/**
 * 青年隊活動管理系統 - e-class 風格樣式表 v2.0
 * 手機端專用優化版本
 * 配合 main-eclass-v2.css 使用
 */

@media (max-width: 768px) {
    /* ===== 容器優化 ===== */
    .container {
        padding: 0 14px;
    }
    
    /* ===== 頂部導航欄 - 手機端專用 ===== */
    #userInfoBar {
        padding-top: max(env(safe-area-inset-top), 10px);
    }
    
    .user-info-display {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto;
        gap: 12px;
        padding: 12px 0;
    }
    
    /* 第一行：信箱圖標（頂部居中） */
    .message-btn-wrapper {
        grid-row: 1;
        grid-column: 1;
        justify-self: center;
        width: 100%;
        display: flex;
        justify-content: center;
    }
    
    .message-btn-wrapper .btn {
        width: 52px;
        height: 52px;
        border-radius: 16px;
    }
    
    .message-btn-wrapper .btn i {
        font-size: 1.4rem;
    }
    
    /* 第二行：用戶信息 */
    .user-details {
        grid-row: 2;
        grid-column: 1;
        justify-content: center;
        width: 100%;
    }
    
    .user-avatar {
        width: 46px;
        height: 46px;
        font-size: 1.15rem;
    }
    
    .user-name {
        font-size: 1rem;
    }
    
    .user-role {
        font-size: 0.68rem;
        padding: 3px 9px;
    }
    
    /* 第三行：積分信息 */
    #memberInfo {
        grid-row: 3;
        grid-column: 1;
        justify-self: center;
        width: auto;
        font-size: 0.82rem;
        padding: 7px 13px;
    }
    
    #memberInfo i {
        font-size: 0.95rem;
    }
    
    /* 第四行：登出按鈕 */
    .actions-wrapper {
        grid-row: 4;
        grid-column: 1;
        justify-self: center;
        width: 100%;
        display: flex;
        justify-content: center;
    }
    
    .btn-logout {
        padding: 9px 18px;
        font-size: 0.88rem;
        border-radius: 20px;
    }
    
    /* ===== 功能標籤 - 手機端 ===== */
    .nav-tabs {
        padding: 6px;
        gap: 6px;
        border-radius: 12px;
        margin-bottom: 16px;
    }
    
    .nav-tabs .nav-link {
        padding: 10px 14px;
        font-size: 0.88rem;
        border-radius: 10px;
    }
    
    .nav-tabs .nav-link i {
        margin-right: 6px;
        font-size: 0.95rem;
    }
    
    /* ===== 標題 - 手機端 ===== */
    .section-title {
        font-size: 1.25rem;
        margin: 18px 0 14px 0;
        gap: 10px;
    }
    
    .section-title i {
        font-size: 1.35rem;
    }
    
    /* ===== 表格 - 手機端 ===== */
    .table-responsive {
        border-radius: 12px;
        margin-bottom: 16px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .table thead th {
        padding: 12px 14px !important;
        font-size: 0.82rem !important;
    }
    
    .table tbody td {
        padding: 12px 14px !important;
        font-size: 0.88rem !important;
    }
    
    /* ===== 按鈕 - 手機端 ===== */
    .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
        min-height: 48px;
        min-width: 48px;
        border-radius: 12px;
        width: 100%;
        margin-bottom: 8px;
    }
    
    .btn-sm {
        padding: 10px 16px;
        font-size: 0.85rem;
        min-height: 42px;
        width: auto;
    }
    
    .btn-lg {
        padding: 14px 24px;
        font-size: 0.95rem;
    }
    
    .d-flex.gap-2 {
        flex-direction: column;
    }
    
    .d-flex.gap-2 .btn {
        margin-bottom: 0;
    }
    
    /* ===== 卡片 - 手機端 ===== */
    .card {
        border-radius: 12px;
        margin-bottom: 16px;
    }
    
    .card-header {
        padding: 14px 16px;
        font-size: 0.95rem;
    }
    
    .card-body {
        padding: 16px;
    }
    
    /* ===== 表單 - 手機端 ===== */
    .form-control {
        padding: 13px 16px;
        font-size: 0.92rem;
        border-radius: 12px;
    }
    
    .form-label {
        font-size: 0.88rem;
        margin-bottom: 8px;
    }
    
    .form-group {
        margin-bottom: 18px;
    }
    
    /* ===== 警告框 - 手機端 ===== */
    .alert {
        padding: 14px 16px;
        font-size: 0.88rem;
        border-radius: 12px;
        margin-bottom: 16px;
    }
    
    .alert i {
        font-size: 1.1rem;
    }
    
    /* ===== 模態框 - 手機端 ===== */
    .modal-backdrop .modal {
        width: 95% !important;
        max-width: 95% !important;
        border-radius: 16px !important;
        max-height: 92vh !important;
    }
    
    .modal-header {
        padding: 18px 18px;
    }
    
    .modal-header h5 {
        font-size: 1.1rem;
    }
    
    .modal-body {
        padding: 20px 18px;
    }
    
    .modal-footer {
        padding: 16px 18px;
        flex-direction: column-reverse;
        gap: 8px;
    }
    
    .modal-footer .btn {
        width: 100%;
        margin-bottom: 0;
    }
    
    /* ===== 徽章 - 手機端 ===== */
    .badge {
        padding: 5px 10px;
        font-size: 0.72rem;
    }
    
    /* ===== 快速功能按鈕 - 手機端 ===== */
    .quick-action-btn {
        padding: 20px 16px;
        border-radius: 14px;
    }
    
    .quick-action-btn i {
        font-size: 2rem;
        margin-bottom: 10px;
    }
    
    .quick-action-btn span {
        font-size: 0.88rem;
    }
    
    /* ===== 數據統計卡片 - 手機端 ===== */
    .stat-card {
        padding: 18px;
        border-radius: 14px;
        margin-bottom: 16px;
    }
    
    .stat-card .stat-value {
        font-size: 2rem;
    }
    
    .stat-card .stat-label {
        font-size: 0.85rem;
    }
    
    /* ===== 列表 - 手機端 ===== */
    .list-group-item {
        padding: 14px 16px;
    }
    
    /* ===== 加載動畫 - 手機端 ===== */
    #loadingSpinner .spinner-border {
        width: 3rem;
        height: 3rem;
    }
}

/* ===== 超小屏幕優化 (≤375px) ===== */
@media (max-width: 375px) {
    .container {
        padding: 0 12px;
    }
    
    .user-avatar {
        width: 42px;
        height: 42px;
        font-size: 1.05rem;
    }
    
    .user-name {
        font-size: 0.95rem;
    }
    
    .user-role {
        font-size: 0.65rem;
        padding: 2px 7px;
    }
    
    #memberInfo {
        font-size: 0.78rem;
        padding: 6px 11px;
        gap: 6px;
    }
    
    #memberInfo i {
        font-size: 0.88rem;
    }
    
    .message-btn-wrapper .btn {
        width: 48px;
        height: 48px;
        border-radius: 14px;
    }
    
    .message-btn-wrapper .btn i {
        font-size: 1.25rem;
    }
    
    .nav-tabs .nav-link {
        padding: 9px 12px;
        font-size: 0.82rem;
    }
    
    .section-title {
        font-size: 1.15rem;
    }
    
    .table thead th,
    .table tbody td {
        padding: 10px 12px !important;
        font-size: 0.82rem !important;
    }
    
    .btn {
        padding: 11px 18px;
        font-size: 0.88rem;
    }
}

/* ===== 橫屏模式優化 ===== */
@media (max-width: 896px) and (orientation: landscape) {
    .user-info-display {
        gap: 10px;
        padding: 10px 0;
    }
    
    .user-avatar {
        width: 40px;
        height: 40px;
    }
    
    #memberInfo {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    .nav-tabs {
        padding: 4px;
    }
    
    .nav-tabs .nav-link {
        padding: 8px 12px;
        font-size: 0.85rem;
    }
}

/* ============================================
   Member-facing mobile polish pass (2026-03-18)
   ============================================ */
@media (max-width: 768px) {
    #userInfoBar .container {
        padding: 0 12px;
    }

    #userInfoBar .user-info-display {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding: 10px 0 calc(10px + env(safe-area-inset-bottom)) 0;
    }

    #userInfoBar .top-actions-row {
        width: 100%;
        display: flex;
        justify-content: space-between;
        gap: 10px;
    }

    #userInfoBar .message-btn-wrapper,
    #userInfoBar .logout-wrapper {
        flex: 1 1 0;
    }

    #userInfoBar .message-btn-wrapper .btn,
    #userInfoBar .btn-logout {
        width: 100%;
        min-height: 44px;
        border-radius: 12px;
    }

    #memberInfo {
        width: 100%;
        justify-content: center;
        font-size: 0.8rem;
        padding: 8px 10px;
        gap: 5px;
    }

    main.container {
        padding: 14px 12px 30px;
    }

    main.container > section {
        border-radius: 16px;
        padding: 16px 14px;
        margin-bottom: 18px;
    }

    main.container > section.container-fluid {
        padding-left: 14px;
        padding-right: 14px;
    }

    .section-title {
        margin: 0 0 12px;
        font-size: 1.08rem;
    }

    #myTab.nav-tabs {
        margin-bottom: 12px;
        padding: 5px;
        gap: 5px;
        border-radius: 12px;
    }

    #myTab .nav-link {
        min-height: 40px;
        padding: 9px 12px;
        font-size: 0.82rem;
    }

    #myTabContent {
        border-radius: 14px;
        padding: 12px;
    }

    #signup .d-flex.gap-2,
    #messageListModalContainer .modal-body .d-flex.gap-2,
    main.container > section.container-fluid > .btn-group {
        width: 100%;
        display: grid;
        gap: 6px;
        padding: 6px;
        margin-bottom: 12px;
    }

    #signup .d-flex.gap-2,
    #messageListModalContainer .modal-body .d-flex.gap-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    main.container > section.container-fluid > .btn-group {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    #signup .d-flex.gap-2 .btn,
    #messageListModalContainer .modal-body .d-flex.gap-2 .btn,
    main.container > section.container-fluid > .btn-group .btn {
        width: 100%;
        min-height: 40px;
        padding: 9px 8px;
        margin: 0;
        font-size: 0.81rem;
    }

    .btn {
        width: auto;
        margin-bottom: 0;
    }

    form .btn:not(.btn-sm) {
        width: 100%;
        margin-top: 8px;
    }

    #checkForm .btn-group {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 6px;
        width: 100%;
    }

    #checkForm .btn-group .btn {
        width: 100%;
        margin: 0;
    }

    .table-responsive {
        margin-bottom: 12px;
        border-radius: 12px;
    }

    .table {
        min-width: 560px;
    }

    .table thead th {
        font-size: 0.72rem !important;
        padding: 10px 10px !important;
    }

    .table tbody td {
        font-size: 0.81rem !important;
        padding: 10px 10px !important;
    }

    .form-control,
    .form-select {
        min-height: 42px;
        padding: 10px 12px;
        font-size: 0.87rem;
    }

    .form-label {
        font-size: 0.82rem;
    }

    .alert {
        padding: 12px 14px;
        font-size: 0.84rem;
        margin-bottom: 12px;
    }

    .card {
        border-radius: 14px;
    }

    .card-body {
        padding: 14px;
    }

    .modal-backdrop .modal {
        width: calc(100% - 0.9rem) !important;
        max-width: calc(100% - 0.9rem) !important;
        max-height: 92vh !important;
        border-radius: 14px !important;
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding-left: 14px;
        padding-right: 14px;
    }

    .message-modal-shell {
        width: calc(100% - 0.8rem) !important;
        margin: 0.6rem auto !important;
    }
}

@media (max-width: 540px) {
    #signup .d-flex.gap-2,
    #messageListModalContainer .modal-body .d-flex.gap-2,
    main.container > section.container-fluid > .btn-group {
        grid-template-columns: 1fr;
    }

    .table {
        min-width: 520px;
    }
}