/* HelixScan UI — designed to wow */
:root{
  --bg-0:#070914;
  --bg-1:#0c1124;
  --bg-2:#131a36;
  --line:rgba(255,255,255,0.08);
  --line-2:rgba(255,255,255,0.14);
  --text:#e6e9f5;
  --muted:#8a92b2;
  --accent:#8b5cf6;
  --accent-2:#06b6d4;
  --accent-3:#22c55e;
  --warn:#f59e0b;
  --error:#ef4444;
  --grad: linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#06b6d4 100%);
  --grad-soft: linear-gradient(135deg,rgba(99,102,241,.18),rgba(6,182,212,.18));
  --shadow-lg: 0 25px 80px -20px rgba(99,102,241,.45), 0 12px 40px -16px rgba(6,182,212,.3);
  --r-md:14px; --r-lg:20px; --r-xl:28px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 600px at 10% -10%, rgba(99,102,241,.25), transparent 60%),
              radial-gradient(900px 500px at 110% 0%, rgba(6,182,212,.22), transparent 55%),
              radial-gradient(800px 600px at 50% 110%, rgba(139,92,246,.18), transparent 60%),
              var(--bg-0);
  background-attachment: fixed;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  font-feature-settings: "ss01","cv11";
}

/* Animated aurora behind */
.aurora{position:fixed;inset:0;overflow:hidden;z-index:-1;pointer-events:none}
.aurora::before,.aurora::after{
  content:"";position:absolute;width:60vmax;height:60vmax;border-radius:50%;
  filter: blur(120px); opacity:.55; mix-blend-mode:screen;
  animation: drift 22s ease-in-out infinite alternate;
}
.aurora::before{background:radial-gradient(closest-side,#6366f1,transparent 70%);top:-20vmax;left:-20vmax}
.aurora::after{background:radial-gradient(closest-side,#06b6d4,transparent 70%);bottom:-20vmax;right:-20vmax;animation-duration:28s}
@keyframes drift{
  0%{transform:translate(0,0) scale(1)}
  50%{transform:translate(6vw,-3vh) scale(1.08)}
  100%{transform:translate(-3vw,4vh) scale(1)}
}

/* Top nav */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: rgba(7,9,20,.55);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:1280px;margin:0 auto;display:flex;align-items:center;gap:18px;
  padding:14px 24px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit}
.brand .logo-dot{
  width:34px;height:34px;border-radius:10px;background:var(--grad);
  display:grid;place-items:center;box-shadow: 0 6px 20px -6px rgba(139,92,246,.7);
  position:relative;overflow:hidden;
}
.brand .logo-dot svg{width:24px;height:24px;color:#fff}
.brand .name{font-weight:800;font-size:18px;letter-spacing:-.3px}
.brand .name span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav .links{display:flex;gap:6px;margin-left:14px}
.nav .links a{
  text-decoration:none;color:var(--muted);font-size:14px;font-weight:500;
  padding:8px 12px;border-radius:10px;transition:all .2s ease;
}
.nav .links a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav .links a.active{color:#fff;background:rgba(139,92,246,.18);box-shadow:inset 0 0 0 1px rgba(139,92,246,.35)}
.nav .spacer{flex:1}
.nav .user{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}
.nav .user .avatar{width:28px;height:28px;border-radius:50%;background:var(--grad);display:grid;place-items:center;color:white;font-weight:700;font-size:12px}
.nav .user button{background:transparent;border:1px solid var(--line-2);color:var(--muted);padding:6px 10px;border-radius:8px;cursor:pointer;font-size:12px}
.nav .user button:hover{color:#fff;border-color:rgba(255,255,255,.3)}

.shell{max-width:1280px;margin:0 auto;padding:28px 24px 60px}

/* Hero */
.hero{
  display:grid;grid-template-columns: 1.15fr .85fr; gap:24px; margin-bottom:24px;
}
@media (max-width:980px){.hero{grid-template-columns:1fr}}

.card{
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.015));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  position:relative; overflow:hidden;
}
.card.glow{box-shadow: var(--shadow-lg)}
.card .eyebrow{font-size:11px;font-weight:700;letter-spacing:2px;color:var(--muted);text-transform:uppercase;margin-bottom:10px}
.card h1{font-size:34px;line-height:1.1;margin:0 0 10px;letter-spacing:-.6px}
.card h1 span.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.card p.lead{color:var(--muted);margin:0 0 16px;font-size:15px;max-width:48ch}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media (max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat{
  background:rgba(255,255,255,.025); border:1px solid var(--line);
  border-radius:var(--r-md); padding:14px 16px; position:relative; overflow:hidden;
  min-width:0;
}
.stat .label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:1.2px;font-weight:600;overflow-wrap:anywhere;line-height:1.35;min-height:2.7em}
.stat .value{font-size:26px;font-weight:800;margin-top:6px;letter-spacing:-.4px}
.stat .delta{font-size:11px;color:var(--accent-3);margin-top:2px}
.stat::after{
  content:"";position:absolute;inset:auto -20px -20px auto;width:90px;height:90px;border-radius:50%;
  background: var(--grad-soft); filter: blur(20px); opacity:.7;
}

/* Drop zone */
.drop{
  border:2px dashed rgba(139,92,246,.45);
  background: linear-gradient(180deg, rgba(99,102,241,.06), rgba(6,182,212,.05));
  border-radius:var(--r-lg);
  padding:34px;
  text-align:center;
  transition:all .25s ease;
  cursor:pointer;
  position:relative; overflow:hidden;
}
.drop:hover{border-color:rgba(139,92,246,.85);transform:translateY(-1px)}
.drop.drag{border-color:var(--accent-2);background:rgba(6,182,212,.1);transform:scale(1.01)}
.drop .icon{
  width:64px;height:64px;border-radius:18px;display:grid;place-items:center;margin:0 auto 12px;
  background:var(--grad); color:white; box-shadow: 0 12px 30px -10px rgba(139,92,246,.6);
}
.drop .icon svg{width:32px;height:32px}
.drop h3{margin:0 0 4px;font-size:18px}
.drop p{margin:0;color:var(--muted);font-size:13px}
.drop .actions{margin-top:16px;display:flex;gap:8px;justify-content:center;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  border:none;cursor:pointer;font-weight:600;font-size:14px;
  padding:10px 16px;border-radius:12px;transition:all .15s ease;
  text-decoration:none;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 30px -10px rgba(139,92,246,.6)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 36px -8px rgba(139,92,246,.7)}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--text);border:1px solid var(--line-2)}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn-link{background:transparent;color:var(--muted)}
.btn-link:hover{color:#fff}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none!important}

/* Pipeline (processing animation) */
.pipeline{
  display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px;
}
@media (max-width:980px){.pipeline{grid-template-columns:1fr}}
.panel{
  background: rgba(255,255,255,.025); border:1px solid var(--line);
  border-radius: var(--r-lg); padding:18px; min-height:280px; position:relative;
}
.panel .head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.panel .head h4{margin:0;font-size:14px;letter-spacing:.4px;text-transform:uppercase;color:var(--muted)}
.panel .head .pill{font-size:11px;color:var(--muted);background:rgba(255,255,255,.05);border:1px solid var(--line-2);border-radius:999px;padding:3px 10px}

.preview-img{
  width:100%;max-height:520px;object-fit:contain;border-radius:14px;border:1px solid var(--line);
  background: repeating-linear-gradient(45deg, rgba(255,255,255,.02) 0 8px, rgba(255,255,255,0) 8px 16px);
}

/* Scanning line over the preview */
.scan-wrap{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.scan-wrap .scan-line, .scan-wrap .grid{pointer-events:none}
.scan-wrap.done .scan-line, .scan-wrap.done .grid{display:none}
.scan-wrap .scan-line{
  position:absolute;left:0;right:0;height:60px;
  background: linear-gradient(180deg, rgba(34,211,238,0) 0%, rgba(34,211,238,.45) 50%, rgba(34,211,238,0) 100%);
  filter: blur(2px);
  animation: scanmove 2.4s ease-in-out infinite;
}
@keyframes scanmove{
  0%{transform:translateY(-60px)}
  100%{transform:translateY(520px)}
}
.scan-wrap .grid{
  position:absolute;inset:0;
  background-image: linear-gradient(rgba(139,92,246,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(139,92,246,.18) 1px, transparent 1px);
  background-size: 28px 28px;
  mix-blend-mode: screen; opacity:.5;
}
.preview-pdf{width:100%;height:680px;border:0;display:block;background:#fff}

/* Steps */
.steps{display:flex;flex-direction:column;gap:8px;margin-top:6px}
.step{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;background:rgba(255,255,255,.02);border:1px solid var(--line);font-size:13px;color:var(--muted)}
.step .dot{width:8px;height:8px;border-radius:50%;background:#475569}
.step.done{color:#fff}
.step.done .dot{background:var(--accent-3);box-shadow:0 0 12px var(--accent-3)}
.step.active{color:#fff;background:rgba(139,92,246,.1);border-color:rgba(139,92,246,.4)}
.step.active .dot{background:var(--accent);box-shadow:0 0 14px var(--accent);animation:pulse 1s ease-in-out infinite}
@keyframes pulse{50%{transform:scale(1.4);opacity:.7}}

/* Result panels */
.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}
@media (max-width:980px){.result-grid{grid-template-columns:1fr}}

.invoice-frame{
  background:#fff;color:#0f172a;border-radius:14px;padding:0;overflow:hidden;
  border:1px solid var(--line-2);
  box-shadow: 0 20px 60px -20px rgba(0,0,0,.6);
  max-height:760px;overflow-y:auto;
}
.invoice-frame .invoice-doc{padding:28px}

/* Fields list */
.fields-list{display:flex;flex-direction:column;gap:6px;max-height:760px;overflow-y:auto;padding-right:6px}
.field-row{
  display:grid;grid-template-columns: 220px 1fr; gap:14px;
  padding:8px 10px;border-radius:8px;border:1px solid transparent;
  font-size:13px;
}
.field-row:hover{background:rgba(255,255,255,.03);border-color:var(--line)}
.field-row.is-new{
  background: linear-gradient(90deg, rgba(34,197,94,.12), transparent);
  border-color: rgba(34,197,94,.35);
  animation: glow-new 2.4s ease-in-out;
}
@keyframes glow-new{
  0%{box-shadow:0 0 0 0 rgba(34,197,94,.0)}
  20%{box-shadow:0 0 0 6px rgba(34,197,94,.18)}
  100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}
}
.field-row .key{color:var(--muted);font-family:'JetBrains Mono','SF Mono',Menlo,monospace;font-size:12px;display:flex;align-items:center;gap:6px}
.field-row .val{color:var(--text);word-break:break-word;white-space:pre-wrap}
.tag-new{
  font-size:10px;background:rgba(34,197,94,.18);color:#86efac;border:1px solid rgba(34,197,94,.4);
  padding:2px 6px;border-radius:999px;letter-spacing:1px;font-weight:700;text-transform:uppercase;
}
.tag-cat{
  font-size:10px;background:rgba(139,92,246,.15);color:#c4b5fd;border:1px solid rgba(139,92,246,.3);
  padding:2px 6px;border-radius:999px;letter-spacing:.5px;font-weight:600;
}

/* Toast */
.toast{
  position:fixed;bottom:24px;right:24px;z-index:80;
  background:rgba(15,23,42,.95);color:#fff;padding:14px 18px;border-radius:14px;
  border:1px solid var(--line-2); box-shadow: 0 18px 40px -10px rgba(0,0,0,.5);
  display:flex;align-items:center;gap:10px;font-size:14px;
  transform: translateY(80px); opacity:0; transition:all .3s ease;
}
.toast.show{transform:translateY(0);opacity:1}
.toast.success{border-color:rgba(34,197,94,.5)}
.toast.error{border-color:rgba(239,68,68,.5)}

/* Login */
.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{
  width:100%;max-width:420px;
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.015));
  border:1px solid var(--line-2);border-radius: var(--r-xl); padding:36px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(14px);
}
.login-card .brand{justify-content:center;margin-bottom:18px}
.login-card h2{margin:0 0 6px;text-align:center;font-size:22px}
.login-card p{margin:0 0 20px;text-align:center;color:var(--muted);font-size:14px}
.login-card label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;font-weight:600;letter-spacing:.4px;text-transform:uppercase}
.login-card input{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line-2);color:#fff;
  padding:12px 14px;border-radius:12px;font-size:15px;transition:all .2s;
}
.login-card input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px rgba(139,92,246,.2)}
.login-card .row{margin-bottom:14px}
.login-card .err{color:#fecaca;background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.35);padding:10px 12px;border-radius:10px;font-size:13px;margin-bottom:12px}
.login-card .btn{width:100%;justify-content:center;padding:13px}
.login-card .hint{margin-top:14px;text-align:center;color:var(--muted);font-size:12px}

/* Gallery */
.toolbar{display:flex;gap:10px;align-items:center;justify-content:space-between;margin-bottom:16px}
.toolbar h2{margin:0;font-size:22px;letter-spacing:-.3px}
.toolbar .search{
  background:rgba(255,255,255,.04);border:1px solid var(--line-2);color:#fff;
  padding:10px 14px;border-radius:12px;font-size:14px;min-width:240px;
}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.tile-wrap{position:relative}
.tile{
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;text-decoration:none;color:inherit;
  transition:all .2s ease;display:flex;flex-direction:column;height:100%;
}
.tile:hover{transform:translateY(-3px);border-color:rgba(139,92,246,.55);box-shadow:0 22px 50px -20px rgba(99,102,241,.55)}
.tile-wrap .del{
  position:absolute;top:10px;right:10px;width:30px;height:30px;border-radius:9px;
  background:rgba(2,4,12,.78);border:1px solid var(--line-2);color:#fca5a5;
  display:grid;place-items:center;cursor:pointer;opacity:0;transition:all .15s ease;z-index:3;
  backdrop-filter: blur(6px);
}
.tile-wrap:hover .del{opacity:1}
.tile-wrap .del:hover{background:rgba(239,68,68,.92);color:#fff;border-color:rgba(239,68,68,.92);transform:scale(1.05)}
.tile-wrap .del svg{width:14px;height:14px}

.tile .thumb-shell{
  position:relative;
  background: linear-gradient(180deg, #1a2140, #0a0d1d 60%, #050816);
  padding:14px 14px 0;
  aspect-ratio: 3/4;
  display:flex;align-items:flex-start;justify-content:center;
  overflow:hidden;
}
.tile .thumb-shell::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(120% 80% at 50% 0%, rgba(139,92,246,.18), transparent 60%),
    radial-gradient(120% 80% at 50% 100%, rgba(6,182,212,.12), transparent 60%);
  pointer-events:none;
}
.tile .thumb{
  position:relative;width:100%;aspect-ratio: 1 / 1.32;
  background-color:#fff;background-size:cover;background-position:top center;
  border-radius:6px 6px 2px 2px;
  box-shadow: 0 18px 40px -10px rgba(0,0,0,.6), 0 2px 0 rgba(255,255,255,.04) inset;
  overflow:hidden;
}
.tile .thumb::after{
  content:"";position:absolute;inset:auto 0 0 0;height:38%;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.02) 60%, rgba(0,0,0,.08));
  pointer-events:none;
}
.tile .thumb.pdf-placeholder{
  background:linear-gradient(180deg,#fafafa 0%, #ececec 100%);
  display:flex;align-items:center;justify-content:center;
}
.tile .thumb.pdf-placeholder .ph{
  color:#94a3b8;font-weight:800;letter-spacing:3px;font-size:18px;
  display:flex;flex-direction:column;align-items:center;gap:6px;
}
.tile .thumb.pdf-placeholder .ph svg{width:34px;height:34px;opacity:.6}

.tile .badge-type{
  position:absolute;top:10px;left:10px;z-index:2;
  font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;
  padding:3px 8px;border-radius:999px;
  background:rgba(2,4,12,.6);border:1px solid var(--line-2);color:#cbd5e1;
  backdrop-filter: blur(6px);
}
.tile .badge-type.pdf{color:#fca5a5;border-color:rgba(239,68,68,.4)}
.tile .badge-type.img{color:#67e8f9;border-color:rgba(6,182,212,.4)}

.tile .body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px}
.tile .vendor{font-weight:700;font-size:14px;line-height:1.25;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tile .meta{font-size:12px;color:var(--muted);display:flex;justify-content:space-between;gap:8px;align-items:center}
.tile .meta .date{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tile .meta .total{color:#a7f3d0;font-weight:700;font-size:13px;font-variant-numeric: tabular-nums}
.badge-new{display:inline-block;font-size:10px;background:rgba(34,197,94,.2);color:#86efac;border:1px solid rgba(34,197,94,.4);padding:1px 6px;border-radius:999px;margin-left:6px;font-weight:700;vertical-align:middle}

/* Fields page */
.fields-table{
  width:100%;border-collapse:separate;border-spacing:0;background:rgba(255,255,255,.02);
  border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.fields-table th, .fields-table td{padding:12px 14px;text-align:left;font-size:13px;border-bottom:1px solid var(--line)}
.fields-table th{background:rgba(255,255,255,.04);color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:1px;font-size:11px}
.fields-table tr:last-child td{border-bottom:none}
.fields-table tr.learned td:first-child{position:relative}
.fields-table tr.learned td:first-child::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent-3);
}
.cat-pill{font-size:10px;padding:3px 8px;border-radius:999px;letter-spacing:.6px;text-transform:uppercase;font-weight:700;background:rgba(139,92,246,.15);color:#c4b5fd;border:1px solid rgba(139,92,246,.3)}
.cat-pill.discovered{background:rgba(34,197,94,.15);color:#86efac;border-color:rgba(34,197,94,.3)}
.cat-pill.totals{background:rgba(245,158,11,.15);color:#fcd34d;border-color:rgba(245,158,11,.35)}
.cat-pill.payment{background:rgba(6,182,212,.15);color:#67e8f9;border-color:rgba(6,182,212,.35)}

/* Camera modal */
.modal{position:fixed;inset:0;background:rgba(2,4,12,.78);backdrop-filter: blur(8px);display:none;align-items:center;justify-content:center;z-index:90;padding:20px}
.modal.show{display:flex}
.modal .box{background:#0c1124;border:1px solid var(--line-2);border-radius:18px;padding:18px;max-width:720px;width:100%}
.modal video{width:100%;border-radius:12px;background:#000;aspect-ratio:4/3;object-fit:cover}
.modal .controls{display:flex;gap:10px;justify-content:flex-end;margin-top:12px}

.spin{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.25);border-top-color:#fff;border-radius:50%;animation:spin 0.8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.empty{
  text-align:center;padding:60px 20px;color:var(--muted);
  background:rgba(255,255,255,.02);border:1px dashed var(--line-2);border-radius:14px;
}
.empty .ico{font-size:34px;margin-bottom:8px}
.kbd{font-family:'JetBrains Mono',monospace;font-size:11px;background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;border:1px solid var(--line-2);color:var(--text)}