/* ==========================================
   1. 全域基礎重置 (共用)
   ========================================== */
body, html {
    margin: 0;
    padding: 0;
    height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    box-sizing: border-box;
}

/* ==========================================
   2. 登入頁面專用樣式 (.login-page)
   ========================================== */
body.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #597a9f;
}

body.login-page .login-wrapper {
    position: relative;
    width: 360px;
    margin-top: 50px;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 90%; /* 手機版防超出版面 */
}

body.login-page .login-card {
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 25px;
    padding: 65px 35px 35px 35px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    position: relative;
    z-index: 2;
    width: 100%;
    box-sizing: border-box;
}

body.login-page .avatar {
    position: absolute;
    top: -45px;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    height: 90px;
    background-color: #032a4e;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 3;
}

body.login-page .avatar i {
    color: white;
    font-size: 45px;
    font-weight: 300;
}

body.login-page .input-group {
    display: flex;
    margin-bottom: 20px;
    border-radius: 0;
    overflow: hidden;
}

body.login-page .input-icon {
    background-color: #0b2b48;
    color: white;
    padding: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 20px;
}

body.login-page .input-group input {
    border: none;
    background-color: #345272;
    color: white;
    padding: 15px;
    width: 100%;
    font-size: 14px;
    outline: none;
    box-sizing: border-box;
}

body.login-page .input-group input::placeholder {
    color: #9ab0c5;
}

body.login-page .options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 25px;
    font-size: 13px;
    color: #4f647d;
}

body.login-page .options a {
    color: #4f647d;
    text-decoration: none;
    font-style: italic;
}

body.login-page .custom-checkbox {
    display: flex;
    align-items: center;
    position: relative;
    cursor: pointer;
    user-select: none;
}

body.login-page .custom-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

body.login-page .checkmark {
    height: 16px;
    width: 16px;
    background-color: #345272;
    margin-right: 8px;
    border-radius: 2px;
    display: flex;
    justify-content: center;
    align-items: center;
}

body.login-page .custom-checkbox input:checked ~ .checkmark {
    background-color: #0b2b48; 
}

body.login-page .checkmark:after {
    content: "";
    display: none;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-bottom: 2px;
}

body.login-page .custom-checkbox input:checked ~ .checkmark:after {
    display: block;
}

body.login-page .login-btn {
    position: relative;
    margin-top: -10px;
    width: 65%;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.3));
    backdrop-filter: blur(10px);
    border: none;
    border-radius: 0 0 20px 20px;
    padding: 15px 0;
    color: white;
    font-weight: 700;
    letter-spacing: 2px;
    font-size: 14px;
    cursor: pointer;
    z-index: 1;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* ==========================================
   3. 後台管理面板專用樣式 (.admin-page)
   ========================================== */
body.admin-page {
    background-color: #f4f7f6;
    display: flex;
}

body.admin-page .sidebar {
    width: 200px;
    background-color: #0b2b48;
    color: white;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

body.admin-page .sidebar-header {
    padding: 20px;
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    background-color: #082036;
    border-bottom: 1px solid #1a426b;
}

body.admin-page .sidebar-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}

body.admin-page .sidebar-menu li a {
    display: block;
    padding: 15px 20px;
    color: #9ab0c5;
    text-decoration: none;
    transition: 0.3s;
}

body.admin-page .sidebar-menu li a:hover, 
body.admin-page .sidebar-menu li a.active {
    background-color: #345272;
    color: white;
    border-left: 4px solid #fff;
}

body.admin-page .sidebar-menu li a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

body.admin-page .main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    height: 100vh;
}

/* --- 頂部導覽列 (包含通告與時鐘) --- */
body.admin-page .navbar {
    background-color: white;
    padding: 12px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    gap: 20px;
}

body.admin-page .nav-announcement {
    flex-grow: 1;
    overflow: hidden;
    background-color: #fffaf0;
    border: 1px solid #ffebba;
    color: #e67e22;
    padding: 6px 15px;
    border-radius: 6px;
    margin: 0 15px;
    white-space: nowrap;
    position: relative;
    font-size: 14px;
    font-weight: 500;
}

/* 實現文字平滑滾動效果 */
body.admin-page .nav-announcement .marquee-content {
    display: inline-block;
    padding-left: 100%;
    animation: marquee 20s linear infinite;
}

@keyframes marquee {
    0%   { transform: translate(0, 0); }
    100% { transform: translate(-100%, 0); }
}

body.admin-page .nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

body.admin-page .nav-clock {
    font-size: 13px;
    color: #0b2b48;
    font-weight: bold;
    background-color: #eef2f7;
    padding: 6px 12px;
    border-radius: 6px;
    border-bottom: 2px solid #597a9f; /* 呼應您的藍色底線需求 */
    white-space: nowrap;
    letter-spacing: 0.5px;
}

body.admin-page .navbar .user-profile {
    display: flex;
    align-items: center;
    color: #0b2b48;
    font-weight: 500;
}

body.admin-page .navbar .user-profile i {
    font-size: 24px;
    margin-right: 10px;
    color: #597a9f;
}

/* 手機版優化：隱藏通告與時鐘以節省空間 */
@media screen and (max-width: 768px) {
    body.admin-page .nav-announcement { display: none; }
    body.admin-page .nav-clock { display: none; }
}

body.admin-page .dashboard {
    padding: 30px;
}

body.admin-page .dashboard-header {
    margin-bottom: 30px;
    color: #333;
}

/* --- 後台共用卡片與表單 --- */
body.admin-page .panel { 
    background: white; 
    border-radius: 10px; 
    padding: 25px; 
    margin-bottom: 30px; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.03); 
}

body.admin-page .form-group { 
    margin-bottom: 15px; 
    display: flex; 
    gap: 10px; 
    flex-wrap: wrap; 
}

body.admin-page .form-group input { 
    padding: 10px; 
    border: 1px solid #ccc; 
    border-radius: 5px; 
    flex: 1; 
    min-width: 200px; 
    outline: none;
}

body.admin-page .form-group input:focus { 
    border-color: #597a9f; 
}

/* --- 按鈕樣式 --- */
body.admin-page .btn { 
    padding: 10px 15px; 
    border: none; 
    border-radius: 5px; 
    cursor: pointer; 
    color: white; 
    font-weight: bold; 
    white-space: nowrap; 
    text-decoration: none; 
    display: inline-block; 
    text-align: center;
}
body.admin-page .btn-primary { background-color: #597a9f; }
body.admin-page .btn-primary:hover { background-color: #436284; }
body.admin-page .btn-warning { background-color: #f39c12; }
body.admin-page .btn-warning:hover { background-color: #d68910; }
body.admin-page .btn-danger { background-color: #e74c3c; }
body.admin-page .btn-danger:hover { background-color: #c0392b; }
body.admin-page .btn-secondary { background-color: #95a5a6; color: white; }

/* --- 提示訊息 --- */
body.admin-page .alert { 
    padding: 15px; 
    border-radius: 5px; 
    margin-bottom: 20px; 
    font-weight: bold; 
}
body.admin-page .alert-success { background-color: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
body.admin-page .alert-error { background-color: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

/* --- 表格與標籤樣式 --- */
body.admin-page table { 
    width: 100%; 
    border-collapse: collapse; 
    margin-top: 15px; 
    font-size: 14px;
}
body.admin-page th, 
body.admin-page td { 
    padding: 12px 10px; 
    text-align: left; 
    border-bottom: 1px solid #eee; 
    vertical-align: middle;
}
body.admin-page th { 
    background-color: #f8f9fa; 
    color: #333; 
}
body.admin-page .short-link-url { color: #597a9f; text-decoration: none; font-weight: bold;}
body.admin-page .short-link-url:hover { text-decoration: underline; }
body.admin-page .company-badge { background-color: #eef2f7; color: #597a9f; padding: 4px 8px; border-radius: 4px; font-size: 12px; font-weight: 600; white-space: nowrap;}
body.admin-page .user-badge { background-color: #f1f3f5; color: #495057; padding: 3px 6px; border-radius: 4px; font-size: 12px; font-weight: 600; white-space: nowrap;}
body.admin-page .action-buttons { display: flex; gap: 5px; }
body.admin-page .action-buttons .btn { padding: 6px 10px; font-size: 12px; }
body.admin-page .time-text { color: #777; font-size: 12px; white-space: nowrap; }
body.admin-page .count-no { font-weight: bold; color: #888; }

/* ==========================================
   4. 總覽數據統計卡片與權限標籤
   ========================================== */
body.admin-page .stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-bottom: 30px; }
body.admin-page .stat-card { background: white; border-radius: 10px; padding: 25px 20px; display: flex; align-items: center; box-shadow: 0 4px 15px rgba(0,0,0,0.03); border-left: 5px solid #597a9f; }
body.admin-page .stat-card.users { border-color: #27ae60; }
body.admin-page .stat-card.today { border-color: #f39c12; }
body.admin-page .stat-icon { font-size: 35px; color: #597a9f; margin-right: 20px; opacity: 0.8;}
body.admin-page .stat-card.users .stat-icon { color: #27ae60; }
body.admin-page .stat-card.today .stat-icon { color: #f39c12; }
body.admin-page .stat-info h4 { margin: 0 0 5px 0; color: #777; font-size: 14px; font-weight: normal;}
body.admin-page .stat-info h2 { margin: 0; color: #333; font-size: 28px;}

/* 權限角色標籤 */
body.admin-page .role-badge-super { background-color: #f39c12; color: white; padding: 4px 8px; border-radius: 4px; font-size: 11px; font-weight: bold; white-space: nowrap;}
body.admin-page .role-badge-admin { background-color: #597a9f; color: white; padding: 4px 8px; border-radius: 4px; font-size: 11px; font-weight: bold; white-space: nowrap;}

/* 系統設定/密碼修改表單 */
body.admin-page .settings-form { max-width: 400px; display: flex; flex-direction: column; gap: 15px; }
body.admin-page .settings-form label { font-size: 14px; color: #555; font-weight: bold; margin-bottom: -5px; }
body.admin-page .settings-form input, 
body.admin-page .settings-form select { padding: 12px; border: 1px solid #ccc; border-radius: 5px; outline: none; font-family: inherit;}
body.admin-page .settings-form input:focus, 
body.admin-page .settings-form select:focus { border-color: #597a9f; }

/* ==========================================
   5. 手機版與響應式優化 (Mobile RWD)
   ========================================== */
.menu-toggle { display: none; cursor: pointer; padding: 5px; }

/* 側邊欄半透明遮罩 */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.sidebar-overlay.active { display: block; opacity: 1; }

@media screen and (max-width: 768px) {
    /* 顯示漢堡選單按鈕 */
    .menu-toggle { display: block; }
    
    /* 側邊欄預設隱藏至螢幕左側外 */
    body.admin-page .sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        bottom: 0;
        z-index: 999;
        transition: left 0.3s ease;
        box-shadow: 2px 0 10px rgba(0,0,0,0.2);
    }
    
    /* 當側邊欄展開時的樣式 */
    body.admin-page .sidebar.open { left: 0; }
    
    /* 內容區域滿版 */
    body.admin-page .main-content { width: 100%; }
    
    /* 縮小內外間距 */
    body.admin-page .dashboard { padding: 15px; }
    body.admin-page .panel { padding: 15px; margin-bottom: 20px; }
    body.admin-page .navbar { padding: 15px 20px; }
    
    /* 數據卡片改為垂直排列 */
    body.admin-page .stat-grid { grid-template-columns: 1fr; gap: 15px; margin-bottom: 20px;}
    body.admin-page .stat-card { padding: 20px 15px; }
    
    /* 隱藏頂部欄的使用者名稱，只留頭像圖示以節省空間 */
    body.admin-page .user-profile span { display: none; }
    body.admin-page .user-profile i { margin-right: 0; font-size: 28px; }
    
    /* 表單輸入框直式排列且滿版 */
    body.admin-page .form-group { flex-direction: column; gap: 10px;}
    body.admin-page .form-group input, 
    body.admin-page .form-group select, 
    body.admin-page .form-group button { 
        width: 100%; 
        box-sizing: border-box; 
    }
    
    /* 讓表格標題與內容不斷行，確保平滑的橫向捲動體驗 */
    body.admin-page table th, 
    body.admin-page table td { 
        white-space: nowrap; 
    }
    
    /* 密碼設定表單滿版 */
    body.admin-page .settings-form { max-width: 100%; }
}