/* Mail Manager Layout */
.mail-wrapper {
    display: flex;
    height: calc(100vh - 36px);
    margin-top: 36px;
    background: #fff;
    overflow: hidden;
}

.mail-sidebar {
    display: none; /* 사이드바 삭제 */
}

.mail-list-area {
    width: 320px;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #fff;
}

.mail-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: #f8f9fa;
    flex-shrink: 0;
    width: 100%;
}

.mail-tab {
    flex: 1;
    padding: 12px 0;
    text-align: center;
    cursor: pointer;
    font-weight: 700;
    color: #a0aec0;
    font-size: 11px;
    transition: all 0.2s ease;
    border-bottom: 2px solid transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.mail-tab:hover {
    background: #edf2f7;
    color: var(--primary-color);
}

.mail-tab.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    background: #fff;
}

.search-bar {
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-color);
    background: #fff;
    flex-shrink: 0;
    margin-bottom: 8px; /* 하단 리스트와 간격 추가 */
}

.mail-items-container {
    flex: 1;
    overflow-y: auto;
}

.mail-item {
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: 0.2s;
}

.mail-item:hover {
    background: var(--bg-muted);
}

.mail-item.active {
    background: #E9EEED;
    border-left: 4px solid var(--primary-color);
}

.address-book-footer {
    padding: 12px;
    border-top: 1px solid var(--border-color);
    background: #fff;
    flex-shrink: 0;
}

.mail-content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
}

/* Mail Preview & Toggle Handle */
.mail-preview-area {
    width: 0;
    background: #f1f3f5;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    overflow: visible;
    position: relative;
    border-left: 0px solid transparent;
}

.mail-preview-area.active {
    width: 500px;
    border-left: 1px solid var(--border-color);
}

/* 닫혔을 때 내부 내용이 비치는 것 방지 */
.mail-preview-area > *:not(.preview-toggle-handle) {
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}

.mail-preview-area.active > * {
    opacity: 1;
    pointer-events: auto;
}

.preview-toggle-handle {
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 60px;
    background: var(--primary-color);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 8px 0 0 8px;
    font-size: 10px;
    box-shadow: -2px 0 5px rgba(0,0,0,0.1);
    z-index: 10;
}

.preview-toggle-handle:hover {
    background: var(--primary-lv-8);
}

.preview-header {
    padding: 12px 16px;
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.preview-header h3 {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-color);
}

.preview-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.a4-container {
    width: 100%;
    background: #fff;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    position: relative;
    aspect-ratio: 1 / 1.414; /* A4 Ratio */
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-placeholder {
    color: var(--text-sub);
    font-size: 13px;
    text-align: center;
    padding: 20px;
}

.preview-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.mail-content-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
}

.mail-body {
    padding: var(--space-lg);
    line-height: 1.6;
    min-height: 200px;
}

/* Attachments & AI Analysis */
.attachment-area {
    padding: var(--space-lg);
    border-top: 1px solid var(--border-color);
    background: var(--bg-muted);
}

.attachment-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: #fff;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    margin-bottom: var(--space-sm);
    cursor: pointer;
    transition: 0.2s;
}

.attachment-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--box-shadow);
}

.attachment-item.active {
    background: var(--primary-lv-0);
    border-color: var(--primary-color);
}

.file-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.file-details {
    flex: 1;
    overflow: hidden;
}

.file-name {
    font-size: 12px;
    font-weight: 700;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-size {
    font-size: 10px;
    color: var(--text-sub);
}

.btn-group {
    display: flex;
    gap: var(--space-xs);
    flex: 1;
    justify-content: flex-end;
}

.btn-upload {
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
}

.btn-ai {
    background: var(--ai-gradient);
}

.btn-normal {
    background: var(--primary-color);
}

.ai-recommend {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 700;
    margin-left: 10px;
}

.ai-recommend.smart-mode {
    background: linear-gradient(135deg, #f6f8ff 0%, #f0f4ff 100%);
    color: #4a69bd;
    border: 1px solid #d1d9ff;
}

.ai-recommend.manual-mode {
    background: var(--hover-bg);
    color: var(--text-sub);
    border: 1px dashed var(--border-color);
    font-weight: 400;
}

.path-display {
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.file-log-area {
    display: none;
    width: 100%;
    margin-top: 10px;
    background: #1a202c;
    border-radius: 4px;
    padding: 12px;
    font-family: monospace;
    font-size: 11px;
    color: #cbd5e0;
}

.file-log-area.active {
    display: block;
}

.log-line {
    margin-bottom: 2px;
}

.log-success {
    color: #48bb78;
    font-weight: 700;
}

.log-info {
    color: #63b3ed;
}

/* Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 20px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 20px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked+.slider {
    background: var(--ai-gradient);
}

input:checked+.slider:before {
    transform: translateX(14px);
}

.ai-toggle-wrap {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-sub);
}

input:checked~.ai-label {
    color: #6d3dc2;
}