:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --soft: #eef5fb;
  --soft-2: #f8fbff;
  --text: #172033;
  --muted: #607089;
  --line: #d8e0ea;
  --primary: #245b89;
  --primary-dark: #1d4b72;
  --success: #146c43;
  --warning: #946200;
  --error: #b42318;
  --shadow: 0 10px 28px rgba(30, 54, 84, .08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
}

.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--line);
  padding: 22px 16px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand-block {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 8px 6px 18px;
  border-bottom: 1px solid var(--line);
}
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--soft);
  color: var(--primary);
  font-weight: 800;
}
.brand-block strong { display: block; }
.brand-block span { color: var(--muted); font-size: 13px; }

.nav-group { display: grid; gap: 10px; }
.nav-label {
  text-transform: uppercase;
  letter-spacing: .14em;
  color: #7b8798;
  font-size: 11px;
  font-weight: 800;
  margin: 2px 6px;
}
.converter-item {
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 14px;
  background: #fff;
  color: var(--text);
  display: grid;
  gap: 3px;
  cursor: pointer;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.converter-item:hover { border-color: #b9c9d9; box-shadow: 0 8px 18px rgba(36, 91, 137, .08); }
.converter-item span { font-weight: 800; }
.converter-item small { color: var(--muted); }
.converter-item.active { background: var(--soft); border-color: #b7d3e8; }
.sidebar-note {
  margin-top: auto;
  color: var(--muted);
  background: var(--soft-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  display: grid;
  gap: 4px;
  font-size: 13px;
}
.sidebar-note strong { color: var(--text); }

.workspace { min-width: 0; }
.hero {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 34px clamp(20px, 6vw, 72px);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}
.hero h1 { margin: 6px 0 10px; font-size: clamp(28px, 4vw, 42px); color: #142238; }
.hero p { max-width: 900px; margin: 0; color: var(--muted); line-height: 1.5; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: 12px; color: var(--primary); font-weight: 800; }
.status-pill { border: 1px solid #cdddeb; border-radius: 999px; padding: 9px 13px; white-space: nowrap; background: var(--soft); color: var(--primary-dark); font-weight: 700; }
main { width: min(1280px, calc(100% - 32px)); margin: 24px auto 56px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 22px; margin-bottom: 18px; box-shadow: var(--shadow); }
.section-heading { display: flex; justify-content: space-between; gap: 20px; margin-bottom: 16px; }
.section-heading.align-center { align-items: center; }
h2 { margin: 0 0 6px; font-size: 20px; }
p { margin: 0; color: var(--muted); line-height: 1.45; }

.upload-form { display: grid; gap: 14px; }
.file-drop {
  display: grid;
  place-items: center;
  gap: 7px;
  min-height: 145px;
  border: 1.5px dashed #b7c7d7;
  background: var(--soft-2);
  border-radius: 18px;
  padding: 22px;
  text-align: center;
  cursor: pointer;
}
.file-drop input { display: none; }
.upload-icon { font-size: 28px; color: var(--primary); }
.file-drop small { max-width: 760px; color: var(--muted); }
button, .download-button {
  border: 0;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  padding: 12px 16px;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
button:hover, .download-button:hover { background: var(--primary-dark); }
button:disabled { opacity: .55; cursor: not-allowed; }
.secondary, .secondary-link { background: #eef3f8; color: var(--primary-dark); border: 1px solid #d3dfeb; }
.secondary:hover, .secondary-link:hover { background: #e2edf7; }
.button-row { display: flex; gap: 8px; flex-wrap: wrap; }

.message { margin-top: 14px; padding: 12px 14px; border-radius: 12px; border: 1px solid; }
.message.info { background: #eef5fb; color: #1f4e78; border-color: #c9dced; }
.message.success { background: #ecfdf3; color: var(--success); border-color: #b7e4c7; }
.message.warning { background: #fff8e6; color: var(--warning); border-color: #f1d28a; }
.message.error { background: #fff1f0; color: var(--error); border-color: #f2b8b5; }
.hidden { display: none !important; }

.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 14px 0 18px; }
.summary-card { background: var(--soft-2); border: 1px solid var(--line); border-radius: 14px; padding: 13px; display: grid; gap: 4px; }
.summary-card strong { font-size: 18px; color: var(--text); }
.summary-card span { font-size: 12px; color: var(--muted); }

.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; min-width: 980px; }
th, td { padding: 11px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 14px; }
th { background: #f2f6fa; color: #344054; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
tbody tr:hover { background: #fbfdff; }
.notes { color: var(--muted); max-width: 320px; }
.status { display: inline-block; border-radius: 999px; padding: 4px 9px; font-size: 12px; font-weight: 800; }
.status.eligible { background: #ecfdf3; color: var(--success); }
.status.manual { background: #eef5fb; color: #1f4e78; }
.status.issue { background: #fff8e6; color: var(--warning); }
.status.disabled { background: #f2f4f7; color: #667085; }
.status.review { background: #fdf2fa; color: #9a1b60; }

.checkbox-row { display: flex; gap: 10px; align-items: flex-start; margin: 16px 0; color: var(--muted); }
.checkbox-row.tight { margin: 8px 0 0; }
.checkbox-row input { margin-top: 3px; }
.approval-panel { margin: 16px 0; border: 1px solid #c8ddf0; background: #f4f9fd; border-radius: 14px; padding: 14px; display: grid; gap: 8px; }
.approval-panel strong { color: var(--primary-dark); }
.download-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.rules-card { box-shadow: none; }
.rules-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.rules-grid div { border: 1px solid var(--line); background: var(--soft-2); border-radius: 14px; padding: 13px; display: grid; gap: 5px; }
.rules-grid strong { color: var(--text); }
.rules-grid span { color: var(--muted); font-size: 13px; }

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  .hero { flex-direction: column; align-items: flex-start; }
  .section-heading.align-center { align-items: flex-start; flex-direction: column; }
}