/* ===== 0. RESET ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px}
body,h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{list-style:none;padding:0}
img,svg,picture{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid #2FF3D0;outline-offset:3px;border-radius:2px}

/* ===== 1. TOKENS ===== */
:root{
  --abyss:#050B1F;
  --deep:#0B1B3A;
  --steel:#12295A;
  --jade:#0E5560;
  --wine:#5C1334;
  --indigo:#2B1C63;
  --cyan:#2FF3D0;
  --lava:#FF6A2B;
  --violet:#9A6BFF;
  --paper:#F1F6FF;
  --mist:#A7B6D6;
  --mint:#A9FFEE;

  --font-display:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --edge:3px solid var(--steel);
  --hard:8px 8px 0 var(--steel);
  --hard-ink:8px 8px 0 rgba(5,11,31,.72);
  --gutter:clamp(16px,4vw,40px);
  --maxw:1280px;
  --rhythm:clamp(24px,6vw,96px);
}

/* ===== 2. BASE ===== */
body{
  background:var(--abyss);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.02em;
  min-height:100vh;
  overflow-x:hidden;
}
@media (min-width:1100px){body{font-size:17px}}
main{display:block}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.12;letter-spacing:-.015em}
h1{font-size:clamp(2.4rem,6vw,5.2rem)}
h2{font-size:clamp(1.6rem,3vw,2.6rem)}
h3{font-size:clamp(1.15rem,1.7vw,1.45rem);font-weight:800}
p{max-width:62ch}
strong{font-weight:800;color:var(--paper)}

.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:var(--rhythm);position:relative}
.section--deep{background:var(--deep)}
.section--jade{background:var(--jade)}
.section--wine{background:var(--wine)}
.section--indigo{background:var(--indigo)}
.page-head{padding-top:clamp(120px,15vw,190px);padding-bottom:clamp(24px,4vw,56px)}
.prose p{color:var(--mist);margin-top:.9em}
.prose p:first-child{margin-top:0}

.edge-slant{clip-path:polygon(0 0,100% 0,100% calc(100% - 36px),calc(100% - 52px) 100%,0 100%)}
.edge-arc{border-radius:64px 64px 0 0}

/* ===== 3. UTILITY ===== */
.mono{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.18em;color:var(--mint)}
.meta{font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;color:var(--mist)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;color:var(--cyan);margin-bottom:16px}
.eyebrow::before{content:"";width:26px;height:3px;background:var(--lava);flex:none}
.text-cyan{color:var(--cyan)}
.text-lava{color:var(--lava)}
.text-mist{color:var(--mist)}
.text-mint{color:var(--mint)}

.glitch{display:inline-block}
.glitch.is-active{animation:glitch-shift .24s steps(1,end) 1}
@keyframes glitch-shift{
  0%{transform:translate(0,0)}
  33%{transform:translate(-2px,1px)}
  66%{transform:translate(2px,-1px)}
  100%{transform:translate(0,0)}
}

/* ===== 4. SKIP LINK ===== */
.skip-link{
  position:absolute;left:50%;top:-120px;transform:translateX(-50%);
  z-index:120;background:var(--cyan);color:var(--abyss);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;
  padding:12px 20px;border:3px solid var(--abyss);
  transition:top .2s ease;
}
.skip-link:focus{top:12px}

/* ===== 5. HEADER ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  padding-block:clamp(12px,1.8vw,22px);
  background:transparent;
  border-bottom:3px solid transparent;
  transition:background-color .3s ease,padding .3s ease,border-color .3s ease;
}
.site-header::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(5,11,31,.88),rgba(5,11,31,0));
  transition:opacity .3s ease;
}
.site-header.is-scrolled{
  background:rgba(11,27,58,.97);
  border-bottom-color:var(--steel);
  padding-block:9px;
}
.site-header.is-scrolled::before{opacity:0}
.site-header__inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;
  gap:clamp(14px,3vw,32px);
}
.site-header__brand{display:flex;flex-direction:column;gap:2px;min-width:0}
.brand-mark{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(1rem,1.6vw,1.2rem);letter-spacing:.02em;color:var(--paper);
  line-height:1.15;white-space:nowrap;
}
.brand-line{font-family:var(--font-mono);font-size:32rem;font-size:11px;letter-spacing:.16em;color:var(--mint);opacity:.88;white-space:nowrap}

.primary-nav{position:relative;z-index:1}
.nav-list{display:flex;align-items:center;gap:clamp(12px,1.8vw,26px)}
.nav-link{
  position:relative;display:inline-block;padding-block:6px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.16em;
  color:var(--mist);transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--paper)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--cyan)}
.nav-link[aria-current="page"]::after{transform:scaleX(1)}

.header-actions{position:relative;z-index:1;display:flex;align-items:center;gap:12px}
.header-cta{padding:10px 16px;font-size:12px;border-width:2px}
.header-cta:hover{transform:none;box-shadow:none;border-color:var(--cyan);color:var(--cyan)}

.nav-toggle{
  display:none;align-items:center;gap:10px;
  border:3px solid var(--steel);background:var(--deep);color:var(--paper);
  padding:9px 12px;cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.nav-toggle__bars{position:relative;width:18px;height:12px;flex:none}
.nav-toggle__bars::before,.nav-toggle__bars::after{
  content:"";position:absolute;left:0;right:0;height:2px;background:var(--cyan);
  transition:transform .22s ease,top .22s ease,bottom .22s ease;
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:5px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{bottom:5px;transform:rotate(-45deg)}

.header-progress{
  position:absolute;left:0;bottom:0;height:3px;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--violet) 55%,var(--lava));
  transition:width .12s linear;
}

@media (max-width:1000px){
  .primary-nav{
    position:absolute;left:0;right:0;top:100%;
    background:rgba(11,27,58,.99);
    border-top:3px solid var(--steel);
    border-bottom:3px solid var(--steel);
    max-height:0;overflow:hidden;
    transition:max-height .3s ease;
  }
  .primary-nav[data-open]{max-height:min(74vh,560px);overflow-y:auto}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:6px var(--gutter) 18px}
  .nav-link{display:block;padding:15px 0;font-size:14px;border-bottom:1px solid rgba(18,41,90,.9)}
  .nav-link::after{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
}

/* ===== 6. FLOAT DOCK ===== */
.float-dock{
  position:fixed;right:clamp(12px,2vw,28px);bottom:clamp(12px,3vw,34px);
  z-index:70;display:flex;flex-direction:column;align-items:flex-end;gap:10px;
}
.dock-btn{
  display:inline-flex;align-items:center;gap:9px;
  background:var(--deep);color:var(--paper);
  border:3px solid var(--steel);box-shadow:8px 8px 0 rgba(5,11,31,.75);
  padding:10px 14px;font-size:13px;letter-spacing:.08em;
  transition:transform .18s ease,border-color .18s ease,color .18s ease;
}
.dock-btn:hover{transform:translate(-2px,-2px);border-color:var(--cyan);color:var(--cyan)}
.dock-btn__icon{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;color:var(--mint)}
.dock-btn--verify{border-color:var(--lava)}
.dock-btn--verify .dock-btn__icon{color:var(--lava)}
.dock-btn__text{white-space:nowrap}
@media (max-width:560px){
  .dock-btn{padding:10px 12px}
  .dock-btn__text{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
}

/* ===== 7. BUTTONS ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;
  padding:14px 22px;border:3px solid var(--steel);
  background:var(--deep);color:var(--paper);cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease,background-color .18s ease;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:var(--hard);border-color:var(--cyan)}
.btn--primary{background:var(--cyan);color:var(--abyss);border-color:var(--cyan)}
.btn--primary:hover{box-shadow:8px 8px 0 var(--steel);border-color:var(--cyan);color:var(--abyss)}
.btn--lava{background:var(--lava);color:#1B0700;border-color:var(--lava)}
.btn--lava:hover{border-color:var(--lava);color:#1B0700}
.btn--ghost{background:transparent}

/* ===== 8. BREADCRUMBS ===== */
.breadcrumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;color:var(--mist);
}
.breadcrumbs li{display:flex;align-items:center;gap:10px}
.breadcrumbs li+li::before{content:"/";color:rgba(167,182,214,.45)}
.breadcrumbs a:hover{color:var(--cyan)}

/* ===== 9. PANELS ===== */
.panel{
  position:relative;background:var(--deep);
  border:3px solid var(--steel);box-shadow:var(--hard);
  padding:clamp(20px,3.5vw,40px);
}
.panel--bare{box-shadow:none}
.panel--jade{background:var(--jade);border-color:rgba(47,243,208,.34)}
.panel--wine{background:var(--wine);border-color:rgba(255,106,43,.34)}
.panel--indigo{background:var(--indigo);border-color:rgba(154,107,255,.42)}

/* ===== 10. FILTER ===== */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px}
.filter-btn{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  padding:9px 15px;border:2px solid var(--steel);background:var(--deep);color:var(--mist);
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.filter-btn:hover{color:var(--paper);border-color:var(--cyan)}
.filter-btn.is-active{background:var(--violet);border-color:var(--violet);color:var(--paper)}
.filter-count{font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--mint);margin-left:auto}
.filter-item[hidden]{display:none!important}

/* ===== 11. MOTION ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ===== 12. LAYOUT HELPERS ===== */
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,2.4vw,32px)}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-12{grid-column:span 12}
@media (max-width:900px){
  .grid-12{grid-template-columns:repeat(4,minmax(0,1fr))}
  [class*="span-"]{grid-column:1/-1}
}
.with-rail{display:grid;grid-template-columns:minmax(0,18%) minmax(0,1fr);gap:clamp(20px,3.5vw,56px);align-items:start}
.index-rail{font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--mist);line-height:2}
.index-rail a:hover{color:var(--cyan)}
@media (max-width:880px){
  .with-rail{grid-template-columns:1fr}
  .index-rail{display:flex;flex-wrap:wrap;gap:8px 18px}
}

/* ===== 13. IMAGE FRAMES ===== */
.img-frame{
  position:relative;overflow:hidden;background:var(--deep);
  border:3px solid var(--steel);box-shadow:var(--hard);
}
.img-frame>img,.img-frame>svg,.img-frame>picture>img{
  width:100%;height:100%;object-fit:cover;
}
.img-frame--wide{aspect-ratio:16/9}
.img-frame--photo{aspect-ratio:4/3}
.img-frame--square{aspect-ratio:1/1}
.img-frame--tall{aspect-ratio:3/4}
.img-frame--arc{border-radius:50% 50% 6px 6px / 34% 34% 6px 6px}
.img-frame--slant{clip-path:polygon(0 0,100% 0,100% calc(100% - 34px),calc(100% - 34px) 100%,0 100%)}
@media (max-width:600px){
  .img-frame--wide,.img-frame--photo{aspect-ratio:3/2}
  .img-frame--tall{aspect-ratio:1/1}
}

/* ===== 14. FOOTER ===== */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:clamp(40px,8vw,120px);
  background:var(--deep);
  border-top:3px solid var(--steel);
}
.site-footer::before{
  content:"";position:absolute;top:-160px;left:-110px;
  width:min(420px,62vw);aspect-ratio:1;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(47,243,208,.18),rgba(47,243,208,0) 70%);
}
.site-footer::after{
  content:"";position:absolute;right:-130px;bottom:-130px;
  width:min(380px,56vw);aspect-ratio:1;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(255,106,43,.16),rgba(255,106,43,0) 70%);
}
.footer-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,2fr);
  gap:clamp(28px,5vw,80px);
  padding-block:clamp(40px,6vw,84px);
}
.footer-brand{display:flex;flex-direction:column;gap:12px}
.footer-brand__mark{
  font-family:var(--font-display);font-weight:900;font-size:clamp(1.2rem,2vw,1.5rem);
  letter-spacing:.02em;color:var(--paper);
}
.footer-brand__line{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.16em;color:var(--mint)}
.footer-brand__note{font-size:14px;line-height:1.9;color:var(--mist);max-width:38ch}
.device-switch{
  display:inline-flex;align-items:center;gap:0;
  border:3px solid var(--steel);background:var(--abyss);
  align-self:flex-start;margin-top:10px;
}
.device-switch__label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;color:var(--mist);padding:0 12px}
.device-switch__btn{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  padding:9px 14px;color:var(--mist);cursor:pointer;
  transition:background-color .18s ease,color .18s ease;
}
.device-switch__btn:hover{color:var(--paper)}
.device-switch__btn.is-active{background:var(--cyan);color:var(--abyss)}
.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.footer-col__title{
  font-family:var(--font-mono);font-size:12px;font-weight:700;
  letter-spacing:.2em;color:var(--mint);margin-bottom:16px;
}
.footer-col__title::after{content:"";display:block;width:28px;height:3px;background:var(--lava);margin-top:10px}
.footer-list{display:flex;flex-direction:column;gap:4px}
.footer-link{
  display:inline-block;font-size:15px;line-height:1.7;padding-block:3px;
  color:var(--mist);transition:color .18s ease;
}
.footer-link:hover{color:var(--cyan)}
.footer-legal{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;
  border-top:3px solid var(--steel);
  padding-block:22px 34px;
}
.footer-legal__line{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:rgba(167,182,214,.84);max-width:none}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr}
  .footer-cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px}
}
@media (max-width:520px){
  .footer-cols{grid-template-columns:1fr}
}

/* ===== 15. REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .reveal{opacity:1;transform:none}
}