/* Biến toàn cục */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

/* Reset và cấu hình cơ bản */
html {
    position: relative;
    min-height: 100%;
}

body {
    margin-bottom: 60px; /* Margin bottom by footer height */
    background-color: #f5f5f5;
}

.footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 60px; /* Set the fixed height of the footer here */
    line-height: 60px; /* Vertically center the text there */
    background-color: var(--light-color);
}

/* Styles cho authentication */
.auth-card {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    border: none;
    border-radius: 0.5rem;
}

.auth-card .card-header {
    background-color: white;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    border-top-left-radius: 0.5rem !important;
    border-top-right-radius: 0.5rem !important;
}

.auth-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #f5f5f5;
    background-image: linear-gradient(135deg, rgba(13, 110, 253, 0.05) 25%, transparent 25%),
                      linear-gradient(225deg, rgba(13, 110, 253, 0.05) 25%, transparent 25%),
                      linear-gradient(45deg, rgba(13, 110, 253, 0.05) 25%, transparent 25%),
                      linear-gradient(315deg, rgba(13, 110, 253, 0.05) 25%, transparent 25%);
    background-position: 10px 0, 10px 0, 0 0, 0 0;
    background-size: 20px 20px;
    background-repeat: repeat;
    z-index: -1;
}

/* Styles cho trang logout */
.logout-page {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
}

.logout-page .card {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    border: none;
    border-radius: 0.5rem;
    max-width: 500px;
}

/* Styles cho trang logged-out */
.logged-out-page {
    padding: 2rem;
}

/* Responsive fixes */
@media (max-width: 576px) {
    .auth-card {
        margin: 1rem;
    }
}