/* Reset và Variables */
:root {
    --color-canvas-default: #ffffff;
    --color-header-bg: #24292f;
    --color-btn-primary-bg: #2da44e;
    --color-btn-primary-hover-bg: #2c974b;
    --color-accent-fg: #0969da;
    --color-border-default: #d0d7de;
    --color-canvas-subtle: #f6f8fa;
    --color-fg-default: #24292f;
    --color-fg-on-emphasis: #ffffff;
    --color-neutral-muted: rgba(175, 184, 193, 0.2);
    --color-shadow-large: 0 8px 24px rgba(140, 149, 159, 0.2);
    --transition-default: 80ms cubic-bezier(0.33, 1, 0.68, 1);

    --header-height: 60px;
    --mobile-header-height: 50px;
    
}
.hdxx {
    padding-top: var(--header-height);
    font-family: Arial, Helvetica, sans-serif;
}


/* Layout Components */
.hdx-navbar {
    display: flex;
    align-items: center;
    background-color: var(--color-header-bg);
    padding: 0 16px;
    color: var(--color-fg-on-emphasis);
    border-bottom: 1px solid var(--color-border-default);
    position: fixed;
    top: 0;
    height: var(--header-height);
    
    left: 0;
    right: 0;
    z-index: 1000; /* Tăng z-index để chắc chắn nằm trên cùng */
}

.hdx-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 260px;
    height: calc(100vh - var(--header-height));
    background-color: var(--color-canvas-default);
    border-right: 1px solid var(--color-border-default);
    transform: translateX(-100%);
    transition: transform var(--transition-default);
    z-index: 99;
}

.hdx-sidebar.active {
    transform: translateX(0);
}

.main-content {
    padding-top: var(--header-height);
}

/* Navigation Elements */
.hdx-toggle-btn, .hdx-dropdown-btn {
    font-size: 14px;
    color: var(--color-fg-on-emphasis);
    border: 1px solid transparent;
    padding: 5px 16px;
    cursor: pointer;
    border-radius: 6px;
    font-weight: 500;
    transition: background-color var(--transition-default);
}

.hdx-toggle-btn {
    background: var(--color-accent-fg);
    margin-right: 16px;
}

.hdx-dropdown-btn {
    display: inline-flex;
    align-items: center;
    background-color: var(--color-btn-primary-bg);
    line-height: 20px;
    white-space: nowrap;
}

.hdx-toggle-btn:hover, 
.hdx-dropdown-btn:hover {
    background-color: var(--color-btn-primary-hover-bg);
}
/* Logo container */
.hdx-navbar .hdx-logo {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 16px;
    font-weight: 600;
    flex-grow: 1;
    min-width: 0; /* Cho phép container co lại */
}

/* Page Title với ellipsis */
.hdx-navbar .page-title {
    font-size: 14px;
    font-weight: normal;
    color: var(--color-fg-on-emphasis);
    white-space: nowrap; /* Ngăn text xuống dòng */
    overflow: hidden; /* Ẩn phần text thừa */
    text-overflow: ellipsis; /* Hiện 3 chấm */
    max-width: 200px; /* Giới hạn chiều rộng tối đa */
    min-width: 0; /* Cho phép element co lại */
}

/* Dropdown */
.hdx-dropdown {
    position: relative;
}

.hdx-dropdown-content {
    position: absolute;
    top: 100%;
    right: 0;
    width: 300px;
    padding: 4px 0;
    margin-top: 4px;
    background-color: var(--color-canvas-default);
    border: 1px solid var(--color-border-default);
    border-radius: 6px;
    box-shadow: var(--color-shadow-large);
    display: none;
    z-index: 101;
}

.hdx-dropdown-content.show {
    display: block;
    animation: dropdown-show 0.1s ease-out;
}

.hdx-dropdown-content a {
    display: block;
    padding: 8px 16px;
    color: var(--color-fg-default);
    text-decoration: none;
    font-size: 14px;
    transition: background-color 60ms ease-out;
}

.hdx-dropdown-content a:hover {
    background-color: var(--color-canvas-subtle);
    color: var(--color-accent-fg);
}

.hdx-dropdown-content a.selected {
    background-color: var(--color-neutral-muted);
    font-weight: 500;
}

/* Confirm Button */
#hdx-confirmBtn {
    width: calc(100% - 32px);
    margin: 8px 16px;
    background-color: var(--color-btn-primary-bg);
    color: var(--color-fg-on-emphasis);
}

/* Sidebar Links */
.hdx-sidebar a {
    display: block;
    padding: 8px 16px;
    color: var(--color-fg-default);
    text-decoration: none;
    font-size: 14px;
    border-left: 4px solid transparent;
    transition: background-color 60ms ease-out;
}

.hdx-sidebar a:hover,
.hdx-sidebar a.active {
    background-color: var(--color-canvas-subtle);
    color: var(--color-accent-fg);
}

.hdx-sidebar a.active {
    font-weight: 500;
    border-left-color: var(--color-accent-fg);
}

/* Animation */
@keyframes dropdown-show {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 768px) {
    .hdxx {
        padding-top: var(--mobile-header-height);
    }

    .main-content {
        min-height: calc(100vh - var(--mobile-header-height));
    }
    :root {
        --header-height: var(--mobile-header-height);
    }
    
    .hdx-navbar {
        padding: 0 8px;
    }
    
    .hdx-sidebar {
        width: 240px;
    }
    
    .hdx-dropdown-content {
        width: 280px;
    }
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --color-canvas-default: #0d1117;
        --color-header-bg: #161b22;
        --color-btn-primary-bg: #238636;
        --color-btn-primary-hover-bg: #2ea043;
        --color-accent-fg: #58a6ff;
        --color-border-default: #30363d;
        --color-canvas-subtle: #161b22;
        --color-fg-default: #c9d1d9;
        --color-neutral-muted: rgba(110, 118, 129, 0.4);
    }
}
/* Media query cho màn hình nhỏ */
@media (max-width: 768px) {
    .hdx-navbar .page-title {
        max-width: 150px; /* Giảm chiều rộng tối đa trên mobile */
    }
}

/* Màn hình rất nhỏ */
@media (max-width: 480px) {
    .hdx-navbar .page-title {
        max-width: 100px; /* Giảm thêm chiều rộng trên màn hình rất nhỏ */
    }
}
/* Navigation Elements - Logo và Home button */
.hdx-hdx-logo-btn, 
.hdx-home-btn {
    display: inline-flex;
    align-items: center;
    font-size: 14px;
    color: var(--color-fg-on-emphasis);
    padding: 5px 16px;
    cursor: pointer;
    border-radius: 6px;
    font-weight: 500;
    transition: background-color var(--transition-default);
    text-decoration: none;
    border: 1px solid transparent;
}

.hdx-hdx-logo-btn {
    background-color: transparent;
    font-size: 16px;
    font-weight: 600;
    padding-left: 0; /* Không padding bên trái cho hdx-logo */
}

.hdx-home-btn {
    margin-left: 16px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.hdx-home-btn:hover {
    color: var(--color-border-default);
}

/* Bỏ các styles cũ không cần thiết */
.hdx-navbar .hdx-logo {
    display: flex;
    align-items: center;
    flex-grow: 1;
    min-width: 0;
}

/* Media Queries */
@media (max-width: 768px) {
    .hdx-home-btn {
        max-width: 150px;
    }
}

@media (max-width: 480px) {
    .hdx-home-btn {
        max-width: 100px;
    }
}
/* Thêm hiệu ứng hover cho hdx-logo nếu cần */
.hdx-hdx-logo-btn:hover {
    opacity: 0.8;
}

/* Active states */
.hdx-hdx-logo-btn:active,
.hdx-home-btn:active {
    transform: translateY(1px);
}


* {
    -webkit-tap-highlight-color: transparent;
}