/* ══════════════════════════════════════════════════════
   LAYOUT
══════════════════════════════════════════════════════ */
.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* ══════════════════════════════════════════════════════
   TOP NAV
══════════════════════════════════════════════════════ */
/* Nav: refined glassmorphism (enhanced v3.1) */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border-subtle);
  position: sticky;
  top: 0;
  background: var(--color-surface-glass);
  backdrop-filter: blur(20px);
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-sm);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: .88rem;
  color: var(--color-text-primary);
  letter-spacing: .08em;
}
.nav-logo-mark {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #e0891c 100%);
  border-radius: var(--radius-lg);
  display: grid; place-items: center;
  font-size: .9rem;
  color: var(--color-bg-base);
  box-shadow: 0 2px 14px var(--color-accent-glow);
  transition: box-shadow var(--duration-fast) var(--ease-in-out);
}
.nav-logo:hover .nav-logo-mark {
  box-shadow: 0 4px 22px var(--color-accent-border);
}
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-badge {
  font-family: var(--font-data);
  font-size: .7rem;
  color: var(--color-text-tertiary);
  background: var(--color-surface-1);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  padding: 3px 8px;
}
.sf-indicator {
  display: flex; align-items: center; gap: 6px;
  font-size: .74rem; font-family: var(--font-data); color: var(--color-text-tertiary);
}
.sf-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-text-tertiary); transition: background var(--duration-fast) var(--ease-in-out);
}
.sf-dot.online {
  background: var(--color-success);
  box-shadow: 0 0 0 2px var(--color-success-muted), 0 0 8px var(--color-success);
  animation: sfPulse 2.4s ease-in-out infinite;
}
.sf-dot.offline {
  background: var(--color-medium);
  box-shadow: 0 0 0 2px var(--color-medium-muted);
}
@keyframes sfPulse {
  0%, 100% { box-shadow: 0 0 0 2px var(--color-success-muted), 0 0 6px var(--color-success); }
  50%       { box-shadow: 0 0 0 4px var(--color-success-muted), 0 0 14px var(--color-success); }
}

/* ── Nav version badge ── */
.nav-version {
  font-family: var(--font-data); font-size: .58rem; font-weight: 500;
  color: var(--color-text-tertiary); margin-left: 6px;
  background: var(--color-surface-1); border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-sm); padding: 1px 5px; vertical-align: middle;
}

/* ══════════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════════ */
/* Hero: elevated visual hierarchy (enhanced v3.1) */
.hero {
  padding: 68px 0 52px;
  text-align: center;
}
.hero-tag {
  display: inline-block;
  font-family: var(--font-data);
  font-size: .7rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: .2em;
  text-transform: uppercase;
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-pill);
  padding: 5px 16px;
  margin-bottom: 20px;
  background: var(--color-accent-muted);
}
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.05;
  margin-bottom: 18px;
  letter-spacing: -.04em;
}
.hero h1 span { color: var(--color-accent); }
.hero p {
  color: var(--color-text-secondary);
  font-size: .9rem;
  max-width: 440px;
  margin: 0 auto 36px;
}
#app {
  display: none;
  width: 100%;
  min-height: 100vh;
}