* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    color: #333;
    background: #f5f5f5;
}

/* Login */
.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-container h1 {
    margin-bottom: 24px;
    font-size: 24px;
}

.login-form {
    background: #fff;
    padding: 32px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    width: 360px;
}

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

.form-field label {
    display: block;
    margin-bottom: 4px;
    font-weight: 600;
    font-size: 13px;
}

.form-field input,
.form-field textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 14px;
}

.form-field textarea {
    resize: vertical;
    font-family: inherit;
}

.login-form button {
    width: 100%;
    padding: 10px;
    background: #0066cc;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
}

.login-form button:hover {
    background: #0052a3;
}

.login-form button:disabled {
    background: #999;
    cursor: not-allowed;
}

.error-message {
    margin-top: 12px;
    padding: 8px;
    background: #fee;
    color: #c00;
    border-radius: 4px;
    font-size: 13px;
}

/* Mail layout */
.mail-layout {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.mail-toolbar {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    background: #fff;
    border-bottom: 1px solid #ddd;
}

.toolbar-spacer {
    flex: 1;
}

.logout-btn {
    padding: 8px 16px;
    background: #eee;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.logout-btn:hover {
    background: #ddd;
}

.compose-btn {
    padding: 8px 16px;
    background: #0066cc;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.compose-btn:hover {
    background: #0052a3;
}

.mail-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.mail-sidebar {
    width: 250px;
    min-width: 250px;
    background: #fff;
    border-right: 1px solid #ddd;
    overflow-y: auto;
}

.mail-main {
    flex: 1;
    overflow: hidden;
    background: #fff;
    display: flex;
    flex-direction: column;
}

/* Mailbox sidebar */
.mailbox-list {
    padding: 8px 0;
}

.mailbox-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    cursor: pointer;
    user-select: none;
}

.mailbox-item:hover {
    background: #f0f0f0;
}

.mailbox-item.active {
    background: #e3f0ff;
    font-weight: 600;
}

.mailbox-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.unread-badge {
    background: #0066cc;
    color: #fff;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    margin-left: 8px;
    font-weight: 600;
}

/* Email list */
.email-list {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 0;
}

.email-row {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    border-bottom: 1px solid #eee;
    cursor: pointer;
    gap: 12px;
}

.email-row:hover {
    background: #f8f8f8;
}

.email-row.unread {
    font-weight: 700;
    background: #fafafa;
}

.email-from {
    width: 180px;
    min-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.email-subject-preview {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.email-subject {
    color: #333;
}

.email-preview {
    color: #888;
}

.attachment-icon {
    color: #666;
    font-size: 12px;
}

.email-date {
    width: 90px;
    min-width: 90px;
    text-align: right;
    color: #888;
    font-size: 13px;
}

/* Thread view */
.thread-view {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 16px;
}

.thread-toolbar {
    margin-bottom: 16px;
}

.thread-toolbar button {
    padding: 6px 12px;
    background: #eee;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
}

.thread-toolbar button:hover {
    background: #ddd;
}

.email-card {
    border: 1px solid #ddd;
    border-radius: 8px;
    margin-bottom: 16px;
    overflow: hidden;
}

.email-card-header {
    padding: 12px 16px;
    background: #f8f8f8;
    border-bottom: 1px solid #eee;
    font-size: 13px;
    line-height: 1.6;
}

.email-card-body {
    padding: 16px;
}

.email-card-body pre {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: inherit;
    font-size: 14px;
    line-height: 1.5;
}

.email-card-actions {
    padding: 8px 16px;
    border-top: 1px solid #eee;
    display: flex;
    gap: 8px;
}

.email-card-actions button {
    padding: 6px 12px;
    background: #eee;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
}

.email-card-actions button:hover {
    background: #ddd;
}

/* Compose */
.compose-view {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 16px;
    max-width: 800px;
}

.compose-view h2 {
    margin-bottom: 16px;
}

.compose-inline {
    margin: 16px 0;
    padding: 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background: #fafafa;
}

.compose-form .form-field {
    margin-bottom: 12px;
}

.compose-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

.compose-actions button {
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.compose-actions button[type="submit"] {
    background: #0066cc;
    color: #fff;
    border: none;
}

.compose-actions button[type="submit"]:hover {
    background: #0052a3;
}

.compose-actions button[type="submit"]:disabled {
    background: #999;
    cursor: not-allowed;
}

.compose-actions button[type="button"] {
    background: #eee;
    border: 1px solid #ccc;
}

.compose-actions button[type="button"]:hover {
    background: #ddd;
}

/* Loading / Empty states */
.loading,
.empty {
    padding: 24px;
    text-align: center;
    color: #888;
}