:root{
  --bg: #0b0f1a;
  --ink: #0f172a;
  --muted: #5b6472;
  --paper: #ffffff;
  --line: rgba(15, 23, 42, .12);

  --max: 1120px;
  --radius: 18px;

  --shadow: 0 12px 34px rgba(2, 6, 23, .12);
  --shadow-lg: 0 20px 65px rgba(2, 6, 23, .22);

  --grad: linear-gradient(135deg, rgba(120, 167, 255, .35), rgba(255, 182, 110, .25));
  --hero-overlay: linear-gradient(180deg, rgba(11, 15, 26, .72), rgba(11, 15, 26, .78));

  --h1: clamp(2.3rem, 3.6vw, 3.4rem);
  --h2: clamp(1.6rem, 2.4vw, 2.2rem);
  --h3: 1.05rem;
  --p: 1.02rem;

  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 22px;
  --space-5: 30px;
  --space-6: 42px;
  --space-7: 64px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.45;
}

img{ max-width: 100%; display:block; }
a{ color: inherit; text-decoration: none; }
a:hover{ text-decoration: underline; }

.container{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.skip-link{
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus{
  left: var(--space-3);
  top: var(--space-3);
  width: auto;
  height: auto;
  padding: var(--space-2) var(--space-3);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  z-index: 9999;
}

/* Header / Nav */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(10px) saturate(160%);
  border-bottom: 1px solid var(--line);
}

.nav{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 14px 0;
}

.brand{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: 12px;
}
.brand__mark{
  width: 30px;
  height: 30px;
  border-radius: 10px;
  background: var(--grad);
  box-shadow: 0 10px 30px rgba(2,6,23,.15);
  border: 1px solid rgba(15,23,42,.10);
}

.nav__toggle{
  display: none;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 700;
}

.nav__links{
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.nav__links a{
  font-size: 14px;
  opacity: .88;
  padding: 8px 10px;
  border-radius: 12px;
}
.nav__links a:hover{
  background: rgba(15,23,42,.06);
  opacity: 1;
  text-decoration: none;
}

.nav__links a[aria-current="page"],
.nav__links a[aria-current="true"]{
  background: rgba(15,23,42,.08);
  opacity: 1;
}

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, .14);
  background: var(--paper);
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 8px 22px rgba(2,6,23,.10);
  text-decoration: none;
}
.btn:hover{ transform: translateY(-1px); text-decoration: none; }
.btn:active{ transform: translateY(0); }

.btn--primary{
  background: var(--bg);
  color: #fff;
  border-color: rgba(255,255,255,.10);
  box-shadow: 0 16px 44px rgba(2,6,23,.25);
}

/* Mobile nav panel */
.nav__panel{
  display: none;
  padding: 0 0 var(--space-3);
}
.nav__panel a{
  display: block;
  padding: 12px 12px;
  border-radius: 14px;
  font-size: 14px;
  opacity: .92;
}
.nav__panel a:hover{
  background: rgba(15,23,42,.06);
  text-decoration: none;
  opacity: 1;
}
.nav__panel .panel-row{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  padding: 10px 0 0;
}

/* Hero */
.hero{
  position: relative;
  overflow: hidden;
  background: radial-gradient(1200px 700px at 20% 10%, rgba(120,167,255,.22), transparent 60%),
              radial-gradient(900px 600px at 85% 25%, rgba(255,182,110,.18), transparent 60%),
              var(--bg);
  color: #fff;
}
.hero__bg{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .35;
  transform: scale(1.02);
}
.hero__overlay{
  position: absolute;
  inset: 0;
  background: var(--hero-overlay);
}
.hero__inner{
  position: relative;
  padding: var(--space-7) 0 calc(var(--space-7) - 10px);
}
.kicker{
  margin: 0 0 var(--space-2);
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: 12px;
  opacity: .86;
}
h1{
  font-size: var(--h1);
  margin: 0 0 var(--space-3);
  line-height: 1.05;
  letter-spacing: -.02em;
}
.hero p{
  max-width: 70ch;
  margin: 0 0 var(--space-4);
  font-size: 16px;
  opacity: .9;
}
.hero__cta{
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* Sections */
.section{
  padding: var(--space-7) 0;
}
.section--alt{
  background: rgba(15,23,42,.02);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
h2{
  font-size: var(--h2);
  margin: 0 0 var(--space-2);
  letter-spacing: -.02em;
}
.section__lead{
  margin: 0 0 var(--space-4);
  color: var(--muted);
  max-width: 78ch;
  font-size: var(--p);
}

.grid{
  display: grid;
  gap: var(--space-3);
}
.grid--2{ grid-template-columns: 1fr 1fr; }
.grid--3{ grid-template-columns: repeat(3, 1fr); }

.card{
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-4);
}
.card h3{
  margin: 0 0 10px;
  font-size: 18px;
}
.card p{
  margin: 0;
  color: var(--muted);
}

.pills{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.pill{
  border: 1px solid var(--line);
  background: rgba(15,23,42,.03);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  color: rgba(91,100,114,.95);
}

/* Stats strip */
.stats{
  margin-top: var(--space-5);
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(4, 1fr);
}
.stat{
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.06);
  border-radius: 16px;
  padding: 14px;
}
.stat strong{
  display: block;
  font-size: 14px;
  letter-spacing: -.01em;
}
.stat span{
  display: block;
  font-size: 12px;
  opacity: .82;
  margin-top: 4px;
}

/* Tiles */
.tile{
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  min-height: 260px;
  background: var(--bg);
}
.tile img{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .72;
  transform: scale(1.02);
}
.tile__overlay{
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,15,26,.20), rgba(11,15,26,.72));
}
.tile__content{
  position: relative;
  color: #fff;
  padding: var(--space-4);
  display: grid;
  gap: 10px;
  align-content: end;
  height: 100%;
}
.tile__content h3{
  margin: 0;
  font-size: 20px;
}
.tile__content p{
  margin: 0;
  opacity: .9;
  max-width: 52ch;
}
.tile__content .link{
  font-weight: 800;
  letter-spacing: .02em;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Snapshot chart (CSS bar chart) */
.snapshot{
  display: grid;
  gap: var(--space-3);
}
.snapshot__meta{
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}
.snapshot__meta strong{
  color: var(--ink);
  font-size: 16px;
}
.barchart{
  position: relative;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  background: rgba(15,23,42,.02);
}
.barchart__grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  align-items: end;
  height: 160px;
  position: relative;
}
.barchart__zero{
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  border-top: 1px dashed rgba(15,23,42,.22);
}
.bar{
  position: relative;
  height: 100%;
  display: grid;
  align-content: end;
  gap: 8px;
}
.bar__stick{
  position: absolute;
  left: 14%;
  right: 14%;
  top: 50%;
  border-radius: 10px;
  background: rgba(15,23,42,.16);
}
.bar--pos .bar__stick{
  height: calc(min(var(--v), 100) * .75%);
  transform: translateY(calc(-1 * (min(var(--v), 100) * .75%)));
  background: rgba(120,167,255,.55);
}
.bar--neg .bar__stick{
  height: calc(min((var(--v) * -1), 100) * .75%);
  transform: translateY(0);
  background: rgba(255,182,110,.55);
}
.bar__label{
  text-align: center;
  font-size: 12px;
  color: rgba(91,100,114,.95);
}
.bar__label strong{
  display: block;
  color: var(--ink);
  font-size: 13px;
}

.smallprint{
  font-size: 12px;
  color: rgba(91,100,114,.95);
}

/* Footer */
.footer{
  border-top: 1px solid var(--line);
  padding: 26px 0;
  color: rgba(91,100,114,.95);
  font-size: 14px;
}

/* Reveal motion */
.reveal{
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .reveal{ transition: none; transform: none; opacity: 1; }
  .btn:hover{ transform: none; }
}

/* Responsive */
@media (max-width: 960px){
  .grid--3{ grid-template-columns: 1fr; }
  .grid--2{ grid-template-columns: 1fr; }
  .stats{ grid-template-columns: 1fr 1fr; }
  .nav__toggle{ display: inline-flex; }
  .nav__links{ display: none; }
  .nav__panel.is-open{ display:block; }
}
@media (max-width: 520px){
  .stats{ grid-template-columns: 1fr; }
  .nav__panel .panel-row{ grid-template-columns: 1fr; }
}