*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0}
ul[class],ol[class]{list-style:none}
img,svg,video{max-width:100%;height:auto;display:block}
button{font:inherit;color:inherit}
a{color:inherit;text-decoration-color:rgba(63,224,255,.5);text-underline-offset:.22em}

:root{
  --ink:#07111F;
  --panel:#0E1B2E;
  --deck:#13263D;
  --cyan:#3FE0FF;
  --cyan-bright:#7AF0FF;
  --gold:#F5B84B;
  --gold-soft:#FFD58A;
  --text:#EAF2F8;
  --muted:#A9BCCF;
  --line:#5B6570;
  --moss:#6B8F71;
  --clay:#C4715A;
  --paper:#F2EBDD;
  --paper-ink:#152233;
  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,monospace;
  --wrap:1280px;
  --gutter:clamp(1rem,4vw,3rem);
  --header-h:clamp(64px,7vw,80px);
  --radius:6px;
  --panel-border:1px solid rgba(91,101,112,.42);
  --shadow-panel:0 18px 44px rgba(0,0,0,.45);
}

html{background:var(--ink)}
body{
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:clamp(1rem,.95rem + .25vw,1.0625rem);
  line-height:1.85;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.08;letter-spacing:.02em}
h1{font-size:clamp(2.8rem,6vw,5.2rem)}
h2{font-size:clamp(2rem,3.5vw,3.2rem)}
h3{font-size:1.35rem}
::selection{background:rgba(63,224,255,.3);color:#02121C}
:focus-visible{outline:2px solid var(--cyan-bright);outline-offset:3px;border-radius:2px}

/* ---------- utilities ---------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(2.6rem,6vw,5.5rem)}
.mono{font-family:var(--font-mono);letter-spacing:.04em}
.lede{font-size:clamp(1.05rem,1rem + .5vw,1.3rem);line-height:1.8;color:var(--muted);max-width:62ch}
.rule{height:1px;border:0;background:linear-gradient(90deg,rgba(91,101,112,.7),rgba(91,101,112,0));margin-block:clamp(1.4rem,3vw,2.4rem)}
.eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:.9rem;
}
.eyebrow-dot{width:7px;height:7px;background:var(--gold);transform:rotate(45deg);flex:none}
.eyebrow--paper{color:var(--clay)}
.eyebrow--paper .eyebrow-dot{background:var(--gold)}
.tag{
  display:inline-flex;align-items:center;gap:.35rem;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;
  padding:.28rem .6rem;border-radius:2px;border:1px solid currentColor;
}
.tag--cyan{color:var(--cyan-bright);background:rgba(63,224,255,.08)}
.tag--gold{color:var(--gold);background:rgba(245,184,75,.1)}
.tag--moss{color:var(--moss);background:rgba(107,143,113,.14)}
.tag--clay{color:var(--clay);background:rgba(196,113,90,.14)}
.panel{
  background:var(--panel);border:var(--panel-border);border-radius:var(--radius);
  padding:clamp(1.1rem,2.4vw,1.9rem);box-shadow:var(--shadow-panel);
}
.panel-title{font-size:1.15rem;margin-bottom:.5rem;color:var(--text)}
.grid{display:grid;gap:clamp(1rem,2vw,1.75rem)}
.grid--halves{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}
.grid--thirds{grid-template-columns:repeat(auto-fit,minmax(min(100%,250px),1fr))}
.prose{max-width:72ch}
.prose p{margin-bottom:1.2em;color:var(--text)}
.prose h2{margin-block:1.6em .5em;font-size:clamp(1.5rem,2.4vw,2rem)}
.prose h3{margin-block:1.4em .4em;color:var(--cyan-bright)}
.prose ul,.prose ol{margin:0 0 1.2em 1.2em;padding-left:.3rem}
.prose li{margin-bottom:.45em}
.prose a{color:var(--cyan-bright)}
.prose blockquote{
  margin:1.4em 0;padding:.9rem 1.2rem;border-left:3px solid var(--gold);
  background:rgba(19,38,61,.7);color:var(--muted);border-radius:0 var(--radius) var(--radius) 0;
}

/* breadcrumb */
.breadcrumb{margin-block:clamp(1rem,2vw,1.6rem)}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:.15rem;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.1em;list-style:none}
.breadcrumb-item{display:inline-flex;align-items:center;gap:.45rem;color:var(--muted)}
.breadcrumb-link{color:var(--muted);text-decoration:none;border-bottom:1px solid transparent}
.breadcrumb-link:hover{color:var(--cyan-bright);border-bottom-color:var(--cyan)}
.breadcrumb-current{color:var(--text)}
.breadcrumb-sep{color:rgba(91,101,112,.9)}

/* media containers */
.media-figure{margin:0;display:flow-root}
.media-frame{
  position:relative;display:block;overflow:hidden;border-radius:var(--radius);
  border:1px solid rgba(91,101,112,.45);
  aspect-ratio:16/9;
  background:
    radial-gradient(circle at 78% 12%,rgba(63,224,255,.18),transparent 55%),
    radial-gradient(circle at 12% 88%,rgba(245,184,75,.15),transparent 55%),
    linear-gradient(160deg,#0E1B2E,#0A1524 60%,#071120);
}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.7;
  background-image:
    linear-gradient(rgba(63,224,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(63,224,255,.07) 1px,transparent 1px);
  background-size:32px 32px;
}
.media-frame img,.media-frame picture,.media-frame video{width:100%;height:100%;object-fit:cover;display:block;position:relative;z-index:1}
.media-frame--wide{aspect-ratio:21/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--1x1{aspect-ratio:1/1}
.media-caption{
  margin-top:.7rem;font-family:var(--font-mono);font-size:.74rem;letter-spacing:.06em;
  color:var(--muted);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.72rem 1.15rem;border-radius:3px;border:1px solid transparent;
  font-family:var(--font-body);font-weight:700;font-size:.95rem;line-height:1.2;
  text-decoration:none;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-gold{
  background:linear-gradient(135deg,var(--gold-soft),var(--gold) 55%,#D99A2F);
  color:#07111F;
  box-shadow:0 10px 24px rgba(245,184,75,.22),inset 0 1px 0 rgba(255,255,255,.55);
}
.btn-gold:hover{transform:translateY(-1px);box-shadow:0 16px 32px rgba(245,184,75,.32)}
.btn-ghost{
  background:rgba(63,224,255,.06);color:var(--cyan-bright);
  border-color:rgba(63,224,255,.45);
}
.btn-ghost:hover{background:rgba(63,224,255,.16)}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;left:1rem;top:-120px;z-index:300;
  padding:.65rem 1.05rem;border-radius:3px;
  background:var(--gold);color:#07111F;
  font-weight:700;font-size:.9rem;text-decoration:none;
  transition:top .2s ease;
}
.skip-link:focus{top:.9rem}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:linear-gradient(180deg,rgba(7,17,31,.92),rgba(7,17,31,.55) 68%,rgba(7,17,31,0));
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.site-header[data-scrolled="true"]{
  background:var(--panel);
  border-bottom-color:rgba(91,101,112,.5);
  box-shadow:0 14px 34px rgba(0,0,0,.42);
}
.site-header[data-open="true"]{background:var(--panel)}
.header-inner{
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding-inline:var(--gutter);
  min-height:var(--header-h);
  display:flex;align-items:center;gap:clamp(.8rem,2vw,2rem);
}
.brand{display:inline-flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--text);flex:none}
.brand-mark{
  position:relative;width:38px;height:38px;flex:none;
  display:grid;place-items:center;
  border:1px solid rgba(63,224,255,.55);border-radius:2px;
  color:var(--cyan);font-family:var(--font-mono);font-size:.9rem;
  background:radial-gradient(circle at 32% 26%,rgba(63,224,255,.24),transparent 70%);
  transform:rotate(-6deg);
}
.brand-mark::after{
  content:"";position:absolute;right:-2px;bottom:-2px;width:6px;height:6px;
  background:var(--gold);box-shadow:0 0 8px rgba(245,184,75,.85);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-family:var(--font-display);font-weight:800;font-size:1.02rem;letter-spacing:.05em}
.brand-sub{
  font-family:var(--font-mono);font-size:.6rem;letter-spacing:.24em;
  color:rgba(169,188,207,.75);margin-top:.28rem;
}
.primary-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:clamp(.35rem,1.3vw,1.35rem);list-style:none}
.nav-item{position:relative}
.nav-link{
  position:relative;display:inline-flex;align-items:baseline;gap:.36rem;
  padding:.6rem .2rem;text-decoration:none;
  color:var(--muted);font-size:.93rem;font-weight:600;white-space:nowrap;
  transition:color .2s ease;
}
.nav-index{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.08em;color:rgba(169,188,207,.5)}
.nav-label{position:relative}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:.28rem;height:1px;
  background:linear-gradient(90deg,var(--cyan),rgba(63,224,255,0));
  transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--cyan-bright)}
.nav-link[aria-current="page"] .nav-index{color:var(--gold)}
.nav-link[aria-current="page"]::after{
  transform:scaleX(1);
  background:var(--cyan);
  box-shadow:0 0 10px rgba(63,224,255,.8);
}
.nav-drawer-foot{display:none}
.header-tools{display:flex;align-items:center;gap:.55rem;flex:none}
.header-cta{padding:.6rem 1rem;font-size:.86rem;letter-spacing:.02em}
.nav-toggle{
  display:none;position:relative;width:44px;height:44px;padding:0;
  border:1px solid rgba(91,101,112,.6);border-radius:3px;
  background:rgba(14,27,46,.72);cursor:pointer;
}
.nav-toggle-bar{
  position:absolute;left:50%;width:18px;height:1.5px;background:var(--text);
  transform:translateX(-50%);
  transition:transform .24s ease,opacity .18s ease;
}
.nav-toggle-bar:nth-child(1){top:16px}
.nav-toggle-bar:nth-child(2){top:21px}
.nav-toggle-bar:nth-child(3){top:26px}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(1){transform:translateX(-50%) translateY(5px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(2){opacity:0;transform:translateX(-50%) scaleX(.4)}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(3){transform:translateX(-50%) translateY(-5px) rotate(-45deg)}
.nav-scrim{display:none}
.scroll-rail{
  position:absolute;left:0;bottom:0;height:2px;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--cyan-bright) 55%,var(--gold));
  opacity:0;transition:opacity .2s ease;
}
.site-header[data-scrolled="true"] .scroll-rail{opacity:1}

@media (max-width:1023px){
  .header-cta{display:none}
  .nav-toggle{display:block;position:relative;z-index:130}
  .primary-nav{
    position:fixed;top:0;right:0;bottom:0;left:auto;
    width:min(84vw,340px);z-index:120;
    padding:calc(var(--header-h) + 1.2rem) var(--gutter) 2.2rem;
    background:linear-gradient(180deg,var(--panel),var(--ink) 78%);
    border-left:1px solid rgba(91,101,112,.5);
    box-shadow:-24px 0 60px rgba(0,0,0,.55);
    transform:translateX(103%);
    transition:transform .28s cubic-bezier(.35,0,.25,1);
    overflow-y:auto;
    margin-left:0;
  }
  .site-header[data-open="true"] .primary-nav{transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{border-bottom:1px solid rgba(91,101,112,.28)}
  .nav-link{
    width:100%;padding:.95rem .15rem;font-size:1.05rem;
    justify-content:flex-start;gap:.7rem;
  }
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]{color:var(--cyan-bright)}
  .nav-link[aria-current="page"] .nav-label::after{
    content:"";position:absolute;left:0;right:0;bottom:-.35rem;height:1px;background:var(--cyan);
  }
  .nav-drawer-foot{
    display:block;margin-top:1.6rem;padding-top:1.2rem;
    border-top:1px dashed rgba(91,101,112,.5);
  }
  .nav-drawer-cta{width:100%}
  .nav-drawer-note{
    margin-top:.75rem;font-family:var(--font-mono);font-size:.68rem;
    letter-spacing:.12em;color:var(--muted);
  }
  .nav-scrim{
    display:block;position:fixed;inset:0;z-index:110;
    background:rgba(4,9,16,.68);
    opacity:0;pointer-events:none;transition:opacity .28s ease;
  }
  .site-header[data-open="true"] .nav-scrim{opacity:1;pointer-events:auto}
}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  background:linear-gradient(180deg,var(--ink),#05101B 58%,#040B14);
  border-top:1px solid rgba(91,101,112,.35);
  color:var(--text);
}
.footer-archive{
  width:min(var(--wrap),calc(100% - 2 * var(--gutter)));
  margin:clamp(2.4rem,6vw,4.5rem) auto 0;
  padding:clamp(1.4rem,3vw,2.6rem);
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(1.4rem,3vw,3rem);
  color:var(--paper-ink);
  background-color:var(--paper);
  background-image:
    radial-gradient(circle at 88% 8%,rgba(196,113,90,.18),transparent 42%),
    radial-gradient(circle at 6% 92%,rgba(107,143,113,.18),transparent 44%);
  border:1px solid rgba(21,34,51,.28);
  border-radius:3px;
  box-shadow:
    0 1px 0 #E6DCC9,
    0 16px 0 -8px #E9E0CE,
    0 30px 0 -16px #DCD1BB,
    0 34px 70px rgba(0,0,0,.55);
}
.archive-head{display:flex;flex-direction:column;align-items:flex-start}
.archive-title{
  font-size:clamp(1.5rem,2.6vw,2.15rem);
  color:var(--paper-ink);letter-spacing:.01em;line-height:1.15;
}
.archive-desc{margin-top:.8rem;color:rgba(21,34,51,.74);max-width:44ch;font-size:.98rem;line-height:1.8}
.archive-link{
  margin-top:1.2rem;display:inline-flex;align-items:center;gap:.4rem;
  font-weight:700;font-size:.92rem;color:var(--paper-ink);text-decoration:none;
  border-bottom:2px solid var(--gold);padding-bottom:.15rem;
}
.archive-link:hover{color:#8A4A34;border-bottom-color:var(--clay)}
.archive-deck{display:grid;align-content:start}
.archive-card{
  grid-area:1/1;
  padding:1.15rem 1.25rem;
  background:#FBF6EC;
  border:1px solid rgba(21,34,51,.22);
  border-left:3px solid var(--gold);
  border-radius:2px;
  box-shadow:0 8px 20px rgba(21,34,51,.14);
  opacity:0;visibility:hidden;
  transform:translateY(7px) rotate(-.4deg);
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
}
.archive-card[data-active="true"]{opacity:1;visibility:visible;transform:none}
.archive-tag{
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.22em;
  color:var(--clay);text-transform:uppercase;
}
.archive-card-title{
  margin-top:.45rem;font-size:1.18rem;color:var(--paper-ink);letter-spacing:.01em;
}
.archive-card-meta{
  margin-top:.5rem;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;
  color:rgba(21,34,51,.62);
}
.archive-controls{
  grid-area:2/1;display:flex;align-items:center;gap:.85rem;margin-top:1rem;
}
.archive-btn{
  width:40px;height:40px;padding:0;flex:none;
  display:grid;place-items:center;
  border:1px solid rgba(21,34,51,.4);border-radius:2px;
  background:transparent;color:var(--paper-ink);font-size:1rem;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.archive-btn:hover:not(:disabled){background:var(--paper-ink);color:var(--paper);border-color:var(--paper-ink)}
.archive-btn:disabled{opacity:.35;cursor:not-allowed}
.archive-count{
  font-family:var(--font-mono);font-size:.8rem;letter-spacing:.16em;
  color:rgba(21,34,51,.7);
}
.footer-main{
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:clamp(2.2rem,5vw,3.8rem) var(--gutter) clamp(1.6rem,3vw,2.4rem);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr repeat(3,minmax(110px,.8fr)) 1.6fr;
  gap:clamp(1.4rem,3vw,2.6rem);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:.9rem}
.brand--footer .brand-name{font-size:1.08rem}
.footer-tagline{font-size:.92rem;line-height:1.8;color:var(--muted);max-width:34ch}
.footer-code{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.2em;
  color:rgba(169,188,207,.6);text-transform:uppercase;
}
.footer-col{display:flex;flex-direction:column;gap:.75rem;min-width:0}
.footer-col-title{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--gold);font-weight:700;
}
.footer-links{display:flex;flex-direction:column;gap:.5rem;list-style:none;margin:0}
.footer-link{
  display:inline-block;font-size:.93rem;color:var(--muted);text-decoration:none;
  border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;
}
.footer-link:hover{color:var(--cyan-bright);border-bottom-color:rgba(63,224,255,.7)}
.footer-col--contact{gap:.7rem}
.contact-list{display:flex;flex-direction:column;gap:.65rem;list-style:none;margin:0}
.contact-line{display:flex;flex-direction:column;gap:.15rem}
.contact-label{
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.18em;
  color:rgba(169,188,207,.7);text-transform:uppercase;
}
.contact-value{
  font-family:var(--font-mono);font-size:.88rem;letter-spacing:.03em;color:var(--text);
  overflow-wrap:anywhere;
}
.contact-note{
  font-size:.8rem;line-height:1.75;color:rgba(169,188,207,.78);
  padding-left:.75rem;border-left:2px solid rgba(196,113,90,.65);
}
.footer-legal{border-top:1px solid rgba(91,101,112,.32);background:rgba(4,9,16,.55)}
.legal-inner{
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:.95rem var(--gutter) 1.3rem;
  display:flex;flex-wrap:wrap;align-items:center;gap:.5rem 1.4rem;
  font-size:.78rem;color:rgba(169,188,207,.78);
}
.legal-item{display:inline-flex;align-items:center;gap:.5rem}
.legal-item--end{margin-left:auto}
.legal-link{
  color:var(--muted);text-decoration:none;
  border-bottom:1px solid rgba(91,101,112,.6);transition:color .2s ease,border-color .2s ease;
}
.legal-link:hover{color:var(--cyan-bright);border-bottom-color:var(--cyan)}
.legal-sep{color:rgba(91,101,112,.85)}

@media (max-width:1023px){
  .footer-archive{grid-template-columns:1fr;box-shadow:0 1px 0 #E6DCC9,0 12px 0 -8px #E9E0CE,0 24px 0 -16px #DCD1BB,0 28px 50px rgba(0,0,0,.5)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1/-1}
  .footer-col--contact{grid-column:1/-1}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:1fr}
  .legal-item--end{margin-left:0;width:100%}
  .archive-deck{margin-top:.4rem}
}

/* ---------- reveal ---------- */
html.has-reveal [data-reveal]{
  opacity:0;transform:translateY(16px);
  transition:opacity .38s ease,transform .38s ease;
  transition-delay:calc(var(--reveal-i,0) * 70ms);
}
html.has-reveal [data-reveal].is-visible{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.has-reveal [data-reveal]{opacity:1 !important;transform:none !important;transition:none !important}
  .primary-nav,.nav-scrim{transition:none !important}
}