/* ===== Unified navbar stylesheet ===== */
:root {
  --nav-height-mobile:80px; /* <-- Giảm từ 122px */
  --nav-height-tablet:90px; /* <-- Giảm từ 168px */
  --nav-logo-mobile:100px; /* <-- Giảm từ 122px */
  --nav-logo-tablet:120px; /* <-- Giảm từ 176px */
  --nav-horizontal-padding-mobile: 30px;
  --nav-horizontal-padding-tablet: 50px;
  /* ...các biến khác... */
}



* {
  box-sizing: border-box;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: var(--nav-height-mobile);
  padding: 0 var(--nav-horizontal-padding-mobile);
  background-color: var(--bg-primary, #ffffff);
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
  box-shadow: var(--nav-shadow);
  z-index: 999;
  font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, sans-serif;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: transparent;
}

.nav-left a {
  display: flex;
  align-items: center;
  gap: 16px;
  text-decoration: none;
  color: inherit;
  /* transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.25s ease; */
}

.nav-left a:hover {
  /* opacity: 0.85; */
  /* transform: translateY(-2px); */
}

.nav-left a:focus-visible {
  outline: 3px solid var(--accent-primary, #2563eb);
  outline-offset: 6px;
}

.nav-logo {
  height: var(--nav-logo-mobile);
  width: auto;
  display: block;
  object-fit: contain;
}

.brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary, #0f172a);
  white-space: nowrap;
}

.nav-menu {
  display: none;
}

.nav-item {
  font-size: 15px;
  color: var(--text-secondary, #475569);
  cursor: pointer;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sign-in-btn {
  /* Style giống SmallPDF: Xanh solid, Bo góc nhẹ, Phẳng */
  background: #2b50dd; /* Màu xanh đặc trưng SmallPDF */
  color: #ffffff;
  border: none;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 700; /* Chữ đậm */
  border-radius: 8px; /* Bo góc vuông hơn */
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1); /* Bóng đen nhẹ tinh tế */
  transition: all 0.2s ease;
}

.sign-in-btn:hover {
  /* Giữ nguyên màu khi hover (theo yêu cầu tắt hover) */
  background: #2b50dd !important; 
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1) !important;
  transform: none !important;
  opacity: 1 !important;
}

.sign-in-btn:active {
  background: #2b50dd !important;
  transform: none !important;
}

.settings-icon-wrapper {
  margin-left: 8px;
}

body.dark-mode .navbar {
  background-color: var(--bg-secondary, #1f2937) !important;
  border-bottom-color: rgba(100, 116, 139, 0.35) !important;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.55) !important;
}

body.dark-mode .nav-item,
body.dark-mode .brand {
  color: var(--text-primary, #f8fafc) !important;
}



body.dark-mode .sign-in-btn {
  background: #3b82f6; /* Xanh sáng hơn cho Dark Mode */
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

body.dark-mode .sign-in-btn:hover {
  background: #3b82f6 !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3) !important;
  transform: none !important;
}

@media (min-width: 768px) {
  .navbar {
    height: var(--nav-height-tablet);
    padding: 0 var(--nav-horizontal-padding-tablet);
  }

  .nav-logo {
    height: var(--nav-logo-tablet);
  }

  .nav-menu {
    display: flex;
    gap: 24px;
  }

  .sign-in-btn {
    font-size: 16px;
    padding: 12px 26px;
  }
}

/* ... existing content ... */

/* Premium Navigation Button */
.premium-nav-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background-color: #f2db80;
  border: 1px solid #f59e0b;
  color: #b45309;
  border-radius: 4px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 14px;
}

.premium-nav-btn:hover {
  opacity: 1 !important; /* Không làm mờ */
  transform: none !important;
  box-shadow: none !important;
  background-color: #f2db80 !important; /* Giữ nguyên màu nền gốc */
  color: #b45309 !important; /* Giữ nguyên màu chữ gốc */
  border-color: #f59e0b !important; /* Giữ nguyên màu viền gốc */
}

@media (min-width: 1280px) {
  .navbar {
    padding: 0 calc(var(--nav-horizontal-padding-tablet) + 12px);
  }
}

/* =========================================
   NOTIFICATION DOT STYLES (Merged)
   ========================================= */
.notification-dot {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 10px;
    height: 10px;
    background-color: #ef4444; /* Tailwind red-500 */
    border: 2px solid #ffffff;
    border-radius: 50%;
    z-index: 10;
    display: none; /* Hidden by default */
    pointer-events: none;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.notification-dot.active {
    display: inline-block !important; /* Force show */
}

/* Specific adjustments for inline dots (Menu, Sidebar) */
.inline-dot {
    position: relative !important; /* Reset absolute */
    top: auto !important;
    right: auto !important;
    width: 8px !important;
    height: 8px !important;
    border: none !important;
    margin-left: 8px !important;
    background-color: #ff3e3e !important;
    box-shadow: none !important;
    flex-shrink: 0; /* Prevent shrinking in flex container */
    vertical-align: middle;
}

/* Wrapper adjustments */
.settings-icon-wrapper {
    position: relative;
}

.settings-icon-wrapper .notification-dot {
    top: 0;
    right: 0;
}