/* Shared chrome for all frontend/www/*.html marketing pages: reset, brand
   tokens, nav, .btn family, and footer. Page-specific styles (hero, content
   layout, pricing matrix, legal-page typography, etc.) stay inline in each
   page's own <style> block. See docs/roadmap.md R-0304. */

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Brand tokens ───────────────────────────────────────── */
:root {
  --blue:    #2563EB;
  --blue-h:  #1E40AF;
  --navy:    #1E3A8A;
  --cyan:    #06B6D4;
  --dark:    #0F172A;
  --dark-2:  #1E293B;
  --slate:   #64748B;
  --muted:   #94A3B8;
  --text:    #CBD5E1;
  --border:  rgba(255,255,255,0.08);
  --white:   #FFFFFF;
  --green:   #22C55E;
  --font:    Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html { scroll-behavior: smooth; }

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Nav ────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  color: var(--white);
  text-decoration: none;
}
.nav-logo:hover { text-decoration: none; }

.nav-logo img {
  width: 28px;
  height: 28px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  justify-content: center;
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: 6px;
  padding: 0.5rem 1.1rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, opacity 0.15s, transform 0.1s;
  border: none;
  white-space: nowrap;
  text-decoration: none;
}

.btn:active { transform: scale(0.97); }

.btn-ghost {
  background: transparent;
  color: var(--muted);
}
.btn-ghost:hover { color: var(--white); text-decoration: none; }

.btn-primary {
  background: var(--blue);
  color: var(--white);
}
.btn-primary:hover { background: var(--blue-h); text-decoration: none; }

.btn-primary-lg {
  background: var(--blue);
  color: var(--white);
  font-size: 1rem;
  padding: 0.8rem 2rem;
  border-radius: 10px;
  display: inline-flex;
}
.btn-primary-lg:hover { background: var(--blue-h); text-decoration: none; }

.btn-outline-lg {
  background: transparent;
  color: var(--white);
  font-size: 1rem;
  padding: 0.8rem 2rem;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-outline-lg:hover { border-color: rgba(255,255,255,0.45); background: rgba(255,255,255,0.05); }

/* ── Footer ─────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--muted);
}

.footer-logo img { width: 20px; height: 20px; opacity: 0.7; }

.footer-copy {
  font-size: 0.8rem;
  color: var(--slate);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.15s;
}
.footer-links a:hover { color: var(--muted); }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 600px) {
  .nav-actions .btn-ghost { display: none; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}