/* Mobile Responsive Styles */
@media (max-width: 768px) {
    /* Login Page */
    .login-container {
        margin: 20px;
        padding: 24px 20px;
        max-width: none;
        height: auto;
        min-height: auto;
        transform: translateY(50%);
    }

    .login-header {
        margin-bottom: 24px;
    }

    .logo-container {
        margin-bottom: 16px;
    }

    .brand-name {
        font-size: 26px;
    }

    .subtitle {
        font-size: 15px;
    }

    .form-group {
        margin-bottom: 16px;
    }

    input {
        padding: 10px 14px;
        font-size: 14px;
    }

    /* Header */
    .main-header {
        padding: 8px;
        height: auto;
        flex-wrap: wrap;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 100;
        background: var(--surface-color);
        box-sizing: border-box;
        column-gap: 20px;
    }

    .header-left {
        gap: 0;
    }

    .header-center {
        order: 3;
        width: 100%;
        margin-top: 8px;
        box-sizing: border-box;
    }

    .search-bar {
        width: 100%;
        padding: 6px 12px;
        box-sizing: border-box;
    }

    .search-bar input {
        font-size: 14px;
        box-sizing: border-box;
    }

    .header-right {
        gap: 8px;
    }

    #compose-btn {
        padding: 8px 12px;
        font-size: 14px;
        white-space: nowrap;
    }

    /* Main Content */
    .main-content {
        flex-direction: column;
        height: calc(100vh - 64px);
        margin-top: 64px;
        position: relative;
        overflow: hidden;
    }

    /* Sidebar */
    .sidebar {
        position: fixed;
        left: -250px;
        top: 0;
        bottom: 0;
        width: 250px;
        padding-top: 150px;
        background: var(--surface-color);
        z-index: 99;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-2);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .sidebar.visible {
        left: 0;
    }

    .sidebar.collapsed {
        left: -250px;
    }

    /* Add overlay when sidebar is visible on mobile */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 99;
    }

    .sidebar-overlay.visible {
        display: block;
    }

    .nav-item {
        padding: 12px 16px;
        font-size: 14px;
        display: flex;
        align-items: center;
        gap: 12px;
        width: 100%;
        text-align: left;
        border: none;
        background: none;
        cursor: pointer;
        color: var(--text-primary);
        position: relative;
        z-index: 1001;
    }

    .nav-item i {
        font-size: 16px;
        width: 20px;
        text-align: center;
    }

    .nav-item:hover {
        background: var(--hover-color);
    }

    .nav-item.active {
        background: var(--hover-color);
        color: var(--primary-color);
    }

    .badge {
        background: var(--primary-color);
        color: white;
        padding: 2px 6px;
        border-radius: 10px;
        font-size: 12px;
        min-width: 20px;
        text-align: center;
    }

    /* Email List */
    .email-list {
        width: 100%;
        margin-left: 0;
        height: 100%;
        overflow-y: auto;
        position: relative;
        padding-top: 55px;
    }

    .email-list-header {
        gap: 8px;
        padding: 8px;
        position: sticky;
        top: 0;
        background: var(--surface-color);
        z-index: 10;
        border-bottom: 1px solid var(--border-color);
    }

    .email-list-actions {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 0 4px;
    }

    .action-group {
        display: flex;
        align-items: center !important;
        justify-content: flex-start !important;
        gap: 8px !important;
        box-sizing: border-box;
        position: relative;
    }

    .action-group input[type="checkbox"] {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 16px;
        height: 16px;
        margin: 0;
        margin: 8px;
        border: 1px solid var(--border-color);
        border-radius: 4px;
        background: var(--surface-color);
        cursor: pointer;
    }

    .action-group .icon-button {
        box-sizing: border-box;
        position: relative;
        z-index: 1;
    }

    .action-group .icon-button i {
        display: block;
        box-sizing: border-box;
    }

    .email-list-pagination {
        justify-content: flex-end;
        font-size: 13px;
    }

    .email-item {
        padding: 12px 16px;
        border-bottom: 1px solid var(--border-color);
    }

    /* Unread email styling for mobile */
    .email-item.unread {
        background-color: rgba(37, 99, 235, 0.05);
        border-left: 3px solid var(--primary-color);
    }

    .email-item.unread .sender {
        font-weight: 600;
        color: var(--text-primary);
    }

    .email-item.unread .subject {
        font-weight: 600;
        color: var(--text-primary);
    }

    .email-item.unread:hover {
        background-color: rgba(37, 99, 235, 0.08);
    }

    .email-content {
        gap: 0;
        flex-direction: column;
        align-items: flex-start;
        position: relative;
    }

    .email-header {
        flex-wrap: wrap;
        gap: 4px;
    }

    .sender {
        width: 100%;
        margin-bottom: 2px;
        font-size: 14px;
        user-select: none;
        -webkit-user-select: none;
        text-decoration: none;
    }

    .subject {
        width: 100%;
        font-size: 14px;
        font-weight: 600;
    }

    .timestamp {
        font-size: 12px;
        text-align: right;
        display: block;
    }

    .preview {
        font-size: 13px;
        -webkit-line-clamp: 2;
    }

    /* Compose Modal */
    .compose-modal {
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        transform: none;
        background: var(--surface-color);
    }

    .compose-modal .modal-content {
        width: 100%;
        height: 100%;
        border-radius: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
    }

    .modal-header {
        padding: 12px;
    }

    .modal-header h3 {
        font-size: 16px;
    }

    .compose-modal.maximized {
        transform: none;
    }

    .compose-modal.minimized {
        height: auto;
        bottom: 0;
        top: auto;
    }

    .compose-modal.minimized .modal-content {
        height: auto;
    }

    .compose-actions {
        flex-wrap: wrap;
        gap: 8px;
        padding: 8px;
    }

    .compose-actions .btn-primary {
        width: 100%;
    }

    .compose-field {
        padding: 8px;
    }

    .compose-field input,
    .compose-field textarea {
        font-size: 14px;
        padding: 8px;
    }

    /* User Menu */
    .user-dropdown {
        position: fixed;
        top: 64px;
        right: 0;
        width: 100%;
        max-width: 300px;
        border-radius: 0 0 8px 8px;
        box-shadow: var(--shadow-2);
    }

    .dropdown-header {
        padding: 12px;
    }

    .user-info {
        gap: 12px;
    }

    .user-details {
        gap: 4px;
    }

    .user-name {
        font-size: 14px;
    }

    .user-email {
        font-size: 12px;
    }

    .dropdown-item {
        padding: 12px;
        font-size: 14px;
    }

    /* Email Details */
    .email-details .modal-content {
        width: 100%;
        height: 100%;
        margin: 0;
        border-radius: 0;
    }

    .email-details-actions {
        flex-wrap: wrap;
        gap: 8px;
        padding: 8px;
    }

    .email-details-content {
        padding: 0;
    }

    .email-details-header {
        padding: 12px 0;
    }

    .email-details-header .subject {
        font-size: 16px;
    }

    .email-details-header .from,
    .email-details-header .to {
        font-size: 13px;
    }

    .email-details-header .from,
    .email-details-header .to {
        display: block;
        margin-bottom: 2px;
        color: var(--text-secondary);
    }

    .email-details-header .from strong,
    .email-details-header .to strong {
        color: var(--text-primary);
        min-width: 60px;
    }

    .email-body {
        font-size: 14px;
        line-height: 1.5;
    }

    /* Attachments */
    .email-attachments {
        padding: 12px;
    }

    .attachment {
        padding: 8px;
    }

    .attachment-info {
        gap: 4px;
    }

    .attachment-name {
        font-size: 13px;
    }

    .attachment-size {
        font-size: 12px;
    }

    /* Email List Container */
    #emails-list {
        height: calc(100% - 60px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* User Details Modal Mobile Styles */
    .user-details-modal {
        top: 0;
        background-color: rgba(255, 255, 255, 0.95);
        overflow-y: auto;
    }

    .user-details-modal .modal-content {
        width: 100%;
        height: 100%;
        max-width: none;
        border-radius: 0;
        margin: 0;
        display: flex;
        flex-direction: column;
        padding: 0;
        box-shadow: none;
        border: none;
    }

    .user-details-modal .modal-header {
        padding: 20px;
        margin: 0;
        background-color: white;
        position: sticky;
        top: 0;
        z-index: 1;
        border-bottom: 1px solid var(--border-color);
    }

    .user-details-modal .modal-header h3 {
        font-size: 20px;
    }

    .user-details-modal form {
        padding: 20px;
        gap: 0px;
        flex: 1;
        overflow-y: auto;
        background-color: white;
    }

    .user-details-modal .form-group {
        margin-bottom: 20px;
    }

    .user-details-modal .form-group:last-child {
        margin-bottom: 0;
    }

    .user-details-modal .form-group input {
        font-size: 16px; /* Prevent zoom on iOS */
        padding: 14px 16px;
    }

    .user-details-modal .form-actions {
        padding: 20px;
        background-color: white;
        border-top: 1px solid var(--border-color);
        position: sticky;
        bottom: 0;
        margin: 0;
    }

    .user-details-modal .btn-primary {
        width: 100%;
        padding: 14px 24px;
        font-size: 16px;
        text-align: center;
        justify-content: center;
    }

    /* Mobile SSO Button Styles */
    .sso-options {
        gap: 16px;
        margin-bottom: 32px;
    }
    
    .sso-button {
        padding: 16px 20px;
        font-size: 16px;
    }
    
    .sso-button i {
        font-size: 20px;
        width: 24px;
    }
    
    .login-container {
        margin: 50px auto;
        padding: 32px 24px 24px;
        max-width: 100%;
        border-radius: 0;
    }
    
    .login-footer {
        padding: 16px 24px;
        text-align: center;
        font-size: 11px;
    }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
    .login-container {
        margin: 16px;
        padding: 20px 16px;
    }

    .brand-name {
        font-size: 24px;
    }

    .subtitle {
        font-size: 14px;
    }

    .header-left .logo {
        font-size: 18px;
    }

    .user-avatar {
        width: 32px;
        height: 32px;
    }

    .email-item {
        padding: 8px;
    }

    .preview {
        display: none;
    }

    .compose-modal .modal-content {
        padding: 16px;
    }

    .compose-field input,
    .compose-field textarea {
        font-size: 14px;
    }

    .modal-actions .icon-button {
        padding: 6px;
    }

    .modal-actions .icon-button i {
        font-size: 14px;
    }

    .email-details-actions .icon-button {
        padding: 6px;
    }

    .email-details-actions .icon-button i {
        font-size: 14px;
    }
}

/* Fix for iOS Safari 100vh issue */
@supports (-webkit-touch-callout: none) {
    .app-container,
    .section,
    .main-content {
        height: -webkit-fill-available;
    }
}

/* Prevent zoom on input focus */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea {
    font-size: 16px !important;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}