:root {
  --bg: #0b0d0f;
  --bg-elevated: #111417;
  --panel: #15191d;
  --panel-soft: rgba(21, 25, 29, 0.7);
  --line: rgba(238, 242, 229, 0.13);
  --line-strong: rgba(238, 242, 229, 0.25);
  --text: #edf1e8;
  --muted: #969d94;
  --faint: #626963;
  --acid: #c8ff5e;
  --acid-soft: rgba(200, 255, 94, 0.1);
  --coral: #ff8a68;
  --cyan: #70d9d2;
  --sans: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "SFMono-Regular", "Cascadia Code", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 9%, rgba(200, 255, 94, 0.055), transparent 22rem),
    radial-gradient(circle at 8% 42%, rgba(112, 217, 210, 0.035), transparent 26rem),
    var(--bg);
  font-family: var(--sans);
  line-height: 1.6;
  overflow-x: hidden;
}
body.dialog-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.skip-link {
  position: fixed;
  left: 20px;
  top: -60px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--bg);
  background: var(--acid);
  transition: top 0.2s ease;
}
.skip-link:focus { top: 20px; }
.page-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.45;
  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%);
}
.shell { width: min(1200px, calc(100% - 72px)); margin: 0 auto; }

.site-header {
  min-height: 88px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 20;
}
.brand { display: inline-flex; align-items: center; gap: 8px; width: fit-content; font: 600 15px var(--mono); letter-spacing: -0.03em; }
.brand-prompt { color: var(--acid); }
.brand-cursor { color: var(--acid); animation: blink 1.1s steps(2) infinite; }
.site-nav { display: flex; gap: 30px; align-items: center; font: 500 11px var(--mono); color: var(--muted); letter-spacing: 0.06em; }
.site-nav a { position: relative; transition: color 0.2s ease; }
.site-nav a::before { content: "./"; color: var(--faint); }
.site-nav a:hover { color: var(--text); }
.header-meta { justify-self: end; color: var(--faint); font: 500 10px var(--mono); letter-spacing: 0.12em; }
.menu-toggle { display: none; }

.hero {
  min-height: 720px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.82fr);
  gap: 80px;
  align-items: center;
  padding: 92px 0 110px;
}
.status-line {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--acid);
  font: 500 9px var(--mono);
  letter-spacing: 0.12em;
}
.status-led { width: 7px; height: 7px; border-radius: 50%; background: var(--acid); box-shadow: 0 0 0 5px var(--acid-soft), 0 0 20px rgba(200,255,94,.5); }
.status-time { color: var(--faint); padding-left: 12px; border-left: 1px solid var(--line-strong); }
.hero-overline, .section-index, .project-kind {
  color: var(--faint);
  font: 500 10px var(--mono);
  letter-spacing: 0.14em;
}
.hero-overline { margin: 30px 0 0; }
.hero h1 {
  max-width: 750px;
  margin: 25px 0 28px;
  font-size: clamp(54px, 7vw, 90px);
  line-height: 1.02;
  letter-spacing: -0.075em;
  font-weight: 720;
}
.hero h1 em, .method-intro h2 em { color: var(--acid); font-style: normal; }
.hero-intro { max-width: 650px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.95; }
.hero-intro strong { color: var(--text); font-weight: 650; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }
.button {
  min-width: 182px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 17px;
  border: 1px solid var(--line-strong);
  font: 550 11px var(--mono);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}
.button:hover { transform: translateY(-2px); }
.button b { font-size: 16px; font-weight: 400; }
.button-primary { color: var(--bg); border-color: var(--acid); background: var(--acid); }
.button-secondary:hover { border-color: var(--acid); background: var(--acid-soft); }

.terminal-card {
  position: relative;
  border: 1px solid var(--line-strong);
  background: rgba(13, 16, 18, 0.92);
  box-shadow: 22px 22px 0 rgba(200, 255, 94, 0.035), 0 30px 80px rgba(0,0,0,.3);
  overflow: hidden;
}
.terminal-card::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(transparent 50%, rgba(255,255,255,.012) 50%); background-size: 100% 4px; }
.terminal-bar { height: 45px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 14px; color: var(--faint); border-bottom: 1px solid var(--line); font: 500 9px var(--mono); }
.terminal-bar > span:last-child { justify-self: end; color: var(--acid); }
.terminal-dots { display: flex; gap: 6px; }
.terminal-dots i { display: block; width: 6px; height: 6px; border-radius: 50%; background: var(--faint); }
.terminal-dots i:nth-child(2) { opacity: 0.6; }
.terminal-dots i:nth-child(3) { opacity: 0.3; }
.terminal-body { min-height: 390px; padding: 28px 28px 34px; font: 500 11px/1.8 var(--mono); }
.terminal-body > p { margin: 0 0 16px; color: var(--muted); }
.prompt { color: var(--acid); margin-right: 10px; }
.terminal-output { display: grid; grid-template-columns: 82px 1fr; gap: 8px 14px; padding: 0 0 26px 24px; color: var(--faint); }
.terminal-output b { color: var(--text); font-weight: 500; }
.terminal-output b.online { color: var(--acid); }
.terminal-output b.online::before { content: "● "; font-size: 8px; }
.stack-cloud { display: flex; flex-wrap: wrap; gap: 7px; padding: 0 0 30px 24px; }
.stack-cloud span { padding: 5px 8px; border: 1px solid var(--line); color: var(--muted); font-size: 9px; }
.terminal-last { margin-bottom: 0 !important; }
.terminal-last i { display: inline-block; width: 7px; height: 14px; margin-left: 5px; vertical-align: -2px; background: var(--acid); animation: blink 1s steps(2) infinite; }
.typing { color: var(--text); }
.terminal-trace { height: 54px; display: grid; grid-template-columns: repeat(6, 1fr); align-items: end; gap: 5px; padding: 0 20px; border-top: 1px solid var(--line); opacity: 0.7; }
.terminal-trace span { display: block; border-top: 1px solid var(--acid); background: linear-gradient(to top, var(--acid-soft), transparent); }
.terminal-trace span:nth-child(1) { height: 18px; }.terminal-trace span:nth-child(2) { height: 30px; }.terminal-trace span:nth-child(3) { height: 22px; }.terminal-trace span:nth-child(4) { height: 40px; }.terminal-trace span:nth-child(5) { height: 28px; }.terminal-trace span:nth-child(6) { height: 48px; }
@keyframes blink { 50% { opacity: 0; } }

.signal-strip { overflow: hidden; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--acid); color: var(--bg); }
.signal-track { width: max-content; display: flex; gap: 30px; align-items: center; padding: 11px 0; font: 700 10px var(--mono); letter-spacing: 0.16em; animation: marquee 26s linear infinite; }
.signal-track i { font-style: normal; font-size: 15px; }
@keyframes marquee { to { transform: translateX(-50%); } }

.section { padding-top: 150px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; padding-bottom: 24px; border-bottom: 1px solid var(--line-strong); }
.section-index { margin: 0 0 16px; color: var(--acid); }
.section-head h2, .method-intro h2, .about-copy h2, .closing h2, .entry-dialog h2 {
  margin: 0;
  font-size: clamp(37px, 5vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.06em;
}
.section-note { margin: 0; color: var(--faint); font: 500 10px var(--mono); letter-spacing: 0.08em; }

.worklog-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 24px 0 12px; }
.filter-list { display: flex; flex-wrap: wrap; gap: 8px; }
.filter-button { padding: 7px 10px; color: var(--muted); border: 1px solid var(--line); background: transparent; cursor: pointer; font: 500 9px var(--mono); transition: color .2s ease, border-color .2s ease, background .2s ease; }
.filter-button:hover, .filter-button.is-active { color: var(--bg); border-color: var(--acid); background: var(--acid); }
.log-count { flex: 0 0 auto; color: var(--faint); font: 500 9px var(--mono); letter-spacing: 0.1em; }
.log-list { border-top: 1px solid var(--line); }
.log-entry { display: grid; grid-template-columns: 140px 1fr 120px; gap: 32px; align-items: start; padding: 32px 0; border-bottom: 1px solid var(--line); transition: background .25s ease, padding .25s ease; }
.log-entry:hover { padding-left: 18px; padding-right: 18px; background: linear-gradient(90deg, var(--acid-soft), transparent 65%); }
.log-date { display: flex; flex-direction: column; gap: 12px; color: var(--muted); font: 500 10px var(--mono); }
.log-date b { color: var(--faint); font-size: 34px; line-height: 1; letter-spacing: -0.08em; }
.log-meta { display: flex; gap: 18px; color: var(--acid); font: 500 9px var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.log-meta span + span { color: var(--faint); }
.log-main h3 { max-width: 760px; margin: 13px 0 10px; font-size: clamp(22px, 3vw, 34px); line-height: 1.25; letter-spacing: -0.045em; }
.log-main > p { max-width: 760px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; }
.log-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.log-tags span, .dialog-tags span { color: var(--faint); font: 500 8px var(--mono); letter-spacing: .05em; }
.log-tags span::before, .dialog-tags span::before { content: "#"; color: var(--coral); }
.log-open { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 9px 0 9px 12px; color: var(--muted); border: 0; border-left: 1px solid var(--line); background: transparent; cursor: pointer; font: 500 8px var(--mono); letter-spacing: .1em; transition: color .2s ease, border-color .2s ease; }
.log-open b { color: var(--acid); font-size: 17px; font-weight: 400; }
.log-open:hover { color: var(--text); border-color: var(--acid); }

.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; padding-top: 26px; }
.project-card { min-height: 430px; display: flex; flex-direction: column; padding: 26px; border: 1px solid var(--line); background: rgba(17,20,23,.72); position: relative; overflow: hidden; transition: transform .25s ease, border-color .25s ease; }
.project-card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.project-featured { grid-row: span 2; min-height: 875px; }
.project-topline { display: flex; justify-content: space-between; color: var(--faint); font: 500 8px var(--mono); letter-spacing: .12em; }
.live-dot { color: var(--acid); }.live-dot::before { content: "● "; }
.radar-preview { min-height: 425px; flex: 1; margin: 34px 0; position: relative; overflow: hidden; border: 1px solid var(--line); background: radial-gradient(circle at 50% 50%, rgba(200,255,94,.12), transparent 38%), #0c0f11; }
.radar-preview::before, .radar-preview::after { content: ""; position: absolute; left: 50%; top: 50%; border: 1px solid rgba(200,255,94,.22); border-radius: 50%; transform: translate(-50%,-50%); }
.radar-preview::before { width: 78%; aspect-ratio: 1; }.radar-preview::after { width: 42%; aspect-ratio: 1; }
.radar-sweep { position: absolute; left: 50%; top: 50%; width: 44%; height: 1px; transform-origin: 0 50%; background: linear-gradient(90deg, var(--acid), transparent); box-shadow: 0 0 18px var(--acid); animation: sweep 5s linear infinite; }
@keyframes sweep { to { transform: rotate(360deg); } }
.radar-point { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 6px rgba(255,138,104,.1), 0 0 18px var(--coral); }
.point-a { left: 31%; top: 28%; }.point-b { left: 68%; top: 43%; background: var(--acid); box-shadow: 0 0 0 6px var(--acid-soft), 0 0 18px var(--acid); }.point-c { left: 45%; top: 70%; }
.radar-label { position: absolute; left: 16px; bottom: 14px; color: var(--faint); font: 500 8px var(--mono); letter-spacing: .1em; }
.project-symbol { flex: 1; display: grid; place-items: center; min-height: 150px; color: var(--acid); font: 700 clamp(65px, 8vw, 110px) var(--mono); letter-spacing: -0.1em; }
.project-symbol span { color: var(--faint); font-size: .25em; vertical-align: top; letter-spacing: 0; }
.symbol-ai { color: var(--text); }.symbol-ai span { color: var(--coral); font-size: .5em; }
.project-copy { border-top: 1px solid var(--line); padding-top: 22px; }
.project-kind { margin: 0; color: var(--cyan); font-size: 8px; }
.project-copy h3 { margin: 13px 0 9px; font-size: 31px; line-height: 1.1; letter-spacing: -0.05em; }
.project-copy > p:not(.project-kind) { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.project-copy a, .project-status { display: inline-flex; margin-top: 24px; color: var(--acid); font: 500 9px var(--mono); letter-spacing: .08em; }
.project-copy a { gap: 12px; border-bottom: 1px solid rgba(200,255,94,.35); padding-bottom: 4px; }
.project-status { color: var(--faint); }

.method-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 80px; }
.method-intro { position: sticky; top: 40px; align-self: start; }
.method-intro > p:last-child { max-width: 430px; margin: 24px 0 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.method-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.method-card { min-height: 280px; display: flex; flex-direction: column; padding: 24px; border: 1px solid var(--line); background: var(--panel-soft); }
.method-card > span { color: var(--coral); font: 500 9px var(--mono); }
.method-card h3 { margin: 45px 0 10px; font: 600 34px var(--mono); letter-spacing: -0.06em; }
.method-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.method-card code { margin-top: auto; color: var(--acid); font: 500 10px var(--mono); }
.method-card code::before { content: "❯ "; }

.about-section { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; padding-bottom: 150px; }
.about-copy h2 { max-width: 540px; }
.about-detail { padding-top: 36px; }
.about-lead { max-width: 540px; margin: 0; color: var(--text); font-size: 19px; line-height: 1.85; }
.about-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 60px; padding-top: 20px; border-top: 1px solid var(--line); }
.about-columns span { color: var(--acid); font: 500 8px var(--mono); letter-spacing: .12em; }
.about-columns p { margin: 13px 0 0; color: var(--muted); font: 500 10px/1.9 var(--mono); }

.closing { min-height: 390px; display: flex; align-items: center; justify-content: space-between; gap: 60px; padding-top: 70px; padding-bottom: 70px; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.closing h2 { max-width: 880px; margin-top: 22px; font-size: clamp(34px, 5vw, 60px); }
.closing-status { color: var(--acid); font: 500 9px var(--mono); letter-spacing: .12em; }
.closing-status i { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: var(--acid); }
.closing > a { flex: 0 0 auto; width: 110px; height: 110px; display: grid; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--muted); font: 500 9px var(--mono); transition: color .2s ease, border-color .2s ease, transform .2s ease; }
.closing > a span { display: block; color: var(--acid); font-size: 16px; }
.closing > a:hover { color: var(--text); border-color: var(--acid); transform: rotate(6deg); }
.site-footer { min-height: 96px; display: flex; align-items: center; justify-content: space-between; color: var(--faint); font: 500 9px var(--mono); letter-spacing: .1em; }
.site-footer b { color: var(--acid); }.site-footer a { color: var(--muted); }

.entry-dialog { width: min(760px, calc(100% - 32px)); max-height: min(88vh, 860px); padding: 0; color: var(--text); border: 1px solid var(--line-strong); background: #111417; box-shadow: 0 30px 100px rgba(0,0,0,.65); }
.entry-dialog::backdrop { background: rgba(3,5,6,.82); backdrop-filter: blur(6px); }
.entry-dialog > div { padding: 56px clamp(24px, 6vw, 64px) 60px; }
.dialog-close { position: sticky; z-index: 2; top: 16px; float: right; width: 38px; height: 38px; margin: 16px 16px 0 0; color: var(--muted); border: 1px solid var(--line); border-radius: 50%; background: var(--bg); cursor: pointer; font: 300 23px var(--sans); }
.dialog-close:hover { color: var(--text); border-color: var(--acid); }
.dialog-meta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; color: var(--acid); font: 500 9px var(--mono); letter-spacing: .1em; }
.dialog-meta span + span { padding-left: 14px; border-left: 1px solid var(--line-strong); }
.entry-dialog h2 { font-size: clamp(34px, 6vw, 56px); }
.dialog-summary { margin: 28px 0 38px; padding-left: 20px; color: var(--text); border-left: 2px solid var(--acid); font-size: 16px; line-height: 1.9; }
.dialog-body p { color: var(--muted); font-size: 14px; line-height: 2; }
.dialog-outcome { margin-top: 34px; padding: 20px; border: 1px solid var(--line); background: var(--acid-soft); }
.dialog-outcome span { color: var(--acid); font: 500 8px var(--mono); letter-spacing: .12em; }
.dialog-outcome p { margin: 8px 0 0; font-size: 13px; line-height: 1.8; }
.dialog-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-delay { transition-delay: .12s; }.reveal-delay-2 { transition-delay: .24s; }
.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; }

@media (max-width: 960px) {
  .shell { width: min(100% - 44px, 760px); }
  .site-header { grid-template-columns: 1fr auto; min-height: 74px; }
  .header-meta { display: none; }
  .site-nav { position: absolute; right: 0; top: 64px; display: none; flex-direction: column; align-items: stretch; gap: 0; min-width: 200px; padding: 8px; border: 1px solid var(--line-strong); background: var(--bg-elevated); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px; }
  .menu-toggle { display: flex; flex-direction: column; gap: 6px; padding: 10px; color: var(--text); border: 0; background: transparent; }
  .menu-toggle > span:not(.sr-only) { width: 22px; height: 1px; background: currentColor; }
  .hero { min-height: 0; grid-template-columns: 1fr; gap: 64px; padding: 80px 0 90px; }
  .terminal-card { max-width: 600px; }
  .section { padding-top: 110px; }
  .log-entry { grid-template-columns: 110px 1fr; }
  .log-open { grid-column: 2; width: 120px; }
  .project-featured { min-height: 760px; }
  .method-section { grid-template-columns: 1fr; gap: 50px; }
  .method-intro { position: static; }
  .about-section { grid-template-columns: 1fr; gap: 45px; }
  .about-detail { padding-top: 0; }
}

@media (max-width: 680px) {
  .shell { width: calc(100% - 32px); }
  .page-grid { background-size: 48px 48px; }
  .status-line { flex-wrap: wrap; }
  .status-time { width: 100%; margin-left: 17px; padding: 0; border: 0; }
  .hero { padding-top: 58px; }
  .hero h1 { font-size: clamp(46px, 14vw, 64px); }
  .hero-intro { font-size: 14px; }
  .button { width: 100%; }
  .terminal-body { padding: 24px 18px 28px; font-size: 10px; }
  .terminal-output { grid-template-columns: 68px 1fr; padding-left: 12px; }
  .stack-cloud { padding-left: 12px; }
  .section-head { display: block; }
  .section-note { margin-top: 16px; }
  .worklog-toolbar { align-items: start; }
  .log-entry { grid-template-columns: 1fr; gap: 20px; padding: 28px 0; }
  .log-entry:hover { padding-left: 10px; padding-right: 10px; }
  .log-date { flex-direction: row; justify-content: space-between; align-items: center; }
  .log-date b { font-size: 24px; }
  .log-open { grid-column: auto; width: 120px; padding-left: 0; border-left: 0; border-bottom: 1px solid var(--line); }
  .project-grid { grid-template-columns: 1fr; }
  .project-featured { grid-row: auto; min-height: 680px; }
  .radar-preview { min-height: 340px; }
  .method-grid { grid-template-columns: 1fr; }
  .method-card { min-height: 240px; }
  .about-columns { grid-template-columns: 1fr; gap: 20px; }
  .closing { display: block; min-height: 0; }
  .closing > a { margin-top: 40px; width: 86px; height: 86px; }
  .site-footer { flex-wrap: wrap; gap: 12px; padding: 24px 0; }
  .site-footer span:nth-child(2) { order: 3; width: 100%; }
}

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