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-bottom: 60px;
}



.responsive-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
}

.box {
    padding: 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    background-color: #f9f9f9;
}

/* Khi màn hình nhỏ và nằm ngang */
@media (orientation: landscape) and (max-width: 768px) {
    .responsive-container {
        flex-direction: row;
    }

    .box {
        flex: 1;
    }
}

/* Chia 2 man hinh */
.container-split {
    display: flex;
    flex-direction: row;
    height: 100vh;
    font-family: Arial, sans-serif;
    gap: 1rem;
    margin-top: 1rem;
    margin-bottom: 2rem;
}

    /* Panel chung cho mọi loại bố cục */
    .container-split .left-panel,
    .container-split .center-panel,
    .container-split .right-panel {
        padding: 1rem;
        background-color: #f9f9f9;
        border: 1px solid #ccc;
        border-radius: 8px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        min-width: 250px;
    }

.left-panel, .right-panel {
    padding: 20px;
    overflow-y: auto;
    box-sizing: border-box;
}

.left-panel {
    width: 25%;
    background-color: #f9f9f9;
    border-right: 1px solid #ccc;
}

.right-panel {
    width: 75%;
    background-color: #ffffff;
}

h2 {
    margin-top: 0;
    font-size: 20px;
}

ul {
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
}



/* ========== Biến thể 2 cột ========== */
.container-split-2 .left-panel,
.container-split-2 .right-panel {
    flex: 1 1 75%;
}
/* ========== Biến thể 3 cột đều nhau ========== */
.container-split-3 .left-panel,
.container-split-3 .center-panel,
.container-split-3 .right-panel {
    flex: 1 1 30%;
}

/* ========== Biến thể 3 cột (giữa rộng hơn) ========== */
.container-split-wide .left-panel {
    flex: 1 1 20%;
}

.container-split-wide .center-panel {
    flex: 1 1 60%;
}

.container-split-wide .right-panel {
    flex: 1 1 20%;
}

/* Responsive cho mobile */
@media (max-width: 768px) {
    .container-split {
        flex-direction: column;
        height: auto;
    }

    .left-panel, .right-panel {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #ccc;
    }
}

/* Trinh bay nut di chuyen trang*/
.pagination {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    padding: 12px;
    font-size: 14px;
    flex-shrink: 0;
}

    .pagination a, .pagination span {
        display: flex;
        align-items: center;
        justify-content: center;
        min-width: 36px;
        height: 36px;
        border: 1px solid #ccc;
        border-radius: 6px;
        background-color: #f9f9f9;
        color: #333;
        text-decoration: none;
        font-weight: bold;
    }

        .pagination a:hover {
            background-color: #e2e6ea;
        }

    .pagination .active {
        background-color: #007bff;
        color: white;
        border-color: #007bff;
    }

    .pagination .disabled {
        pointer-events: none;
        background-color: #eee;
        color: #aaa;
    }

.table td, .table th {
    white-space: normal !important;
    word-wrap: break-word;
}