/* ============================================================
   Merge PDF Tool — merge-pdf.css
   Prefix: mp-
   Accent: #8B5CF6  (violet)
   Accent RGB: 139, 92, 246
   ============================================================ */

/* ── Accent override for tool-base shared classes ─────────── */
.mp-section {
    --tool-accent: #8B5CF6;
    --tool-accent-rgb: 139, 92, 246;
    padding: 40px 0 80px;
}

/* ── Section badge ─────────────────────────────────────────── */
.mp-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 18px;
    background: rgba(139, 92, 246, 0.08);
    border: 1px solid rgba(139, 92, 246, 0.22);
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #8B5CF6;
    margin-bottom: 12px;
}

.mp-badge i {
    font-size: 0.875rem;
}

/* ── Upload Zone ───────────────────────────────────────────── */
.mp-upload-zone {
    border: 2px dashed rgba(139, 92, 246, 0.32);
    border-radius: 16px;
    background: rgba(139, 92, 246, 0.03);
    padding: 56px 24px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    outline: none;
}

.mp-upload-zone:hover,
.mp-upload-zone:focus-visible {
    border-color: rgba(139, 92, 246, 0.6);
    background: rgba(139, 92, 246, 0.07);
}

.mp-upload-zone.mp-drag-over {
    border-color: #8B5CF6;
    background: rgba(139, 92, 246, 0.1);
}

.mp-upload-icon {
    font-size: 3rem;
    color: #8B5CF6;
    opacity: 0.65;
    margin-bottom: 14px;
    display: block;
}

.mp-upload-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}

.mp-upload-sub {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0 0 10px;
}

.mp-upload-formats {
    font-size: 0.875rem;
    color: var(--text-light);
    margin: 0;
    letter-spacing: 0.01em;
}

/* ── Workspace ─────────────────────────────────────────────── */
.mp-workspace {
    margin-top: 24px;
}

/* ── File List ─────────────────────────────────────────────── */
.mp-file-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 16px;
}

/* ── File Card ─────────────────────────────────────────────── */
.mp-file-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: #FFFFFF;
    border: 1px solid rgba(100, 116, 139, 0.14);
    border-radius: 12px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
    transition: border-color 0.15s, box-shadow 0.15s;
    cursor: default;
    /* Allow dragging */
    user-select: none;
}

.mp-file-card:hover {
    border-color: rgba(139, 92, 246, 0.25);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.07);
}

.mp-file-card.mp-dragging {
    opacity: 0.45;
    border-color: rgba(139, 92, 246, 0.5);
}

.mp-file-card.mp-drag-target {
    border-color: #8B5CF6;
    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
}

/* Drag handle */
.mp-drag-handle {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #CBD5E1;
    cursor: grab;
    padding: 4px 2px;
    flex-shrink: 0;
    font-size: 1.125rem;
    transition: color 0.15s;
}

.mp-drag-handle:hover {
    color: #94A3B8;
}

.mp-drag-handle:active {
    cursor: grabbing;
}

/* Thumbnail */
.mp-thumb-wrap {
    width: 44px;
    height: 56px;
    flex-shrink: 0;
    border-radius: 5px;
    overflow: hidden;
    background: #F1F5F9;
    border: 1px solid rgba(100, 116, 139, 0.15);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mp-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.mp-thumb-placeholder {
    font-size: 1.375rem;
    color: #8B5CF6;
    opacity: 0.6;
}

/* File info */
.mp-file-info {
    flex: 1;
    min-width: 0;
}

.mp-file-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 3px;
}

.mp-file-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.8125rem;
    color: var(--text-light);
}

.mp-file-pages {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.mp-file-pages i {
    font-size: 0.8125rem;
}

/* File number badge */
.mp-file-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: rgba(139, 92, 246, 0.08);
    color: #8B5CF6;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* Delete button */
.mp-delete-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 1px solid rgba(100, 116, 139, 0.18);
    border-radius: 8px;
    background: #FFFFFF;
    color: var(--text-light);
    cursor: pointer;
    flex-shrink: 0;
    font-size: 0.9375rem;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.mp-delete-btn:hover {
    background: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.3);
    color: #DC2626;
}

/* ── Toolbar ───────────────────────────────────────────────── */
.mp-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 0;
    border-top: 1px solid rgba(100, 116, 139, 0.1);
    border-bottom: 1px solid rgba(100, 116, 139, 0.1);
    margin-bottom: 20px;
}

.mp-toolbar-left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.mp-toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mp-summary {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: rgba(139, 92, 246, 0.07);
    border: 1px solid rgba(139, 92, 246, 0.15);
    border-radius: 8px;
    padding: 5px 12px;
}

/* ── Action Panel ──────────────────────────────────────────── */
.mp-action-panel {
    background: #F8FAFC;
    border: 1px solid rgba(100, 116, 139, 0.12);
    border-radius: 14px;
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

/* Output filename row */
.mp-output-row {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.mp-output-label {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    flex-shrink: 0;
}

.mp-output-input-wrap {
    display: flex;
    align-items: center;
    flex: 1;
    min-width: 160px;
    max-width: 360px;
    background: #FFFFFF;
    border: 1px solid rgba(100, 116, 139, 0.22);
    border-radius: 9px;
    overflow: hidden;
    transition: border-color 0.15s;
}

.mp-output-input-wrap:focus-within {
    border-color: #8B5CF6;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.mp-output-input {
    flex: 1;
    padding: 8px 12px;
    font-size: 0.9375rem;
    font-family: inherit;
    color: var(--text-primary);
    background: transparent;
    border: none;
    outline: none;
}

.mp-output-input::placeholder {
    color: #94A3B8;
}

.mp-output-ext {
    padding: 0 12px 0 4px;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-light);
    white-space: nowrap;
    border-left: 1px solid rgba(100, 116, 139, 0.15);
    padding: 8px 12px;
}

/* Action row */
.mp-action-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.mp-btn-merge {
    min-width: 160px;
    padding: 11px 28px;
    font-size: 1rem;
    justify-content: center;
}

/* ── Progress ──────────────────────────────────────────────── */
.mp-progress-wrap {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mp-progress-bar {
    height: 6px;
    background: rgba(139, 92, 246, 0.12);
    border-radius: 99px;
    overflow: hidden;
}

.mp-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #8B5CF6, #A78BFA);
    border-radius: 99px;
    transition: width 0.3s ease;
}

.mp-progress-text {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-align: center;
}

/* ── Status message variants ───────────────────────────────── */
.tool-status--success {
    background: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.22);
    color: #065F46;
}

.tool-status--error {
    background: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.22);
    color: #991B1B;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 600px) {
    .mp-upload-zone {
        padding: 40px 16px;
    }

    .mp-file-card {
        gap: 10px;
        padding: 10px 12px;
    }

    .mp-thumb-wrap {
        width: 36px;
        height: 46px;
    }

    .mp-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .mp-action-panel {
        padding: 16px;
    }

    .mp-output-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .mp-output-input-wrap {
        max-width: 100%;
        width: 100%;
    }

    .mp-btn-merge {
        width: 100%;
    }
}