:root{--bg: #f6f7f9;--surface: #ffffff;--border: #e3e6ea;--text: #16181d;--muted: #6b7280;--accent: #2563eb;--ok: #0f9d58;--ok-bg: #eaf7ef;--warn: #b45309;--warn-bg: #fdf5e6;--bad: #c62828;--bad-bg: #fdeceb;--radius: 12px;--shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 4px 16px rgba(16, 24, 40, .06)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,Roboto,sans-serif;font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}.app{max-width:880px;margin:0 auto;padding:48px 20px 64px}.header{text-align:center;margin-bottom:32px}.header h1{font-size:34px;font-weight:680;letter-spacing:-.02em;margin:0 0 8px}.accent{color:var(--accent)}.tagline{color:var(--muted);max-width:520px;margin:0 auto}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;margin-bottom:16px}.card h2{font-size:13px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:0 0 12px;font-weight:620}.dropzone{border:2px dashed var(--border);border-radius:var(--radius);padding:52px 24px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s,transform .15s}.dropzone:hover,.dropzone:focus-visible{border-color:var(--accent);background:#f8faff;outline:none}.dropzone.dragging{border-color:var(--accent);background:#eff4ff;transform:scale(1.01)}.dropzone-icon{width:44px;height:44px;margin:0 auto 12px;color:var(--accent)}.dropzone-icon svg{width:100%;height:100%}.dropzone-title{font-size:18px;font-weight:600;margin:0 0 4px}.dropzone-sub{color:var(--muted);margin:0 0 12px}.dropzone-types{color:var(--muted);font-size:13px;margin:0}.works-with{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:20px;color:var(--muted);font-size:13px}.chip{background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:3px 10px;font-size:12px;color:var(--text)}.chip-solid{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:560}.analyzing{text-align:center;padding:48px 24px}.analyzing h2{font-size:17px;text-transform:none;letter-spacing:normal;color:var(--text);margin-bottom:20px}.spinner{width:34px;height:34px;margin:0 auto 18px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.steps{list-style:none;padding:0;margin:0 0 16px;display:inline-block;text-align:left}.steps li{color:var(--muted);padding:3px 0 3px 22px;position:relative;opacity:.35;animation:reveal .4s ease forwards}.steps li:before{content:"→";position:absolute;left:0;color:var(--accent)}@keyframes reveal{to{opacity:1}}.verdict{border-radius:var(--radius);padding:20px 24px;margin-bottom:16px;border:1px solid}.verdict-ok{background:var(--ok-bg);border-color:#bfe5cd}.verdict-warn{background:var(--warn-bg);border-color:#f0dcb0}.verdict-bad{background:var(--bad-bg);border-color:#f3c4c1}.verdict-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.verdict-label{font-size:22px;font-weight:660;letter-spacing:-.01em}.verdict-ok .verdict-label{color:var(--ok)}.verdict-warn .verdict-label{color:var(--warn)}.verdict-bad .verdict-label{color:var(--bad)}.verdict-count{font-size:13px;color:var(--muted)}.verdict-reason{margin:6px 0 0}.meta-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:16px}.meta{font-size:13px;color:var(--muted)}.summary{margin:0;font-size:16px}.math-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:12px}.math-grid>div{background:var(--bg);border-radius:8px;padding:12px}.math-label{display:block;font-size:12px;color:var(--muted);margin-bottom:2px}.math-value{font-size:19px;font-weight:620;font-variant-numeric:tabular-nums}.math-note{margin:0;font-size:14px}.math-ok{border-left:3px solid var(--ok)}.math-bad{border-left:3px solid var(--bad)}.math-bad .math-note{color:var(--bad);font-weight:560}.math-unknown{border-left:3px solid var(--muted)}.table-wrap{overflow-x:auto}.items{width:100%;border-collapse:collapse;font-size:14px}.items th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);padding:0 10px 8px;font-weight:600}.items td{padding:12px 10px;border-top:1px solid var(--border);vertical-align:top}.items tfoot td{border-top:2px solid var(--border);font-weight:650}.right{text-align:right}.amount{font-variant-numeric:tabular-nums;white-space:nowrap}.qty{color:var(--muted);margin-right:4px;font-size:12px}.item-desc{display:block;font-weight:560}.item-code{display:inline-block;font-size:11px;color:var(--muted);background:var(--bg);border-radius:4px;padding:1px 6px;margin:4px 4px 0 0}.item-code.uncertain{background:var(--warn-bg);color:var(--warn)}.item-plain{display:block;color:var(--muted)}.flagged-low,.flagged-medium{background:var(--warn-bg)}.flagged-high{background:var(--bad-bg)}.flagged td:first-child{box-shadow:inset 3px 0 0 var(--warn)}.flagged-high td:first-child{box-shadow:inset 3px 0 0 var(--bad)}.flag-note{display:block;margin-top:6px;font-size:13px;color:var(--warn)}.flag-note.flag-high{color:var(--bad)}.flag-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}.flag-card{border:1px solid var(--border);border-left:3px solid var(--warn);border-radius:8px;padding:14px 16px;background:var(--bg)}.flag-card.flag-high{border-left-color:var(--bad);background:var(--bad-bg)}.flag-card.flag-low{border-left-color:var(--muted)}.flag-head{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:6px}.flag-type{font-size:11px;text-transform:uppercase;letter-spacing:.06em;font-weight:640;color:var(--warn)}.flag-high .flag-type{color:var(--bad)}.flag-title{font-weight:600}.flag-verdict{font-size:11px;background:var(--text);color:#fff;border-radius:999px;padding:2px 9px}.flag-item{margin:0 0 6px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}.flag-why{margin:0 0 8px}.flag-say{margin:0;padding:10px 12px;background:var(--surface);border:1px solid var(--border);border-radius:6px;font-size:14px}.flag-say-label{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:2px}.banner{display:flex;flex-direction:column;gap:2px;padding:14px 16px;border-radius:8px;margin-bottom:16px}.banner-error{background:var(--bad-bg);border:1px solid #f3c4c1;color:var(--bad)}.banner-warn{background:var(--warn-bg);border:1px solid #f0dcb0;color:var(--warn)}.btn{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:10px 18px;font-size:14px;font-weight:560;cursor:pointer;font-family:inherit}.btn:hover{background:#1d4fd8}.btn-link{background:none;border:none;color:inherit;text-decoration:underline;cursor:pointer;padding:0;font-family:inherit;font-size:13px;align-self:flex-start;margin-top:4px}.actions{display:flex;align-items:center;gap:14px;margin-top:8px}.muted{color:var(--muted);font-size:13px}.footer{text-align:center;color:var(--muted);font-size:12px;margin-top:36px;max-width:520px;margin-inline:auto}@media(max-width:640px){.math-grid{grid-template-columns:1fr}.header h1{font-size:27px}}.sample-line{text-align:center;color:var(--muted);font-size:13px;margin:16px 0 0}.sample-line .btn-link{display:inline;margin:0;color:var(--accent);font-size:13px}.sample-badge{background:var(--text);color:#fff;font-size:11px;text-transform:uppercase;letter-spacing:.06em;border-radius:999px;padding:2px 9px}