/* ═══════════════════════════════════════
   UNIVERSITY NOTES — NAVBAR
   Single source of truth, no duplicates
═══════════════════════════════════════ */

#unique-navbar * { box-sizing: border-box; margin: 0; padding: 0; }
#unique-navbar a { text-decoration: none !important; }

/* ── Base nav ── */
#unique-navbar nav {
  background: #0b6ef6;
  position: sticky;
  top: 0;
  z-index: 9000;
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
  overflow: visible;
}

#unique-navbar .navbar {
  display: flex;
  align-items: center;
  padding: 0 14px;
  height: 58px;
  gap: 10px;
  position: relative;
  overflow: visible;
}

/* ── Logo ── */
#unique-navbar .logo { flex-shrink: 0; }
#unique-navbar .logo a { display: inline-flex; align-items: center; text-decoration: none; }
#unique-navbar .logo img { height: 42px; width: auto; object-fit: contain; display: block; border-radius: 6px; }

/* ── Nav list (mobile-first: vertical drawer) ── */
#unique-navbar #nav {
  list-style: none;
  position: absolute;
  top: 58px; left: 0;
  width: 100%;
  background: #0b6ef6;
  display: flex;
  flex-direction: column;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, box-shadow 0.2s;
  z-index: 9001;
}

#unique-navbar #nav.active {
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
  -webkit-overflow-scrolling: touch;
}

/* L0 items */
#unique-navbar #nav > li { width: 100%; border-bottom: 1px solid rgba(255,255,255,0.08); }
#unique-navbar #nav > li:last-child { border-bottom: none; }

#unique-navbar #nav > li > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  color: white !important;
  font-size: 0.97rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s;
  -webkit-tap-highlight-color: rgba(255,255,255,0.1);
}
#unique-navbar #nav > li > a:hover,
#unique-navbar #nav > li > a:active { background: rgba(255,255,255,0.1); color: yellow !important; }

#unique-navbar .dropdown-toggle { cursor: pointer; user-select: none; }

/* ── Hamburger ── */
#unique-navbar .hamburger {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px 4px;
  border-radius: 6px;
  transition: background 0.2s;
  -webkit-tap-highlight-color: rgba(255,255,255,0.15);
}
#unique-navbar .hamburger:hover { background: rgba(255,255,255,0.12); }
#unique-navbar .hamburger div {
  width: 24px; height: 2.5px;
  background: white;
  border-radius: 2px;
  transition: all 0.25s ease;
  transform-origin: center;
}
#unique-navbar .hamburger.open div:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
#unique-navbar .hamburger.open div:nth-child(2) { opacity: 0; transform: scaleX(0); }
#unique-navbar .hamburger.open div:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ══════════════════════════════════════════
   MOBILE  (≤ 768px)
══════════════════════════════════════════ */
@media (max-width: 768px) {

  /* L1 dropdown */
  #unique-navbar .dropdown {
    display: none;
    list-style: none;
    background: rgba(0,0,0,0.15);
    width: 100%;
    border-top: 1px solid rgba(255,255,255,0.08);
    position: static;
  }
  #unique-navbar .dropdown.active { display: block; }
  #unique-navbar .dropdown > li { border-bottom: 1px solid rgba(255,255,255,0.06); }
  #unique-navbar .dropdown > li:last-child { border-bottom: none; }
  #unique-navbar .dropdown > li > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px 12px 28px;
    color: rgba(255,255,255,0.9) !important;
    font-size: 0.93rem;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.15s;
  }
  #unique-navbar .dropdown > li > a:hover { background: rgba(255,255,255,0.08); color: yellow !important; }

  /* L2 flyout arrow */
  #unique-navbar .has-flyout > a .arr { font-size: 1.1rem; opacity: 0.6; transition: transform 0.2s; }
  #unique-navbar .has-flyout.open > a .arr { transform: rotate(90deg); opacity: 1; }

  /* L2 flyout */
  #unique-navbar .flyout {
    display: none;
    list-style: none;
    background: rgba(0,0,0,0.12);
    border-top: 1px solid rgba(255,255,255,0.06);
  }
  #unique-navbar .flyout.open { display: block; }
  #unique-navbar .flyout li { border-bottom: 1px solid rgba(255,255,255,0.05); }
  #unique-navbar .flyout li:last-child { border-bottom: none; }
  #unique-navbar .flyout li a {
    display: block;
    padding: 10px 20px 10px 44px;
    color: rgba(255,255,255,0.78) !important;
    font-size: 0.87rem;
    text-decoration: none;
    transition: background 0.12s;
  }
  #unique-navbar .flyout li a::before { content: "– "; opacity: 0.5; }
  #unique-navbar .flyout li a:hover { background: rgba(255,255,255,0.08); color: yellow !important; }

  /* Divider */
  #unique-navbar .dd-divider { height: 1px; background: rgba(255,255,255,0.1); margin: 4px 0; }

  /* Profile dropdown — fixed below navbar */
  #unique-navbar #profileDropdown {
    position: fixed !important;
    top: 66px !important;
    right: 12px !important;
    left: auto !important;
    width: calc(100vw - 24px) !important;
    max-width: 320px !important;
    max-height: calc(100vh - 80px) !important;
    overflow-y: auto !important;
  }

  /* Profile hover — disabled on mobile (click only) */
  #unique-navbar #profileMenu:hover #profileDropdown,
  #unique-navbar #profileMenu #profileDropdown:hover { display: none !important; }
}

/* ══════════════════════════════════════════
   DESKTOP  (≥ 769px)
══════════════════════════════════════════ */
@media (min-width: 769px) {

  #unique-navbar .hamburger { display: none !important; }

  /* Horizontal nav */
  #unique-navbar #nav {
    display: flex !important;
    position: static !important;
    flex-direction: row !important;
    background: transparent !important;
    box-shadow: none !important;
    gap: 2px;
    align-items: center;
    flex: 1;
    justify-content: flex-end;
    padding: 0;
    margin-right: 10px;
    max-height: none !important;
    overflow: visible !important;
    transition: none !important;
    z-index: auto;
  }

  #unique-navbar #nav > li {
    border: none !important;
    width: auto !important;
    position: relative;
  }

  #unique-navbar #nav > li > a {
    padding: 7px 11px !important;
    font-size: 0.88rem !important;
    border-radius: 6px;
    white-space: nowrap;
    color: white !important;
    transition: background 0.15s, color 0.15s !important;
  }
  #unique-navbar #nav > li > a:hover { background: rgba(255,255,255,0.15) !important; color: yellow !important; }

  /* ── L1 Dropdown — blue card ── */
  #unique-navbar .dropdown {
    display: none !important;
    position: absolute !important;
    top: 100% !important;
    left: 0 !important;
    background: #0b6ef6 !important;
    border-radius: 10px !important;
    box-shadow: 0 10px 36px rgba(0,0,0,0.22) !important;
    padding: 6px 0 !important;
    z-index: 9100 !important;
    list-style: none;
    min-width: 175px;
    border: 1px solid rgba(255,255,255,0.15) !important;
  }

  #unique-navbar .dropdown-parent:hover > .dropdown,
  #unique-navbar .dropdown-parent .dropdown.active { display: block !important; }

  #unique-navbar .dropdown > li {
    border: none !important;
    width: 100% !important;
    position: relative;
    border-bottom: 1px solid rgba(255,255,255,0.06) !important;
  }
  #unique-navbar .dropdown > li:last-child { border-bottom: none !important; }

  #unique-navbar .dropdown > li > a {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px !important;
    font-size: 0.875rem !important;
    color: rgba(255,255,255,0.9) !important;
    text-decoration: none;
    transition: background 0.12s;
    white-space: nowrap;
    gap: 12px;
    font-weight: 400;
  }
  #unique-navbar .dropdown > li > a::before { content: "" !important; }
  #unique-navbar .dropdown > li > a:hover { background: rgba(255,255,255,0.12) !important; color: yellow !important; }

  /* has-flyout arrow */
  #unique-navbar .has-flyout > a .arr { color: rgba(255,255,255,0.5); font-size: 1rem; }
  #unique-navbar .has-flyout:hover > a { background: rgba(255,255,255,0.12) !important; color: yellow !important; }
  #unique-navbar .has-flyout:hover > a .arr { color: yellow; }

  /* ── L2 Flyout — blue panel, right side ── */
  #unique-navbar .flyout {
    display: none !important;
    position: absolute !important;
    top: -6px !important;
    left: 100% !important;
    background: #0b6ef6 !important;
    border-radius: 10px !important;
    box-shadow: 0 10px 36px rgba(0,0,0,0.22) !important;
    padding: 6px 0 !important;
    z-index: 9200 !important;
    list-style: none;
    min-width: 195px;
    border: 1px solid rgba(255,255,255,0.15) !important;
  }

  #unique-navbar .has-flyout:hover > .flyout { display: block !important; }

  #unique-navbar .flyout li {
    border: none !important;
    width: 100% !important;
    border-bottom: 1px solid rgba(255,255,255,0.06) !important;
  }
  #unique-navbar .flyout li:last-child { border-bottom: none !important; }

  #unique-navbar .flyout li a {
    display: block;
    padding: 10px 16px !important;
    font-size: 0.875rem !important;
    color: rgba(255,255,255,0.9) !important;
    text-decoration: none;
    transition: background 0.12s;
    white-space: nowrap;
    font-weight: 400;
  }
  #unique-navbar .flyout li a::before { content: "" !important; }
  #unique-navbar .flyout li a:hover { background: rgba(255,255,255,0.12) !important; color: yellow !important; }

  /* Divider */
  #unique-navbar .dd-divider { height: 1px !important; background: rgba(255,255,255,0.12) !important; margin: 4px 0 !important; padding: 0 !important; border: none !important; }

  /* ── Profile dropdown — hover open ── */
  #unique-navbar #profileMenu { position: relative; }

  #unique-navbar #profileDropdown {
    display: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
    opacity: 0;
    transform: translateY(10px);
  }

  #unique-navbar #profileMenu:hover > #profileDropdown,
  #unique-navbar #profileMenu #profileDropdown:hover,
  #unique-navbar #profileMenu.active #profileDropdown {
    display: block !important;
    opacity: 1 !important;
    transform: translateY(0) !important;
  }

  /* invisible bridge to prevent hover gap */
  #unique-navbar #profileMenu::after {
    content: '';
    position: absolute;
    left: 0; right: 0;
    bottom: -8px;
    height: 10px;
    background: transparent;
    z-index: 9299;
  }
}

/* ── Profile menu (shared) ── */
#unique-navbar #profileMenu {
  display: inline-flex !important;
  align-items: center;
  flex-shrink: 0;
  margin-left: auto;
  z-index: 9300;
}
#unique-navbar .profile-menu { display: inline-flex !important; align-items: center; gap: 6px; }

#unique-navbar .profile-trigger {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 10px; border-radius: 8px; cursor: pointer;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.25);
  color: white; transition: background 0.2s; text-decoration: none;
}
#unique-navbar .profile-trigger:hover { background: rgba(255,255,255,0.22); transform: translateY(-1px); }
#unique-navbar .profile-trigger i { font-size: 22px; color: #ffcc00; }
#unique-navbar .profile-trigger .username-text {
  color: white; font-weight: 600; font-size: 0.9rem;
  white-space: nowrap; max-width: 110px; overflow: hidden; text-overflow: ellipsis;
}
#unique-navbar .user-greeting {
  color: #ffcc00; font-weight: 600; font-size: 0.9rem;
  display: flex; align-items: center; gap: 5px; white-space: nowrap;
}
#unique-navbar .user-greeting i { font-size: 1.1em; }

#unique-navbar .login-btn {
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.45);
  color: #fff; padding: 6px 12px; border-radius: 6px;
  font-size: 0.85rem; font-weight: 600;
  display: flex; align-items: center; gap: 6px;
  text-decoration: none; white-space: nowrap; transition: background 0.2s;
}
#unique-navbar .login-btn:hover { background: rgba(255,255,255,0.22); }

#unique-navbar .logout-btn {
  background: rgba(255,107,107,0.15); color: #ff6b6b;
  border: 1px solid rgba(255,107,107,0.35);
  padding: 6px 12px; border-radius: 6px;
  font-size: 0.85rem; font-weight: 600;
  display: flex; align-items: center; gap: 6px;
  text-decoration: none; cursor: pointer; transition: background 0.2s;
  min-width: 80px; justify-content: center;
}
#unique-navbar .logout-btn:hover { background: rgba(255,107,107,0.28); color: #ff5252; }

#unique-navbar #profileDropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px); right: 0;
  background: white; border: 1px solid #e5e7eb; border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  width: 300px; max-width: calc(100vw - 24px);
  z-index: 9400; overflow: hidden;
  max-height: 80vh; overflow-y: auto;
}

/* ── Skeleton ── */
#unique-navbar .skeleton-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
#unique-navbar .skeleton-box {
  background: linear-gradient(90deg,#e5e7eb 25%,#f3f4f6 50%,#e5e7eb 75%);
  background-size: 200% 100%;
  animation: navSkel 1.5s infinite;
  border-radius: 6px;
}
@keyframes navSkel { 0%{background-position:200% 0} 100%{background-position:-200% 0} }
#unique-navbar .profile-dropdown-skeleton { padding: 20px 15px; }
#unique-navbar .profile-dropdown-skeleton .skeleton-title { width: 140px; height: 16px; border-radius: 6px; margin-bottom: 20px; }
#unique-navbar .profile-dropdown-skeleton .skeleton-btn { width: 100%; height: 38px; border-radius: 8px; margin-top: 8px; }

/* ── Very small phones (≤ 360px) ── */
@media (max-width: 360px) {
  #unique-navbar .navbar { padding: 0 10px; height: 54px; }
  #unique-navbar .logo img { height: 36px; }
  #unique-navbar #nav { top: 54px; }
  #unique-navbar .login-btn span { display: none; }
  #unique-navbar .login-btn { padding: 6px 8px; }
}

.not-logged-in #profileMenu .login-btn { display: flex; }