html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
    position: relative;
    min-height: 100%;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: linear-gradient(180deg, #F5F5F5, #D8F8F2);
    color: #121117;
    
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: linear-gradient(90deg, #FAD3E7, #F0F8F6, #C4F0E0);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.logo {
    display: flex;
    align-items: center;
    font-weight: bold;
    font-size: 24px;
    color: #D13D76;
}

    .logo img {
        height: 32px;
        margin-right: 10px;
    }

nav a {
    margin-left: 20px;
    text-decoration: none;
    color: #333;
    font-weight: 500;
}

    nav a:hover {
        color: #D13D76;
    }

.auth a {
    margin-left: 10px;
    text-decoration: none;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 6px;
}

.auth a:first-child {
    color: #D13D76;
    border: 1px solid #D13D76;
}
.auth a:last-child {
   background-color: #D13D76;
   color: white;
}
.auth a {
    margin-left: 10px;
    text-decoration: none;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 6px;
    transition: all 0.3s ease;
}
.auth a:first-child {
        color: #D13D76;
        border: 1px solid #D13D76;
}

.auth a:first-child:hover {
   background-color: #D13D76;
   color: white;
}

.auth a:last-child {
    background-color: #D13D76;
    color: white;
 }
.auth a:last-child:hover {
    background-color: #a82859;
    box-shadow: 0 2px 6px rgba(209, 61, 118, 0.4);
}
footer {

    width: 100%;
    padding: 40px 20px;
    background: linear-gradient(90deg, #FAD3E7, #F0F8F6, #C4F0E0);
    color: #333;
    text-align: center;
    font-size: 15px;
    border-top: 1px solid #ddd;
}

    footer p {
        margin: 4px 0;
    }

    footer a {
        color: #D13D76;
        text-decoration: none;
        font-weight: 500;
    }

        footer a:hover {
            text-decoration: underline;
        }
main {
    padding-top: 100px;
    padding-bottom: 160px; /* Chừa khoảng trống cho footer */
    background: linear-gradient(180deg, #F5F5F5, #D8F8F2);
}