:root {
  --color-bg: #f4f6fb;
  --color-surface: #ffffff;
  --color-border: #e4e8f1;
  --color-text: #16192b;
  --color-text-muted: #667085;
  --color-primary: #4f46e5;
  --color-primary-hover: #4338ca;
  --color-primary-soft: #eef1ff;
  --color-green: #059669;
  --color-green-soft: #ecfdf5;
  --color-red: #dc2626;
  --color-red-soft: #fef2f2;
  --color-amber: #b45309;
  --color-amber-soft: #fffbeb;
  --color-blue: #2563eb;
  --color-blue-soft: #eff6ff;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.05);
  --shadow-md: 0 2px 8px rgba(16, 24, 40, 0.06), 0 1px 2px rgba(16, 24, 40, 0.04);
  --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  font-family: var(--font-sans);
  margin: 0;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

main {
  padding: 2rem 2.5rem 4rem;
  max-width: 1080px;
  margin: 0 auto;
}

a { color: var(--color-primary); }

code {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85em;
}

h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1rem;
  transition: color 0.15s ease;
}
.back-link:hover { color: var(--color-primary); }

/* ---------- Topbar ---------- */

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 2.5rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar .brand {
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--color-text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  letter-spacing: -0.01em;
}
.topbar .brand .brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), #7c3aed);
  color: #fff;
  font-size: 0.95rem;
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.topbar .user-area {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}
.topbar .user-area strong { color: var(--color-text); }

.topbar-link,
.topbar .user-area .inline-form button {
  display: inline-flex;
  align-items: center;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.35rem 0.7rem;
  margin: 0;
  font-family: inherit;
  font-size: 0.82rem;
  text-decoration: none;
  color: var(--color-text-muted);
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.topbar-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}
.topbar .user-area .inline-form button:hover {
  color: var(--color-red);
  border-color: #fecaca;
  background: var(--color-red-soft);
}

/* ---------- Auth page ---------- */

.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 15%, rgba(79, 70, 229, 0.12), transparent 40%),
    radial-gradient(circle at 85% 85%, rgba(124, 58, 237, 0.10), transparent 40%),
    var(--color-bg);
}
.auth-card {
  background: var(--color-surface);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  width: 360px;
}
.auth-card .brand-mark-lg {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), #7c3aed);
  color: #fff;
  font-size: 1.4rem;
  margin-bottom: 1.1rem;
}
.auth-card h1 {
  font-size: 1.2rem;
  margin-top: 0;
  margin-bottom: 0.25rem;
}
.auth-card .subtitle {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  margin-top: 0;
  margin-bottom: 1.5rem;
}
.auth-card form { display: flex; flex-direction: column; gap: 0.3rem; }
.auth-card label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text);
  margin-top: 0.75rem;
}
.auth-card button[type="submit"] { margin-top: 1.4rem; width: 100%; }

/* ---------- Form controls ---------- */

input[type="text"],
input[type="password"],
input[type="file"],
select {
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}
input[type="file"] {
  padding: 0.5rem;
  cursor: pointer;
}
input[type="file"]::file-selector-button {
  padding: 0.4rem 0.8rem;
  margin-right: 0.75rem;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s ease;
}
input[type="file"]::file-selector-button:hover { background: #e0e4ff; }

.error {
  background: var(--color-red-soft);
  color: var(--color-red);
  border: 1px solid #fecaca;
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.8rem;
  margin: 0 0 1rem;
  font-size: 0.85rem;
  font-weight: 500;
}

.status-message {
  color: var(--color-green);
  font-size: 0.88rem;
  margin: 0 0 1rem;
}

.field-hint {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin: 0 0 0.3rem;
}

/* ---------- Buttons ---------- */

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background 0.15s ease, transform 0.05s ease;
}
.button:hover { background: var(--color-primary-hover); }
.button:active { transform: translateY(1px); }

.button-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  box-shadow: none;
}
.button-secondary:hover { background: #f8f9fc; }

.button-danger {
  background: var(--color-surface);
  color: var(--color-red);
  border: 1px solid #fecaca;
  box-shadow: none;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}
.button-danger:hover { background: var(--color-red-soft); }

.button-link {
  border: none;
  background: none;
  color: var(--color-primary);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: inherit;
  padding: 0;
  transition: color 0.15s ease;
}
.button-link:hover { color: var(--color-primary-hover); }

.job-form button[type="submit"] { margin-top: 1.4rem; align-self: flex-start; }

/* ---------- Page layout helpers ---------- */

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.4rem;
}
.title-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.meta {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  margin-top: 0;
  margin-bottom: 1.4rem;
}
.actions-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.4rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.75rem;
}

.job-form {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  max-width: 460px;
}
.settings-form { max-width: 560px; }
.job-form label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
  margin-top: 1rem;
}
.job-form label:first-of-type { margin-top: 0; }

/* ---------- Tables ---------- */

.table-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.table-scroll { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
}
th, td {
  text-align: left;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
thead th {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  background: #fafbfd;
  font-weight: 700;
}
tbody tr { transition: background 0.1s ease; }
tbody tr:hover { background: #fafbff; }
tbody tr:last-child td { border-bottom: none; }

.jobs-table td a {
  font-weight: 600;
  text-decoration: none;
  color: var(--color-text);
}
.jobs-table td a:hover { color: var(--color-primary); }

.questions-table { table-layout: fixed; }
.questions-table th:first-child, .questions-table td:first-child { width: 2.25rem; }
.questions-table th:nth-child(2), .questions-table td:nth-child(2) { width: 2.5rem; }
.questions-table th:nth-child(5), .questions-table td:nth-child(5) { width: 6.5rem; }
.questions-table th:last-child, .questions-table td:last-child { width: 6.5rem; }
.questions-table input[type="checkbox"] { width: 16px; height: 16px; cursor: pointer; }
.cell-text {
  white-space: pre-wrap;
  font-size: 0.87rem;
  line-height: 1.5;
  color: #33374a;
}

tr.match-mismatch td:first-child { box-shadow: inset 3px 0 0 var(--color-red); }
tr.match-uncertain td:first-child { box-shadow: inset 3px 0 0 var(--color-amber); }
tr.match-match td:first-child { box-shadow: inset 3px 0 0 var(--color-green); }

/* ---------- Badges ---------- */

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.22rem 0.65rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: capitalize;
  letter-spacing: 0.01em;
  background: #eef0f5;
  color: #475066;
}
.status-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.status-processing { background: var(--color-amber-soft); color: var(--color-amber); }
.status-done { background: var(--color-green-soft); color: var(--color-green); }
.status-failed { background: var(--color-red-soft); color: var(--color-red); }
.status-resolved { background: var(--color-blue-soft); color: var(--color-blue); }
.status-cancelled { background: #eef0f5; color: #475066; }
.status-match { background: var(--color-green-soft); color: var(--color-green); }
.status-mismatch { background: var(--color-red-soft); color: var(--color-red); }
.status-uncertain { background: var(--color-amber-soft); color: var(--color-amber); }

/* ---------- Callouts ---------- */

.callout {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  padding: 1rem 1.15rem;
  border-radius: var(--radius-md);
  background: var(--color-blue-soft);
  border: 1px solid #bfdbfe;
  margin: 1rem 0;
  font-size: 0.9rem;
}
.callout p { margin: 0; }
.callout-body { flex: 1; min-width: 200px; }
.callout .inline-form { margin-left: auto; }
.callout-error { background: var(--color-red-soft); border-color: #fecaca; }

/* ---------- Empty states ---------- */

.empty-state {
  text-align: center;
  padding: 3.5rem 2rem;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
}
.empty-state .empty-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}
.empty-state p { margin: 0 0 1rem; }

/* ---------- Processing overlay ---------- */

.processing-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(22, 25, 43, 0.55);
  backdrop-filter: blur(2px);
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.processing-overlay.visible { display: flex; }

.processing-overlay-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.25rem 2.5rem;
  max-width: 380px;
  text-align: center;
}
.processing-overlay-title {
  font-weight: 700;
  font-size: 1.05rem;
  margin: 1.1rem 0 0.4rem;
}
.processing-overlay-subtitle {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin: 0;
  line-height: 1.5;
}

.spinner {
  width: 36px;
  height: 36px;
  margin: 0 auto;
  border: 3px solid var(--color-primary-soft);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  main { padding: 1.25rem 1.25rem 3rem; }
  .topbar { padding: 0.8rem 1.25rem; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 0.6rem; }
}