:root{
  --brand:#2563eb; --brand-dark:#1d4ed8;
  --ink:#1a1d24; --muted:#6b7280; --line:#e5e7eb;
  --bg:#f7f8fb; --card:#ffffff;
  --ok:#16a34a; --warn:#b45309; --danger:#dc2626;
  --radius:12px; --shadow:0 1px 3px rgba(16,24,40,.06),0 1px 2px rgba(16,24,40,.04);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Malgun Gothic","맑은 고딕",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}

/* header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-size:19px;font-weight:800;color:var(--ink);text-decoration:none}
.logo span{color:var(--brand)}
.nav{display:flex;align-items:center;gap:18px}
.nav a{color:var(--muted);font-weight:600;font-size:15px}
.nav a.active,.nav a:hover{color:var(--ink);text-decoration:none}
.nav a.btn-primary,.nav a.btn-primary:hover{color:#fff}
.ai-banner{background:#fff7ed;border:1px solid #fed7aa;color:var(--warn);
  padding:10px 14px;border-radius:8px;margin:14px auto;font-size:14px;max-width:1000px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border:1px solid transparent;border-radius:9px;font-weight:700;cursor:pointer;
  padding:9px 16px;font-size:15px;line-height:1;transition:.15s;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-sm{padding:7px 12px;font-size:13px}
.btn-lg{padding:13px 24px;font-size:16px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:#f3f4f6;color:var(--ink)}
.btn.disabled,.btn:disabled{opacity:.45;pointer-events:none}

/* hero */
.hero{background:linear-gradient(180deg,#eef2ff 0%,#f7f8fb 100%);padding:64px 0 48px;text-align:center}
.pill{display:inline-block;background:#e0e7ff;color:var(--brand-dark);font-weight:700;
  font-size:13px;padding:6px 14px;border-radius:999px;margin-bottom:18px}
.hero h1{font-size:40px;line-height:1.25;margin:0 0 16px;font-weight:800;letter-spacing:-.5px}
.hero .lead{color:var(--muted);font-size:17px;margin:0 auto 28px;max-width:640px}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* stats */
.stats{display:flex;gap:16px;margin:36px auto;justify-content:center;flex-wrap:wrap}
.stat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:22px 34px;text-align:center;min-width:140px}
.stat-card b{display:block;font-size:32px;font-weight:800;color:var(--brand)}
.stat-card span{color:var(--muted);font-size:14px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:20px auto 60px}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.step .num{display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;
  background:var(--brand);color:#fff;border-radius:8px;font-weight:800;margin-bottom:10px}
.step h3{margin:0 0 6px;font-size:17px}
.step p{margin:0;color:var(--muted);font-size:14px}

/* page */
.page{padding:32px 20px 60px}
.page-title{font-size:26px;margin:0 0 6px;font-weight:800}
.page-sub{color:var(--muted);margin:0 0 22px;font-size:15px}
.page-sub .token{color:var(--brand)}
.list-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px}

/* dropzone */
.dropzone{display:block;border:2px dashed #c7cbd4;border-radius:16px;background:#fff;
  padding:52px 20px;text-align:center;cursor:pointer;transition:.15s}
.dropzone.drag{border-color:var(--brand);background:#eef2ff}
.dz-icon{font-size:44px}
.dz-text{margin-top:8px;font-size:17px}
.dz-hint{color:var(--muted);font-size:13px;margin-top:4px}
.dz-file{margin-top:12px;color:var(--brand);font-weight:700}
.form-actions{display:flex;gap:10px;margin:22px 0;flex-wrap:wrap}
.loading{color:var(--brand);font-weight:600}
.callout{background:#eff6ff;border:1px solid #bfdbfe;color:#1e40af;padding:12px 16px;border-radius:10px;font-size:14px}
.alert{background:#fff7ed;border:1px solid #fed7aa;color:var(--warn);padding:11px 14px;border-radius:9px;margin-bottom:16px;font-size:14px}

/* review grid */
.review-grid{display:grid;grid-template-columns:minmax(0,420px) 1fr;gap:26px;align-items:start}
.preview{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow)}
.preview img{width:100%;border-radius:8px;display:block}
.preview-link{display:inline-block;margin-top:8px;font-size:13px}

/* form fields */
.fs{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.field{margin-bottom:14px}
.field label{display:block;font-weight:700;font-size:13px;color:#374151;margin-bottom:5px}
.field input{width:100%;border:1px solid var(--line);border-radius:8px;padding:9px 11px;font-size:15px;font-family:inherit}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px #dbeafe}
.row3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}

/* items table */
.items-head{display:flex;align-items:center;justify-content:space-between;margin:22px 0 8px}
.items-head h3{margin:0;font-size:16px}
.items-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.items-table th,.items-table td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.items-table th{background:#f3f4f6;font-size:12px;color:#374151}
.items-table td input{width:100%;border:1px solid transparent;background:transparent;padding:5px 6px;font-size:14px;font-family:inherit;border-radius:6px}
.items-table td input:focus{outline:none;border-color:var(--brand);background:#fff}
.items-table .num{text-align:right}
.items-table td input.num{text-align:right}
.del-row{border:none;background:#fee2e2;color:var(--danger);width:24px;height:24px;border-radius:6px;cursor:pointer;font-size:12px}

/* data table */
.data-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.data-table th,.data-table td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.data-table th{background:#f3f4f6;font-size:12px;color:#374151;font-weight:700}
.data-table .num{text-align:right}
.data-table tr:last-child td{border-bottom:none}
.data-table .ellipsis{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.actions{white-space:nowrap}
.mini{font-size:13px;margin-right:8px;background:none;border:none;cursor:pointer;color:var(--brand);padding:0;font-family:inherit}
.mini.danger{color:var(--danger)}

/* kv detail */
.kv{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.kv th{background:#f3f4f6;text-align:left;padding:10px 14px;width:120px;font-size:13px;color:#374151;border-bottom:1px solid var(--line)}
.kv td{padding:10px 14px;border-bottom:1px solid var(--line);font-size:15px}
.kv td.num{text-align:right;font-variant-numeric:tabular-nums}
.kv td.strong{font-weight:800;color:var(--brand)}
.mt{margin-top:22px}

/* badges/chips */
.badge{display:inline-block;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px;vertical-align:middle}
.badge.review{background:#fef3c7;color:var(--warn)}
.badge.confirmed{background:#dcfce7;color:var(--ok)}
.filters{display:flex;gap:8px;margin-bottom:16px}
.chip{padding:6px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:14px;font-weight:600}
.chip.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.chip:hover{text-decoration:none}
.empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:48px;text-align:center;color:var(--muted)}

/* footer */
.site-footer{border-top:1px solid var(--line);background:#fff;margin-top:40px;padding:24px 0}
.site-footer .note{color:var(--muted);font-size:13px;margin:0 0 4px}
.site-footer .copy{color:#9ca3af;font-size:12px;margin:0}

@media(max-width:840px){
  .steps{grid-template-columns:repeat(2,1fr)}
  .review-grid{grid-template-columns:1fr}
  .hero h1{font-size:30px}
}
@media(max-width:560px){
  .steps{grid-template-columns:1fr}
  .row3{grid-template-columns:1fr}
  .data-table .ellipsis{max-width:120px}
}