/* CSS dành riêng cho header và footer dùng chung toàn site */

.navbar {
    height: 60px;
    min-height: 60px;
    padding-top: 0;
    padding-bottom: 0;
    padding-left: 0;
    box-shadow: 0 2px 16px #0002;
    border-radius: 0;
    margin-top: 0;
    margin-bottom: 0;
    background: #101828 !important;
}
.navbar .container { align-items: center; border-radius: 0; }
.navbar-brand { display: flex; align-items: center; }
.navbar .navbar-brand img {
    height: 50px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
    margin-right: 0;
}
.navbar-toggler { 
    border: none; 
    background: none; 
    padding: 4px 8px;
    font-size: 0.9rem;
}

/* Mobile responsive improvements for header */
@media (max-width: 575.98px) {
    .navbar {
        height: 50px !important;
        min-height: 50px !important;
        padding: 0 8px !important;
    }
    
    .navbar .navbar-brand img {
        height: 35px !important;
        max-width: 120px !important;
    }
    
    .navbar-toggler {
        padding: 4px 6px !important;
        font-size: 0.85rem !important;
    }
    
    .navbar-nav {
        margin-top: 0.5rem !important;
        padding: 0.5rem 0 !important;
    }
    
    .navbar-nav .nav-link {
        padding: 0.5rem 0 !important;
        font-size: 0.95rem !important;
    }
    
    .dropdown-menu {
        min-width: 200px !important;
        padding: 0.5rem !important;
    }
    
    .dropdown-item {
        padding: 0.5rem 0.75rem !important;
        font-size: 0.9rem !important;
    }
    
    .dropdown-item img {
        width: 28px !important;
        height: 28px !important;
    }
}

@media (min-width: 576px) and (max-width: 767.98px) {
    .navbar {
        height: 55px !important;
        min-height: 55px !important;
    }
    
    .navbar .navbar-brand img {
        height: 55px !important;
        max-width: 180px !important;
    }
}

.navbar-nav .nav-link { color: #ffffff !important; transition: color 0.3s ease; }
.navbar-nav .nav-link:hover { color: #FFD600 !important; }
.navbar-nav .nav-link.active { color: #FFD600 !important; }
/* Đảm bảo navbar có background #101828 cho cả dark và light mode */
.navbar { background: #101828 !important; }
body.light-mode .navbar { background: #101828 !important; }
body.light-mode .navbar-nav .nav-link { color: #ffffff !important; }
body.light-mode .navbar-nav .nav-link:hover { color: #FFD600 !important; }
body.light-mode .navbar-nav .nav-link.active { color: #FFD600 !important; }

.footer { color: #cbd5e1; background: #101828 !important; }
.footer .footer-title { color: #FFD600; font-weight: 700; }
.footer-link { color: #cbd5e1; text-decoration: none; }
.footer-link:hover { color: #FFD600; }
body.light-mode .footer { background: #101828 !important; color: #ecf0f1; }

/* Dropdown menu dark mode fix cứng */
.dropdown-menu {
  background: #232946 !important;
  color: #fff !important;
  border-radius: 16px !important;
  box-shadow: 0 8px 32px #0008 !important;
  border: none !important;
  padding: 0.5rem 0.5rem !important;
  min-width: 220px !important;
  opacity: 0;
  transform: translateY(10px) scale(0.98);
  transition: opacity 1s cubic-bezier(.4,0,.2,1), transform 1s cubic-bezier(.4,0,.2,1);
  display: block;
  pointer-events: none;
}
.dropdown-item {
  color: #fff !important;
  background: transparent !important;
  border-radius: 8px !important;
  transition: background 0.15s, color 0.15s;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
}
.dropdown-item img {
  background: #232946 !important;
  border-radius: 50% !important;
  border: 1px solid #444 !important;
  width: 32px !important;
  height: 32px !important;
  object-fit: contain !important;
}
.dropdown-item:hover, .dropdown-item:focus {
  background: #FFD600 !important;
  color: #232946 !important;
}
.dropdown-item:hover img, .dropdown-item:focus img {
  background: #FFD600 !important;
  border-color: #FFD600 !important;
}

.navbar .dropdown.show .dropdown-menu {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* Mobile navigation improvements */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: #101828;
        border-radius: 0.5rem;
        margin-top: 1rem;
        padding: 1rem;
        border: 1px solid #374151;
    }
    
    .navbar-nav {
        margin-bottom: 1rem !important;
    }
    
    .navbar-nav .nav-link {
        padding: 0.75rem 0 !important;
        border-bottom: 1px solid #374151;
        font-size: 1rem !important;
    }
    
    .navbar-nav .nav-link:last-child {
        border-bottom: none;
    }
    
    .dropdown-menu {
        background: transparent !important;
        border: none !important;
        padding-left: 1rem;
        box-shadow: none !important;
        min-width: auto !important;
    }
    
    .dropdown-item {
        color: #ffffff !important;
        padding: 0.5rem 0;
        font-size: 0.95rem !important;
    }
    
    .dropdown-item:hover {
        background: transparent !important;
        color: #FFD600 !important;
    }
    
    .d-flex.align-items-center.gap-2 {
        flex-direction: column;
        gap: 0.5rem !important;
        width: 100%;
    }
    
    .d-flex.align-items-center.gap-2 .btn {
        width: 100%;
        margin: 0;
    }
    
    #theme-toggle {
        align-self: center;
        margin-top: 0.5rem;
    }
}

/* Light mode mobile improvements */
@media (max-width: 991.98px) {
    body.light-mode .navbar-collapse {
        background: #ffffff;
        border: 1px solid #e0e7ef;
    }
    
    body.light-mode .navbar-nav .nav-link {
        color: #2c3e50 !important;
        border-bottom: 1px solid #e0e7ef;
    }
    
    body.light-mode .dropdown-item {
        color: #2c3e50 !important;
    }
    
    body.light-mode .dropdown-item:hover {
        color: #FFD600 !important;
    }
}