/* public/assets/css/pdf/pdf-to-long-image.css */

.pdf-long-wrapper { padding: 32px 16px; position: relative; }
.pdf-long-header { text-align: center; margin-bottom: 32px; }
.pdf-long-title { font-size: 2.2rem; font-weight: 800; color: var(--text-main); margin-bottom: 12px; }
.pdf-long-subtitle { font-size: 1.05rem; color: var(--text-muted); max-width: 700px; margin: 0 auto; line-height: 1.6; }

.pdf-long-workspace { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 380px 1fr; gap: 32px; align-items: start; }

/* ==========================================
   左侧：设置与文件上传
   ========================================== */
.pdf-long-controls { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 16px; padding: 24px; box-shadow: 0 4px 15px rgba(0,0,0,0.03); display: flex; flex-direction: column; gap: 24px; }
.control-section h4 { margin: 0 0 16px 0; font-size: 1rem; color: var(--text-main); border-bottom: 2px solid rgba(220, 38, 38, 0.2); padding-bottom: 8px; display: inline-block; }

/* 拖拽上传区 */
.file-drop-area { border: 2px dashed #dc2626; border-radius: 12px; padding: 40px 20px; text-align: center; cursor: pointer; transition: 0.3s; background: rgba(220, 38, 38, 0.03); position: relative; overflow: hidden; }
.file-drop-area:hover, .file-drop-area.drag-over { background: rgba(220, 38, 38, 0.08); border-color: #b91c1c; }
.drop-text { margin-top: 12px; font-weight: 600; color: var(--text-main); font-size: 0.95rem; word-break: break-all; }
.file-input-hidden { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }

/* 表单组合 */
.input-group { margin-bottom: 16px; display: flex; flex-direction: column; gap: 6px; }
.input-group label { font-size: 0.85rem; font-weight: 700; color: var(--text-muted); }
.input-group input, .input-group select { width: 100%; padding: 10px 12px; border: 1px solid var(--border-color); border-radius: 8px; background: var(--bg-body); color: var(--text-main); font-size: 0.95rem; outline: none; transition: 0.2s; box-sizing: border-box; }
.input-group input:focus, .input-group select:focus { border-color: #dc2626; }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* 按钮 */
.pdf-btn-primary { background: #dc2626; color: #fff; border: none; padding: 14px 20px; font-size: 1.05rem; font-weight: 800; border-radius: 12px; cursor: pointer; transition: 0.2s; box-shadow: 0 4px 10px rgba(220, 38, 38, 0.3); width: 100%; }
.pdf-btn-primary:hover:not(:disabled) { background: #b91c1c; transform: translateY(-2px); }
.pdf-btn-primary:disabled { background: #94a3b8; cursor: not-allowed; box-shadow: none; opacity: 0.7; }

.pdf-btn-success { background: #16a34a; color: #fff; border: none; padding: 16px 24px; font-size: 1.1rem; font-weight: 800; border-radius: 12px; cursor: pointer; transition: 0.2s; box-shadow: 0 4px 15px rgba(22, 163, 74, 0.3); width: 100%; }
.pdf-btn-success:hover { background: #15803d; transform: translateY(-2px); }

/* ==========================================
   右侧：进度与预览区
   ========================================== */
.pdf-long-preview { display: flex; flex-direction: column; gap: 24px; }

.status-box { background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 12px; padding: 24px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 16px; box-shadow: 0 4px 15px rgba(0,0,0,0.03); }
.status-text { font-size: 1.1rem; font-weight: 700; color: var(--text-main); }

.loader-spinner { width: 36px; height: 36px; border: 4px solid var(--border-color); border-top-color: #dc2626; border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.progress-bar-wrap { width: 100%; max-width: 400px; height: 8px; background: var(--bg-body); border-radius: 4px; overflow: hidden; }
.progress-bar-fill { width: 0%; height: 100%; background: #dc2626; transition: width 0.3s ease; }

.preview-container { background: var(--bg-body); border: 1px dashed var(--border-color); border-radius: 12px; padding: 12px; max-height: 600px; overflow-y: auto; text-align: center; }
.preview-container::-webkit-scrollbar { width: 8px; }
.preview-container::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
#outImage { max-width: 100%; height: auto; border: 1px solid var(--border-color); box-shadow: 0 4px 10px rgba(0,0,0,0.1); border-radius: 4px; }

.pdf-info-card { background: var(--bg-surface); padding: 24px; border-radius: 16px; border: 1px solid var(--border-color); box-sizing: border-box; max-width: 1100px; margin: 0 auto; }

/* 📱 响应式 */
@media (max-width: 850px) {
    .pdf-long-workspace { grid-template-columns: 1fr; }
}