*{box-sizing:border-box}
body{margin:0;font-family:Inter,Arial,sans-serif;background:#f4f7fb;color:#172033}
.wrap{width:min(1180px,calc(100% - 32px));margin:auto}
.topbar{background:#101827;color:#fff;padding:16px 0;box-shadow:0 2px 12px rgba(0,0,0,.12)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px}
.nav-links{display:flex;gap:14px;flex-wrap:wrap}
.nav-links a,.brand{color:#fff;text-decoration:none}
.brand{font-weight:800;font-size:20px}
main{padding:30px 0 60px}
.hero{padding:10px 0}
.hero h1,h1{margin:0 0 8px;font-size:32px}
.hero p,.muted{color:#60708a}
.card{background:#fff;border:1px solid #e3e9f2;border-radius:16px;padding:24px;margin:20px 0;box-shadow:0 10px 30px rgba(30,60,100,.06)}
.inner-card{margin:0}
.upload-box{display:flex;flex-direction:column;gap:6px;border:2px dashed #b7c5d9;border-radius:12px;padding:24px;background:#f9fbfe}
.upload-box input{margin-bottom:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:10px;background:#e7edf6;color:#172033;padding:11px 16px;text-decoration:none;font-weight:700;cursor:pointer}
.btn.primary{background:#2357d8;color:#fff}
.btn.small{padding:7px 10px;font-size:12px}
.full{width:100%}
.search-row,.row{display:flex;gap:10px;align-items:center}
.gap{gap:10px}
input,select,textarea{width:100%;border:1px solid #ccd6e5;border-radius:9px;padding:11px 12px;background:#fff;color:#172033;font:inherit}
textarea{resize:vertical}
.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:20px 0}
.filter-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr auto;gap:12px;align-items:end;margin:18px 0}
.filter-actions{display:flex;gap:8px}
label{font-weight:700;font-size:14px;display:block;margin-bottom:12px}
label input,label select,label textarea{margin-top:7px;font-weight:400}
.alert{padding:12px 16px;border-radius:10px;margin:12px 0}
.alert.success{background:#e8f8ef;color:#176d3c}
.alert.danger{background:#fff0f0;color:#9f2626}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:12px 10px;text-align:left;border-bottom:1px solid #e7edf5;white-space:nowrap}
th{font-size:13px;color:#60708a}
td a{font-weight:800;color:#2357d8;text-decoration:none}
.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px}
.detail-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:22px 0}
.detail-grid div{background:#f7f9fc;border:1px solid #e5ebf3;padding:14px;border-radius:10px}
.detail-grid span{display:block;color:#74859d;font-size:12px;margin-bottom:5px}
.ocr-text{white-space:pre-wrap;background:#111827;color:#dbe7f7;padding:18px;border-radius:12px;overflow:auto}
.preview-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin-top:18px}
.preview-card{border:1px solid #e4eaf3;background:#fff;border-radius:12px;padding:10px}
.preview-title{font-weight:700;margin-bottom:10px}
.preview-card canvas{width:100%;height:auto;border:1px solid #d9e3ef;border-radius:8px}
.progress{height:12px;background:#e7edf6;border-radius:999px;overflow:hidden}
.progress span{display:block;height:100%;width:0;background:#2357d8;transition:width .2s ease}
.hidden{display:none}
hr{border:0;border-top:1px solid #e7edf5;margin:26px 0}
.receipt-image{max-width:100%;border:1px solid #dbe4f2;border-radius:12px}
.pdf-frame{width:100%;height:680px;border:1px solid #dbe4f2;border-radius:12px;background:#fff}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.stat-card{background:#fff;border:1px solid #e3e9f2;border-radius:16px;padding:22px}
.stat-card span{display:block;color:#6f8098;margin-bottom:8px}
.stat-card strong{font-size:28px}
.grid.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:min(440px,100%)}
@media(max-width:900px){
  .form-grid,.detail-grid,.stats,.grid.two,.filter-grid{grid-template-columns:1fr}
  .nav,.search-row,.row,.filter-actions{flex-direction:column;align-items:stretch}
}

.ai-btn{background:#6d28d9;color:#fff}
.ai-btn:disabled{opacity:.5;cursor:not-allowed}
.ai-status{margin:14px 0;padding:12px 14px;border-radius:10px;font-weight:600}
.ai-status.info{background:#eef4ff;color:#224f9c}
.ai-status.loading{background:#fff7e6;color:#8a5a00}
.ai-status.success{background:#e8f8ef;color:#176d3c}
.ai-status.error{background:#fff0f0;color:#9f2626}