:root{--bg:#f6f7f9;--surface:#ffffff;--text:#111827;--muted:#6b7280;--border:#e5e7eb;--accent:#0f766e;--accent-hover:#0d9488;--danger:#b91c1c;--danger-bg:#fef2f2;--up:#059669;--down:#dc2626;--neutral:#6b7280;--shadow:0 1px 2px rgba(0,0,0,0.04),0 8px 24px rgba(0,0,0,0.06);--radius:12px;--font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--accent)}main{max-width:720px;margin:0 auto;padding:48px 20px 80px}.header{margin-bottom:32px}.header h1{margin:0 0 8px;font-size:1.75rem;font-weight:650;letter-spacing:-.02em}.header p{margin:0;color:var(--muted);font-size:.95rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.form{display:grid;grid-gap:16px;gap:16px}.field{display:grid;grid-gap:6px;gap:6px}.field label{font-size:.85rem;font-weight:600;color:#374151}.field input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:1rem;background:#fff;color:var(--text);outline:none;transition:border-color .15s,box-shadow .15s}.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(15,118,110,.15)}.row{display:grid;grid-template-columns:1fr 160px;grid-gap:12px;gap:12px}@media (max-width:560px){.row{grid-template-columns:1fr}}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;border-radius:8px;background:var(--accent);color:#fff;font-size:.95rem;font-weight:600;padding:12px 16px;cursor:pointer;transition:background .15s,opacity .15s}.btn:hover:not(:disabled){background:var(--accent-hover)}.btn:disabled{opacity:.65;cursor:not-allowed}.error{margin-top:16px;padding:12px 14px;border-radius:8px;background:var(--danger-bg);color:var(--danger);border:1px solid #fecaca;font-size:.9rem}.loading{margin-top:16px;color:var(--muted);font-size:.95rem;display:flex;align-items:center;gap:10px}.spinner{width:16px;height:16px;border:2px solid #d1d5db;border-top:2px solid var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.results{margin-top:24px}.meta{display:flex;flex-wrap:wrap;gap:8px 16px;margin-bottom:20px;color:var(--muted);font-size:.9rem}.meta strong{color:var(--text);font-weight:600}.sales-block{display:grid;grid-gap:4px;gap:4px;margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid var(--border)}.sales-label{font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);font-weight:600}.sales-value{font-size:2rem;font-weight:700;letter-spacing:-.03em}.sales-range{color:var(--muted);font-size:.95rem}.confidence{display:flex;align-items:center;gap:12px;margin-bottom:8px}.confidence-pill{display:inline-flex;align-items:center;justify-content:center;min-width:52px;padding:4px 10px;border-radius:999px;background:#ecfdf5;color:#065f46;font-weight:700;font-size:.9rem}.confidence-reason{color:var(--muted);font-size:.9rem;margin:0 0 20px}.section-title{margin:0 0 12px;font-size:.95rem;font-weight:650}.factors{display:grid;grid-gap:12px;gap:12px;margin-bottom:20px}.factor{display:grid;grid-gap:6px;gap:6px}.factor-top{display:flex;justify-content:space-between;gap:12px;font-size:.9rem}.factor-name{font-weight:600}.factor-weight{color:var(--muted);white-space:nowrap}.bar{height:8px;background:#f3f4f6;overflow:hidden}.bar,.bar>span{border-radius:999px}.bar>span{display:block;height:100%}.bar.up>span{background:var(--up)}.bar.down>span{background:var(--down)}.bar.neutral>span{background:var(--neutral)}.factor-detail{margin:0;font-size:.85rem;color:var(--muted)}.disclaimer,.method{font-size:.9rem;color:var(--muted);margin:0 0 12px}.disclaimer{margin-top:16px;padding-top:16px;border-top:1px solid var(--border);font-size:.8rem}.footer{margin-top:28px;text-align:center;color:var(--muted);font-size:.8rem}