var(--max)); padding: 82px 0; }
  .hero { padding-top: 72px; padding-bottom: 105px; }
  .hero-grid { gap: 52px; }
  .hero h1 { font-size: clamp(52px, 17vw, 76px); }
  .hero h2 { font-size: 15px; }
  .hero-description { font-size: 16px; }
  .contact-row { display: grid; }
  .terminal-body { padding-inline: 10px; font-size: 11px; }
  .line-number { width: 22px; margin-right: 7px; }
  .terminal-command { margin-left: 29px; }
  .section-heading { grid-template-columns: 1fr; gap: 22px; margin-bottom: 45px; }
  .section-heading > p { max-width: 470px; }
  .about-layout { grid-template-columns: 1fr; }
  .metrics-grid article { min-height: 132px; padding: 20px; }
  .metrics-grid strong { font-size: 30px; }
  .skill-grid { grid-template-columns: 1fr; }
  .skill-card { min-height: auto; padding: 28px; }
  .project-card { grid-template-columns: 1fr; padding: 38px 0; }
  .project-number { padding: 0 0 14px; }
  .project-highlights { display: grid; grid-template-columns: 1fr; }
  .project-highlights span { border: 0; border-bottom: 1px solid var(--line); }
  .project-highlights span:last-child { border-bottom: 0; }
  .experience-layout { grid-template-columns: 1fr; gap: 58px; }
  .experience-aside { position: static; }
  .experience-content { margin-left: 5px; }
  .experience-group { padding-left: 30px; }
  .education-card { grid-template-columns: 1fr; padding: 30px; }
  .education-meta { align-items: start; }
  .contact-section { padding: 90px 18px; }
  footer { min-height: 110px; width: calc(100% - 36px); flex-direction: column; justify-content: center; gap: 8px; }
  .footer-center { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  :root { --bg: #fff; --bg-raised: #fff; --panel: #fff; --text: #111; --text-muted: #444; --text-faint: #777; --line: #ddd; --accent: #087f5b; --accent-rgb: 8,127,91; }
  @page { margin: 12mm; size: A4; }
  body { font-size: 10pt; }
  body::before, .noise, .scroll-progress, .topbar, .scroll-hint, .hero-actions, .contact-section, footer, .terminal-command { display: none !important; }
  .section { width: 100%; padding: 28px 0; }
  .hero { min-height: auto; padding-top: 10px; }
  .hero-grid { grid-template-columns: 1fr .8fr; gap: 28px; }
  .hero h1 { font-size: 46px; }
  .hero-description { margin-top: 14px; line-height: 1.6; }
  .contact-row { margin-top: 15px; }
  .terminal-card { box-shadow: none; transform: none; }
  .section-heading { margin-bottom: 24px; padding-bottom: 14px; }
  .section-heading h2 { font-size: 34px; }
  .skill-card { min-height: 220px; break-inside: avoid; }
  .project-card, .experience-group, .education-card { break-inside: avoid; }
  .project-card { padding: 25px 0; }
  details { display: none; }
  .reveal { opacity: 1 !important; transform: none !important; }
}