/* ============================================================
   Meeplebay Design System — Navbar
   ============================================================ */

/* ── Header shell ── */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  height: var(--header-height);
  background-color: var(--navbar-bg);
  border-bottom: var(--navbar-border);
  box-shadow: var(--shadow-xs);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad-x);
  gap: var(--space-6);
}

/* ── Brand / logo ── */

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  flex-shrink: 0;
}

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-brand-500);
  color: var(--text-inverse);
  border-radius: var(--radius-button);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  text-transform: lowercase;
  line-height: 1;
  user-select: none;
}

.brand-name {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* ── Nav ── */

.nav {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: flex-end;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-right > a:not(.btn):not(.nav-icon-link) {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-button);
  transition: color var(--motion-fast) var(--motion-ease), background-color var(--motion-fast) var(--motion-ease);
  text-decoration: none;
}

.nav-right > a:not(.btn):not(.nav-icon-link):hover {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
}

/* ── Icon links ── */

.nav-icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-gray-600);
  border-radius: var(--radius-button);
  transition: color var(--motion-fast) var(--motion-ease), background-color var(--motion-fast) var(--motion-ease);
  text-decoration: none;
}

.nav-icon-link svg {
  width: 20px;
  height: 20px;
}

.nav-icon-link:hover {
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
}

.nav-icon-button {
  border: 0;
  background: transparent;
  cursor: pointer;
}

.nav-notification-wrap {
  position: relative;
}

.nav-notification-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 12px;
  height:12px;
  border-radius: 50%;
  background: var(--color-danger-500);
  border: 2px solid var(--bg-primary);
}

.nav-notification-badge.is-hidden {
  display: none;
}

.nav-notification-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: -180px;
  width: 260px;
  max-width: min(92vw, 320px);
  background: var(--bg-primary);
  border: var(--border-light);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-md);
  z-index: 260;
  overflow: hidden;
}

.nav-notification-list {
  display: flex;
  flex-direction: column;
  max-height: 300px;
  overflow: auto;
}

.nav-notification-item {
  padding: var(--space-3) var(--space-4);
  border-bottom: var(--border-light);
  text-decoration: none;
  color: inherit;
  display: block;
}

.nav-notification-item:last-child {
  border-bottom: 0;
}

.nav-notification-item:hover {
  background: var(--bg-secondary);
}

.nav-notification-item.is-unread {
  background: var(--color-brand-100);
}

.nav-notification-item.is-unread:hover {
  background: color-mix(in srgb, var(--color-brand-300) 80%, var(--bg-secondary) 20%);
}

.nav-notification-name {
  margin: 0;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-primary);
}

.nav-notification-preview {
  margin: var(--space-1) 0 0;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-notification-empty {
  padding: var(--space-4);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  text-align: center;
}

.nav-notification-footer {
  display: block;
  padding: var(--space-3) var(--space-4);
  border-top: var(--border-light);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  text-decoration: none;
  background: var(--bg-secondary);
}

.nav-notification-footer:hover {
  background: var(--bg-tertiary);
}

/* ── Auth buttons area ── */

.auth-buttons {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: var(--space-2);
}

/* ── Create listing button ── */

.nav-create-listing {
  margin-left: var(--space-2);
}

/* ── User menu ── */

.user-menu {
  position: relative;
  margin-left: var(--space-2);
}

.user-avatar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  height: 36px;
  padding: 0 var(--space-2);
  border-radius: var(--radius-button);
  background: none;
  border: none;
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--motion-ease);
}

.user-avatar:hover {
  background-color: var(--bg-tertiary);
}

.user-avatar img {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-pill);
  object-fit: cover;
  border: var(--border-light);
}

.username {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.arrow svg {
  width: 18px;
  height: 18px;
  color: var(--color-gray-600);
  transition: transform var(--motion-fast) var(--motion-ease);
}

/* ── Dropdown ── */

.dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 200px;
  background-color: var(--bg-primary);
  border: var(--border-light);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-md);
  padding: var(--space-2) 0;
  z-index: 200;
}

.dropdown li a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-regular);
  color: var(--text-secondary);
  text-decoration: none;
  transition: background-color var(--motion-fast) var(--motion-ease), color var(--motion-fast) var(--motion-ease);
}

.dropdown li a:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.dropdown .divider {
  border: none;
  border-top: var(--border-light);
  margin: var(--space-1) 0;
}

/* ── Hamburger (mobile) ── */

.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: var(--font-size-xl);
  color: var(--text-primary);
  background: none;
  border: none;
  border-radius: var(--radius-button);
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--motion-ease);
}

.hamburger:hover {
  background-color: var(--bg-tertiary);
}

/* ── Responsive ── */

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-right {
    display: none;
    position: fixed;
    inset: var(--header-height) 0 0 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background-color: var(--bg-primary);
    border-top: var(--border-light);
    padding: var(--space-4);
    overflow-y: auto;
    z-index: 99;
  }

  .nav-right.is-open {
    display: flex;
  }

  .nav-right > a:not(.btn):not(.nav-icon-link) {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-button);
  }

  .nav-icon-link {
    width: 100%;
    justify-content: flex-start;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-button);
    gap: var(--space-3);
  }

  .auth-buttons {
    width: 100%;
    flex-direction: column;
    margin-left: 0;
    padding-top: var(--space-4);
    border-top: var(--border-light);
    gap: var(--space-2);
  }

  .auth-buttons .btn {
    width: 100%;
    justify-content: center;
  }

  .user-menu {
    width: 100%;
    margin-left: 0;
    padding-top: var(--space-4);
    border-top: var(--border-light);
  }

  .nav-create-listing {
    width: 100%;
    margin-left: 0;
    margin-top: var(--space-2);
    justify-content: center;
  }
}