/* ------------------------------- hero ----------------------------------- */

.hero {
  padding: 76px 0 40px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(34px, 4.4vw, 52px);
  line-height: 1.08;
  margin-bottom: 22px;
}
.hero h1 .accent { color: var(--accent); }
.hero-sub {
  font-size: 16.5px;
  max-width: 46ch;
  margin-bottom: 30px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}
.hero .badge-row { margin-top: 6px; }

.hero-terminal .terminal-body { min-height: 268px; }
.boot-line { opacity: 0; }
.boot-line.shown { opacity: 1; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 48px; }
}

/* ------------------------------ strip ------------------------------------ */

.strip {
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  padding: 22px 0;
}
.strip .badge-row { justify-content: center; }

/* ----------------------------- features ---------------------------------- */

.section-head {
  max-width: 640px;
  margin-bottom: 44px;
}
.section-head h2 { font-size: clamp(24px, 3vw, 32px); }
.section-head p { font-size: 15.5px; margin-bottom: 0; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
}
.feature-card {
  background: var(--bg);
  padding: 26px 24px;
  transition: background 0.15s ease;
}
.feature-card:hover { background: var(--bg-panel); }
.feature-card .f-icon {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 16px;
  opacity: 0.85;
}
.feature-card h3 { font-size: 16px; margin-bottom: 8px; }
.feature-card p { font-size: 14px; margin-bottom: 0; }

@media (max-width: 760px) {
  .feature-grid { grid-template-columns: 1fr; }
}

/* ---------------------------- quickstart ---------------------------------- */

.quickstart-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}
.quickstart-steps { display: flex; flex-direction: column; gap: 20px; }
.qs-step { display: flex; gap: 14px; }
.qs-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  border-radius: 50%;
  width: 26px; height: 26px;
  flex: none;
  display: flex; align-items: center; justify-content: center;
}
.qs-step h4 { font-size: 15px; margin-bottom: 4px; }
.qs-step p { font-size: 14px; margin-bottom: 0; }

@media (max-width: 860px) {
  .quickstart-grid { grid-template-columns: 1fr; }
}

/* ---------------------------- architecture -------------------------------- */

.stack {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.stack-layer {
  display: grid;
  grid-template-columns: 200px 1fr;
  border-top: 1px solid var(--border-soft);
}
.stack-layer:first-child { border-top: none; }
.stack-layer .layer-name {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--accent);
  padding: 18px 20px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border-soft);
}
.stack-layer .layer-desc {
  padding: 18px 22px;
  font-size: 14px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
}
@media (max-width: 700px) {
  .stack-layer { grid-template-columns: 1fr; }
  .stack-layer .layer-name { border-right: none; border-bottom: 1px solid var(--border-soft); }
}

/* ------------------------------ roadmap ----------------------------------- */

.roadmap-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.roadmap-list { list-style: none; margin: 0; padding: 0; font-family: var(--font-mono); font-size: 14.5px; }
.roadmap-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-dim);
}
.roadmap-list.done li { color: var(--text-faint); text-decoration: line-through; text-decoration-color: var(--border); }
.roadmap-list li::before { content: "[ ]"; color: var(--text-faint); }
.roadmap-list.done li::before { content: "[x]"; color: var(--accent-soft); }
@media (max-width: 700px) {
  .roadmap-grid { grid-template-columns: 1fr; }
}

/* -------------------------------- cta -------------------------------------- */

.cta-band {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 52px 40px;
  text-align: center;
  background:
    radial-gradient(ellipse at 50% -20%, var(--accent-glow), transparent 60%),
    var(--bg-panel);
}
.cta-band h2 { font-size: clamp(22px, 3vw, 30px); margin-bottom: 12px; }
.cta-band p { max-width: 46ch; margin: 0 auto 26px; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }