:root {
  --telc-bg: #fafafa;
  --telc-surface: #ffffff;
  --telc-text: #212121;
  --telc-muted: #878a8d;
  --telc-border: #a3a5a5;
  --telc-border-light: #e6e6e6;
  --telc-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --telc-radius: 2px;
  --font: "Roboto", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body.app-body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--telc-text);
  background: var(--telc-bg);
}

.site-header {
  background: var(--telc-surface);
  border-bottom: 1px solid var(--telc-border);
  box-shadow: var(--telc-shadow);
}

.site-header-inner {
  width: min(1140px, 94vw);
  margin: 0 auto;
  padding: 0.65rem 0;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.brand-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 0;
}

.brand-link--static {
  cursor: default;
}

.brand-logo {
  display: block;
  height: 28px;
  width: auto;
}

.site-header-text {
  flex: 1 1 200px;
  min-width: 0;
}

.site-kicker {
  margin: 0;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--telc-muted);
}

.site-title {
  margin: 0.1rem 0 0;
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.25;
  color: var(--telc-text);
}

.site-header-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.main-area {
  padding: 1.5rem 0 2.5rem;
}

.container-inner {
  width: min(1140px, 94vw);
  margin: 0 auto;
}

.content-card {
  background: var(--telc-surface);
  border: 1px solid var(--telc-border-light);
  border-radius: var(--telc-radius);
  box-shadow: var(--telc-shadow);
}

.content-card--padded {
  padding: 1.25rem 1.35rem 1.5rem;
}

@media (min-width: 720px) {
  .content-card--padded {
    padding: 1.5rem 1.75rem 1.75rem;
  }
}

.certificate-card {
  background: var(--telc-surface);
  border: 1px solid var(--telc-border-light);
  border-radius: var(--telc-radius);
  box-shadow: var(--telc-shadow);
  padding: 1.5rem 1.75rem 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 1px solid var(--telc-text);
  border-radius: var(--telc-radius);
  padding: 0.5rem 1rem;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.2;
  background: var(--telc-text);
  color: var(--telc-surface);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  background: #000;
  border-color: #000;
}

.btn-ghost {
  background: transparent;
  color: var(--telc-text);
  border-color: var(--telc-border);
}

.btn-ghost:hover {
  background: rgba(0, 0, 0, 0.04);
  border-color: var(--telc-muted);
  color: var(--telc-text);
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.8125rem;
}

button.btn {
  border: 1px solid var(--telc-text);
}

.table-wrap {
  overflow-x: auto;
  margin: 0 -0.25rem;
}

.data-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.data-table thead th {
  text-align: left;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--telc-muted);
  padding: 0.65rem 0.75rem;
  border-bottom: 2px solid var(--telc-border-light);
  white-space: nowrap;
}

.data-table tbody td {
  padding: 0.75rem 0.75rem;
  border-bottom: 1px solid var(--telc-border-light);
  vertical-align: middle;
}

.data-table tbody tr:hover {
  background: rgba(0, 0, 0, 0.02);
}

.cell-strong {
  font-weight: 500;
}

.cell-actions {
  text-align: right;
  white-space: nowrap;
}

.cell-actions .btn + .btn {
  margin-left: 0.35rem;
}

.empty-state {
  margin: 0;
  color: var(--telc-muted);
  font-size: 0.9375rem;
}

.cell-verify {
  max-width: 220px;
  font-size: 0.75rem;
}

.verify-link-admin {
  display: block;
  word-break: break-all;
  color: var(--telc-text);
  margin-bottom: 0.5rem;
}

.verify-link-admin:hover {
  color: #000;
}

.verify-qr-thumb {
  display: block;
  border: 1px solid var(--telc-border-light);
  border-radius: var(--telc-radius);
  padding: 4px;
  background: #fff;
}

.admin-verify-panel {
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--telc-border-light);
}

.admin-verify-title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 500;
}

.admin-verify-hint {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  color: var(--telc-muted);
}

.admin-verify-qr {
  margin-top: 0.75rem;
}

.admin-verify-qr img {
  display: block;
  border: 1px solid var(--telc-border-light);
  border-radius: var(--telc-radius);
  padding: 6px;
  background: #fff;
}

.logout-form {
  display: inline;
  margin: 0;
}

.logout-form button {
  font: inherit;
}

.login-title {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  font-weight: 500;
}

.login-sub {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--telc-muted);
}

.login-error {
  margin: 0 0 1rem;
  padding: 0.65rem 0.75rem;
  background: #fdecea;
  border: 1px solid #e8a29b;
  border-radius: var(--telc-radius);
  font-size: 0.875rem;
  color: #611a15;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-form label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.login-submit {
  margin-top: 0.25rem;
  align-self: flex-start;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem 1.25rem;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--telc-muted);
}

input {
  width: 100%;
  border: 1px solid #bdbdbd;
  border-radius: var(--telc-radius);
  padding: 0.55rem 0.65rem;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--telc-text);
  background: var(--telc-surface);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:hover {
  border-color: #9e9e9e;
}

input:focus {
  outline: none;
  border-color: var(--telc-text);
  box-shadow: 0 0 0 1px var(--telc-text);
}

.form-actions {
  display: flex;
  align-items: flex-end;
}

.form-actions.full-width {
  grid-column: 1 / -1;
}

.form-actions .btn {
  min-width: 12rem;
}

.certificate-subtitle {
  margin: 0 0 1.25rem;
  font-size: 1rem;
  color: #424242;
  font-weight: 400;
}

.certificate-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.certificate-grid p {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin: 0;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--telc-border-light);
  font-size: 0.9375rem;
}

.field-label {
  flex-shrink: 0;
  color: var(--telc-muted);
  font-weight: 400;
}

.field-label--block {
  display: block;
  margin-bottom: 0.25rem;
}

.field-value {
  text-align: right;
  font-weight: 500;
  color: var(--telc-text);
  word-break: break-word;
}

.field-value--emphasis {
  font-weight: 700;
}

.verify-link {
  color: var(--telc-text);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-size: 0.875rem;
  word-break: break-all;
}

.verify-link:hover {
  color: #000;
}

.qr-row {
  margin-top: 1.35rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--telc-border-light);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.qr-image {
  width: 140px;
  height: 140px;
  border: 1px solid var(--telc-border-light);
  border-radius: var(--telc-radius);
  padding: 6px;
  background: var(--telc-surface);
  flex-shrink: 0;
}

.overline {
  text-transform: uppercase;
  color: var(--telc-muted);
  font-size: 0.82rem;
}

.subtitle {
  color: #424242;
}