:root {
  --navy: #0b1b34;
  --blue: #2563eb;
  --blue-soft: #e8f0fe;
  --ink: #1c2433;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #f7f9fc;
  --green: #15803d;
  --amber: #b45309;
  --red: #b91c1c;
  --radius: 12px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--ink); background: #fff; line-height: 1.55; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* nav */
.nav { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; }
.logo { font-weight: 800; font-size: 20px; letter-spacing: -0.3px; }
.logo span { color: var(--blue); }
.nav a.link { margin-left: 22px; color: var(--muted); font-size: 15px; }
.btn { display: inline-block; background: var(--blue); color: #fff; padding: 11px 20px; border-radius: 10px; font-weight: 600; font-size: 15px; border: 0; cursor: pointer; }
.btn:hover { background: #1d4ed8; }
.btn.ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn.ghost:hover { background: var(--bg); }

/* hero */
.hero { background: linear-gradient(180deg, var(--blue-soft), #fff); padding: 70px 0 60px; text-align: center; }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.12; letter-spacing: -1px; max-width: 800px; margin: 0 auto 18px; color: var(--navy); }
.hero p { font-size: 19px; color: var(--muted); max-width: 640px; margin: 0 auto 30px; }
.hero .cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.pill { display: inline-block; background: #fff; border: 1px solid var(--line); border-radius: 99px; padding: 5px 14px; font-size: 13px; color: var(--blue); font-weight: 600; margin-bottom: 20px; }

section { padding: 60px 0; }
section h2 { font-size: 30px; letter-spacing: -0.5px; margin-bottom: 8px; color: var(--navy); }
section .sub { color: var(--muted); margin-bottom: 32px; max-width: 640px; }
.grid { display: grid; gap: 18px; }
.g3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.g2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: #fff; }
.card h3 { font-size: 17px; margin-bottom: 6px; color: var(--navy); }
.card p { color: var(--muted); font-size: 15px; }
.num { width: 32px; height: 32px; border-radius: 50%; background: var(--blue-soft); color: var(--blue); font-weight: 700; display: grid; place-items: center; margin-bottom: 12px; }
.alt { background: var(--bg); }
.stat { font-size: 34px; font-weight: 800; color: var(--blue); }

.cta-band { background: var(--navy); color: #fff; text-align: center; border-radius: 18px; padding: 48px 24px; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #b6c3da; margin-bottom: 24px; }
footer { padding: 48px 0 28px; background: #071224; color: #94a3b8; font-size: 14px; border-top: 1px solid #1e293b; }
footer h4 { color: #f8fafc; font-size: 15px; margin-bottom: 12px; font-weight: 700; letter-spacing: -0.2px; }
footer p { margin-bottom: 8px; line-height: 1.6; font-size: 13.5px; }
footer a { color: #60a5fa; text-decoration: none; }
footer a:hover { text-decoration: underline; }
.corp-grid { display: grid; grid-template-columns: 1.5fr 1.2fr 1fr; gap: 36px; margin-bottom: 32px; text-align: left; }
.corp-bottom { border-top: 1px solid #1e293b; padding-top: 24px; text-align: center; font-size: 12.5px; color: #64748b; }
.badge-active { display: inline-block; background: rgba(34, 197, 94, 0.15); color: #4ade80; border: 1px solid rgba(34, 197, 94, 0.3); padding: 2px 7px; border-radius: 99px; font-size: 11px; font-weight: 600; margin-left: 6px; }
@media (max-width: 800px) {
  .corp-grid { grid-template-columns: 1fr; gap: 24px; }
}

/* demo app */
.app { display: grid; grid-template-columns: 250px 1fr 340px; height: calc(100vh - 62px); background: var(--bg); }
.topbar { height: 62px; background: #fff; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; padding: 0 20px; }
.side { background: #fff; border-right: 1px solid var(--line); padding: 16px; overflow: auto; }
.side h4 { font-size: 12px; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); margin: 6px 0 10px; }
.doc { border: 1px solid var(--line); border-radius: 10px; padding: 11px 12px; margin-bottom: 8px; cursor: pointer; background: #fff; }
.doc:hover { border-color: var(--blue); }
.doc.active { border-color: var(--blue); background: var(--blue-soft); }
.doc b { display: block; font-size: 14px; }
.doc small { color: var(--muted); font-size: 12px; }
.tag { display: inline-block; font-size: 11px; background: #eef2f7; color: #475569; padding: 2px 7px; border-radius: 6px; margin-top: 5px; margin-right: 4px; }
.upload { border: 2px dashed #c3cfe2; border-radius: 10px; padding: 14px; text-align: center; font-size: 13px; color: var(--muted); cursor: pointer; margin-top: 12px; transition: border-color .2s, color .2s; }
.upload:hover { border-color: var(--blue); color: var(--blue); background: #f0f7ff; }
.stage { padding: 20px; overflow: auto; position: relative; }
.paper { background: #fffef9; border: 1px solid #d8d4c4; box-shadow: 0 6px 24px rgba(15,23,42,.1); padding: 28px; font-family: "Courier New", monospace; font-size: 13px; line-height: 1.7; max-width: 640px; margin: 0 auto; position: relative; transform: rotate(-0.4deg); }
.paper h3 { font-family: Georgia, serif; text-align: center; font-size: 18px; letter-spacing: 1px; border-bottom: 2px solid #333; padding-bottom: 8px; margin-bottom: 14px; }
.paper .row { display: flex; gap: 16px; margin-bottom: 4px; }
.paper .row > div { flex: 1; }
.paper .lbl { color: #8a8574; font-size: 10px; text-transform: uppercase; display: block; line-height: 1.2; margin-top: 8px; }
.paper mark { background: transparent; color: inherit; transition: background .2s, outline .2s; padding: 0 2px; border-radius: 3px; cursor: pointer; }
.paper mark:hover { background: #fef08a; }
.paper mark.hl { background: #fde68a; outline: 2px solid #f59e0b; }
.hand { font-family: "Brush Script MT", "Segoe Script", cursive; font-size: 19px; color: #1e40af; transform: rotate(-3deg); display: inline-block; }
.stamp { position: absolute; right: 28px; bottom: 30px; border: 3px solid #b91c1c; color: #b91c1c; padding: 6px 12px; font-weight: 700; transform: rotate(-12deg); opacity: .65; font-family: Arial, sans-serif; text-align: center; font-size: 12px; letter-spacing: 1px; }
.scan { position: absolute; left: 0; right: 0; height: 4px; background: var(--blue); box-shadow: 0 0 20px 6px rgba(37,99,235,.5); animation: sweep 1.4s ease-in-out infinite; display: none; z-index: 5; }
.processing .scan { display: block; }
@keyframes sweep { 0% { top: 0; } 100% { top: 100%; } }
.custom-doc { text-align: center; font-family: inherit; }
.custom-badge { font-family: Inter, sans-serif; font-size: 12px; font-weight: 600; color: var(--blue); background: var(--blue-soft); padding: 4px 12px; border-radius: 20px; display: inline-block; margin-bottom: 14px; }
.custom-doc-img { max-width: 100%; max-height: 520px; object-fit: contain; border-radius: 6px; border: 1px solid var(--line); box-shadow: 0 4px 12px rgba(0,0,0,0.08); }
.results { background: #fff; border-left: 1px solid var(--line); padding: 16px; overflow: auto; }
.results h4 { font-size: 15px; margin-bottom: 4px; }
.meta { font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.field { border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; margin-bottom: 8px; cursor: pointer; transition: border-color .15s, background-color .15s; }
.field:hover { border-color: var(--blue); }
.field.sel { border-color: var(--blue); background: var(--blue-soft); }
.field .k { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; display: flex; justify-content: space-between; align-items: center; }
.field .v { font-weight: 600; font-size: 14px; word-break: break-word; outline: none; border-radius: 4px; padding: 1px 3px; }
.field .v:focus { background: #fff; box-shadow: 0 0 0 2px var(--blue); }
.field .c { float: right; font-size: 11px; font-weight: 700; padding: 1px 7px; border-radius: 99px; }
.c.hi { background: #dcfce7; color: var(--green); }
.c.mid { background: #fef3c7; color: var(--amber); }
.c.lo { background: #fee2e2; color: var(--red); }
.field .n { font-size: 12px; color: var(--amber); margin-top: 3px; display: flex; justify-content: space-between; align-items: center; }
.field .verify-btn { background: none; border: 1px solid #f59e0b; color: #b45309; padding: 2px 7px; border-radius: 6px; font-size: 10.5px; font-weight: 600; cursor: pointer; }
.field .verify-btn:hover { background: #fef3c7; }
.actions { display: flex; gap: 8px; margin: 12px 0; }
.actions .btn { padding: 8px 12px; font-size: 13px; }
.banner { background: #fffbeb; border: 1px solid #fde68a; color: #92400e; border-radius: 8px; padding: 8px 12px; font-size: 12.5px; margin-bottom: 14px; }
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; height: auto; }
  .side, .results { border: 0; }
}