:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --card-bg: #ffffff;
  --border: #dde1e6;
  --text: #1f2328;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --badge-bg: #eef2ff;
  --badge-text: #3730a3;
}

* {
  box-sizing: border-box;
}

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

.stats-bar {
  position: fixed;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  z-index: 10;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 60px;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 700;
}

.stat-label {
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.reviewer-bar {
  position: fixed;
  top: 16px;
  left: 16px;
  font-size: 0.85rem;
  color: var(--muted);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 14px;
  z-index: 10;
}

.reviewer-bar button {
  margin-left: 8px;
  font-size: 0.75rem;
  border: none;
  background: none;
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 90px 20px 40px;
}

h1 {
  font-size: 1.4rem;
  text-align: center;
  margin-bottom: 24px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.source-badge {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--badge-bg);
  color: var(--badge-text);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 6px;
  margin-top: 16px;
}

textarea {
  width: 100%;
  font-size: 1.05rem;
  font-family: inherit;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  resize: vertical;
}

textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.counts {
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--muted);
}

.btn-row {
  display: flex;
  gap: 10px;
  margin-top: 22px;
}

#verify-btn,
#split-save-btn {
  flex: 1;
  padding: 12px;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

#verify-btn:hover,
#split-save-btn:hover {
  background: var(--accent-hover);
}

#verify-btn:disabled,
#split-save-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.secondary-btn {
  flex: 1;
  padding: 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--card-bg);
  border: 1px solid var(--accent);
  border-radius: 8px;
  cursor: pointer;
}

.secondary-btn:hover {
  background: var(--badge-bg);
}

#split-toggle-btn,
#split-add-row-btn {
  width: 100%;
}

.skip-btn {
  margin-top: 10px;
  width: 100%;
  padding: 8px;
  font-size: 0.8rem;
  color: var(--muted);
  background: none;
  border: 1px dashed var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.skip-btn:hover {
  color: var(--text);
  border-color: var(--muted);
}

.split-help {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 14px;
}

.split-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 10px;
}

.split-row textarea {
  flex: 1;
  font-size: 0.95rem;
}

.split-row-remove {
  border: none;
  background: none;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 6px;
}

.split-row-remove:hover {
  color: #dc2626;
}

#done-card {
  text-align: center;
  font-size: 1.1rem;
}

.admin-link {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 10px 18px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--card-bg);
  border: 1px solid var(--accent);
  border-radius: 8px;
  text-decoration: none;
  z-index: 10;
}

.admin-link:hover {
  background: var(--badge-bg);
}

.admin-section-title {
  font-size: 1.05rem;
  margin: 0 0 12px;
}

#download-btn {
  padding: 12px 20px;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

#download-btn:hover {
  background: var(--accent-hover);
}

#download-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.export-status-inline {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--muted);
}

.admin-card-spaced {
  margin-top: 20px;
}

#change-password-form input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
}

#change-password-btn {
  margin-top: 18px;
  padding: 10px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

#change-password-btn:hover {
  background: var(--accent-hover);
}

#change-password-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.admin-logout-btn {
  display: block;
  margin: 20px auto 0;
  padding: 0;
  font-size: 0.8rem;
  color: var(--muted);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
}

.admin-logout-btn:hover {
  color: var(--text);
}

.login-body {
  display: flex;
  min-height: 100vh;
}

.login-main {
  margin: auto;
  padding: 20px;
  width: 100%;
  max-width: 360px;
}

.login-card h1 {
  font-size: 1.2rem;
  text-align: center;
  margin: 0 0 8px;
}

.login-card form {
  display: flex;
  flex-direction: column;
}

.login-card input {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
}

.login-card label {
  margin-top: 14px;
}

#login-btn {
  margin-top: 20px;
  padding: 12px;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

#login-btn:hover {
  background: var(--accent-hover);
}

#login-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.tab-bar {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-panel[hidden] {
  display: none;
}

#add-verifier-form input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
}

#add-verifier-btn {
  margin-top: 18px;
  padding: 10px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

#add-verifier-btn:hover {
  background: var(--accent-hover);
}

#add-verifier-btn:disabled {
  opacity: 0.6;
  cursor: default;
}

.verifiers-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.verifiers-table th,
.verifiers-table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
}

.verifiers-table th {
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.verifier-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.verifier-action-btn {
  flex: none;
  padding: 6px 10px;
  font-size: 0.8rem;
}

.verifier-delete-btn {
  padding: 6px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #dc2626;
  background: none;
  border: 1px solid #dc2626;
  border-radius: 8px;
  cursor: pointer;
}

.verifier-delete-btn:hover {
  background: #fef2f2;
}

#reset-password-form {
  display: flex;
  gap: 8px;
}

#reset-password-input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
}

#reset-password-form button {
  padding: 8px 14px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

#reset-password-form button:hover {
  background: var(--accent-hover);
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-overlay[hidden] {
  display: none;
}

.modal {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 28px 32px;
  max-width: 360px;
  width: 90%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.modal h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.modal p {
  margin: 0 0 16px;
  font-size: 0.85rem;
  color: var(--muted);
}

#reviewer-form {
  display: flex;
  gap: 8px;
}

#reviewer-input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
}

#reviewer-form button {
  padding: 8px 14px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

#reviewer-form button:hover {
  background: var(--accent-hover);
}

@media (max-width: 640px) {
  .stats-bar,
  .reviewer-bar {
    position: static;
    width: 100%;
    border-radius: 0;
    box-sizing: border-box;
  }

  .stats-bar {
    justify-content: space-around;
  }

  .reviewer-bar {
    text-align: center;
  }

  main {
    padding: 20px 16px 90px;
  }

  h1 {
    font-size: 1.15rem;
  }

  .card {
    padding: 18px;
  }

  .btn-row {
    flex-direction: column;
  }

  .split-row {
    flex-direction: column;
    align-items: stretch;
  }

  .split-row-remove {
    align-self: flex-end;
  }

  .admin-link {
    right: 12px;
    bottom: 12px;
    padding: 10px 14px;
    font-size: 0.8rem;
  }

  .modal {
    padding: 22px;
  }

  #reviewer-form {
    flex-direction: column;
  }
}