.split-page{padding-bottom:64px}
.split-breadcrumb{padding-top:22px;padding-bottom:18px;display:flex;align-items:center;gap:9px;color:var(--muted);font-size:.87rem}
.split-breadcrumb a{color:var(--primary);font-weight:700}
.split-heading{padding:8px 0 24px;display:flex;align-items:center;gap:16px}
.split-title-icon{width:64px;height:64px;flex:0 0 64px;display:grid;place-items:center;border-radius:16px;background:#fff0f0;color:#e72727}
.split-title-icon svg{width:42px;height:42px}
.split-heading h1{margin:0;font-size:clamp(2rem,5vw,3rem);letter-spacing:-.045em;line-height:1.05}
.split-heading p{margin:7px 0 0;color:var(--muted)}
.split-promo{margin-bottom:18px}
.split-workspace{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(300px,.9fr);border:1px solid var(--border);border-radius:20px;background:var(--surface);overflow:hidden;box-shadow:0 10px 30px rgba(20,35,50,.05)}
.split-main{padding:20px;border-right:1px solid var(--border)}
.split-dropzone{min-height:300px;padding:36px 24px;display:grid;place-items:center;align-content:center;text-align:center;border:2px dashed #b5c3d0;border-radius:16px;background:#fbfcfd;cursor:pointer;transition:.18s ease}
.split-dropzone:hover,.split-dropzone.drag-over{border-color:var(--primary);background:#f5fbf8}
.split-drop-icon{width:78px;height:78px;display:grid;place-items:center;border:2px solid #aab7c4;border-radius:14px;background:#fff;color:#e72727;font-weight:900;font-size:1.05rem}
.split-dropzone h2{margin:16px 0 5px;font-size:1.18rem}
.split-dropzone p{margin:0 0 20px;color:var(--muted)}
.split-select-button{border:0;border-radius:12px;padding:13px 20px;background:#e72727;color:#fff;font-weight:850;cursor:pointer}
.split-file-info{margin-top:16px;padding:13px 15px;display:flex;justify-content:space-between;align-items:center;gap:12px;border:1px solid var(--border);border-radius:12px;background:#fff}
.split-file-info strong{display:block;font-size:.9rem}
.split-file-info span{color:var(--muted);font-size:.76rem}
.split-file-info button{border:1px solid var(--border);border-radius:9px;padding:7px 10px;background:#fff;color:var(--primary);font-weight:800;cursor:pointer}
.split-options{margin-top:20px}
.split-options>h2{margin:0 0 14px;font-size:1.08rem}
.split-mode-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.split-mode-card{padding:14px;display:flex;gap:10px;border:1px solid var(--border);border-radius:12px;background:#fff;cursor:pointer}
.split-mode-card strong{display:block;font-size:.88rem}
.split-mode-card p{margin:3px 0 0;color:var(--muted);font-size:.76rem}
.split-range-box{margin-top:16px}
.split-range-box label{display:block;margin-bottom:7px;font-size:.86rem;font-weight:800}
.split-range-box input{width:100%;padding:12px 13px;border:1px solid var(--border);border-radius:10px;font:inherit}
.split-range-box small{display:block;margin-top:6px;color:var(--muted);font-size:.75rem}
.split-how{margin-top:20px;padding:18px;border:1px solid var(--border);border-radius:14px;background:#fff}
.split-how>h2{margin:0 0 15px;font-size:1rem}
.split-how-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.split-how-grid article{display:flex;gap:10px}
.split-how-grid article>span{width:28px;height:28px;flex:0 0 28px;display:grid;place-items:center;border-radius:50%;background:var(--primary);color:#fff;font-size:.76rem;font-weight:900}
.split-how-grid h3{margin:1px 0 4px;font-size:.86rem}
.split-how-grid p{margin:0;color:var(--muted);font-size:.78rem;line-height:1.5}
.split-sidebar{padding:24px 22px;display:flex;flex-direction:column}
.split-sidebar-heading{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.split-sidebar-heading h2{margin:0;font-size:1.02rem}
.split-sidebar-heading p{margin:0;color:var(--muted);font-size:.78rem}
.split-empty-state{margin-top:18px;padding:14px;display:flex;gap:10px;border:1px solid #cde0f7;border-radius:11px;background:#f4f9ff;color:#315f96;font-size:.82rem}
.split-empty-state p{margin:0}
.split-benefits{margin:26px 0;display:grid;gap:20px}
.split-benefits article{display:flex;gap:11px}
.benefit-icon{width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;border-radius:50%;border:2px solid #24a261;color:#14864c;font-weight:900}
.split-benefits strong{display:block;font-size:.86rem}
.split-benefits p{margin:3px 0 0;color:var(--muted);font-size:.77rem;line-height:1.4}
.split-message{margin:auto 0 12px;padding:11px 12px;border-radius:10px;font-size:.8rem}
.split-message.error{border:1px solid #f0cccc;background:#fff2f2;color:#963939}
.split-message.success{border:1px solid #cce7dc;background:#edf8f3;color:#1f654f}
.split-primary,.split-secondary{width:100%;min-height:46px;border-radius:11px;font-weight:850;cursor:pointer}
.split-primary{margin-top:auto;border:0;background:#e72727;color:#fff}
.split-primary:disabled{background:#f5c7c7;color:#b66c6c;cursor:not-allowed}
.split-secondary{margin-top:10px;border:1px solid var(--border);background:#fff;color:var(--text)}
.split-secondary:disabled{opacity:.5;cursor:not-allowed}
.split-tip{margin-top:20px;padding:15px 18px;display:flex;gap:11px;border:1px solid #f1dede;border-radius:13px;background:#fff8f8}
.split-tip p{margin:0;font-size:.84rem}
.split-info{max-width:920px;padding-top:48px}
.split-info h2{margin:26px 0 8px;font-size:1.35rem}
.split-info p{margin:0;color:var(--muted)}
@media(max-width:900px){.split-workspace{grid-template-columns:1fr}.split-main{border-right:0;border-bottom:1px solid var(--border)}.split-how-grid{grid-template-columns:1fr}.split-primary{margin-top:10px}}
@media(max-width:620px){.split-heading{align-items:flex-start}.split-mode-grid{grid-template-columns:1fr}.split-main,.split-sidebar{padding:16px}.split-file-info{align-items:flex-start;flex-direction:column}}