/* agol_fdw site — layout: nav, hero, footer, feature grid */

/* ===== top nav ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(15, 30, 51, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav__brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); }
.nav__brand:hover { color: var(--text); }
.nav__brand img { width: 36px; height: 36px; }
.nav__brand .wordmark { font-size: 1.15rem; }
.nav__links { display: flex; align-items: center; gap: 26px; }
.nav__links a { color: var(--muted); font-size: 0.95rem; font-weight: 500; }
.nav__links a:hover { color: var(--text); }
.nav__links a.active { color: var(--cyan); }
.nav__toggle { display: none; background: none; border: 1px solid var(--border); color: var(--text); border-radius: var(--radius-sm); padding: 6px 10px; cursor: pointer; }
@media (max-width: 860px) {
  .nav__toggle { display: inline-block; }
  .nav__links {
    position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border);
    padding: 0; max-height: 0; overflow: hidden; transition: max-height 0.25s ease;
  }
  .nav__links.open { max-height: 420px; padding: 8px 0; }
  .nav__links a { padding: 12px 24px; }
}

/* ===== hero ===== */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(900px 400px at 70% -10%, rgba(34, 211, 238, 0.14), transparent 60%),
    linear-gradient(180deg, var(--ink), var(--bg));
  border-bottom: 1px solid var(--border);
}
.hero__grid {
  position: absolute; inset: 0; opacity: 0.4; pointer-events: none;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(700px 380px at 50% 20%, black, transparent 75%);
}
.hero__inner { position: relative; padding: 96px 0 88px; text-align: center; }
.hero__logo { width: 220px; height: auto; margin-bottom: 28px; }
.hero h1 { max-width: 16ch; margin: 0 auto 18px; }
.hero .lead { max-width: 60ch; margin: 0 auto 32px; }
.hero__cta { display: inline-flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

/* ===== feature cards ===== */
.feature-card {
  display: flex; flex-direction: column; height: 100%;
  text-decoration: none; color: inherit;
}
.feature-card h3 { color: var(--text); }
.feature-card p { color: var(--muted); flex: 1; }
.feature-card .icon-wrap {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  display: grid; place-items: center; background: var(--cyan-dim);
  border: 1px solid rgba(34, 211, 238, 0.3); color: var(--cyan); margin-bottom: 14px;
}
.feature-card .card__foot { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; }
.feature-card .card__more { color: var(--cyan); font-size: 0.9rem; font-weight: 600; }

/* ===== feature page sub-hero ===== */
.subhero {
  background: linear-gradient(180deg, var(--ink), var(--bg));
  border-bottom: 1px solid var(--border);
  padding: 64px 0 48px;
}
.subhero .lead { margin-top: 8px; }

/* ===== footer ===== */
.footer {
  border-top: 1px solid var(--border);
  background: var(--ink);
  padding: 48px 0;
  color: var(--muted);
  font-size: 0.92rem;
}
.footer__grid { display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; align-items: flex-start; }
.footer__col h4 { color: var(--text); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.1em; margin: 0 0 12px; }
.footer__col a { display: block; color: var(--muted); padding: 4px 0; }
.footer__col a:hover { color: var(--cyan); }
.footer__bottom { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; }

/* ===== architecture diagram wrap ===== */
.diagram-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.diagram-wrap svg { width: 100%; height: auto; display: block; }

/* ===== steps (install/architecture) ===== */
.steps { counter-reset: step; list-style: none; padding: 0; }
.steps li { position: relative; padding: 0 0 28px 56px; }
.steps li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 0;
  width: 36px; height: 36px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--cyan-dim); border: 1px solid rgba(34, 211, 238, 0.4);
  color: var(--cyan); font-weight: 700; font-family: var(--mono);
}
.steps li:not(:last-child)::after {
  content: ""; position: absolute; left: 17px; top: 38px; bottom: 4px;
  width: 2px; background: var(--border);
}

/* ===== FAQ ===== */
.faq details {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0; margin-bottom: 12px;
}
.faq summary {
  cursor: pointer; padding: 18px 22px; font-weight: 600;
  list-style: none; display: flex; justify-content: space-between; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--cyan); font-size: 1.3rem; }
.faq details[open] summary::after { content: "−"; }
.faq .faq__a { padding: 0 22px 20px; color: var(--muted); }

/* ===== callout ===== */
.callout {
  border-left: 3px solid var(--cyan); background: var(--cyan-dim);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px; margin: 24px 0;
}
.callout--wip { border-left-color: var(--wip); background: rgba(251, 191, 36, 0.1); }

.related { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.related a {
  padding: 8px 14px; border: 1px solid var(--border); border-radius: 999px;
  color: var(--muted); font-size: 0.9rem;
}
.related a:hover { border-color: var(--cyan); color: var(--cyan); }