/* ===== 0. Reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{list-style:none;padding:0}
img,svg,video{display:block;max-width:100%}
button,input,textarea,select{font:inherit;color:inherit;background:none;border:0}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
[hidden]{display:none !important}
:target{scroll-margin-top:160px}

/* ===== 1. Tokens ===== */
:root{
  --c-deep:#0B0614;
  --c-plum:#1A0B2E;
  --c-temple:#2D1B4E;
  --c-gold:#D4AF37;
  --c-gold-bright:#F5D76E;
  --c-cyan:#00E5FF;
  --c-magenta:#FF2E9A;
  --c-mist:#B8A9C9;
  --c-ivory:#F8F4E9;
  --c-emerald:#3EE6A8;
  --line:rgba(212,175,55,.28);
  --line-soft:rgba(184,169,201,.18);
  --glass:rgba(45,27,78,.62);
  --shadow-hard:10px 10px 0 rgba(4,2,10,.7);
  --shadow-soft:0 18px 44px rgba(0,0,0,.5);
  --font-display:"Noto Serif SC","Source Han Serif SC","Songti SC",STSong,serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --rail-w:70px;
  --wrap:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ===== 2. Base ===== */
body{
  min-height:100vh;
  color:var(--c-ivory);
  font-family:var(--font-body);
  font-size:18px;
  font-weight:400;
  line-height:1.85;
  letter-spacing:.02em;
  background:
    radial-gradient(900px 620px at 84% -6%,rgba(255,46,154,.14),transparent 62%),
    radial-gradient(760px 560px at 6% 4%,rgba(0,229,255,.10),transparent 64%),
    linear-gradient(180deg,#0B0614 0%,#1A0B2E 48%,#0B0614 100%);
  background-attachment:fixed;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.3;letter-spacing:.04em;color:var(--c-ivory)}
p{text-wrap:pretty}
:focus-visible{outline:2px solid var(--c-cyan);outline-offset:3px;box-shadow:0 0 0 6px rgba(0,229,255,.16)}
::selection{background:rgba(212,175,55,.35);color:var(--c-ivory)}

@media (min-width:1180px){body{padding-left:var(--rail-w)}}

/* ===== 3. Utilities ===== */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:22px}
.mono{font-family:var(--font-mono);font-size:.72em;letter-spacing:.2em;text-transform:uppercase}
.eyebrow{display:inline-flex;align-items:center;gap:.7em;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.26em;text-transform:uppercase;color:var(--c-gold)}
.eyebrow::after{content:"";width:44px;height:1px;background:linear-gradient(90deg,var(--c-gold),transparent)}
.lede{font-size:clamp(1.02rem,1.4vw,1.2rem);line-height:1.9;color:var(--c-mist);max-width:62ch}
.note{border-left:2px solid var(--c-gold);padding:4px 0 4px 16px;color:var(--c-mist);font-size:.95rem;line-height:1.8}
.divider{height:1px;margin:44px 0;background:linear-gradient(90deg,transparent,rgba(212,175,55,.6),rgba(0,229,255,.4),transparent)}

/* ===== 4. Buttons ===== */
.btn{
  display:inline-flex;align-items:center;gap:.6em;
  padding:.82em 1.5em;
  border:2px solid var(--c-gold);
  background:linear-gradient(135deg,rgba(45,27,78,.92),rgba(11,6,20,.92));
  color:var(--c-gold-bright);
  font-family:var(--font-body);font-size:.95rem;font-weight:500;letter-spacing:.18em;
  box-shadow:6px 6px 0 rgba(4,2,10,.6);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:9px 9px 0 rgba(4,2,10,.72);color:var(--c-ivory);border-color:var(--c-gold-bright)}
.btn:active{transform:translate(0,0);box-shadow:4px 4px 0 rgba(4,2,10,.6)}
.btn--gold{border-color:var(--c-gold);color:var(--c-gold-bright)}
.btn--cyan{border-color:var(--c-cyan);color:var(--c-cyan);box-shadow:6px 6px 0 rgba(0,60,70,.5)}
.btn--cyan:hover{border-color:var(--c-cyan);color:var(--c-ivory)}
.btn--ghost{border-color:var(--line);color:var(--c-mist);box-shadow:none;background:rgba(11,6,20,.5)}
.btn--ghost:hover{border-color:var(--c-gold);color:var(--c-ivory)}

/* ===== 5. Skip link ===== */
.skip-link{
  position:absolute;left:12px;top:-90px;z-index:200;
  padding:12px 22px;border:2px solid var(--c-deep);
  background:var(--c-gold-bright);color:var(--c-deep);
  font-weight:700;letter-spacing:.12em;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px}

/* ===== 6. Left rail ===== */
.rail{display:none}
.rail__top{display:none}
@media (min-width:1180px){
  .rail{
    display:flex;position:fixed;left:0;top:0;bottom:0;width:var(--rail-w);z-index:70;
    flex-direction:column;align-items:center;justify-content:space-between;
    padding:28px 0 78px;
    background:linear-gradient(180deg,#0B0614,#1A0B2E 52%,#0B0614);
    border-right:1px solid var(--line);
  }
  .rail::after{
    content:"";position:absolute;top:0;bottom:0;right:-5px;width:1px;
    background:linear-gradient(180deg,transparent,rgba(0,229,255,.4),rgba(212,175,55,.55),transparent);
  }
  .rail__brand{
    writing-mode:vertical-rl;
    font-family:var(--font-display);font-weight:800;font-size:.95rem;letter-spacing:.44em;
    color:var(--c-gold);text-shadow:0 0 18px rgba(212,175,55,.45);
  }
  .rail__rule{position:relative;flex:1;width:2px;margin:20px 0;background:rgba(184,169,201,.16);overflow:hidden}
  .rail__fill{
    position:absolute;left:0;right:0;top:0;height:var(--progress,0%);
    background:linear-gradient(180deg,var(--c-cyan),var(--c-gold) 55%,var(--c-magenta));
    transition:height .12s linear;
  }
  .rail__sig{color:var(--c-mist);font-size:.62rem}
  .rail__top{
    display:block;position:fixed;left:0;bottom:0;width:var(--rail-w);z-index:75;
    padding:16px 0;
    border-top:1px solid var(--line);
    background:rgba(11,6,20,.94);
    color:var(--c-gold-bright);
    font-family:var(--font-mono);font-size:.66rem;letter-spacing:.22em;
    opacity:0;pointer-events:none;
    transition:opacity .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
  }
  .rail__top[data-visible]{opacity:1;pointer-events:auto}
  .rail__top:hover{background:rgba(45,27,78,.96);color:var(--c-ivory);box-shadow:0 0 26px rgba(212,175,55,.35) inset}
}

/* ===== 7. Masthead ===== */
.site-header{position:sticky;top:0;z-index:80}
.masthead{
  position:relative;
  background:linear-gradient(180deg,rgba(11,6,20,.97),rgba(26,11,46,.9));
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 44px rgba(4,2,10,.6);
  backdrop-filter:blur(10px);
}
.masthead::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,229,255,.45),rgba(212,175,55,.6),rgba(255,46,154,.42),transparent);
}
.masthead__inner{
  display:grid;grid-template-columns:1fr auto;align-items:center;
  gap:10px 20px;padding-block:12px;
}
.masthead__brand{grid-column:1}
.masthead__brand-link{
  display:inline-flex;align-items:center;
  font-family:var(--font-display);font-weight:900;font-size:1.42rem;letter-spacing:.14em;
  color:var(--c-ivory);
}
.masthead__brand-mark{
  margin-left:.7em;padding:.14em .5em;
  color:var(--c-cyan);font-family:var(--font-mono);font-size:.62rem;letter-spacing:.28em;
  border:1px solid rgba(0,229,255,.5);background:rgba(0,229,255,.08);
}
.masthead__brand-link:hover .masthead__brand-mark{border-color:var(--c-gold);color:var(--c-gold-bright);background:rgba(212,175,55,.1)}
.masthead__issue{display:none}
.masthead__line{display:block;font-size:.78rem;letter-spacing:.2em;color:var(--c-mist)}
.utility{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.utility__item{display:flex}
.utility__btn{
  display:inline-flex;align-items:center;
  padding:.4em .8em;
  border:1px solid var(--line-soft);
  color:var(--c-mist);font-size:.8rem;letter-spacing:.1em;
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.utility__btn:hover{color:var(--c-gold-bright);border-color:var(--c-gold);background:rgba(212,175,55,.08)}
.utility__badge{
  display:inline-flex;align-items:center;padding:.4em .8em;
  border:1px dashed rgba(62,230,168,.45);color:var(--c-emerald);
  font-family:var(--font-mono);font-size:.66rem;letter-spacing:.18em;
}
@media (min-width:1180px){.utility__btn[data-to-top]{display:none}}
@media (min-width:960px){
  .masthead__inner{grid-template-columns:auto 1fr auto;padding-block:16px}
  .masthead__issue{
    grid-column:2;display:flex;flex-direction:column;align-items:center;gap:2px;
    text-align:center;justify-self:center;
  }
  .masthead__issue .mono{color:var(--c-gold);font-size:.66rem;letter-spacing:.3em}
  .utility{grid-column:3;justify-self:end;justify-content:flex-end}
}

/* ===== 8. Navtoggle ===== */
.navtoggle{
  grid-column:2;justify-self:end;
  display:inline-flex;align-items:center;
  padding:.55em 1em;
  border:2px solid var(--line);
  background:rgba(45,27,78,.6);
  color:var(--c-gold-bright);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.22em;
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.navtoggle__label{text-transform:uppercase}
.navtoggle:hover{border-color:var(--c-gold)}
.navtoggle[aria-expanded="true"]{border-color:var(--c-cyan);color:var(--c-cyan);background:rgba(0,229,255,.1)}
@media (min-width:960px){.navtoggle{display:none}}

/* ===== 9. Search panel ===== */
.search{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,6,20,.98),rgba(26,11,46,.94));
}
.search__inner{display:grid;gap:14px;padding-block:22px 26px}
.search__label{color:var(--c-cyan);font-size:.68rem;letter-spacing:.26em}
.search__input{
  width:100%;padding:14px 16px;
  border:2px solid var(--line);
  background:rgba(11,6,20,.72);
  color:var(--c-ivory);font-size:1rem;letter-spacing:.06em;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.search__input::placeholder{color:rgba(184,169,201,.7)}
.search__input:focus{outline:none;border-color:var(--c-cyan);box-shadow:0 0 0 3px rgba(0,229,255,.16)}
.search__list{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:8px}
.search__item{min-width:0}
.search__link{
  display:flex;align-items:baseline;gap:.7em;padding:10px 12px;
  border:1px solid var(--line-soft);
  color:var(--c-mist);font-size:.95rem;
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.search__link:hover{border-color:var(--c-gold);color:var(--c-ivory);background:rgba(212,175,55,.08)}
.search__index{color:var(--c-gold);font-size:.66rem}
.search__empty{color:var(--c-mist);font-size:.92rem}

/* ===== 10. Main nav ===== */
.mainnav{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(26,11,46,.78),rgba(11,6,20,.6));
}
.mainnav__list{
  display:flex;flex-wrap:wrap;justify-content:center;gap:clamp(6px,2vw,34px);
  max-width:var(--wrap);margin-inline:auto;padding:10px 22px;
}
.mainnav__link{
  position:relative;display:flex;align-items:baseline;gap:.55em;
  padding:8px 6px;color:var(--c-mist);
  transition:color .25s var(--ease);
}
.mainnav__index{font-size:.66rem;letter-spacing:.18em;color:rgba(212,175,55,.78)}
.mainnav__label{font-size:.98rem;letter-spacing:.08em}
.mainnav__link::after{
  content:"";position:absolute;left:6px;right:6px;bottom:2px;height:2px;
  background:linear-gradient(90deg,var(--c-cyan),var(--c-gold),var(--c-magenta));
  transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.mainnav__link:hover{color:var(--c-ivory)}
.mainnav__link:hover::after{transform:scaleX(1)}
.mainnav__link[aria-current="page"]{color:var(--c-gold-bright)}
.mainnav__link[aria-current="page"] .mainnav__index{color:var(--c-cyan)}
.mainnav__link[aria-current="page"]::after{transform:scaleX(1)}
@keyframes navDrop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
@media (max-width:959px){
  .mainnav{
    position:absolute;left:0;right:0;top:100%;z-index:90;
    display:none;max-height:72vh;overflow-y:auto;
    background:linear-gradient(180deg,rgba(11,6,20,.99),rgba(26,11,46,.99));
    border-top:1px solid var(--line);
    border-bottom:3px solid var(--c-gold);
    box-shadow:0 22px 50px rgba(0,0,0,.68);
  }
  .mainnav[data-open]{display:block;animation:navDrop .28s var(--ease)}
  .mainnav__list{display:block;padding:8px 16px 18px}
  .mainnav__item{display:block}
  .mainnav__link{
    padding:15px 8px;color:var(--c-ivory);
    border-bottom:1px solid var(--line-soft);
  }
  .mainnav__link::after{left:8px;right:8px;bottom:0}
  .mainnav__label{font-size:1.05rem}
}

/* ===== 11. Breadcrumb ===== */
.breadcrumb{padding-top:18px;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;color:var(--c-mist)}
.breadcrumb__list{display:flex;flex-wrap:wrap;align-items:center;gap:.6em}
.breadcrumb__item{display:flex;align-items:center;gap:.6em}
.breadcrumb__item + .breadcrumb__item::before{content:"/";color:rgba(212,175,55,.7)}
.breadcrumb__link{color:var(--c-cyan);transition:color .22s var(--ease)}
.breadcrumb__link:hover{color:var(--c-gold-bright)}
.breadcrumb__item[aria-current="page"]{color:var(--c-ivory)}

/* ===== 12. Grid / cards / tags / index ===== */
.grid{display:grid;gap:26px}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--auto{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
@media (max-width:900px){
  .grid--2,.grid--3{grid-template-columns:1fr}
}
.card{
  position:relative;
  padding:26px 24px 28px;
  border:2px solid var(--line);
  background:linear-gradient(160deg,rgba(45,27,78,.86),rgba(11,6,20,.92));
  box-shadow:var(--shadow-hard);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;width:56px;height:3px;
  background:linear-gradient(90deg,var(--c-gold),var(--c-cyan));
}
.card:hover{transform:translate(-3px,-3px);box-shadow:12px 12px 0 rgba(4,2,10,.75);border-color:rgba(212,175,55,.6)}
.card__eyebrow{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.24em;color:var(--c-cyan);text-transform:uppercase}
.card__title{font-family:var(--font-display);font-size:1.3rem;margin:.5em 0 .45em}
.card__body{color:var(--c-mist);font-size:1rem;line-height:1.85}

.tag{
  display:inline-flex;align-items:center;gap:.45em;
  padding:.3em .8em;
  border:1px solid rgba(0,229,255,.45);
  background:rgba(0,229,255,.06);
  color:var(--c-cyan);
  font-family:var(--font-mono);font-size:.64rem;letter-spacing:.18em;text-transform:uppercase;
}
.tag--gold{border-color:rgba(212,175,55,.55);background:rgba(212,175,55,.08);color:var(--c-gold-bright)}
.tag--magenta{border-color:rgba(255,46,154,.5);background:rgba(255,46,154,.08);color:var(--c-magenta)}
.tag--emerald{border-color:rgba(62,230,168,.5);background:rgba(62,230,168,.08);color:var(--c-emerald)}

.index-list{display:grid;border-top:1px solid var(--line)}
.index-list__item{
  display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:16px;align-items:baseline;
  padding:14px 4px;border-bottom:1px solid var(--line-soft);
  transition:background .25s var(--ease),padding-left .25s var(--ease);
}
.index-list__item:hover{background:linear-gradient(90deg,rgba(212,175,55,.13),transparent);padding-left:14px}
.index-list__num{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;color:var(--c-gold)}
.index-list__label{font-family:var(--font-display);font-size:1.08rem;color:var(--c-ivory)}
.index-list__meta{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;color:var(--c-mist)}

/* ===== 13. Media frames ===== */
.media{
  position:relative;overflow:hidden;
  border:2px solid var(--line);
  background:linear-gradient(150deg,#1A0B2E,#2D1B4E 55%,#0B0614);
  box-shadow:var(--shadow-hard);
}
.media::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(circle at 28% 18%,rgba(0,229,255,.2),transparent 56%),
    radial-gradient(circle at 76% 82%,rgba(255,46,154,.18),transparent 60%);
}
.media::after{
  content:"";position:absolute;inset:10px;z-index:2;pointer-events:none;
  border:1px solid rgba(212,175,55,.38);
}
.media img{position:relative;z-index:0;width:100%;aspect-ratio:16/9;height:auto;object-fit:cover;filter:saturate(1.05) contrast(1.04)}
.media--wide img{aspect-ratio:21/9}
.media--portrait img{aspect-ratio:3/4}
.media--square img{aspect-ratio:1/1}
.media__caption{
  margin-top:10px;font-family:var(--font-mono);font-size:.66rem;letter-spacing:.16em;
  color:var(--c-mist);text-transform:uppercase;
}

/* ===== 14. Section head ===== */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px 22px;justify-content:space-between;margin-bottom:24px}
.section-head__title{font-size:clamp(1.6rem,3vw,2.1rem);letter-spacing:.06em}
.section-head__note{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.2em;color:var(--c-mist)}

/* ===== 15. Reveal ===== */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

/* ===== 16. Footer ===== */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:80px;
  border-top:2px solid var(--line);
  background:linear-gradient(180deg,#0B0614 0%,#1A0B2E 58%,#0B0614 100%);
}
.footer__glow{
  position:absolute;left:-10%;right:-10%;top:-160px;height:340px;pointer-events:none;
  background:radial-gradient(closest-side,rgba(212,175,55,.18),transparent 72%);
}
.footer__inner{
  position:relative;display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
  gap:34px 28px;padding:56px 22px 40px;
}
.footer__brand{min-width:0}
.footer__logo{
  display:flex;align-items:center;gap:.6em;
  font-family:var(--font-display);font-weight:900;font-size:1.35rem;letter-spacing:.14em;
  color:var(--c-ivory);
}
.footer__mark{
  padding:.14em .5em;border:1px solid rgba(0,229,255,.5);
  color:var(--c-cyan);font-size:.62rem;letter-spacing:.28em;
}
.footer__tagline{margin-top:10px;color:var(--c-gold);font-size:.9rem;letter-spacing:.17em}
.footer__note{margin-top:10px;color:var(--c-mist);font-size:.88rem;line-height:1.8}
.footer__col{min-width:0}
.footer__title{
  padding-bottom:10px;margin-bottom:12px;
  border-bottom:1px solid var(--line);
  color:var(--c-gold);font-size:.68rem;letter-spacing:.26em;
}
.footer__list{display:grid;gap:9px}
.footer__link{
  display:inline-block;color:var(--c-mist);font-size:.94rem;
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer__link:hover{color:var(--c-gold-bright);transform:translateX(3px)}
.footer__contact{min-width:0}
.footer__contact-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;justify-content:space-between;
  padding:8px 0;border-bottom:1px dashed var(--line-soft);
}
.footer__contact-text{color:var(--c-ivory);font-size:.92rem;word-break:break-all}
.footer__copy{
  padding:.25em .7em;
  border:1px solid var(--line-soft);
  color:var(--c-mist);font-family:var(--font-mono);font-size:.62rem;letter-spacing:.16em;
  transition:color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.footer__copy:hover{color:var(--c-gold-bright);border-color:var(--c-gold);background:rgba(212,175,55,.1)}
.footer__copy[data-copy-state="done"]{color:var(--c-emerald);border-color:var(--c-emerald);background:rgba(62,230,168,.1)}
.footer__copy[data-copy-state="fail"]{color:var(--c-magenta);border-color:var(--c-magenta);background:rgba(255,46,154,.1)}
.footer__cta{margin-top:18px}
.footer__legal{
  position:relative;display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:space-between;align-items:center;
  padding-block:20px 26px;
  border-top:1px dashed var(--line-soft);
  font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;color:var(--c-mist);
}
.footer__legal-line{margin:0}
.footer__legal-links{display:flex;flex-wrap:wrap;gap:18px;margin:0}
.footer__legal-links .footer__link{font-size:.68rem;letter-spacing:.14em}

/* ===== 17. Motion preferences ===== */
@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}
  .btn:hover,.card:hover,.footer__link:hover{transform:none}
}