/* PPC Stack Lab — shared styles */
:root {
  --bg: #0c0e12;
  --bg-soft: #12151c;
  --bg-card: #141821;
  --border: #232936;
  --text: #eef1f6;
  --muted: #a7b0c0;
  --faint: #8a93a6;
  --accent: #e8a33d;
  --accent-ink: #1a1206;
  --green: #4cc38a;
  --radius: 12px;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(12, 14, 18, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { font-weight: 700; font-size: 19px; color: var(--text); letter-spacing: 0.2px; }
.brand span { color: var(--accent); }
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a { color: var(--muted); font-size: 15px; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a.active { color: var(--text); }

/* Hero */
.hero { padding: 96px 0 72px; }
.eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: 1.5px; text-transform: uppercase;
  color: var(--accent); margin-bottom: 18px; font-weight: 600;
}
h1 {
  font-size: clamp(38px, 5.4vw, 62px);
  line-height: 1.08; letter-spacing: -1px; margin: 0 0 20px; font-weight: 750;
}
.lede { font-size: 20px; color: var(--muted); max-width: 640px; margin: 0 0 34px; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 14px 26px; border-radius: 10px;
  font-weight: 650; font-size: 16px; border: 1px solid transparent;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { text-decoration: none; filter: brightness(1.07); }
.btn-ghost { border-color: var(--border); color: var(--text); background: var(--bg-soft); }
.btn-ghost:hover { text-decoration: none; border-color: var(--faint); }

/* Sections */
.section { padding: 64px 0; border-top: 1px solid var(--border); }
h2 { font-size: clamp(26px, 3.4vw, 36px); letter-spacing: -0.5px; margin: 0 0 14px; font-weight: 700; }
h3 { font-size: 20px; margin: 0 0 8px; font-weight: 650; }
.section-sub { color: var(--muted); max-width: 680px; margin: 0 0 36px; font-size: 18px; }

/* App cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; display: flex; flex-direction: column;
}
.card p { color: var(--muted); font-size: 15.5px; margin: 0 0 18px; flex: 1; }
.card-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.badge {
  font-size: 12.5px; font-weight: 650; letter-spacing: 0.4px; text-transform: uppercase;
  padding: 5px 11px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted);
  white-space: nowrap;
}
.badge.review { color: var(--accent); border-color: rgba(232, 163, 61, 0.45); }
.badge.soon { color: var(--muted); }
.badge.dev { color: var(--green); border-color: rgba(76, 195, 138, 0.4); }
.card-link { font-size: 15px; font-weight: 600; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; counter-reset: step; }
.step { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink); font-weight: 750; margin-bottom: 14px;
}
.step p { color: var(--muted); font-size: 15.5px; margin: 0; }

/* FAQ */
details {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 22px; margin-bottom: 12px;
}
summary { cursor: pointer; font-weight: 650; font-size: 17px; }
summary::-webkit-details-marker { color: var(--accent); }
details p { color: var(--muted); margin: 12px 0 4px; font-size: 16px; }

/* Disclosure strip */
.disclosure {
  border: 1px solid var(--border); border-left: 3px solid var(--accent);
  background: var(--bg-soft); border-radius: 8px; padding: 18px 22px;
  color: var(--muted); font-size: 15px; margin-top: 40px;
}

/* Contact block */
.contact-box {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 36px; text-align: center;
}
.contact-box .email { font-size: 24px; font-weight: 700; color: var(--text); }
.contact-box p { color: var(--muted); }

/* Footer */
footer { border-top: 1px solid var(--border); padding: 40px 0; margin-top: 40px; }
.foot-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.foot-inner p { color: var(--faint); font-size: 14px; margin: 4px 0; }
.foot-links { display: flex; gap: 20px; flex-wrap: wrap; }
.foot-links a { color: var(--muted); font-size: 14px; }

/* Utility */
.center { text-align: center; }
.mt { margin-top: 36px; }
.small { font-size: 14.5px; color: var(--faint); }

@media (max-width: 640px) {
  .hero { padding: 64px 0 48px; }
  .nav-links { gap: 16px; }
  .nav-links a { font-size: 14px; }
  .contact-box .email { font-size: 19px; }
}