body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--surface-canvas);
}
a { text-decoration: none; color: inherit; }
::selection { background: var(--brand-primary-subtle); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: background var(--duration-base) var(--ease-standard), border-color var(--duration-base) var(--ease-standard);
}
.btn-sm { padding: 6px 12px; font-size: var(--text-sm); gap: 6px; }
.btn-md { padding: 9px 16px; font-size: var(--text-sm); gap: 8px; }
.btn-lg { padding: 12px 22px; font-size: var(--text-base); gap: 8px; }
.btn-primary { background: var(--brand-primary); color: var(--brand-on-primary); }
.btn-primary:hover { background: var(--brand-primary-hover); }
.btn-secondary { background: var(--surface-card); color: var(--text-primary); border-color: var(--border-default); }
.btn-secondary:hover { background: var(--surface-sunken); }

.icon-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  transition: background var(--duration-base) var(--ease-standard);
}
.icon-btn:hover { background: var(--surface-sunken); }
.icon-btn svg { display: block; }
.nav-toggle { display: none; }

.btn:focus-visible,
.icon-btn:focus-visible,
a:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/* ---- Header ---- */
.site-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 64px;
  border-bottom: 1px solid var(--border-default);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 32px; }
.brand span { font: var(--text-h4); color: var(--text-primary); }
.primary-nav {
  display: flex;
  gap: 32px;
  font: var(--text-body-sm);
  color: var(--text-secondary);
  font-weight: 600;
}
.header-actions { display: flex; gap: 12px; align-items: center; }

/* ---- Hero ---- */
.hero { padding: 96px 64px 80px; text-align: center; max-width: 780px; margin: 0 auto; }
.hero h1 {
  font: var(--text-display);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
  margin: 0 0 20px;
}
.hero h1 .accent { color: var(--brand-primary); }
.hero p { font: var(--text-body-lg); color: var(--text-secondary); margin: 0 0 36px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; }

/* ---- Dashboard preview ---- */
.dashboard-wrap { max-width: 900px; margin: 0 auto 96px; padding: 0 64px; }
.dashboard-frame {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.dashboard-titlebar { background: var(--surface-sunken); padding: 10px 20px; display: flex; gap: 6px; }
.dashboard-titlebar span { width: 10px; height: 10px; border-radius: 50%; background: var(--neutral-300); }
.dashboard-body { background: var(--surface-card); padding: 32px; }
.stat-row { display: flex; gap: 16px; margin-bottom: 24px; }
.stat { flex: 1; border-radius: 12px; padding: 16px; }
.stat-label { font: var(--text-caption); text-transform: uppercase; }
.stat-value { font: var(--text-h2); }
.stat-green { background: var(--green-50); }
.stat-green .stat-label { color: var(--green-800); }
.stat-green .stat-value { color: var(--green-900); }
.stat-red { background: var(--red-50); }
.stat-red .stat-label { color: var(--red-700); }
.stat-red .stat-value { color: var(--red-900); }
.stat-yellow { background: var(--yellow-50); }
.stat-yellow .stat-label { color: var(--yellow-700); }
.stat-yellow .stat-value { color: var(--yellow-900); }
.issue-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 16px;
  border: 1px solid var(--border-default);
  border-radius: 12px;
}
.issue-row .issue-title { font: var(--text-body); font-weight: 600; }

/* ---- Badge ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 700;
  white-space: nowrap;
}
.badge .dot { width: 6px; height: 6px; border-radius: 50%; }
.badge-critical {
  background: var(--status-critical-bg);
  border: 1px solid var(--status-critical-border);
  color: var(--status-critical-text);
}
.badge-critical .dot { background: var(--status-critical); }

/* ---- Features ---- */
.features { max-width: 1000px; margin: 0 auto; padding: 0 64px 96px; }
.features-grid { display: flex; gap: 32px; }
.feature { flex: 1; }
.feature-icon { width: 40px; height: 40px; border-radius: 10px; background: var(--brand-primary-subtle); margin-bottom: 16px; }
.feature h3 { font: var(--text-h4); color: var(--text-primary); margin: 0 0 8px; }
.feature p { font: var(--text-body); color: var(--text-secondary); margin: 0; }

/* ---- Waitlist ---- */
.waitlist { background: var(--neutral-900); color: #fff; padding: 80px 64px; }
.waitlist-intro { text-align: center; margin-bottom: 40px; }
.waitlist-intro h2 { font: var(--text-h2); margin: 0 0 12px; }
.waitlist-intro p { font: var(--text-body-lg); color: var(--neutral-300); margin: 0; }
.waitlist-card { background: var(--surface-card); border-radius: var(--radius-xl); padding: 40px; max-width: 500px; margin: 0 auto; }
.waitlist-form { display: flex; flex-direction: column; gap: 16px; max-width: 420px; margin: 0 auto; }
.waitlist-form[hidden] { display: none; }
.field { display: flex; flex-direction: column; gap: 6px; font-family: var(--font-sans); }
.field .field-label { font: var(--text-label); color: var(--text-primary); }
.field input {
  font: var(--text-body);
  padding: 9px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  background: var(--surface-card);
  color: var(--text-primary);
  outline: none;
}
.field input:focus { border-color: var(--border-focus); box-shadow: var(--focus-ring); }
.field.has-error input { border-color: var(--red-400); box-shadow: none; }
.field .field-error { font: var(--text-caption); color: var(--status-critical-text); }
.waitlist-caption { font: var(--text-caption); color: var(--text-tertiary); text-align: center; }
.waitlist-caption[role="alert"]:empty { display: none; }
.waitlist-caption[role="alert"] { color: var(--status-critical-text); }
.field-hp {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.waitlist-success { text-align: center; padding: 20px 0; }
.success-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--green-50);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.waitlist-success h3 { font: var(--text-h4); color: var(--text-primary); margin: 0 0 6px; }
.waitlist-success p { font: var(--text-body); color: var(--text-secondary); margin: 0; }

/* ---- FAQ ---- */
.faq { max-width: 760px; margin: 0 auto; padding: 96px 64px; }
.faq h2 { font: var(--text-h2); color: var(--text-primary); margin: 0 0 32px; text-align: center; }
.faq-list { display: flex; flex-direction: column; gap: 24px; }
.faq-item { border-bottom: 1px solid var(--border-default); padding-bottom: 24px; }
.faq-item .q { font: var(--text-h4); color: var(--text-primary); margin-bottom: 8px; }
.faq-item .a { font: var(--text-body); color: var(--text-secondary); margin: 0; }

/* ---- Footer ---- */
.site-footer {
  padding: 32px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font: var(--text-body-sm);
  color: var(--text-tertiary);
  border-top: 1px solid var(--border-default);
}
.footer-nav { display: flex; gap: 24px; }

/* ================= Responsive ================= */
@media (max-width: 960px) {
  .site-header,
  .hero,
  .dashboard-wrap,
  .features,
  .waitlist,
  .faq,
  .site-footer {
    padding-left: 32px;
    padding-right: 32px;
  }
}

@media (max-width: 768px) {
  .site-header { padding-top: 16px; padding-bottom: 16px; }
  .header-actions { gap: 8px; }

  .primary-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--surface-canvas);
    border-bottom: 1px solid var(--border-default);
    box-shadow: var(--shadow-md);
    padding: 8px 20px 16px;
    z-index: 20;
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav a {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-subtle);
  }
  .primary-nav a:last-child { border-bottom: none; }
  .nav-toggle { display: inline-flex; }

  .hero { padding: 56px 20px; }
  .hero h1 { font-size: clamp(32px, 8vw, 44px); }

  .dashboard-wrap { margin-bottom: 64px; }
  .dashboard-body { padding: 20px; }
  .stat-row { flex-direction: column; }

  .features { padding-bottom: 64px; }
  .features-grid { flex-direction: column; gap: 40px; }

  .waitlist { padding: 56px 20px; }
  .waitlist-card { padding: 28px 24px; }

  .faq { padding-top: 64px; padding-bottom: 64px; }

  .site-footer { flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 480px) {
  .site-header,
  .hero,
  .dashboard-wrap,
  .features,
  .waitlist,
  .faq,
  .site-footer {
    padding-left: 16px;
    padding-right: 16px;
  }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .header-actions .btn { padding: 6px 10px; }
  .stat-value { font-size: var(--text-xl); }
}