:root {
    --teal-50: #f0fdfa;
    --teal-100: #ccfbf1;
    --teal-600: #2D8AEFFF;
    --teal-700: #0f766e;
    --primary-btn: #2b82df;
    --primary-btn-hover: #0f4976;
}

/*body {*/
/*    font-family: "Inter", sans-serif;*/
/*    background-color: #f8f9fa;*/
/*}*/

.bg-teal-50 {
    background-color: var(--teal-50);
}

.bg-teal-100 {
    background-color: var(--teal-100);
}

.bg-teal-600 {
    background-color: var(--teal-600);
}

.bg-teal-700 {
    background-color: var(--teal-700);
}

.text-teal-600 {
    color: var(--teal-600);
}

.text-teal-700 {
    color: var(--teal-700);
}

.btn-teal {
    background-color: var(--primary-btn);
    border-color: var(--primary-btn);
    color: white;
}

.btn-teal:hover {
    background-color: var(--primary-btn-hover);
    border-color: var(--primary-btn-hover);
    color: white;
}

.hero-gradient {
    background: linear-gradient(to bottom, var(--teal-50), white);
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.25rem;
}

.feature-icon {
    font-size: 2rem;
    color: var(--teal-600);
}

.sticky-top {
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.navbar-nav .nav-link {
    position: relative;
    color: #000; /* màu chữ mặc định */
    transition: color 0.3s ease;
}

.navbar-nav .nav-link::after {
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #0d6efd; /* màu gạch chân khi hover (xanh Bootstrap) */
    transition: width 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: #0d6efd;
}

.navbar-nav .nav-link:hover::after {
    width: 100%;
}

.navbar-nav .nav-link:active {
    background-color: rgba(13, 110, 253, 0.1);
    color: #0d6efd;
}

.navbar-nav .nav-link.active {
    color: #0d6efd;
    font-weight: bold;

}