/* === BULK COMPOSE PAGE === */
.bulk-layout {
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    flex: 1;
    overflow: hidden;
    margin-top: 56px;
    height: calc(100vh - 56px);
}

/* Filters panel */
.bulk-filters {
    background: #f8f9fa;
    border-right: 1px solid #e0e0e0;
    padding: 1.25rem;
    overflow-y: auto;
}

.bulk-filters h3 {
    font-size: 1rem;
    color: #333;
    margin: 0 0 1rem;
}

.filter-group {
    margin-bottom: 1rem;
}

.filter-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: #555;
    margin-bottom: 0.3rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.filter-group select {
    width: 100%;
    padding: 0.45rem 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.85rem;
    background: white;
}

.preview-btn {
    width: 100%;
    padding: 0.6rem;
    border: none;
    border-radius: 4px;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    margin-top: 0.5rem;
    transition: opacity 0.15s;
}

.preview-btn:hover { opacity: 0.9; }
.preview-btn:disabled { opacity: 0.5; cursor: default; }

.clear-btn {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: white;
    font-size: 0.85rem;
    cursor: pointer;
    color: #555;
    margin-top: 0.5rem;
}

.clear-btn:hover { background: #f0f0f0; }

/* Compose panel */
.bulk-compose {
    padding: 1.25rem;
    overflow-y: auto;
    background: white;
}

.bulk-compose h3 {
    font-size: 1rem;
    color: #333;
    margin: 0 0 1rem;
}

.template-picker {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: #f0f4ff;
    border-radius: 6px;
}

.template-picker label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #555;
    white-space: nowrap;
}

.template-picker select {
    flex: 1;
    padding: 0.4rem 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.85rem;
}

.bulk-compose .form-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.bulk-compose .form-row label {
    font-weight: 600;
    font-size: 0.9rem;
    color: #555;
    min-width: 60px;
}

.bulk-compose .form-row input[type="text"] {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
    outline: none;
}

.bulk-compose .compose-body {
    margin-bottom: 0.75rem;
}

.compose-options-row {
    margin-bottom: 0.75rem;
}

.bulk-compose .compose-actions {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-top: 1px solid #e0e0e0;
}

.send-result {
    margin-top: 0.75rem;
    padding: 0.75rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

.send-result.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.send-result.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Preview panel */
.bulk-preview {
    background: #f8f9fa;
    border-left: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.preview-header {
    padding: 1.25rem 1.25rem 0.75rem;
    border-bottom: 1px solid #e0e0e0;
}

.preview-header h3 {
    font-size: 1rem;
    color: #333;
    margin: 0;
}

.recipient-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.recipient-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0.75rem;
    border-bottom: 1px solid #f0f0f0;
    font-size: 0.85rem;
}

.recipient-row .recipient-name {
    color: #333;
    font-weight: 500;
}

.recipient-row .recipient-course {
    color: #888;
    font-size: 0.75rem;
    text-align: right;
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.recipient-row.more {
    color: #888;
    font-style: italic;
    justify-content: center;
    padding: 0.75rem;
}

.bulk-preview .empty-state {
    padding: 2rem 1rem;
    text-align: center;
    color: #999;
    font-size: 0.9rem;
}

.bulk-preview .loading-state {
    padding: 2rem 1rem;
    text-align: center;
    color: #999;
}

/* Theme overrides for preview button */
.mail-page.theme-nda .preview-btn { background: #0b3b85; }
.mail-page.theme-nma .preview-btn { background: #ff4757; }
.mail-page.theme-bom .preview-btn { background: #e53e3e; }

/* Responsive */
@media (max-width: 1024px) {
    .bulk-layout {
        grid-template-columns: 240px 1fr 260px;
    }
}

@media (max-width: 768px) {
    .bulk-layout {
        grid-template-columns: 1fr;
    }
    .bulk-filters, .bulk-preview {
        display: none;
    }
}

/* Save group */
.save-group-section {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}
.group-name-input {
    flex: 1;
    padding: 0.4rem 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.85rem;
}
.save-group-btn {
    padding: 0.4rem 0.75rem;
    border: none;
    border-radius: 4px;
    background: #28a745;
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
.save-group-btn:hover { opacity: 0.9; }
.save-group-btn:disabled { opacity: 0.5; cursor: default; }
.group-message {
    margin-top: 0.5rem;
    padding: 0.4rem 0.75rem;
    background: #d4edda;
    color: #155724;
    border-radius: 4px;
    font-size: 0.8rem;
}

/* Multi-course */
.multi-course-link {
    background: none;
    border: none;
    color: #0b3b85;
    font-size: 0.8rem;
    cursor: pointer;
    padding: 0.3rem 0;
    text-decoration: underline;
}
.multi-course-link:hover { opacity: 0.8; }
.selected-courses {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-bottom: 0.5rem;
}
.course-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.15rem 0.5rem;
    background: #e8f0fe;
    border-radius: 10px;
    font-size: 0.75rem;
    color: #333;
}
.course-chip button {
    background: none;
    border: none;
    color: #888;
    cursor: pointer;
    font-size: 0.7rem;
    padding: 0;
}

/* Popup overlay */
.popup-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4);
    z-index: 1000;
}
.popup-modal {
    position: fixed;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: 8px;
    width: 500px;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
    z-index: 1001;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}
.popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid #e0e0e0;
}
.popup-header h3 { margin: 0; font-size: 1.1rem; }
.popup-header .close-btn {
    background: none;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    color: #888;
}
.popup-search {
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid #f0f0f0;
}
.popup-search input {
    width: 100%;
    padding: 0.45rem 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
    box-sizing: border-box;
}
.popup-body {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 1.25rem;
    max-height: 400px;
}
.course-check-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0;
    border-bottom: 1px solid #f8f8f8;
    font-size: 0.85rem;
    cursor: pointer;
}
.course-check-item input[type=checkbox] { flex-shrink: 0; }
.course-type-tag {
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
    background: #f0f0f0;
    border-radius: 8px;
    color: #888;
    margin-left: auto;
}
.popup-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    border-top: 1px solid #e0e0e0;
    font-size: 0.85rem;
    color: #666;
}

/* Group select row */
.group-select-row {
    display: flex;
    gap: 0.4rem;
}
.group-select-row select { flex: 1; }
.delete-group-btn {
    padding: 0.3rem 0.6rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: white;
    color: #e53e3e;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
}
.delete-group-btn:hover { background: #fff0f0; }
.show-shared-toggle {
    font-size: 0.8rem;
    color: #666;
    margin-top: 0.3rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}
.share-toggle {
    font-size: 0.8rem;
    color: #666;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    white-space: nowrap;
}