/* ===== 1. Reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dt,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit}
table{border-collapse:collapse;width:100%}

/* ===== 2. Tokens ===== */
:root{
  --night:#061A15;
  --block:#0D2A22;
  --block-2:#0A211B;
  --moss:#1E4A3C;
  --lime:#C8FF3F;
  --amber:#FFC53D;
  --whistle:#FF7A33;
  --cyan:#3FE3C8;
  --mist:#E9F5EF;
  --sage:#93AD9F;
  --ink:#03100C;
  --rail-w:248px;
  --gutter:clamp(16px,4vw,48px);
  --maxw:1180px;
  --radius:18px;
  --radius-lg:28px;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Menlo,Consolas,"Courier New",monospace;
  --font-wide:"Archivo Expanded","Archivo","Helvetica Neue",Arial,sans-serif;
  --shadow:0 18px 40px -24px rgba(0,0,0,.85);
}
@media (min-width:1280px){:root{--rail-w:284px;--maxw:1240px}}

/* ===== 3. Base ===== */
body{
  min-height:100vh;
  padding-left:var(--rail-w);
  background-color:var(--night);
  background-image:
    radial-gradient(1100px 620px at 84% -8%,rgba(63,227,200,.11),transparent 62%),
    radial-gradient(880px 520px at 6% 108%,rgba(200,255,63,.075),transparent 60%);
  color:var(--mist);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.6;
  background-image:repeating-linear-gradient(0deg,rgba(233,245,239,.03) 0 1px,transparent 1px 5px);
}
h1,h2,h3,h4{font-weight:700;line-height:1.2;letter-spacing:-.01em;color:var(--mist)}
strong{font-weight:700}
#main-content{display:block;outline:none}
a:focus-visible,button:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.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}
.skip-link{
  position:fixed;left:14px;top:-70px;z-index:200;
  padding:10px 18px;border-radius:0 0 12px 12px;
  background:var(--lime);color:var(--night);
  font-weight:700;font-size:14px;text-decoration:none;
  transition:top .18s ease;
}
.skip-link:focus{top:0}

/* ===== 4. Typography utilities ===== */
.h1{font-size:clamp(28px,5vw,48px);line-height:1.14}
.h2{font-size:clamp(20px,3vw,30px);line-height:1.24}
.lede{font-size:clamp(16px,1.6vw,18px);color:#cfe3d9;max-width:60ch}
.eyebrow{
  display:inline-block;font-family:var(--font-mono);font-size:12px;font-weight:500;
  letter-spacing:.16em;text-transform:uppercase;color:var(--sage);
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.note{font-size:12.5px;line-height:1.75;color:var(--sage)}
.anchor-num{
  display:block;font-family:var(--font-wide);font-weight:700;
  font-size:clamp(56px,12vw,168px);line-height:.86;
  letter-spacing:-.02em;color:var(--lime);font-variant-numeric:tabular-nums;
}

/* ===== 5. Layout ===== */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.layout{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(190px,3fr);
  gap:clamp(20px,3.4vw,48px);align-items:start;
}
.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){
  .layout{grid-template-columns:1fr}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:620px){
  .grid--2,.grid--3{grid-template-columns:1fr}
}
.section{padding:clamp(38px,6.5vw,84px) 0;position:relative}
.section--block{
  background:linear-gradient(160deg,var(--block),var(--block-2));
  border:1px solid var(--moss);border-radius:var(--radius-lg);
  padding:clamp(20px,3vw,42px);
}
[data-section]{scroll-margin-top:96px}
.block-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px;margin-bottom:clamp(18px,2.4vw,30px);
}
.block-head__text{max-width:64ch}
.block-head__text .lede{margin-top:8px}

/* ===== 6. Surfaces & components ===== */
.card{
  position:relative;overflow:hidden;
  background:linear-gradient(165deg,rgba(13,42,34,.96),rgba(10,33,27,.96));
  border:1px solid var(--moss);border-radius:var(--radius);
  padding:clamp(16px,2.2vw,26px);
  transition:border-color .18s ease,transform .18s ease;
}
.card:hover{border-color:rgba(63,227,200,.5)}
.card--overlap{margin-top:clamp(-34px,-3vw,-18px)}
.card__head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:12px}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:999px;
  font-size:15px;font-weight:700;text-decoration:none;
  border:1px solid transparent;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn--primary{background:var(--lime);color:var(--night)}
.btn--primary:hover{background:#d9ff74;transform:translateY(-2px)}
.btn--ghost{border-color:var(--moss);color:var(--mist)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;border:1px solid var(--moss);
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.08em;text-transform:uppercase;color:var(--sage);
  white-space:nowrap;
}
.tag--lime{color:var(--lime);border-color:rgba(200,255,63,.45)}
.tag--amber{color:var(--amber);border-color:rgba(255,197,61,.45)}
.tag--whistle{color:var(--whistle);border-color:rgba(255,122,51,.45)}
.tag--cyan{color:var(--cyan);border-color:rgba(63,227,200,.45)}

.filter-bar{
  display:flex;flex-wrap:wrap;gap:6px;
  padding:7px;border:1px solid var(--moss);border-radius:999px;
  background:rgba(13,42,34,.7);
}
.filter-btn{
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--sage);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.filter-btn:hover{color:var(--mist)}
.filter-btn[aria-pressed="true"]{background:var(--cyan);color:var(--night);transform:translateY(-1px)}
[data-filter-item][hidden]{display:none !important}

.stat{display:flex;flex-direction:column;gap:3px}
.stat__value{
  font-family:var(--font-wide);font-weight:700;font-size:clamp(26px,3.4vw,40px);
  line-height:1;color:var(--amber);font-variant-numeric:tabular-nums;
}
.stat__label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--sage);
}

/* ===== 7. Media boxes (image placeholders) ===== */
.media{
  position:relative;overflow:hidden;
  aspect-ratio:16/9;border-radius:var(--radius);
  border:1px solid var(--moss);
  background:
    radial-gradient(120% 90% at 18% 12%,rgba(200,255,63,.14),transparent 58%),
    linear-gradient(158deg,#0A211B,#123A2D 55%,#1E4A3C);
}
.media--wide{aspect-ratio:21/9}
.media--tall{aspect-ratio:3/4}
.media--square{aspect-ratio:1/1}
.media__img{width:100%;height:100%;object-fit:cover}
.media::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:radial-gradient(rgba(233,245,239,.14) 1px,transparent 1.4px);
  background-size:6px 6px;opacity:.5;mix-blend-mode:screen;
}
.media__caption{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:26px 16px 12px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;color:var(--mist);
  background:linear-gradient(180deg,transparent,rgba(3,16,12,.9));
}
.media__badge{position:absolute;top:12px;left:12px;z-index:2}

/* ===== 8. Vertical round scale ===== */
.scale{position:relative;padding-left:28px}
.scale::before{
  content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;
  background:repeating-linear-gradient(180deg,var(--moss) 0 1px,transparent 1px 16px);
}
.scale__item{position:relative;padding-bottom:22px}
.scale__item::before{
  content:"";position:absolute;left:-28px;top:9px;width:14px;height:1px;background:var(--moss);
  transition:background .18s ease,box-shadow .18s ease,width .18s ease;
}
.scale__item[data-active]::before{
  background:var(--lime);width:20px;box-shadow:0 0 10px rgba(200,255,63,.55);
}

/* ===== 9. Breadcrumb ===== */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  padding:20px 0 4px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--sage);
}
.breadcrumb__link{color:var(--sage);text-decoration:none;border-bottom:1px dotted var(--moss)}
.breadcrumb__link:hover{color:var(--lime);border-bottom-color:var(--lime)}
.breadcrumb__sep{color:var(--moss)}

/* ===== 10. Pulse ===== */
@keyframes pulse-ring{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.78)}}
.pulse{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--whistle);animation:pulse-ring 1.2s ease-in-out infinite;
}
.pulse--cyan{background:var(--cyan)}
.pulse--lime{background:var(--lime)}

/* ===== 11. Reveal ===== */
html.has-js [data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .5s ease,transform .5s ease;
}
html.has-js [data-reveal].is-visible{opacity:1;transform:none}

/* ===== 12. Header / rail ===== */
.rail{
  position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);z-index:60;
  display:flex;flex-direction:column;gap:22px;
  padding:24px 20px 22px;
  background:linear-gradient(180deg,#08211A 0%,#061A15 58%,#03100C 100%);
  border-right:1px solid var(--moss);
  overflow-y:auto;overscroll-behavior:contain;
}
.rail::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;
  background:repeating-linear-gradient(180deg,var(--moss) 0 1px,transparent 1px 18px);
  pointer-events:none;
}
.rail__progress{
  position:absolute;right:0;top:0;width:2px;height:100%;
  background:linear-gradient(180deg,var(--lime),var(--cyan));
  transform:scaleY(var(--p,0));transform-origin:top center;
  transition:transform .12s linear;pointer-events:none;
}
.rail__head{display:flex;flex-direction:column;gap:14px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--mist)}
.brand__mark{
  position:relative;flex:none;width:36px;height:36px;border-radius:11px;
  background:radial-gradient(circle at 30% 26%,var(--lime),#5d9c22 72%);
  box-shadow:0 0 0 1px rgba(200,255,63,.35),0 0 22px rgba(200,255,63,.2);
}
.brand__mark::after{
  content:"";position:absolute;inset:11px 8px;border-radius:2px;
  border-left:2px solid #061A15;border-right:2px solid #061A15;
}
.brand__name{display:block;font-size:19px;font-weight:700;letter-spacing:.02em;line-height:1.3}
.brand__tag{
  display:block;font-family:var(--font-mono);font-size:11px;
  letter-spacing:.08em;color:var(--sage);line-height:1.5;
}
.rail__toggle{
  display:none;align-items:center;gap:9px;align-self:flex-start;
  padding:8px 14px;border:1px solid var(--moss);border-radius:999px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--mist);
}
.rail__toggle:hover{border-color:var(--cyan)}
.rail__bars{
  position:relative;display:block;width:16px;height:2px;background:var(--lime);
  transition:background .18s ease;
}
.rail__bars::before,.rail__bars::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--lime);
  transition:transform .18s ease,top .18s ease;
}
.rail__bars::before{top:-5px}
.rail__bars::after{top:5px}
.rail[data-open] .rail__bars{background:transparent}
.rail[data-open] .rail__bars::before{top:0;transform:rotate(45deg)}
.rail[data-open] .rail__bars::after{top:0;transform:rotate(-45deg)}

.rail__nav{display:flex;flex-direction:column;gap:16px}
.rail__nav-title{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--moss);
}
.rail__list{display:flex;flex-direction:column;border-left:1px solid var(--moss)}
.rail__item{display:block}
.rail__link{
  display:grid;grid-template-columns:14px minmax(0,1fr) auto;align-items:center;gap:10px;
  padding:11px 10px;margin-left:-1px;text-decoration:none;
  font-size:15px;font-weight:500;color:var(--sage);
  border-left:2px solid transparent;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.rail__link:hover{color:var(--mist);background:rgba(30,74,60,.4)}
.rail__tick{
  display:block;width:10px;height:2px;background:currentColor;opacity:.5;
  transition:width .18s ease,background .18s ease,opacity .18s ease;
}
.rail__link:hover .rail__tick{width:16px;opacity:.9}
.rail__label{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rail__code{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;
  color:var(--moss);font-variant-numeric:tabular-nums;
}
.rail__link[aria-current="page"]{
  color:var(--lime);background:rgba(200,255,63,.1);
  border-left-color:var(--lime);font-weight:700;
}
.rail__link[aria-current="page"] .rail__tick{
  width:18px;opacity:1;background:var(--lime);
  box-shadow:0 0 10px rgba(200,255,63,.7);
}
.rail__link[aria-current="page"] .rail__code{color:rgba(200,255,63,.6)}

.rail__seasons{
  display:flex;flex-direction:column;gap:7px;
  padding:14px;border:1px solid var(--moss);border-radius:14px;
  background:rgba(10,33,27,.7);
}
.rail__seasons-title{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--moss);
}
.rail__seasons-value{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.06em;color:var(--amber);
}
.rail__seasons-row{display:flex;flex-wrap:wrap;gap:6px}
.season-btn{
  display:flex;flex-direction:column;align-items:center;gap:1px;
  min-width:42px;padding:6px 5px;border:1px solid var(--moss);border-radius:10px;
  font-family:var(--font-mono);color:var(--sage);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.season-btn:hover{border-color:var(--cyan);color:var(--mist)}
.season-btn__num{font-size:13px;font-weight:600;line-height:1.2}
.season-btn__sub{font-size:9px;letter-spacing:.06em;opacity:.75;line-height:1.4}
.season-btn[aria-pressed="true"]{
  border-color:var(--lime);color:var(--lime);background:rgba(200,255,63,.1);
}

.rail__foot{
  margin-top:auto;display:flex;flex-direction:column;gap:10px;
  padding-top:18px;border-top:1px solid var(--moss);
}
.rail__hint{font-size:12px;color:var(--sage)}
.rail__device{font-family:var(--font-mono);color:var(--cyan);letter-spacing:.06em}
.rail__cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 16px;border-radius:999px;
  background:var(--lime);color:var(--night);
  font-size:14px;font-weight:700;text-decoration:none;
  transition:transform .18s ease,background .18s ease;
}
.rail__cta:hover{background:#d9ff74;transform:translateY(-2px)}

/* ===== 13. Footer ===== */
.foot{
  position:relative;margin-top:clamp(40px,6vw,84px);
  background:var(--ink);border-top:1px solid var(--moss);color:var(--mist);
}
.foot::before{
  content:"";display:block;height:4px;
  background:repeating-linear-gradient(90deg,var(--lime) 0 26px,var(--moss) 26px 28px,transparent 28px 44px);
  opacity:.85;
}
.foot__inner{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter)}
.foot__grid{
  display:grid;
  grid-template-columns:minmax(220px,1.6fr) repeat(3,minmax(140px,1fr));
  gap:clamp(22px,3vw,42px);
  padding:clamp(34px,5vw,62px) 0 clamp(22px,3vw,34px);
}
.foot__logo{font-size:22px;font-weight:700;letter-spacing:.02em}
.foot__tagline{
  margin-top:6px;font-family:var(--font-mono);font-size:11.5px;
  letter-spacing:.1em;color:var(--sage);
}
.foot__data{
  margin-top:14px;font-size:13.5px;line-height:1.8;color:#b8cec3;max-width:34ch;
}
.foot__col{display:flex;flex-direction:column;gap:12px}
.foot__title{
  font-family:var(--font-mono);font-size:11px;font-weight:500;
  letter-spacing:.18em;text-transform:uppercase;color:var(--moss);
}
.foot__links{display:flex;flex-direction:column;gap:9px}
.foot__link{
  font-size:14.5px;color:#c6d9cf;text-decoration:none;
  border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease;
}
.foot__link:hover{color:var(--lime);border-bottom-color:var(--lime)}
.legend{display:flex;flex-direction:column;gap:9px}
.legend__item{display:flex;align-items:center;gap:9px;font-size:14.5px;color:#c6d9cf}
.legend__swatch{
  flex:none;width:11px;height:11px;border-radius:3px;background:var(--sage);
}
.legend__swatch--lime{background:var(--lime);box-shadow:0 0 10px rgba(200,255,63,.4)}
.legend__swatch--cyan{background:var(--cyan);box-shadow:0 0 10px rgba(63,227,200,.35)}
.legend__swatch--amber{background:var(--amber)}
.legend__swatch--whistle{background:var(--whistle)}
.foot__legal{
  display:grid;gap:9px;
  padding:22px 0 36px;border-top:1px solid var(--moss);
}
.foot__copyright{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--sage)}
.foot__contact{font-size:13.5px;line-height:1.85;color:#c6d9cf}
.foot__note{font-size:12.5px;line-height:1.8;color:var(--sage);max-width:78ch}

/* ===== 14. Responsive: rail becomes top bar + drawer ===== */
@media (max-width:1023px){
  body{padding-left:0}
  .rail{
    position:sticky;top:0;width:auto;height:auto;bottom:auto;left:auto;
    gap:0;padding:10px 14px 12px;
    border-right:0;border-bottom:1px solid var(--moss);
    overflow:visible;
  }
  .rail::before{width:100%;height:4px;top:auto;bottom:0;left:0;
    background:repeating-linear-gradient(90deg,var(--moss) 0 1px,transparent 1px 16px)}
  .rail__progress{
    top:auto;bottom:0;left:0;right:auto;width:100%;height:2px;
    transform:scaleX(var(--p,0));transform-origin:left center;
  }
  .rail__head{flex-direction:row;align-items:center;justify-content:space-between;gap:12px}
  .brand__mark{width:30px;height:30px;border-radius:9px}
  .brand__mark::after{inset:9px 6px}
  .brand__name{font-size:17px}
  .brand__tag{font-size:10px}
  .rail__toggle{display:inline-flex}
  .rail__nav,.rail__foot{display:none}
  .rail[data-open] .rail__nav{
    display:flex;margin-top:14px;padding-top:14px;border-top:1px solid var(--moss);
    max-height:62vh;overflow-y:auto;
  }
  .rail[data-open] .rail__foot{display:flex;margin-top:16px}
  .rail__list{border-left:1px solid var(--moss)}
  .rail__link{padding:12px 10px;font-size:16px}
  .rail__seasons{margin-top:16px}
}
@media (max-width:560px){
  .rail__seasons-row{gap:5px}
  .season-btn{min-width:38px}
}

/* ===== 15. Footer responsive ===== */
@media (max-width:900px){
  .foot__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .foot__grid{grid-template-columns:1fr;gap:26px}
  .foot__data{max-width:none}
}

/* ===== 16. 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;
  }
  html.has-js [data-reveal]{opacity:1;transform:none}
  .rail__progress{transition:none}
  .pulse{animation:none;opacity:1}
}