:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #0f766e;
  --accent-soft: #ccfbf1;
  --danger: #b91c1c;
  --danger-soft: #fee2e2;
  --ok: #15803d;
  --ok-soft: #dcfce7;
  --abono: #1d4ed8;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
}
.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo { height: 44px; width: auto; }
h1 { font-size: 1.15rem; font-weight: 700; }
.subtitle { font-size: 0.8rem; color: var(--muted); }
.back-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
}
.back-link:hover { background: var(--accent-soft); }

.container { max-width: 1100px; margin: 0 auto; padding: 28px 24px 60px; width: 100%; flex: 1; }

.dropzone {
  background: var(--card);
  border: 2px dashed #94a3b8;
  border-radius: 14px;
  padding: 44px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.dropzone:hover, .dropzone.dragover { border-color: var(--accent); background: #f0fdfa; }
.dz-icon { font-size: 2.2rem; margin-bottom: 8px; }
.dz-title { font-weight: 700; font-size: 1.05rem; }
.dz-hint { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }
.dz-privacy { color: var(--muted); font-size: 0.78rem; margin-top: 14px; }

.hidden { display: none !important; }

h2 { font-size: 1rem; font-weight: 700; margin: 26px 0 12px; }

.file-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; }
.file-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 0.85rem;
}
.file-card .fname { font-weight: 600; word-break: break-all; margin-bottom: 6px; }
.file-card .fmeta { color: var(--muted); margin-bottom: 8px; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 700; }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--danger-soft); color: var(--danger); }

.results-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.pill { background: var(--accent-soft); color: var(--accent); border-radius: 20px; padding: 2px 10px; font-size: 0.8rem; }
.actions { display: flex; gap: 10px; }
.btn {
  border: none; border-radius: 8px; padding: 10px 18px;
  font-size: 0.875rem; font-weight: 700; cursor: pointer;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #115e59; }
.btn-secondary { background: var(--card); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg); }

.totals { display: flex; gap: 12px; flex-wrap: wrap; margin: 14px 0; }
.total-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 18px;
  min-width: 160px;
}
.total-card .tc-label { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.total-card .tc-value { font-size: 1.25rem; font-weight: 800; margin-top: 2px; }
.total-card.cargo .tc-value { color: var(--danger); }
.total-card.abono .tc-value { color: var(--abono); }

.table-wrap { background: var(--card); border: 1px solid var(--border); border-radius: 12px; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th, td { padding: 9px 14px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
td:nth-child(3) { white-space: normal; }
th { background: #f8fafc; font-size: 0.72rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
th.num, td.num { text-align: right; font-variant-numeric: tabular-nums; }
td.cargo { color: var(--danger); font-weight: 600; }
td.abono { color: var(--abono); font-weight: 600; }
tfoot td { font-weight: 800; background: #f8fafc; }
tbody tr:hover { background: #f8fafc; }

.errors { margin-top: 18px; }
.error-item {
  background: var(--danger-soft); color: var(--danger);
  border-radius: 8px; padding: 10px 14px; font-size: 0.85rem; margin-bottom: 8px;
}

.footer { text-align: center; padding: 18px; color: var(--muted); font-size: 0.75rem; border-top: 1px solid var(--border); background: var(--card); }