/* ==================================================
   Nav Tabs in Navbar
   ================================================== */
.nav-tabs {
    border-bottom: none !important;
}

.nav-tabs .nav-link {
    color: rgba(255,255,255,0.85);
    border: none;
    border-bottom: 3px solid transparent;
    background: transparent;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
}

.nav-tabs .nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.1);
    border-bottom-color: rgba(255,255,255,0.3);
}

.nav-tabs .nav-link.active {
    color: #fff !important;
    background: rgba(255,255,255,0.15);
    border-bottom-color: #ffc107;
    font-weight: 600;
}

@media (max-width: 767px) {
    .nav-tabs .nav-link {
        padding: 0.5rem 0.75rem;
    }
}

/* ==================================================
   Navbar Mobile Enhancements
   ================================================== */

/* Mobile: แสดงเมนูเป็นแนวตั้ง */
@media (max-width: 991px) {
    .navbar-collapse {
        background: rgba(13, 110, 253, 0.95);
        padding: 1rem;
        border-radius: 8px;
        margin-top: 10px;
    }
    
    .nav-tabs {
        flex-direction: column;
        width: 100%;
    }
    
    .nav-tabs .nav-item {
        width: 100%;
    }
    
    .nav-tabs .nav-link {
        border: none;
        border-left: 3px solid transparent;
        border-radius: 0;
        padding: 0.75rem 1rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
    
    .nav-tabs .nav-link.active {
        border-left-color: #ffc107;
        background: rgba(255, 255, 255, 0.15);
        border-bottom: none;
    }
    
    .navbar-nav.ms-auto {
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid rgba(255, 255, 255, 0.2);
    }
}

/* ซ่อนข้อความในมือถือเล็ก */
@media (max-width: 575px) {
    .nav-link span {
        display: inline !important;
    }
}