/**
 * Read Mail Box Plugin Styles
 * Designed to match matkhau.vn design system
 * 
 * Design Tokens:
 * - Primary: #fb3c59
 * - Text: #363636
 * - Background: #ffffff
 * - Border: #e5e5e5
 * - Border Radius: 4.5px
 * - Font: System fonts
 */

/* ===== CSS Variables ===== */
:root {
    --rmb-primary: #fb3c59;
    --rmb-primary-hover: #e02e4a;
    --rmb-primary-light: rgba(251, 60, 89, 0.1);
    --rmb-text: #363636;
    --rmb-text-light: #666666;
    --rmb-text-muted: #999999;
    --rmb-background: #ffffff;
    --rmb-background-alt: #f9f9f9;
    --rmb-border: #e5e5e5;
    --rmb-border-dark: #dddedf;
    --rmb-success: #28a745;
    --rmb-error: #dc3545;
    --rmb-warning: #ffc107;
    --rmb-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --rmb-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --rmb-radius: 4.5px;
    --rmb-radius-lg: 8px;
    --rmb-font: -apple-system, "system-ui", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --rmb-transition: all 0.2s ease;
}

/* ===== Container ===== */
.rmb-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 30px;
    font-family: var(--rmb-font);
    color: var(--rmb-text);
    line-height: 1.6;
}

/* ===== Help Box ===== */
.rmb-help-box {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 1px solid var(--rmb-border);
    border-radius: var(--rmb-radius-lg);
    padding: 20px;
    margin-bottom: 20px;
}

.rmb-help-box h4 {
    margin: 0 0 12px 0;
    font-size: 16px;
    font-weight: 700;
    color: var(--rmb-text);
}

.rmb-help-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.rmb-help-item {
    font-size: 14px;
    line-height: 1.6;
    color: var(--rmb-text-light);
}

.rmb-help-item strong {
    color: var(--rmb-text);
}

.rmb-help-item code {
    background: #fff;
    border: 1px solid var(--rmb-border);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    color: var(--rmb-primary);
}

.rmb-help-note {
    margin-top: 12px;
    padding: 10px 14px;
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: var(--rmb-radius);
    font-size: 13px;
    color: #856404;
}

/* ===== Tab Buttons ===== */
.rmb-tabs-wrapper {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.rmb-tab-btn {
    flex: 1;
    padding: 14px 24px;
    font-family: var(--rmb-font);
    font-size: 15px;
    font-weight: 600;
    color: var(--rmb-text-light);
    background: #fff;
    border: 2px solid var(--rmb-border);
    border-radius: var(--rmb-radius-lg);
    cursor: pointer;
    transition: var(--rmb-transition);
}

.rmb-tab-btn:hover {
    color: var(--rmb-primary);
    border-color: var(--rmb-primary);
    background: var(--rmb-primary-light);
}

.rmb-tab-btn.rmb-tab-btn-active {
    color: #fff;
    background: var(--rmb-primary);
    border-color: var(--rmb-primary);
    box-shadow: 0 4px 12px rgba(251, 60, 89, 0.3);
}

.rmb-tab-content {
    display: none;
}

.rmb-tab-content.rmb-tab-active {
    display: block;
}

/* ===== OAuth2 Result ===== */
.rmb-oauth-result {
    margin-top: 20px;
}

.rmb-oauth-success {
    background: rgba(40, 167, 69, 0.08);
    border: 1px solid rgba(40, 167, 69, 0.2);
    border-radius: var(--rmb-radius-lg);
    padding: 20px;
}

.rmb-oauth-success h4 {
    margin: 0 0 16px 0;
    font-size: 16px;
    color: var(--rmb-success);
}

.rmb-oauth-field {
    margin-bottom: 12px;
}

.rmb-oauth-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--rmb-text);
    margin-bottom: 6px;
}

.rmb-oauth-copy-wrapper {
    display: flex;
    gap: 8px;
}

.rmb-oauth-copy-wrapper input {
    flex: 1;
    padding: 10px 14px;
    font-family: monospace;
    font-size: 12px;
    border: 1px solid var(--rmb-border);
    border-radius: var(--rmb-radius);
    background: var(--rmb-background);
    color: var(--rmb-text);
}

.rmb-copy-btn {
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    background: var(--rmb-primary);
    border: none;
    border-radius: var(--rmb-radius);
    cursor: pointer;
    transition: var(--rmb-transition);
    white-space: nowrap;
}

.rmb-copy-btn:hover {
    background: var(--rmb-primary-hover);
}

.rmb-oauth-hint {
    font-size: 13px;
    color: var(--rmb-text-light);
    background: var(--rmb-background);
    padding: 10px 14px;
    border-radius: var(--rmb-radius);
    margin-top: 12px;
}

/* Secondary Button */
.rmb-button-secondary {
    background: #6c757d;
    color: #ffffff;
}

.rmb-button-secondary:hover {
    background: #5a6268;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(108, 117, 125, 0.25);
}

/* ===== Header ===== */
.rmb-header {
    margin-bottom: 24px;
    text-align: center;
}

.rmb-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--rmb-text);
    margin: 0 0 8px 0;
}

/* ===== Input Section ===== */
.rmb-input-section {
    background: var(--rmb-background);
    border: 1px solid var(--rmb-border);
    border-radius: var(--rmb-radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--rmb-shadow);
}

/* Options (Checkboxes) */
.rmb-options {
    display: flex;
    gap: 20px;
    margin-bottom: 16px;
}

.rmb-checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--rmb-text);
    user-select: none;
}

.rmb-checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--rmb-primary);
    cursor: pointer;
}

.rmb-checkbox-label span {
    font-weight: 500;
}

/* Textarea */
.rmb-input-wrapper {
    margin-bottom: 16px;
}

.rmb-textarea {
    width: 100%;
    min-height: 100px;
    padding: 14px 16px;
    font-family: var(--rmb-font);
    font-size: 14px;
    line-height: 1.5;
    color: var(--rmb-text);
    background: var(--rmb-background);
    border: 1px solid var(--rmb-border);
    border-radius: var(--rmb-radius);
    resize: vertical;
    transition: var(--rmb-transition);
    box-sizing: border-box;
}

.rmb-textarea:focus {
    outline: none;
    border-color: var(--rmb-primary);
    box-shadow: 0 0 0 3px var(--rmb-primary-light);
}

.rmb-textarea::placeholder {
    color: var(--rmb-text-muted);
}

.rmb-input-hint {
    font-size: 13px;
    color: var(--rmb-text-light);
    margin-top: 8px;
}

.rmb-input-hint code {
    background: var(--rmb-background-alt);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 12px;
    color: var(--rmb-primary);
}

/* Button Wrapper */
.rmb-button-wrapper {
    display: flex;
    justify-content: flex-end;
}

/* ===== Buttons ===== */
.rmb-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--rmb-font);
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: var(--rmb-radius);
    cursor: pointer;
    transition: var(--rmb-transition);
    text-decoration: none;
}

.rmb-button-primary {
    background: var(--rmb-primary);
    color: #ffffff;
}

.rmb-button-primary:hover {
    background: var(--rmb-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(251, 60, 89, 0.25);
}

.rmb-button-primary:active {
    transform: translateY(0);
}

.rmb-button-primary:disabled {
    background: #cccccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.rmb-button-outline {
    background: transparent;
    color: var(--rmb-primary);
    border: 2px solid var(--rmb-primary);
}

.rmb-button-outline:hover {
    background: var(--rmb-primary-light);
}

/* Button Loading State */
.rmb-btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.rmb-spinner {
    width: 18px;
    height: 18px;
    animation: rmb-spin 1s linear infinite;
}

@keyframes rmb-spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* ===== Result Section ===== */
.rmb-result-section {
    background: var(--rmb-background);
    border: 1px solid var(--rmb-border);
    border-radius: var(--rmb-radius-lg);
    overflow: hidden;
    box-shadow: var(--rmb-shadow);
}

.rmb-email-list-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--rmb-background-alt);
    border-bottom: 1px solid var(--rmb-border);
}

.rmb-section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--rmb-text);
    margin: 0;
}

.rmb-email-count {
    font-size: 13px;
    color: var(--rmb-text-muted);
    background: var(--rmb-background);
    padding: 4px 10px;
    border-radius: 12px;
    border: 1px solid var(--rmb-border);
}

/* Email List */
.rmb-email-list {
    max-height: 500px;
    overflow-y: auto;
}

.rmb-email-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--rmb-border);
    cursor: pointer;
    transition: var(--rmb-transition);
}

.rmb-email-item:last-child {
    border-bottom: none;
}

.rmb-email-item:hover {
    background: var(--rmb-background-alt);
}

.rmb-email-item.rmb-unread {
    background: var(--rmb-primary-light);
}

.rmb-email-item.rmb-unread:hover {
    background: rgba(251, 60, 89, 0.15);
}

.rmb-email-avatar {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--rmb-primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    text-transform: uppercase;
}

.rmb-email-content {
    flex: 1;
    min-width: 0;
}

.rmb-email-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 4px;
}

.rmb-email-sender {
    font-size: 14px;
    font-weight: 600;
    color: var(--rmb-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rmb-email-date {
    font-size: 12px;
    color: var(--rmb-text-muted);
    white-space: nowrap;
}

.rmb-email-subject {
    font-size: 14px;
    font-weight: 500;
    color: var(--rmb-text);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rmb-email-preview {
    font-size: 13px;
    color: var(--rmb-text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Empty State */
.rmb-empty-state {
    padding: 48px 24px;
    text-align: center;
}

.rmb-empty-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.rmb-empty-text {
    font-size: 15px;
    color: var(--rmb-text-muted);
}

/* ===== Modal ===== */
.rmb-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.rmb-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.rmb-modal-content {
    position: relative;
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    background: var(--rmb-background);
    border-radius: var(--rmb-radius-lg);
    box-shadow: var(--rmb-shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: rmb-modal-in 0.2s ease;
}

@keyframes rmb-modal-in {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-20px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.rmb-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--rmb-border);
    background: var(--rmb-background-alt);
}

.rmb-modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--rmb-text);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    padding-right: 16px;
}

.rmb-modal-close {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--rmb-text-light);
    cursor: pointer;
    transition: var(--rmb-transition);
}

.rmb-modal-close:hover {
    background: var(--rmb-border);
    color: var(--rmb-text);
}

.rmb-modal-meta {
    padding: 16px 20px;
    background: var(--rmb-background-alt);
    font-size: 13px;
    color: var(--rmb-text-light);
}

.rmb-modal-meta-row {
    display: flex;
    gap: 8px;
    margin-bottom: 4px;
}

.rmb-modal-meta-row:last-child {
    margin-bottom: 0;
}

.rmb-modal-meta-label {
    font-weight: 600;
    color: var(--rmb-text);
    min-width: 60px;
}

.rmb-modal-body {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    font-size: 14px;
    line-height: 1.7;
}

.rmb-modal-body img {
    max-width: 100%;
    height: auto;
}

.rmb-modal-body a {
    color: var(--rmb-primary);
    text-decoration: none;
}

.rmb-modal-body a:hover {
    text-decoration: underline;
}

/* ===== Messages ===== */
.rmb-message {
    padding: 14px 18px;
    border-radius: var(--rmb-radius);
    font-size: 14px;
    margin-top: 16px;
}

.rmb-message-error {
    background: rgba(220, 53, 69, 0.1);
    color: var(--rmb-error);
    border: 1px solid rgba(220, 53, 69, 0.2);
}

.rmb-message-success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--rmb-success);
    border: 1px solid rgba(40, 167, 69, 0.2);
}

.rmb-message-warning {
    background: rgba(255, 193, 7, 0.1);
    color: #856404;
    border: 1px solid rgba(255, 193, 7, 0.2);
}

/* ===== Loading Skeleton ===== */
.rmb-skeleton {
    background: linear-gradient(90deg, var(--rmb-background-alt) 25%, #efefef 50%, var(--rmb-background-alt) 75%);
    background-size: 200% 100%;
    animation: rmb-skeleton-loading 1.5s infinite;
    border-radius: var(--rmb-radius);
}

@keyframes rmb-skeleton-loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.rmb-skeleton-item {
    padding: 16px 20px;
    border-bottom: 1px solid var(--rmb-border);
}

.rmb-skeleton-item:last-child {
    border-bottom: none;
}

.rmb-skeleton-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
}

.rmb-skeleton-line {
    height: 14px;
    margin-bottom: 8px;
}

.rmb-skeleton-line:last-child {
    margin-bottom: 0;
}

.rmb-skeleton-line-short {
    width: 40%;
}

.rmb-skeleton-line-medium {
    width: 70%;
}

.rmb-skeleton-line-long {
    width: 90%;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .rmb-container {
        padding: 16px;
    }

    .rmb-title {
        font-size: 22px;
    }

    .rmb-input-section {
        padding: 16px;
    }

    .rmb-options {
        flex-direction: column;
        gap: 12px;
    }

    .rmb-button-wrapper {
        justify-content: stretch;
    }

    .rmb-button {
        width: 100%;
    }

    .rmb-email-item {
        padding: 12px 16px;
        gap: 12px;
    }

    .rmb-email-avatar {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .rmb-modal {
        padding: 0;
    }

    .rmb-modal-content {
        max-height: 100vh;
        border-radius: 0;
    }

    .rmb-modal-header {
        padding: 12px 16px;
    }

    .rmb-modal-title {
        font-size: 16px;
    }

    .rmb-modal-body {
        padding: 16px;
    }
}

/* ===== Scrollbar ===== */
.rmb-email-list::-webkit-scrollbar,
.rmb-modal-body::-webkit-scrollbar {
    width: 8px;
}

.rmb-email-list::-webkit-scrollbar-track,
.rmb-modal-body::-webkit-scrollbar-track {
    background: var(--rmb-background-alt);
}

.rmb-email-list::-webkit-scrollbar-thumb,
.rmb-modal-body::-webkit-scrollbar-thumb {
    background: var(--rmb-border-dark);
    border-radius: 4px;
}

.rmb-email-list::-webkit-scrollbar-thumb:hover,
.rmb-modal-body::-webkit-scrollbar-thumb:hover {
    background: var(--rmb-text-muted);
}