/* CasSystem admin header — enterprise */
:root {
  --cs-ink: #0f1c2e;
  --cs-ink-soft: #243447;
  --cs-muted: #6b7c8f;
  --cs-line: rgba(15, 28, 46, 0.08);
  --cs-surface: #ffffff;
  --cs-accent: #0e7c6b;
  --cs-accent-soft: rgba(14, 124, 107, 0.12);
  --cs-bg: #eef1f5;
  --cs-font: "IBM Plex Sans", "Segoe UI", sans-serif;
}

body {
  font-family: var(--cs-font);
  background: var(--cs-bg);
}

.cs-topbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  background: var(--cs-surface);
  border-bottom: 1px solid var(--cs-line);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6), 0 8px 24px rgba(15, 28, 46, 0.04);
}

.cs-topbar__inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.cs-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none !important;
  flex-shrink: 0;
  color: var(--cs-ink) !important;
}

.cs-brand__mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(145deg, #0e7c6b 0%, #0a5c50 100%);
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.cs-brand__text {
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.cs-brand__sub {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--cs-muted);
  margin-top: 1px;
}

.cs-nav {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
  gap: 0.15rem;
}

.cs-nav__scroll {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: wrap;
  flex: 1;
}

.cs-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.7rem;
  border-radius: 6px;
  color: var(--cs-ink-soft) !important;
  text-decoration: none !important;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}

.cs-nav__link:hover {
  background: rgba(15, 28, 46, 0.05);
  color: var(--cs-ink) !important;
}

.cs-nav__link.is-active {
  background: var(--cs-accent-soft);
  color: var(--cs-accent) !important;
  font-weight: 600;
}

.cs-nav__icon {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  opacity: 0.72;
}

.cs-nav__link:hover .cs-nav__icon,
.cs-nav__link.is-active .cs-nav__icon {
  opacity: 1;
}

.cs-nav__divider {
  width: 1px;
  height: 18px;
  background: var(--cs-line);
  margin: 0 0.35rem;
  flex-shrink: 0;
}

.cs-dropdown {
  position: relative;
}

.cs-dropdown__toggle {
  appearance: none;
  border: 0;
  background: transparent;
  cursor: pointer;
  font: inherit;
}

.cs-dropdown__toggle::after {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 0.35rem;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.55;
}

.cs-dropdown__menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 200px;
  padding: 0.35rem;
  background: var(--cs-surface);
  border: 1px solid var(--cs-line);
  border-radius: 10px;
  box-shadow: 0 12px 32px rgba(15, 28, 46, 0.12);
  z-index: 1040;
}

.cs-dropdown.is-open > .cs-dropdown__menu {
  display: block;
}

@media (min-width: 1101px) {
  .cs-dropdown:hover > .cs-dropdown__menu {
    display: block;
  }
}

.cs-dropdown__menu a {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.75rem;
  border-radius: 6px;
  color: var(--cs-ink-soft) !important;
  text-decoration: none !important;
  font-size: 0.8125rem;
  font-weight: 500;
}

.cs-dropdown__menu a:hover {
  background: rgba(15, 28, 46, 0.05);
  color: var(--cs-ink) !important;
}

.cs-dropdown__menu a.is-active {
  background: var(--cs-accent-soft);
  color: var(--cs-accent) !important;
}

.cs-topbar__right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  flex-shrink: 0;
}

.cs-user {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.3rem 0.55rem 0.3rem 0.35rem;
  border-radius: 999px;
  border: 1px solid var(--cs-line);
  background: #f7f9fb;
  color: var(--cs-ink) !important;
  text-decoration: none !important;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
}

.cs-user__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--cs-ink);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 600;
}

.cs-user__name {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cs-dropdown--right .cs-dropdown__menu {
  left: auto;
  right: 0;
}

.cs-burger {
  display: none;
  appearance: none;
  border: 1px solid var(--cs-line);
  background: #fff;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  padding: 0;
}

.cs-burger span {
  display: block;
  width: 16px;
  height: 2px;
  background: var(--cs-ink);
  border-radius: 1px;
}

@media (max-width: 1100px) {
  .cs-burger {
    display: inline-flex;
  }

  .cs-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--cs-surface);
    border-bottom: 1px solid var(--cs-line);
    padding: 0.75rem 1.25rem 1rem;
    box-shadow: 0 12px 24px rgba(15, 28, 46, 0.08);
  }

  .cs-topbar.is-open .cs-nav {
    display: block;
  }

  .cs-nav__scroll {
    flex-direction: column;
    align-items: stretch;
  }

  .cs-nav__divider {
    width: 100%;
    height: 1px;
    margin: 0.4rem 0;
  }

  .cs-dropdown__menu {
    position: static;
    box-shadow: none;
    border: 0;
    padding-left: 0.75rem;
    display: block;
  }

  .cs-user__name {
    display: none;
  }
}