/**
 * Mobile-First Responsive Design for Admin Pages
 * Optimized for admin login and dashboard
 */

/* ============================================
   ADMIN LOGIN - MOBILE
   ============================================ */

@media (max-width: 768px) {
    .admin-login-container {
        min-height: 100vh;
        padding: 1rem;
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    }

    .admin-login-box {
        width: 100%;
        max-width: 100%;
        padding: 2rem 1.5rem;
        border-radius: 12px;
        box-shadow: 0 2px 12px rgba(0,0,0,0.1);
    }

    .admin-login-box h1 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
        text-align: center;
    }

    .form-group {
        margin-bottom: 1.5rem;
    }

    .form-group label {
        font-size: 0.95rem;
        font-weight: 600;
        margin-bottom: 0.625rem;
        display: block;
    }

    .form-control {
        width: 100%;
        padding: 0.875rem 1rem;
        font-size: 16px; /* Prevent iOS zoom */
        border: 2px solid #ddd;
        border-radius: 8px;
        transition: all 0.2s;
        -webkit-appearance: none;
        appearance: none;
        box-sizing: border-box;
    }

    .form-control:focus {
        border-color: #0066cc;
        box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
        outline: none;
    }

    .password-input-wrapper {
        position: relative;
        display: flex;
        align-items: center;
    }

    .password-input-wrapper .form-control {
        padding-right: 3.5rem;
    }

    .password-toggle {
        position: absolute;
        right: 0.75rem;
        background: none;
        border: none;
        cursor: pointer;
        padding: 0.5rem;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #666;
        transition: color 0.3s;
        z-index: 1;
        min-width: 44px;
        min-height: 44px;
        border-radius: 4px;
    }

    .password-toggle:hover,
    .password-toggle:focus {
        color: #0066cc;
        background: rgba(0, 102, 204, 0.1);
        outline: none;
    }

    .btn-primary.btn-block {
        width: 100%;
        padding: 0.875rem 1.5rem;
        min-height: 48px;
        font-size: 1rem;
        font-weight: 600;
        border-radius: 8px;
        touch-action: manipulation;
    }

    .btn-primary:active {
        transform: scale(0.98);
        transition: transform 0.1s;
    }

    .error-message {
        margin-top: 1rem;
        padding: 1rem;
        border-radius: 8px;
        background: #f8d7da;
        color: #721c24;
        border: 1px solid #f5c6cb;
        font-size: 0.9rem;
        line-height: 1.6;
    }
}

/* ============================================
   ADMIN DASHBOARD - MOBILE
   ============================================ */

@media (max-width: 768px) {
    .admin-container {
        min-height: 100vh;
        background: #f5f5f5;
    }

    /* Header */
    .admin-header {
        background: #fff;
        padding: 1rem;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        position: sticky;
        top: 0;
        z-index: 100;
    }

    .admin-header h1 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
        color: #333;
    }

    .admin-info {
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    .admin-info p {
        font-size: 0.85rem;
        color: #666;
        margin: 0;
    }

    .btn-logout {
        display: inline-block;
        padding: 0.75rem 1.5rem;
        background: #dc3545;
        color: #fff;
        text-decoration: none;
        border-radius: 8px;
        font-size: 0.9rem;
        font-weight: 600;
        margin-top: 0.75rem;
        text-align: center;
        min-height: 44px;
        touch-action: manipulation;
    }

    .btn-logout:hover,
    .btn-logout:active {
        background: #c82333;
    }

    /* Filters */
    .filters {
        padding: 1rem;
        background: #fff;
        border-bottom: 1px solid #e0e0e0;
    }

    .filter-form {
        display: flex;
        flex-direction: column;
        gap: 0.75rem;
    }

    .filter-form select {
        width: 100%;
        padding: 0.875rem 1rem;
        font-size: 16px; /* Prevent iOS zoom */
        border: 2px solid #ddd;
        border-radius: 8px;
        background: #fff;
        -webkit-appearance: none;
        appearance: none;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 1rem center;
        background-size: 12px;
        padding-right: 2.5rem;
    }

    .filter-form select:focus {
        border-color: #0066cc;
        box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.1);
        outline: none;
    }

    .btn-filter,
    .btn-export {
        width: 100%;
        padding: 0.875rem 1.5rem;
        min-height: 48px;
        font-size: 1rem;
        font-weight: 600;
        border-radius: 8px;
        border: none;
        cursor: pointer;
        touch-action: manipulation;
    }

    .btn-filter {
        background: #0066cc;
        color: #fff;
    }

    .btn-filter:hover,
    .btn-filter:active {
        background: #0052a3;
    }

    .btn-export {
        background: #28a745;
        color: #fff;
        text-decoration: none;
        display: block;
        text-align: center;
    }

    .btn-export:hover,
    .btn-export:active {
        background: #218838;
    }

    /* Table - Mobile card layout */
    .admin-content {
        padding: 1rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .users-table {
        width: 100%;
        border-collapse: collapse;
        background: transparent;
        display: block;
    }

    .users-table thead {
        display: none; /* Hide header on mobile */
    }

    .users-table tbody {
        display: block;
    }

    .users-table tr {
        display: block;
        margin-bottom: 1rem;
        border: 1px solid #e0e0e0;
        border-radius: 8px;
        padding: 1rem;
        background: #fff;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    }

    .users-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.75rem 0;
        border-bottom: 1px solid #f0f0f0;
        text-align: left;
        word-break: break-word;
    }

    .users-table td:last-child {
        border-bottom: none;
        padding-top: 1rem;
        margin-top: 0.5rem;
        border-top: 1px solid #e0e0e0;
    }

    .users-table td::before {
        content: attr(data-label);
        font-weight: 600;
        color: #333;
        flex-shrink: 0;
        margin-right: 1rem;
        min-width: 100px;
        font-size: 0.9rem;
    }

    /* Special handling for checkboxes */
    .users-table td[data-label="入金"],
    .users-table td[data-label="OPEN"] {
        align-items: center;
    }

    .users-table td[data-label="入金"]::before,
    .users-table td[data-label="OPEN"]::before {
        margin-right: auto;
    }

    /* URL links */
    .users-table td[data-label="名刺URL"] a {
        word-break: break-all;
        color: #0066cc;
        text-decoration: none;
        font-size: 0.85rem;
    }

    .users-table td[data-label="名刺URL"] a:hover {
        text-decoration: underline;
    }

    /* Checkboxes */
    .payment-checkbox,
    .open-checkbox {
        width: 24px;
        height: 24px;
        min-width: 24px;
        min-height: 24px;
        cursor: pointer;
        margin: 0;
    }

    /* Action buttons */
    .btn-action {
        width: 100%;
        padding: 0.75rem 1rem;
        background: #0066cc;
        color: #fff;
        border: none;
        border-radius: 8px;
        font-size: 0.9rem;
        font-weight: 600;
        cursor: pointer;
        min-height: 44px;
        touch-action: manipulation;
    }

    .btn-action:hover,
    .btn-action:active {
        background: #0052a3;
    }

    /* Remove default data-label display since we're using ::before */
    .users-table td[data-label]::before {
        content: attr(data-label) ": ";
    }

    .users-table td[data-label="操作"]::before {
        content: "";
    }
}

/* ============================================
   VERY SMALL SCREENS (320px - 480px)
   ============================================ */

@media (max-width: 480px) {
    .admin-login-box {
        padding: 1.5rem 1.25rem;
    }

    .admin-login-box h1 {
        font-size: 1.35rem;
    }

    .admin-header h1 {
        font-size: 1.15rem;
    }

    .admin-info p {
        font-size: 0.8rem;
    }

    .users-table td {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .users-table td::before {
        margin-right: 0;
        margin-bottom: 0.25rem;
    }
}

/* ============================================
   TABLET (769px - 1024px)
   ============================================ */

@media (min-width: 769px) and (max-width: 1024px) {
    .admin-content {
        padding: 1.5rem;
    }

    .users-table {
        display: table;
    }

    .users-table thead {
        display: table-header-group;
    }

    .users-table tbody {
        display: table-row-group;
    }

    .users-table tr {
        display: table-row;
        margin-bottom: 0;
        border: none;
        border-radius: 0;
        padding: 0;
        box-shadow: none;
    }

    .users-table td {
        display: table-cell;
        padding: 0.75rem;
        border-bottom: 1px solid #e0e0e0;
        text-align: left;
    }

    .users-table td::before {
        display: none;
    }

    /* Make table horizontally scrollable on tablet */
    .admin-content {
        overflow-x: auto;
    }

    .users-table {
        min-width: 800px;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (max-width: 768px) {
    *:focus-visible {
        outline: 3px solid #0066cc;
        outline-offset: 2px;
        border-radius: 4px;
    }

    button,
    .btn-primary,
    .btn-secondary,
    a,
    select {
        -webkit-tap-highlight-color: rgba(0, 102, 204, 0.1);
        touch-action: manipulation;
    }
}