:root {
  --ink: #f6f1ff;
  --muted: #c9b8e6;
  --neon: #ff3d8f;
  --cyan: #3ee0ff;
  --gold: #ffd36a;
  --bg: #090614;
  --panel: #140d22;
  --line: rgba(255, 61, 143, .3);
}

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body.abb {
  min-height: 100vh;
  overflow-x: hidden;
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
  background:
    radial-gradient(700px 330px at 10% -10%, rgba(255, 61, 143, .24), transparent 58%),
    radial-gradient(650px 300px at 105% 0%, rgba(62, 224, 255, .15), transparent 54%),
    linear-gradient(180deg, #12091c, var(--bg) 52%);
}

a { color: var(--cyan); text-decoration: none; }
a:hover { color: #fff; }
.abb-glow { display: none; }

.abb-top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: .8rem;
  min-height: 3.1rem;
  padding: .5rem 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 6, 20, .94);
}
.abb-brand {
  display: flex;
  align-items: baseline;
  gap: .45rem;
  color: var(--ink);
}
.abb-mark {
  display: grid;
  width: 1.9rem;
  height: 1.9rem;
  place-items: center;
  border-radius: 50%;
  background: var(--neon);
  color: #fff;
}
.abb-word,
.gts-home h1,
.gts-home h2,
.gts-decade strong {
  font-family: Impact, "Arial Black", sans-serif;
  letter-spacing: .035em;
}
.abb-word { font-size: .95rem; }
.abb-brand em {
  color: var(--cyan);
  font-size: .72rem;
  font-style: normal;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.abb-nav {
  display: flex;
  flex: 1;
  gap: .9rem;
}
.abb-nav a { color: var(--muted); }
.abb-nav a.is-on,
.abb-nav a:hover { color: var(--ink); }
.abb-tools {
  display: flex;
  align-items: center;
  gap: .65rem;
}
.abb-user { color: var(--gold); }
.abb-cta-mini {
  padding: .25rem .65rem;
  border: 1px solid var(--neon);
  border-radius: 999px;
  color: var(--ink);
}
.abb-burger {
  display: none;
  width: 2rem;
  height: 2rem;
  cursor: pointer;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--ink);
}

.abb-main {
  width: min(980px, calc(100% - 1.5rem));
  margin: 0 auto 1.5rem;
}
.abb-flash {
  padding: .7rem 1rem;
  border-radius: 10px;
}
.abb-flash.ok { background: #123326; color: #5dffb0; }
.abb-flash.err { background: #3a1220; color: #ff6b8a; }

.gts-home-hero {
  position: relative;
  padding: clamp(1.8rem, 5vh, 3.5rem) 1rem clamp(1.4rem, 4vh, 2.5rem);
  text-align: center;
}
.gts-home-hero::before {
  position: absolute;
  z-index: -1;
  inset: 8% 15% 0;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 61, 143, .17), transparent 67%);
  content: "";
}
.gts-kicker {
  margin: 0 0 .45rem;
  color: var(--cyan);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .22em;
  text-transform: uppercase;
}
.gts-home h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(3.2rem, 10vw, 6.9rem);
  line-height: .9;
  text-shadow: 0 3px 0 #9f174f, 0 0 26px rgba(255, 61, 143, .42);
}
.gts-hero-hook {
  margin: clamp(1rem, 2.5vh, 1.5rem) auto .7rem;
  font-size: clamp(1.15rem, 2.5vw, 1.65rem);
  font-weight: 700;
  line-height: 1.25;
}
.gts-hero-hook p { margin: .08rem 0; }
.gts-hero-hook p:first-child { color: var(--muted); }
.gts-hero-hook p:last-child { color: var(--gold); }
.gts-challenge {
  margin: 0;
  color: #fff;
  font-size: clamp(.82rem, 1.7vw, 1rem);
  font-weight: 800;
  letter-spacing: .035em;
}
.gts-challenge p { margin: .12rem 0; }
.gts-challenge strong { display: block; margin-top: .35rem; color: var(--cyan); }
.gts-home-actions {
  display: flex;
  justify-content: center;
  gap: .7rem;
  margin-top: 1.25rem;
}
.abb-cta,
.abb-ghost {
  display: inline-flex;
  min-width: 9.5rem;
  min-height: 2.9rem;
  align-items: center;
  justify-content: center;
  padding: .75rem 1.2rem;
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: .06em;
}
.abb-cta {
  background: linear-gradient(180deg, #ff5aa3, var(--neon));
  box-shadow: 0 8px 22px rgba(255, 61, 143, .25);
  color: #fff;
}
.abb-ghost {
  border: 1px solid rgba(62, 224, 255, .55);
  background: rgba(20, 13, 34, .65);
  color: var(--ink);
}
.abb-cta:hover,
.abb-ghost:hover { color: #fff; }

.gts-decade-section {
  padding: clamp(1rem, 2.5vw, 1.6rem);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 22px;
  background: rgba(255, 255, 255, .025);
}
.gts-home h2 {
  margin: 0 0 .85rem;
  color: var(--gold);
  font-size: clamp(1.45rem, 4vw, 2.2rem);
  line-height: 1;
  text-align: center;
}
.gts-decades {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .65rem;
}
.gts-decade {
  display: flex;
  min-width: 0;
  min-height: 4.8rem;
  align-items: center;
  justify-content: space-between;
  gap: .4rem;
  padding: .8rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 12px;
  color: #fff;
}
.gts-decade:hover,
.gts-decade:focus-visible {
  border-color: var(--cyan);
  color: #fff;
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.gts-decade strong { font-size: clamp(1.25rem, 2.6vw, 1.7rem); }
.gts-decade span {
  color: rgba(255, 255, 255, .72);
  font-size: .62rem;
  font-weight: 800;
  letter-spacing: .08em;
  white-space: nowrap;
}
.d-1950s { background: linear-gradient(150deg, #5b2a14, #1a0c10); }
.d-1960s { background: linear-gradient(150deg, #6a1840, #140816); }
.d-1970s { background: linear-gradient(150deg, #16402a, #08140e); }
.d-1980s { background: linear-gradient(150deg, #1a2060, #0a0818); }
.d-1990s { background: linear-gradient(150deg, #4a1460, #100818); }
.d-2000s { background: linear-gradient(150deg, #143850, #080e16); }
.d-2010s { background: linear-gradient(150deg, #501428, #140810); }
.d-2020s { background: linear-gradient(150deg, #14304a, #2a1038); }
.gts-home-link {
  margin: .8rem 0 0;
  text-align: center;
}
.gts-home-link a { color: var(--muted); }

.abb-foot {
  padding: .85rem 1rem 1.2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .82rem;
  text-align: center;
}
.abb-foot p { margin: 0; }

@media (max-width: 800px) {
  .abb-burger { display: inline-grid; place-items: center; }
  .abb-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid var(--line);
    background: #12091c;
  }
  .abb-nav.is-open { display: flex; }
  .gts-decades { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 520px) {
  .abb-top { padding-inline: .6rem; }
  .abb-brand em,
  .abb-word { display: none; }
  .abb-main { width: calc(100% - .8rem); }
  .gts-home-hero { padding: 1.4rem .25rem 1.2rem; }
  .gts-home h1 { font-size: min(2.75rem, 10.8vw); white-space: nowrap; }
  .gts-hero-hook { font-size: 1.05rem; }
  .gts-challenge { overflow-wrap: anywhere; }
  .gts-home-actions { width: 100%; gap: .45rem; }
  .abb-cta,
  .abb-ghost {
    width: 0;
    min-width: 0;
    flex: 1;
    padding-inline: .65rem;
  }
  .gts-decade-section { padding: .85rem .6rem; border-radius: 16px; }
  .gts-decades { gap: .45rem; }
  .gts-decade {
    min-height: 4.25rem;
    padding: .65rem;
  }
  .gts-decade strong { font-size: 1.25rem; }
  .gts-decade span { font-size: .54rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}