/* Arena flagship surfaces shared by the KaspaForge homepage and public Docs.
   The visual language stays inside the Operational BlockDAG system: one bright accent,
   exact protocol labels, no casino imagery and no decorative security claims. */
:root {
  --kf-arena: var(--kf-accent-secondary, #63ead8);
  --kf-arena-warm: var(--kf-warning, #f0b95b);
}

.arena-spotlight {
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 8vw, 104px) 0;
  border-block: 1px solid var(--bd);
  background:
    radial-gradient(circle at 78% 22%, rgb(99 234 216 / .12), transparent 34%),
    linear-gradient(135deg, rgb(16 26 31 / .96), rgb(7 12 15 / .98));
}

.arena-spotlight::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 49.8%, rgb(99 234 216 / .055) 50%, transparent 50.2%),
    linear-gradient(0deg, transparent 49.8%, rgb(99 234 216 / .035) 50%, transparent 50.2%);
  background-size: 48px 48px;
  mask-image: linear-gradient(90deg, transparent, #000 45%, #000);
}

.arena-spotlight-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}

.arena-flag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  width: fit-content;
  margin-bottom: 16px;
  padding: 7px 11px;
  border: 1px solid rgb(99 234 216 / .38);
  border-radius: 999px;
  color: var(--kf-arena);
  background: rgb(99 234 216 / .06);
  font: 600 12px/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.arena-flag::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--kf-success, #47d18c);
  box-shadow: 0 0 0 4px rgb(71 209 140 / .1);
}

.arena-spotlight h2 {
  max-width: 15ch;
  margin: 0;
  font-size: clamp(2.35rem, 5vw, 4.65rem);
  line-height: .99;
  letter-spacing: -.025em;
}

.arena-spotlight h2 span {
  color: var(--kf-arena);
}

.arena-spotlight-copy > p {
  max-width: 62ch;
  margin: 22px 0 0;
  color: var(--ash);
  font-size: 16px;
  line-height: 1.66;
}

.arena-spotlight-copy .hero-cta {
  margin-top: 26px;
}

.arena-qualifiers {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.arena-qualifiers li {
  padding: 7px 11px;
  border: 1px solid var(--bd);
  border-radius: 999px;
  color: var(--ash);
  background: rgb(7 12 15 / .66);
  font: 500 12px/1.2 var(--mono);
}

.arena-stack {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 22px;
  border: 1px solid rgb(99 234 216 / .25);
  border-radius: 16px;
  background: rgb(7 12 15 / .76);
  box-shadow: var(--kf-shadow-elevated, 0 18px 48px rgb(0 0 0 / .38));
}

.arena-stack::after {
  content: "ONE HAND · FIVE VERIFIABLE LAYERS";
  position: absolute;
  top: -10px;
  right: 18px;
  padding: 4px 8px;
  border: 1px solid var(--bd);
  border-radius: 4px;
  color: var(--ash2);
  background: var(--iron);
  font: 600 10px/1 var(--mono);
  letter-spacing: .08em;
}

.arena-stack-step {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  min-width: 0;
  padding: 12px 13px;
  border: 1px solid var(--bd-soft);
  border-radius: 10px;
  background: rgb(16 26 31 / .78);
}

.arena-stack-step > span:first-child {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgb(99 234 216 / .3);
  border-radius: 9px;
  color: var(--kf-arena);
  font: 700 12px/1 var(--mono);
}

.arena-stack-step b {
  display: block;
  color: var(--ingot);
  font-size: 14px;
}

.arena-stack-step small {
  display: block;
  margin-top: 3px;
  color: var(--ash2);
  font-size: 12px;
  line-height: 1.4;
}

.arena-stack-step > em {
  color: var(--kf-success, #47d18c);
  font: 600 10px/1 var(--mono);
  letter-spacing: .07em;
  text-transform: uppercase;
}

.arena-doc-card {
  border-color: rgb(99 234 216 / .42) !important;
  background:
    linear-gradient(135deg, rgb(99 234 216 / .075), transparent 56%),
    var(--plate) !important;
}

.kf-module[data-product="arena"] .kf-module-i {
  color: var(--kf-arena);
  border-color: rgb(99 234 216 / .36);
}

.arena-doc-card h3,
.arena-doc-card .more {
  color: var(--kf-arena) !important;
}

.arena-doc-lead {
  margin: 24px 0 30px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid rgb(99 234 216 / .35);
  border-radius: 16px;
  background:
    linear-gradient(125deg, rgb(99 234 216 / .075), transparent 58%),
    var(--plate);
}

.arena-doc-lead h2 {
  margin: 10px 0 0;
  font-size: clamp(25px, 4vw, 38px);
}

.arena-doc-lead p {
  margin-top: 12px;
  color: var(--ash);
}

.arena-doc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.arena-layer-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.arena-layer {
  min-width: 0;
  padding: 15px;
  border: 1px solid var(--bd);
  border-radius: 11px;
  background: var(--plate);
}

.arena-layer span {
  color: var(--kf-arena);
  font: 600 11px/1 var(--mono);
  letter-spacing: .07em;
  text-transform: uppercase;
}

.arena-layer b {
  display: block;
  margin-top: 9px;
  color: var(--ingot);
  font-size: 14px;
}

.arena-layer p {
  margin: 7px 0 0;
  color: var(--ash2);
  font-size: 12.5px;
  line-height: 1.5;
}

.arena-economy {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.arena-economy > div {
  padding: 16px;
  border: 1px solid var(--bd);
  border-radius: 11px;
  background: var(--plate);
}

.arena-economy dt {
  color: var(--ash2);
  font: 600 11px/1.3 var(--mono);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.arena-economy dd {
  margin: 8px 0 0;
  color: var(--ingot);
  font-size: 14px;
  line-height: 1.5;
}

@media (max-width: 980px) {
  .arena-spotlight-grid {
    grid-template-columns: 1fr;
  }

  .arena-spotlight h2 {
    max-width: 18ch;
  }

  .arena-layer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .arena-spotlight {
    padding: 56px 0;
  }

  .arena-stack {
    padding: 17px 12px 12px;
  }

  .arena-stack::after {
    right: 10px;
    font-size: 9px;
  }

  .arena-stack-step {
    grid-template-columns: 34px minmax(0, 1fr);
  }

  .arena-stack-step > em {
    display: none;
  }

  .arena-layer-grid,
  .arena-economy {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .arena-spotlight *,
  .arena-doc-lead * {
    scroll-behavior: auto;
  }
}