/* ============================================
   R.I.T.H.M - Navbar Styles
   ============================================ */

.navbar {
  background: var(--bg-navbar);
  border-bottom: 1px solid var(--border-color);
  padding: 0.5rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: background 0.3s ease, border-color 0.3s ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Slightly transparent bg for blur effect */
.navbar.scrolled {
  background: rgba(26, 29, 27, 0.92);
}

[data-theme="light"] .navbar.scrolled {
  background: rgba(248, 246, 240, 0.92);
}

.navbar .container {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}

.navbar-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  text-decoration: none;
  padding: 0.5rem 0;
  margin-right: 1.5rem;
  color: var(--primary);
  letter-spacing: -0.02em;
}

/* ── Hamburger Toggle ────────────────────── */

.navbar-toggler {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.4rem 0.6rem;
  cursor: pointer;
  margin-left: auto;
}

.navbar-toggler-icon {
  display: block;
  width: 1.5em;
  height: 1.5em;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(237,237,239,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 100%;
}

[data-theme="light"] .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(27,27,30,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ── Nav Collapse Container ──────────────── */

.navbar-collapse {
  display: flex;
  align-items: center;
  flex-grow: 1;
}

/* ── Nav Links ───────────────────────────── */

.navbar-nav {
  display: flex;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-grow: 1;
  gap: 0.125rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 0.5rem 0.625rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: 6px;
  transition: color 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

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

/* ── Dropdown ────────────────────────────── */

.dropdown-toggle::after {
  content: '';
  display: inline-block;
  margin-left: 0.3em;
  vertical-align: 0.15em;
  border-top: 0.25em solid;
  border-right: 0.25em solid transparent;
  border-left: 0.25em solid transparent;
  transition: transform 0.15s ease;
}

.nav-item.dropdown.open > .dropdown-toggle::after {
  transform: rotate(180deg);
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 1001;
  min-width: 200px;
  padding: 0.375rem 0;
  margin-top: 0.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--shadow-dropdown);
  list-style: none;
}

.nav-item.dropdown.open > .dropdown-menu {
  display: block;
}

.dropdown-item {
  display: block;
  padding: 0.4rem 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: background 0.1s ease, color 0.1s ease;
}

.dropdown-item:hover {
  background: var(--input-bg);
  color: var(--text-primary);
}

.dropdown-divider {
  height: 0;
  margin: 0.375rem 0;
  overflow: hidden;
  border-top: 1px solid var(--border-color);
}

/* Active nav link */
.nav-link.active {
  color: var(--primary);
  background: var(--surface-primary);
}

/* ── Auth Links ──────────────────────────── */

.navbar-auth {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  margin-right: 0.5rem;
}

.navbar-auth .nav-item.dropdown {
  position: relative;
}

.navbar-signup-btn {
  font-weight: 500;
  padding: 0.4rem 1rem;
  border-radius: 6px;
  white-space: nowrap;
}

.navbar-auth .dropdown-menu {
  right: 0;
  left: auto;
}

.navbar-auth .dropdown-item i {
  width: 1.25em;
  margin-right: 0.35em;
}

/* ── Friend Requests Badge ───────────────── */

.navbar-friend-requests {
  position: relative;
  display: flex;
  align-items: center;
  padding: 0.5rem 0.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1rem;
  border-radius: 6px;
  transition: color 0.15s ease, background 0.15s ease;
}

.navbar-friend-requests:hover {
  color: var(--text-primary);
  background: var(--input-bg);
}

.navbar-badge {
  position: absolute;
  top: 2px;
  right: 0;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  background: var(--danger, #ef4444);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
}

/* ── Theme Toggle Button ─────────────────── */

.navbar-theme-toggle {
  margin-left: 0;
}

/* ── Responsive: Mobile ──────────────────── */

@media (max-width: 991.98px) {
  .navbar-toggler {
    display: block;
  }

  .navbar-collapse {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 0.75rem;
    padding-bottom: 0.5rem;
  }

  .navbar-collapse.open {
    display: flex;
  }

  .navbar-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link {
    padding: 0.6rem 0.75rem;
  }

  /* Mobile dropdowns: inline expand */
  .dropdown-menu {
    position: static;
    margin-top: 0;
    border: none;
    box-shadow: none;
    background: transparent;
    padding: 0 0 0 1rem;
    border-radius: 0;
  }

  .dropdown-item {
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
  }

  .navbar-auth {
    flex-direction: row;
    align-items: center;
    margin-left: 0;
    margin-top: 0.5rem;
    gap: 0.5rem;
  }

  .navbar .btn {
    align-self: flex-start;
    margin-top: 0.5rem;
  }
}