:root{
  --void:#070B1B;
  --panel:#0F1730;
  --orbit:#1C2A55;
  --gold:#F2C14E;
  --cyan:#39E0D0;
  --red:#FF5A5F;
  --warm:#F5F2EA;
  --warm-soft:#D8D5CB;
  --mist:#9AA7C7;
  --moss:#5C6B62;
  --clay:#C98D6B;

  --font-display:"Archivo Narrow","Oswald","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono","JetBrains Mono","SFMono-Regular",Consolas,"Liberation Mono","Courier New",monospace;

  --dur:180ms;
  --ease:cubic-bezier(.22,.7,.24,1);
  --radius:4px;
  --border:2px solid var(--orbit);
  --shadow:8px 8px 0 rgba(0,0,0,.42);
  --shell-max:1280px;
  --shell-pad:clamp(16px,4vw,48px);
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body,h1,h2,h3,h4,h5,h6,p,ul,ol,dl,dd,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}

body{
  min-height:100vh;
  background-color:var(--void);
  background-image:
    radial-gradient(1100px 560px at 84% -10%, rgba(57,224,208,.075), transparent 62%),
    radial-gradient(900px 520px at 4% 14%, rgba(242,193,78,.055), transparent 64%),
    linear-gradient(rgba(154,167,199,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(154,167,199,.035) 1px, transparent 1px);
  background-size:auto,auto,72px 72px,72px 72px;
  background-repeat:no-repeat,no-repeat,repeat,repeat;
  color:var(--warm);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.18;
  letter-spacing:.02em;
  color:var(--warm);
  text-wrap:balance;
}
p{text-wrap:pretty}

::selection{background:var(--gold);color:var(--void)}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:2px;
}

.shell{
  width:100%;
  max-width:var(--shell-max);
  margin-inline:auto;
  padding-inline:var(--shell-pad);
}

.mono{
  font-family:var(--font-mono);
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
}

/* ============ Skip link ============ */
.skip-link{
  position:fixed;
  left:16px;
  top:-72px;
  z-index:120;
  padding:12px 20px;
  background:var(--gold);
  color:var(--void);
  font-family:var(--font-display);
  font-weight:700;
  font-size:15px;
  letter-spacing:.08em;
  border-radius:0 0 var(--radius) var(--radius);
  transition:top var(--dur) var(--ease);
}
.skip-link:focus{top:0}

/* ============ Scroll progress ============ */
.scroll-progress{
  position:absolute;
  left:0;
  right:0;
  bottom:-3px;
  height:3px;
  background:rgba(28,42,85,.55);
  pointer-events:none;
  z-index:5;
}
.scroll-progress__bar{
  display:block;
  height:100%;
  width:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--gold));
  box-shadow:0 0 14px rgba(57,224,208,.5);
}

/* ============ Header ============ */
.site-header{
  position:relative;
  z-index:60;
  background:linear-gradient(180deg,#080D20 0%,#0A1128 100%);
  border-bottom:2px solid var(--orbit);
}

.header-track{
  background:rgba(15,23,48,.62);
  border-bottom:1px dashed rgba(28,42,85,.95);
}
.header-track__in{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px 24px;
  min-height:44px;
  padding-block:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--mist);
}
.track-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--gold);
  letter-spacing:.1em;
}
.track-brand::before{
  content:"";
  flex:none;
  width:7px;
  height:7px;
  border:1.5px solid var(--gold);
  border-radius:50%;
  box-shadow:0 0 0 3px rgba(242,193,78,.14);
}
.quick-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px 20px;
}
.quick-actions a{
  position:relative;
  display:inline-block;
  padding-bottom:2px;
  color:var(--mist);
  transition:color var(--dur) var(--ease);
}
.quick-actions a::after{
  content:"";
  position:absolute;
  left:0;
  right:100%;
  bottom:0;
  height:1px;
  background:var(--cyan);
  transition:right var(--dur) var(--ease);
}
.quick-actions a:hover{color:var(--cyan)}
.quick-actions a:hover::after{right:0}

.header-masthead{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  padding-top:clamp(18px,3vw,32px);
  padding-bottom:clamp(14px,2.2vw,24px);
}

.brand-mark{
  display:inline-flex;
  align-items:center;
  gap:clamp(10px,1.6vw,18px);
  color:var(--warm);
}
.brand-orbit{
  flex:none;
  width:clamp(32px,4.6vw,48px);
  height:clamp(32px,4.6vw,48px);
}
.brand-mark__text{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:7px;
}
.brand-mark__name{
  display:inline-flex;
  align-items:flex-start;
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(24px,4.2vw,42px);
  line-height:1;
  letter-spacing:.1em;
  color:var(--warm);
  transition:color var(--dur) var(--ease);
}
.brand-mark__name em{
  font-style:normal;
  margin-left:.34em;
  padding-top:.28em;
  font-size:.4em;
  letter-spacing:.26em;
  line-height:1;
  color:var(--gold);
}
.brand-mark:hover .brand-mark__name{color:var(--gold)}
.brand-mark__line{
  font-family:var(--font-mono);
  font-size:clamp(10.5px,1.3vw,12px);
  letter-spacing:.2em;
  color:var(--mist);
}
.brand-mark--sm .brand-orbit{width:36px;height:36px}
.brand-mark--sm .brand-mark__name{font-size:24px}

.nav-toggle{
  display:none;
  position:absolute;
  top:16px;
  right:var(--shell-pad);
  align-items:center;
  gap:10px;
  padding:9px 13px;
  border:2px solid var(--orbit);
  border-radius:var(--radius);
  background:var(--panel);
  color:var(--warm);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  z-index:4;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--gold);color:var(--gold)}
.nav-toggle__bars{display:grid;gap:4px;width:18px}
.nav-toggle__bars i{
  display:block;
  height:2px;
  background:currentColor;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.site-nav{
  border-top:2px solid var(--orbit);
  border-bottom:2px solid var(--orbit);
  background:rgba(15,23,48,.55);
}
.nav-list{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  align-items:stretch;
}
.nav-list li{border-left:1px dashed rgba(28,42,85,.9)}
.nav-list li:first-child{border-left:0}
.nav-list a{
  position:relative;
  display:block;
  padding:14px clamp(14px,2.4vw,30px);
  font-family:var(--font-display);
  font-weight:600;
  font-size:16px;
  letter-spacing:.14em;
  color:var(--mist);
  transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav-list a::after{
  content:"";
  position:absolute;
  left:50%;
  right:50%;
  bottom:8px;
  height:2px;
  background:var(--gold);
  transition:left var(--dur) var(--ease),right var(--dur) var(--ease);
}
.nav-list a:hover{color:var(--warm);background:rgba(28,42,85,.5)}
.nav-list a:hover::after{left:14px;right:14px}
.nav-list a[aria-current="page"]{
  color:var(--gold);
  background:rgba(242,193,78,.08);
}
.nav-list a[aria-current="page"]::after{left:14px;right:14px}

/* ============ Footer ============ */
.site-footer{
  position:relative;
  margin-top:clamp(64px,10vw,140px);
  border-top:2px solid var(--orbit);
  background:linear-gradient(180deg,#080D20 0%,#050813 100%);
}
.footer-rail{
  height:16px;
  border-bottom:1px solid var(--orbit);
  background-image:repeating-linear-gradient(90deg, rgba(154,167,199,.42) 0 1px, transparent 1px 56px);
  background-position:0 0;
}
.footer-main{
  display:grid;
  grid-template-columns:minmax(220px,1fr) minmax(0,2.2fr);
  gap:clamp(32px,5vw,80px);
  padding:clamp(36px,5vw,64px) 0;
}
.footer-brand{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.footer-note{
  max-width:34ch;
  font-size:14px;
  line-height:1.75;
  color:var(--mist);
}
.footer-signoff{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  color:var(--gold);
  padding-top:2px;
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3vw,40px);
}
.footer-col__title{
  font-family:var(--font-mono);
  font-weight:500;
  font-size:12px;
  letter-spacing:.2em;
  color:var(--gold);
  padding-bottom:10px;
  margin-bottom:14px;
  border-bottom:1px dashed rgba(28,42,85,.95);
}
.footer-col a,
.footer-plain{
  display:inline-block;
  padding:5px 0;
  font-size:14.5px;
  line-height:1.6;
  color:var(--mist);
  transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.footer-col a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-plain{cursor:default}
.footer-base{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px 28px;
  padding:22px 0 44px;
  border-top:1px solid var(--orbit);
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  line-height:1.7;
  color:var(--mist);
}
.footer-contact{color:var(--mist)}
.footer-legal{color:rgba(154,167,199,.72)}

.to-top{
  position:fixed;
  right:22px;
  bottom:22px;
  z-index:80;
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  border:2px solid var(--gold);
  border-radius:var(--radius);
  background:rgba(15,23,48,.94);
  color:var(--gold);
  font-size:18px;
  line-height:1;
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transform:translateY(6px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease);
}
.to-top[data-visible="true"]{
  opacity:1;
  visibility:visible;
  pointer-events:auto;
  transform:translateY(0);
}
.to-top:hover{background:var(--gold);color:var(--void)}

/* ============ Buttons & tags ============ */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 22px;
  border:2px solid var(--gold);
  border-radius:var(--radius);
  font-family:var(--font-display);
  font-weight:700;
  font-size:15px;
  letter-spacing:.1em;
  color:var(--gold);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn:hover{
  background:var(--gold);
  color:var(--void);
  transform:translate(-2px,-2px);
  box-shadow:4px 4px 0 rgba(242,193,78,.26);
}
.btn--solid{background:var(--gold);color:var(--void)}
.btn--solid:hover{background:var(--cyan);border-color:var(--cyan);box-shadow:4px 4px 0 rgba(57,224,208,.3)}
.btn--ghost{border-color:var(--orbit);color:var(--mist)}
.btn--ghost:hover{
  border-color:var(--cyan);
  background:rgba(57,224,208,.1);
  color:var(--cyan);
  box-shadow:none;
  transform:none;
}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border:1px solid var(--orbit);
  border-radius:2px;
  background:rgba(28,42,85,.35);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  line-height:1.6;
  color:var(--mist);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.tag--gold{border-color:rgba(242,193,78,.5);color:var(--gold);background:rgba(242,193,78,.08)}
.tag--cyan{border-color:rgba(57,224,208,.5);color:var(--cyan);background:rgba(57,224,208,.08)}
.tag--red{border-color:rgba(255,90,95,.55);color:var(--red);background:rgba(255,90,95,.1)}
.tag--clay{border-color:rgba(201,141,107,.55);color:var(--clay);background:rgba(201,141,107,.1)}
.tag.is-active,
.tag:hover{
  background:var(--gold);
  border-color:var(--gold);
  color:var(--void);
}

/* ============ Crumbs ============ */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-top:20px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--mist);
}
.crumbs li{display:inline-flex;align-items:center;gap:8px}
.crumbs li + li::before{content:"/";color:var(--orbit)}
.crumbs a{color:var(--mist);transition:color var(--dur) var(--ease)}
.crumbs a:hover{color:var(--cyan)}
.crumbs [aria-current="page"]{color:var(--gold)}

/* ============ Layout ============ */
.split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(24px,4vw,64px);
  align-items:start;
}
.split--flip{grid-template-columns:7fr 5fr}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}

.band{
  width:100%;
  border-top:2px solid var(--orbit);
  border-bottom:2px solid var(--orbit);
  background:linear-gradient(90deg,rgba(15,23,48,.92),rgba(7,11,27,.94));
  padding:clamp(40px,6vw,80px) 0;
}

.tilt{transform:rotate(-1.5deg)}
.tilt--alt{transform:rotate(1.5deg)}
.offset-x{margin-left:clamp(0px,4vw,72px)}

/* ============ Headings ============ */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--cyan);flex:none}

.section-title{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(24px,3.4vw,32px);
  line-height:1.16;
  letter-spacing:.03em;
  margin:12px 0 14px;
}
.section-title--rule::after{
  content:"";
  display:block;
  width:72px;
  height:3px;
  margin-top:14px;
  background:var(--gold);
}

/* ============ Card ============ */
.card{
  position:relative;
  background:var(--panel);
  border:2px solid var(--orbit);
  border-radius:var(--radius);
  padding:clamp(20px,2.6vw,30px);
  box-shadow:var(--shadow);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.card:hover{
  border-color:var(--gold);
  box-shadow:8px 8px 0 rgba(242,193,78,.14);
  transform:translate(-2px,-2px);
}

/* ============ Media ============ */
.media{
  position:relative;
  display:block;
  width:100%;
  aspect-ratio:16 / 9;
  overflow:hidden;
  border:2px solid var(--orbit);
  border-radius:var(--radius);
  background:
    radial-gradient(120% 90% at 18% 0%, rgba(57,224,208,.16), transparent 62%),
    linear-gradient(160deg,#0B1330,#070B1B);
}
.media img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.88) contrast(1.06) brightness(.92);
}
.media::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:42%;
  background:linear-gradient(transparent,rgba(7,11,27,.86));
  pointer-events:none;
}
.media--wide{aspect-ratio:21 / 9}
.media--tall{aspect-ratio:3 / 4}
.media--square{aspect-ratio:1 / 1}
.media--gold{border-color:rgba(242,193,78,.65)}
.media-caption{
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  line-height:1.7;
  color:var(--mist);
}

/* ============ Prose ============ */
.prose{
  max-width:72ch;
  font-size:16.5px;
  line-height:1.85;
  color:var(--warm-soft);
}
.prose > * + *{margin-top:1.2em}
.prose h2{
  font-size:clamp(22px,2.8vw,28px);
  color:var(--warm);
  margin-top:2em;
  padding-bottom:10px;
  border-bottom:1px dashed rgba(28,42,85,.95);
}
.prose h3{
  font-size:clamp(18px,2.2vw,21px);
  color:var(--gold);
  margin-top:1.6em;
}
.prose ul,.prose ol{padding-left:1.3em}
.prose ul li{list-style:none;position:relative;padding-left:1.1em;margin-top:.5em}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:8px;
  height:2px;
  background:var(--cyan);
}
.prose ol{list-style:decimal}
.prose ol li{margin-top:.5em}
.prose a{
  color:var(--cyan);
  border-bottom:1px solid rgba(57,224,208,.4);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.prose a:hover{border-bottom-color:var(--cyan)}
.prose blockquote{
  padding:16px 22px;
  border-left:3px solid var(--gold);
  background:rgba(15,23,48,.7);
  color:var(--warm);
}
.prose code{
  font-family:var(--font-mono);
  font-size:.92em;
  padding:2px 6px;
  border-radius:2px;
  background:rgba(28,42,85,.65);
  color:var(--cyan);
}
.prose strong{color:var(--warm);font-weight:700}

/* ============ Responsive ============ */
@media (max-width:980px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:900px){
  .split,.split--flip{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:36px}
  .footer-note{max-width:56ch}
}

@media (max-width:860px){
  .nav-toggle{display:inline-flex}
  .header-masthead{padding-top:56px}
  .site-nav{
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    border-top-width:0;
    transition:max-height 240ms var(--ease),visibility 240ms var(--ease);
  }
  .site-nav[data-open]{
    max-height:560px;
    visibility:visible;
  }
  .nav-list{flex-direction:column;align-items:stretch}
  .nav-list li{
    border-left:0;
    border-top:1px dashed rgba(28,42,85,.9);
  }
  .nav-list li:first-child{border-top:0}
  .nav-list a{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:15px 18px;
  }
  .nav-list a::after{display:none}
  .nav-list a[aria-current="page"]{
    border-left:3px solid var(--gold);
    background:rgba(242,193,78,.1);
  }
}

@media (max-width:760px){
  :root{--shadow:5px 5px 0 rgba(0,0,0,.42)}
  .header-track__in{justify-content:center;text-align:center}
  .quick-actions{justify-content:center;gap:6px 16px}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-base{flex-direction:column;padding-bottom:38px}
  .to-top{right:14px;bottom:14px;width:42px;height:42px}
}

@media (max-width:620px){
  .grid--2,.grid--3{grid-template-columns:1fr}
  .brand-mark{flex-direction:column;align-items:center;text-align:center}
  .brand-mark__text{align-items:center}
  .brand-mark__line{letter-spacing:.12em}
}

@media (max-width:420px){
  .footer-nav{grid-template-columns:1fr}
}

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