:root{--bg:#f4f7fb;--card:#fff;--text:#142033;--muted:#6c788c;--line:#dce3ee;--accent:#185adb;--accent2:#0d46b3;--good:#16794b;--warn:#a96200;--shadow:0 12px 34px rgba(31,46,80,.08)}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#eef4ff 0,#f7f9fc 300px,#f4f7fb 100%);font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--text)}.app-shell{max-width:1180px;margin:auto;padding:32px 22px 40px}.topbar{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;margin-bottom:22px}.eyebrow{font-size:12px;letter-spacing:.13em;font-weight:800;color:var(--accent);margin-bottom:6px}.topbar h1{font-size:30px;margin:0 0 6px}.topbar p{margin:0;color:var(--muted);max-width:720px}.badge{padding:9px 13px;border:1px solid #cbd9fa;background:#f7faff;border-radius:999px;color:var(--accent);font-size:13px;font-weight:700;white-space:nowrap}.card{background:var(--card);border:1px solid rgba(214,223,236,.9);border-radius:18px;padding:22px;margin-bottom:18px;box-shadow:var(--shadow)}.section-title{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:18px}.section-title>div:first-child{display:flex;align-items:center;gap:10px}.section-title h2{font-size:18px;margin:0}.step{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:#eaf1ff;color:var(--accent);font-weight:800}.status{font-size:13px;font-weight:700}.status.muted{color:var(--muted)}.status.success{color:var(--good)}.dropzone{min-height:150px;border:2px dashed #c8d4e7;border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;cursor:pointer;transition:.2s;background:#fbfcff}.dropzone.drag{border-color:var(--accent);background:#f2f6ff}.dropzone .drop-icon{font-size:32px;color:var(--accent);font-weight:300}.dropzone 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16px;font-size:13px;font-weight:750;cursor:pointer}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.primary{background:var(--accent);color:#fff}.btn.primary:hover:not(:disabled){background:var(--accent2)}.btn.secondary{background:#eaf1ff;color:var(--accent)}.btn.ghost{background:#f2f4f8;color:#48556a}.mini-actions{display:flex;gap:12px}.link-btn{border:0;background:transparent;color:var(--accent);font-weight:700;cursor:pointer}.sheet-list{display:grid;gap:9px}.sheet-item{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;border:1px solid var(--line);border-radius:12px;padding:12px 14px}.sheet-item.disabled{opacity:.55;background:#fafafa}.sheet-item input{width:17px;height:17px}.sheet-name{font-weight:750;font-size:14px}.sheet-meta{font-size:12px;color:var(--muted);margin-top:3px}.pill{font-size:11px;font-weight:800;border-radius:999px;padding:5px 9px;background:#f0f3f8;color:#617087}.pill.good{background:#e9f7f0;color:var(--good)}.pill.warn{background:#fff5e8;color:var(--warn)}.warnings{margin-top:12px}.warning{padding:10px 12px;border-radius:10px;background:#fff8ec;color:#8a5700;font-size:12px;margin-top:8px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:16px}.stat{border:1px solid var(--line);border-radius:12px;padding:12px}.stat b{display:block;font-size:22px}.stat span{font-size:12px;color:var(--muted)}.preview-wrap{overflow:auto;max-height:500px;border:1px solid var(--line);border-radius:12px}table{border-collapse:separate;border-spacing:0;width:max-content;min-width:100%;font-size:12px}th,td{padding:9px 11px;border-right:1px solid #e8edf4;border-bottom:1px solid #e8edf4;white-space:nowrap;max-width:280px;overflow:hidden;text-overflow:ellipsis}th{position:sticky;top:0;background:#f4f7fb;z-index:1;text-align:left;font-weight:800}tr:last-child td{border-bottom:0}.preview-note{font-size:12px;color:var(--muted)}.hidden{display:none!important}.toast{position:fixed;right:22px;bottom:22px;background:#182235;color:#fff;padding:12px 15px;border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.2);font-size:13px;opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}footer{text-align:center;color:#8791a2;font-size:12px;padding-top:8px}@media(max-width:850px){.settings-grid{grid-template-columns:1fr 1fr}.stats{grid-template-columns:1fr 1fr}.topbar{flex-direction:column}.actions.split{align-items:stretch;flex-direction:column}.actions.split>div{flex-wrap:wrap}}@media(max-width:520px){.app-shell{padding:20px 12px}.settings-grid{grid-template-columns:1fr}.card{padding:16px}.topbar h1{font-size:24px}.stats{grid-template-columns:1fr 1fr}.sheet-item{grid-template-columns:auto 1fr}.sheet-item .pill{grid-column:2}.actions{flex-wrap:wrap}.btn{width:100%}.actions.split>div{width:100%}}