/*
  Defined Digital — shared design system
  Generated per ui-ux-pro-max: "Dark Mode (OLED)" style, Developer Tool-adjacent
  product framing, Hero-Centric Design landing pattern. Colors/typography are
  the literal --design-system output (Tailwind slate scale + green-500 accent).
*/

:root {
  --background: #0f172a;
  --surface: #1e293b;
  --surface-hover: #272f42;
  --foreground: #f8fafc;
  --muted-foreground: #94a3b8;
  --border: #475569;
  --accent: #22c55e;
  --accent-strong: #4ade80;
  --on-accent: #0f172a;
  --destructive: #f87171;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: var(--background);
  color: var(--foreground);
  font-family: 'Inter', sans-serif;
}

h1, h2, h3, h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  line-height: 1.12;
  color: var(--foreground);
  letter-spacing: -0.02em;
}

.font-mono { font-family: 'JetBrains Mono', monospace; }

/* ---------- focus / a11y ---------- */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ---------- eyebrow label ---------- */
.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
}
.eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  flex: none;
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.7);
}

/* ---------- nav ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted-foreground);
  transition: color 0.2s ease;
}
.nav-link:hover { color: var(--foreground); }

.nav-toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--foreground);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
#mobile-nav { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
#mobile-nav.open { max-height: 320px; }
.nav-open .nav-toggle-line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-open .nav-toggle-line:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle-line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- buttons (min 44px touch target) ---------- */
.btn {
  font-weight: 600;
  font-size: 0.95rem;
  min-height: 44px;
  padding: 0.7rem 1.6rem;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--on-accent); box-shadow: 0 0 0 rgba(34,197,94,0); }
.btn-primary:hover { background: var(--accent-strong); box-shadow: 0 0 20px rgba(34, 197, 94, 0.35); transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-outline {
  background: transparent;
  color: var(--foreground);
  border: 1.5px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- links ---------- */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.2s ease, color 0.2s ease;
}
.text-link:hover { gap: 0.6rem; color: var(--accent-strong); }

/* ---------- card ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35); }

.icon-tile {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  background: var(--surface-hover);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
}

/* ---------- terminal card (hero visual) ---------- */
.terminal {
  background: #0b1120;
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}
.terminal-bar {
  background: var(--surface);
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border-bottom: 1px solid var(--border);
}
.terminal-dot { width: 10px; height: 10px; border-radius: 50%; }
.terminal pre {
  margin: 0;
  padding: 1.25rem 1.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--muted-foreground);
  overflow-x: auto;
}
.terminal .t-accent { color: var(--accent); }
.terminal .t-fg { color: var(--foreground); }

/* ---------- checklist rows ---------- */
.check-row svg { color: var(--accent); flex: none; }

/* ---------- form ---------- */
.field label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--muted-foreground);
  display: block;
  margin-bottom: 0.5rem;
}
.field input, .field select, .field textarea {
  width: 100%;
  min-height: 44px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.9rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.98rem;
  color: var(--foreground);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  appearance: none;
}
.field textarea { min-height: auto; }
.field select option { background: var(--surface); color: var(--foreground); }
.field input::placeholder, .field textarea::placeholder { color: #64748b; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}
.field .field-error { font-size: 0.8rem; color: var(--destructive); margin-top: 0.4rem; display: none; font-weight: 600; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--destructive); }
.field.has-error .field-error { display: block; }

.btn-spinner {
  display: none;
  width: 16px; height: 16px;
  border: 2px solid rgba(15, 23, 42, 0.35);
  border-top-color: var(--on-accent);
  border-radius: 50%;
  animation: dd-spin 0.7s linear infinite;
}
@keyframes dd-spin { to { transform: rotate(360deg); } }

/* ---------- reveal-on-load ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(16px);
  animation: dd-fade-up 0.6s ease forwards;
}
@keyframes dd-fade-up { to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-up { animation: none; opacity: 1; transform: none; }
  .card, .badge { transition: none; }
}

/* ---------- pricing tabs ---------- */
.pricing-tab {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted-foreground);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.65rem 1.25rem;
  min-height: 44px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.pricing-tab:hover { color: var(--foreground); border-color: var(--muted-foreground); }
.pricing-tab[aria-selected="true"] {
  color: var(--on-accent);
  background: var(--accent);
  border-color: var(--accent);
}

/* ---------- pricing tier card ---------- */
.price-tier {
  position: relative;
  display: flex;
  flex-direction: column;
}
.price-tier.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 20px 45px rgba(34, 197, 94, 0.15);
}
.price-tier .tier-badge {
  position: absolute;
  top: -0.8rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--on-accent);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  white-space: nowrap;
}
.price-tier .tier-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--foreground);
  line-height: 1;
}
.price-tier .tier-price span {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--muted-foreground);
}
.price-tier ul { flex: 1; }
.price-tier li { display: flex; align-items: flex-start; gap: 0.6rem; }
.price-tier li svg { color: var(--accent); flex: none; margin-top: 0.2rem; }

/* ---------- flat price list rows ---------- */
.price-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
}
.price-row:last-child { border-bottom: none; }
.price-row .price-row-name { color: var(--foreground); font-weight: 600; }
.price-row .price-row-desc { color: var(--muted-foreground); font-size: 0.88rem; margin-top: 0.15rem; }
.price-row .price-row-value {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
  text-align: right;
}

/* ---------- long-form legal / policy content ---------- */
.prose { color: var(--muted-foreground); }
.prose h1, .prose h2, .prose h3, .prose h4 { color: var(--foreground); }
.prose strong { color: var(--foreground); }
.prose a { color: var(--accent); }
.prose a:hover { color: var(--accent-strong); }
.prose ul > li::marker { color: var(--accent); }
.prose hr { border-color: var(--border); }
.prose blockquote { border-left-color: var(--border); color: var(--muted-foreground); }
.placeholder-flag {
  background: rgba(248, 113, 113, 0.12);
  color: var(--destructive);
  border-radius: 4px;
  padding: 0.05em 0.35em;
}