:root {
  --cb-bg: #fbfbfa;
  --cb-border: #e4e7e5;
  --cb-border-soft: #edefed;
  --cb-text: #191c1a;
  --cb-muted: #565c59;
  --cb-faint: #8b918d;
  --cb-accent: #2f9a7c;
  --cb-accent-strong: #237e65;
  --cb-accent-soft: #eafbf5;
  --cb-accent-border: rgba(79, 185, 156, 0.35);
  --cb-card: #ffffff;
  --cb-radius: 12px;
  --cb-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --cb-wrap: 880px;
}

.cb-shell-header,
.cb-shell-footer {
  font-family: var(--cb-font);
  color: var(--cb-text);
}

.cb-shell-header .wrap,
.cb-shell-footer .wrap {
  width: min(100% - 48px, var(--cb-wrap));
  max-width: var(--cb-wrap);
  margin: 0 auto;
}

.cb-shell-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251, 251, 250, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--cb-border-soft);
}

.cb-shell-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}

.cb-shell-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--cb-text);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
  text-decoration: none;
  flex-shrink: 0;
}

.cb-shell-brand:hover {
  color: var(--cb-text);
}

.cb-shell-brand img {
  width: 26px;
  height: 26px;
  display: block;
}

.cb-shell-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  min-width: 0;
}

.cb-shell-nav a {
  color: var(--cb-muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.cb-shell-nav a:hover,
.cb-shell-nav a.is-active {
  color: var(--cb-text);
}

.cb-shell-cta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-left: auto;
  flex-wrap: wrap;
}

.cb-shell-cta .cb-auth-controls,
.cb-shell-cta [data-cb-auth] {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.cb-shell-cta .cb-auth-email {
  max-width: 160px;
  overflow: hidden;
  color: var(--cb-muted);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cb-shell-auth-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--cb-border);
  color: var(--cb-text);
  border-radius: 10px;
  padding: 8px 12px;
  font: 600 14px/1 var(--cb-font);
  cursor: pointer;
  white-space: nowrap;
  gap: 8px;
}

.cb-shell-auth-icon {
  display: block;
  flex: 0 0 auto;
  color: var(--cb-text);
  fill: currentColor;
}

.cb-shell-auth-toggle-label {
  display: inline;
}

.cb-shell-cta .btn,
.cb-shell-header .btn {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 8px 16px;
  font: 600 14px/1 var(--cb-font);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}

.cb-shell-cta .btn-primary,
.cb-shell-header .btn-primary {
  background: var(--cb-accent);
  border-color: var(--cb-accent);
  color: #fff;
}

.cb-shell-cta .btn-primary:hover,
.cb-shell-header .btn-primary:hover {
  background: var(--cb-accent-strong);
  border-color: var(--cb-accent-strong);
  color: #fff;
}

.cb-shell-cta .btn-ghost,
.cb-shell-header .btn-ghost {
  background: transparent;
  border-color: var(--cb-border);
  color: var(--cb-text);
}

.cb-shell-cta .btn-ghost:hover,
.cb-shell-header .btn-ghost:hover {
  background: var(--cb-accent-soft);
  border-color: var(--cb-accent);
  color: var(--cb-text);
}

.cb-shell-footer {
  border-top: 1px solid var(--cb-border-soft);
  padding: 28px 0;
  background: var(--cb-bg);
}

.cb-shell-footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.cb-shell-apps {
  position: relative;
}

.cb-shell-apps-toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 6px 8px;
  margin: -6px -8px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--cb-muted);
  font: 600 13.5px/1 var(--cb-font);
  cursor: pointer;
}

.cb-shell-apps-toggle img {
  width: 20px;
  height: 20px;
  display: block;
}

.cb-shell-apps-toggle:hover,
.cb-shell-apps.is-open .cb-shell-apps-toggle,
.cb-shell-apps:focus-within .cb-shell-apps-toggle {
  color: var(--cb-text);
  background: var(--cb-accent-soft);
}

.cb-shell-menu {
  display: none;
  position: absolute;
  left: 0;
  bottom: calc(100% + 8px);
  min-width: 200px;
  margin: 0;
  padding: 8px;
  list-style: none;
  border: 1px solid var(--cb-border);
  border-radius: var(--cb-radius);
  background: var(--cb-card);
  box-shadow: 0 16px 32px rgba(25, 28, 26, 0.14);
  z-index: 60;
}

.cb-shell-apps:hover .cb-shell-menu,
.cb-shell-apps:focus-within .cb-shell-menu,
.cb-shell-apps.is-open .cb-shell-menu {
  display: grid;
  gap: 2px;
}

.cb-shell-menu a {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--cb-text);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.cb-shell-menu a:hover,
.cb-shell-menu a:focus-visible {
  background: var(--cb-accent-soft);
  color: var(--cb-accent-strong);
}

.cb-shell-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 20px;
  font-size: 13.5px;
}

.cb-shell-links a {
  color: var(--cb-faint);
  text-decoration: none;
}

.cb-shell-links a:hover {
  color: var(--cb-text);
}

@media (max-width: 820px) {
  .cb-shell-header .wrap,
  .cb-shell-footer .wrap {
    width: min(100% - 32px, var(--cb-wrap));
  }

  .cb-shell-nav {
    display: none;
  }

  .cb-shell-cta {
    gap: 8px;
  }

  .cb-shell-auth-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .cb-shell-auth-toggle-label {
    display: none;
  }

  .cb-shell-auth {
    display: none;
  }

  .cb-shell-header.cb-auth-open .cb-shell-auth {
    display: flex;
    position: absolute;
    top: calc(100% + 8px);
    right: 16px;
    background: var(--cb-card);
    border: 1px solid var(--cb-border);
    border-radius: 12px;
    padding: 12px;
    box-shadow: 0 16px 32px rgba(25, 28, 26, 0.16);
    z-index: 80;
  }

  .cb-shell-header.is-open .cb-shell-nav {
    display: flex;
    position: absolute;
    top: calc(100% + 8px);
    right: 16px;
    width: min(280px, calc(100vw - 32px));
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    border: 1px solid var(--cb-border);
    border-radius: 12px;
    background: var(--cb-card);
    padding: 12px;
    box-shadow: 0 16px 32px rgba(25, 28, 26, 0.16);
  }

  .cb-shell-cta .cb-auth-email {
    max-width: 110px;
  }
}