:root {
  --hub-border: rgba(142, 171, 205, .18);
  --hub-muted: #a9b7c8;
  --hub-cyan: #a9bdcf;
  --hub-red: #c9a45c;
}

.detail-nav { gap: 18px; font-size: 11px; }

.hub-hero {
  position: relative;
  min-height: 650px;
  padding: 160px max(34px, 8vw) 100px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 35%, rgba(69, 100, 137, .14), transparent 30%),
    linear-gradient(128deg, #04070d, #08182b);
}

.hub-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79, 153, 204, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 153, 204, .07) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, #000, transparent 92%);
}

.hub-hero-copy { position: relative; z-index: 2; max-width: 990px; }
.hub-kicker { color: var(--hub-cyan); font: 700 12px/1 Manrope, Arial, sans-serif; letter-spacing: .18em; text-transform: uppercase; }
.hub-hero h1 { max-width: 1000px; margin: 28px 0 0; font: 700 clamp(58px, 7.2vw, 112px)/.94 Manrope, Arial, sans-serif; letter-spacing: -.065em; }
.hub-hero h1 em { display: block; color: var(--hub-red); font-style: normal; }
.hub-hero p { max-width: 720px; margin: 34px 0 0; color: var(--hub-muted); font-size: clamp(17px, 1.4vw, 21px); line-height: 1.7; }

.hub-intro {
  padding: 100px max(34px, 8vw) 70px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 8vw;
  align-items: start;
}
.hub-intro h2 { margin: 0; font: 650 clamp(42px, 5vw, 74px)/1 Manrope, Arial, sans-serif; letter-spacing: -.055em; }
.hub-intro h2 em { color: transparent; -webkit-text-stroke: 1px rgba(243, 246, 249, .58); font-style: normal; }
.hub-intro-copy p { margin: 0 0 20px; color: var(--hub-muted); font-size: 17px; line-height: 1.8; }

.hub-directory { padding: 45px max(34px, 8vw) 120px; }
.hub-directory-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; padding-bottom: 24px; border-bottom: 1px solid var(--hub-border); }
.hub-directory-head span { color: var(--hub-red); font: 700 11px Manrope, Arial, sans-serif; letter-spacing: .17em; text-transform: uppercase; }
.hub-directory-head p { max-width: 580px; margin: 0; color: var(--hub-muted); font-size: 15px; line-height: 1.7; }

.hub-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-left: 1px solid var(--hub-border); }
.hub-card { position: relative; min-height: 360px; padding: 38px; border-right: 1px solid var(--hub-border); border-bottom: 1px solid var(--hub-border); background: rgba(8, 20, 36, .34); transition: background .25s ease, transform .25s ease; }
.hub-card:hover { z-index: 2; background: #0a192b; transform: translateY(-3px); }
.hub-card > span { color: var(--hub-cyan); font: 700 11px Manrope, Arial, sans-serif; letter-spacing: .16em; }
.hub-card h2 { max-width: 580px; margin: 76px 0 16px; font: 650 clamp(29px, 3vw, 43px)/1.05 Manrope, Arial, sans-serif; letter-spacing: -.045em; }
.hub-card p { max-width: 630px; margin: 0; color: var(--hub-muted); font-size: 16px; line-height: 1.72; }
.hub-card-links { display: flex; flex-wrap: wrap; gap: 9px 16px; margin-top: 28px; }
.hub-card-links a { min-height: 42px; display: inline-flex; align-items: center; color: #dce5ee; font-size: 14px; border-bottom: 1px solid rgba(201, 164, 92, .5); }
.hub-card-links a:hover { color: #fff; border-color: var(--hub-cyan); }
.hub-card-arrow { position: absolute; right: 34px; top: 32px; color: var(--hub-red); font-size: 22px; }

.hub-grid.compact { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.hub-grid.compact .hub-card { min-height: 310px; }
.hub-grid.compact .hub-card h2 { margin-top: 58px; font-size: clamp(27px, 2.4vw, 38px); }

.guide-body { padding: 100px max(34px, 8vw); background: #f4f6f8; color: #0b1b2e; }
.guide-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 8vw; align-items: start; }
.guide-content { max-width: 820px; }
.guide-content h2 { margin: 0 0 24px; font: 650 clamp(38px, 4vw, 62px)/1.06 Manrope, Arial, sans-serif; letter-spacing: -.05em; }
.guide-content h3 { margin: 58px 0 14px; font: 650 28px/1.2 Manrope, Arial, sans-serif; letter-spacing: -.03em; }
.guide-content p, .guide-content li { color: #526173; font-size: 17px; line-height: 1.78; }
.guide-content ul { margin: 22px 0; padding-left: 24px; }
.guide-content li { margin: 10px 0; }
.guide-note { position: sticky; top: 100px; padding: 28px; border: 1px solid rgba(7, 17, 31, .14); background: #fff; }
.guide-note span { color: var(--hub-red); font: 700 11px Manrope, Arial, sans-serif; letter-spacing: .15em; text-transform: uppercase; }
.guide-note p { color: #526173; font-size: 15px; line-height: 1.7; }
.guide-note a { min-height: 48px; padding: 0 16px; display: inline-flex; align-items: center; background: var(--hub-red); color: white; font-size: 14px; }

.error-main { min-height: 100vh; padding: 145px max(28px, 8vw) 90px; display: grid; place-items: center; background: radial-gradient(circle at 72% 32%, rgba(69, 100, 137, .14), transparent 25%), #05070c; }
.error-panel { width: min(920px, 100%); padding: clamp(34px, 6vw, 72px); border: 1px solid var(--hub-border); background: rgba(8, 20, 36, .75); }
.error-code { color: var(--hub-red); font: 700 12px Manrope, Arial, sans-serif; letter-spacing: .18em; }
.error-panel h1 { margin: 28px 0 20px; font: 700 clamp(48px, 7vw, 88px)/.98 Manrope, Arial, sans-serif; letter-spacing: -.06em; }
.error-panel p { max-width: 650px; color: var(--hub-muted); font-size: 18px; line-height: 1.75; }
.error-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.error-links a { min-height: 52px; padding: 0 20px; display: inline-flex; align-items: center; border: 1px solid var(--hub-border); color: #fff; font-size: 14px; }
.error-links a:first-child { border-color: var(--hub-red); background: var(--hub-red); }

@media (max-width: 1250px) {
  .detail-nav { display: none; }
  .detail-menu { display: block; margin-left: auto; }
}

@media (max-width: 900px) {
  .hub-intro, .guide-layout { grid-template-columns: 1fr; }
  .hub-grid, .hub-grid.compact { grid-template-columns: 1fr; }
  .guide-note { position: static; }
}

@media (max-width: 720px) {
  .hub-hero { min-height: 590px; padding: 125px 20px 76px; }
  .hub-hero h1 { font-size: clamp(48px, 14vw, 68px); }
  .hub-hero p { font-size: 17px; }
  .hub-intro { padding: 76px 20px 52px; }
  .hub-intro-copy p { font-size: 16px; }
  .hub-directory { padding: 30px 20px 80px; }
  .hub-directory-head { display: block; }
  .hub-directory-head p { margin-top: 16px; }
  .hub-card { min-height: 320px; padding: 28px; }
  .hub-card h2 { margin-top: 60px; }
  .guide-body { padding: 76px 20px; }
  .guide-content p, .guide-content li { font-size: 16px; }
  .error-main { padding-inline: 18px; }
}

/* Alliance Enterprise directory and guide palette */
:root {
  --hub-border: rgba(190, 204, 220, .18);
  --hub-muted: #afbccb;
  --hub-cyan: #a9bdcf;
  --hub-red: #c9a45c;
}
.hub-hero {
  background:
    radial-gradient(circle at 78% 35%, rgba(69, 100, 137, .18), transparent 30%),
    linear-gradient(128deg, #04070d, #10233a);
}
.guide-note span { color: #76551d; }
.guide-note a,
.error-links a:first-child { color: #071426; }