/* ============================================================
   Split PDF Tool — split-pdf.css
   Prefix: sp-
   Accent: #8B5CF6 (website violet)
   Base: tool-base.css provides buttons, status, inputs
   ============================================================ */

/* --- Accent Token ----------------------------------------- */
.sp-section {
    --tool-accent: #8B5CF6;
    --tool-accent-rgb: 139, 92, 246;
    padding: 48px 0 80px;
}

/* --- Badge ------------------------------------------------- */
.sp-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(139, 92, 246, 0.08);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 50px;
    padding: 7px 18px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #8B5CF6;
    margin-bottom: 12px;
}

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

/* --- Upload Zone ------------------------------------------- */
.sp-upload-zone {
    border: 2px dashed rgba(139, 92, 246, 0.35);
    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;
}

.sp-upload-zone:hover,
.sp-upload-zone:focus {
    border-color: rgba(139, 92, 246, 0.6);
    background: rgba(139, 92, 246, 0.06);
}

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

.sp-upload-icon {
    font-size: 3rem;
    color: #8B5CF6;
    opacity: 0.7;
    margin-bottom: 14px;
    display: block;
}

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

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

.sp-upload-formats {
    font-size: 0.9375rem;
    color: var(--text-light);
    margin: 0;
}

/* --- Workspace -------------------------------------------- */
.sp-workspace {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* --- File Bar --------------------------------------------- */
.sp-file-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 18px;
    background: #F8FAFC;
    border: 1px solid rgba(100, 116, 139, 0.14);
    border-radius: 12px;
}

.sp-file-info {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.sp-file-icon {
    font-size: 1.75rem;
    color: #8B5CF6;
    flex-shrink: 0;
}

.sp-file-details {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.sp-file-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 400px;
}

.sp-file-meta {
    font-size: 0.8125rem;
    color: var(--text-light);
}

/* --- Mode Tabs -------------------------------------------- */
.sp-modes {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.sp-mode-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 18px;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: inherit;
    border-radius: 10px;
    border: 1.5px solid rgba(100, 116, 139, 0.22);
    background: #FFFFFF;
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.sp-mode-btn i {
    font-size: 1rem;
}

.sp-mode-btn:hover {
    border-color: rgba(139, 92, 246, 0.4);
    color: #8B5CF6;
    background: rgba(139, 92, 246, 0.04);
}

.sp-mode-btn--active {
    border-color: #8B5CF6;
    background: rgba(139, 92, 246, 0.08);
    color: #8B5CF6;
}

/* --- Mode Panels ------------------------------------------ */
.sp-panel {
    background: #F8FAFC;
    border: 1px solid rgba(100, 116, 139, 0.14);
    border-radius: 12px;
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sp-panel--hidden {
    display: none;
}

.sp-panel-label {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sp-panel-label--inline {
    flex-direction: row;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.sp-panel-hint {
    font-weight: 400;
    color: var(--text-light);
    font-size: 0.875rem;
}

.sp-ranges-input {
    width: 100%;
    max-width: 400px;
    font-size: 1rem;
    padding: 9px 14px;
}

.sp-every-input {
    width: 80px;
    text-align: center;
    font-size: 1rem;
    padding: 7px 10px;
}

.sp-panel-note {
    font-size: 0.875rem;
    color: var(--text-light);
    min-height: 1.2em;
    line-height: 1.5;
}

.sp-panel-note--error {
    color: #dc2626;
}

.sp-panel-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.5;
}

.sp-panel-desc i {
    font-size: 1.1rem;
    color: #8B5CF6;
    flex-shrink: 0;
}

/* --- Output Row ------------------------------------------- */
.sp-output-row {
    display: flex;
    align-items: flex-end;
    gap: 16px;
    flex-wrap: wrap;
}

.sp-output-name-wrap {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sp-output-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.sp-output-input-wrap {
    display: flex;
    align-items: center;
}

.sp-output-input {
    border-radius: 8px 0 0 8px !important;
    border-right: none !important;
    width: 180px;
    font-size: 0.9375rem;
    padding: 8px 12px;
}

.sp-output-ext {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    background: #F1F5F9;
    border: 1px solid rgba(100, 116, 139, 0.22);
    border-radius: 0 8px 8px 0;
    font-size: 0.875rem;
    color: var(--text-light);
    white-space: nowrap;
    height: 100%;
}

.sp-action-btns {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

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

.sp-progress-bar {
    height: 6px;
    background: rgba(139, 92, 246, 0.12);
    border-radius: 999px;
    overflow: hidden;
}

.sp-progress-fill {
    height: 100%;
    width: 0%;
    background: #8B5CF6;
    border-radius: 999px;
    transition: width 0.25s ease;
}

.sp-progress-text {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* --- Results ---------------------------------------------- */
.sp-results {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.sp-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.sp-results-title {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sp-results-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sp-result-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    background: #FFFFFF;
    border: 1px solid rgba(100, 116, 139, 0.14);
    border-radius: 10px;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.sp-result-item:hover {
    border-color: rgba(139, 92, 246, 0.28);
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.06);
}

.sp-result-file-info {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.sp-result-icon {
    font-size: 1.5rem;
    color: #8B5CF6;
    flex-shrink: 0;
}

.sp-result-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.sp-result-name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sp-result-meta {
    font-size: 0.8125rem;
    color: var(--text-light);
}

/* --- Responsive ------------------------------------------- */
@media (max-width: 640px) {
    .sp-modes {
        flex-direction: column;
    }

    .sp-mode-btn {
        width: 100%;
        justify-content: center;
    }

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

    .sp-file-name {
        max-width: 180px;
    }

    .sp-output-input {
        width: 140px;
    }

    .sp-results-header {
        flex-direction: column;
        align-items: flex-start;
    }
}