:root {
  --accent: #e8762c;
  --accent-dark: #f4923c;
  --green: #5fb68a;
  --green-bg: #1d3328;
  --green-border: #2f4d3d;
  --gray: #9aa0a8;
  --gray-bg: #2c2f37;
  --blue-bg: #1f2d40;
  --blue: #7badf0;
  --red: #ff8a8a;
  --red-bg: #3a1f22;
  --red-border: #5a2c30;
  --purple: #b89af0;
  --purple-bg: #2c2440;
  --border: #3a3e47;
  --text: #e8e9eb;
  --text-light: #9aa0a8;
  --bg: #15171c;
  --surface: #23262d;
  --radius: 10px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: linear-gradient(180deg, #1b1e24 0%, #15171c 100%);
  color: var(--text);
  margin: 0;
  padding: 2rem 1rem;
  min-height: 100vh;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  background: var(--surface);
  padding: 2rem 2.25rem;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.container.narrow {
  max-width: 420px;
  margin-top: 4rem;
}

h1 {
  margin-top: 0;
  font-size: 1.5rem;
  font-weight: 700;
}

h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.topbar {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.topbar h1 { margin: 0; }

.brand {
  margin-bottom: 1.5rem;
}

.brand-name {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text);
  border-bottom: 3px solid var(--accent);
  padding-bottom: 0.25rem;
  text-decoration: none;
}

.container.narrow .brand {
  text-align: center;
}

.container.narrow .brand-name {
  display: inline-block;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.menu-toggle {
  display: none;
}

@media (max-width: 640px) {
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.4rem;
    height: 2.4rem;
    background: transparent;
    color: var(--text-light);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1.2rem;
    line-height: 1;
    cursor: pointer;
  }

  .menu-toggle:hover {
    background: var(--gray-bg);
  }

  .topbar-actions {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.4rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.6rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 20;
    min-width: 200px;
  }

  .topbar-actions.open {
    display: flex;
  }

  .topbar-actions form {
    width: 100%;
  }

  .topbar-actions .button-link,
  .topbar-actions button.logout {
    width: 100%;
    text-align: center;
  }
}

button.logout,
.button-link {
  background: transparent;
  color: var(--text-light);
  border: 1px solid var(--border);
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
}

button.logout:hover,
.button-link:hover {
  background: var(--gray-bg);
  opacity: 1;
}

.button-link {
  display: inline-block;
  border-radius: 6px;
  text-decoration: none;
  color: var(--text-light);
  transition: background-color 0.15s;
}

label {
  display: block;
  margin-bottom: 1.1rem;
  font-weight: 600;
  font-size: 0.95rem;
}

input {
  display: block;
  width: 100%;
  padding: 0.75rem 0.85rem;
  margin-top: 0.4rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--gray-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(232, 118, 44, 0.15);
}

select {
  display: block;
  width: 100%;
  padding: 0.75rem 0.85rem;
  margin-top: 0.4rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--gray-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}

button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.75rem 1.6rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color 0.15s, transform 0.05s;
}

button:hover { background: var(--accent-dark); }
button:active { transform: translateY(1px); }

button.redeem {
  background: #2f7a52;
}

button.redeem:hover { background: #25613f; }

.small-note {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: -0.5rem;
  margin-bottom: 1.1rem;
}

.hint {
  font-size: 0.85rem;
  color: var(--text-light);
  background: var(--gray-bg);
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  margin-bottom: 1rem;
}

.hint code {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.05rem 0.3rem;
  font-size: 0.8rem;
}

.error {
  color: var(--red);
  font-weight: 600;
  background: var(--red-bg);
  border: 1px solid var(--red-border);
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  margin-bottom: 1rem;
}

.success {
  color: var(--green);
  font-weight: 600;
  background: var(--green-bg);
  border: 1px solid var(--green-border);
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  margin-bottom: 1rem;
}

.flash {
  position: relative;
  padding-right: 2.25rem;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.flash.flash-hide {
  opacity: 0;
  transform: translateY(-6px);
}

.flash-close {
  position: absolute;
  top: 0.4rem;
  right: 0.5rem;
  background: transparent;
  border: none;
  color: inherit;
  font-size: 1.1rem;
  line-height: 1;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  cursor: pointer;
  opacity: 0.6;
}

.flash-close:hover {
  opacity: 1;
}

tr.highlighted td {
  background-color: #4a3a12;
}

.result {
  margin-top: 1.5rem;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--gray-bg);
}

.result.result-active {
  background: var(--green-bg);
  border-color: var(--green-border);
}

.result p {
  margin-top: 0;
}

.reward {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.reward strong {
  color: var(--green);
  font-size: 1.25rem;
}

.last-transaction {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--text-light);
}

.last-transaction strong {
  color: var(--text);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

th {
  text-align: left;
  padding: 0.6rem 0.6rem;
  border-bottom: 2px solid var(--border);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-light);
  font-weight: 700;
}

td {
  text-align: left;
  padding: 0.65rem 0.6rem;
  border-bottom: 1px solid var(--border);
}

tbody tr:hover {
  background: #2a2d34;
}

.badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: capitalize;
}

.badge-active {
  background: var(--green-bg);
  color: var(--green);
}

.badge-redeemed {
  background: var(--blue-bg);
  color: var(--blue);
}

.badge-expired {
  background: var(--gray-bg);
  color: var(--gray);
}

.badge-revoked {
  background: var(--red-bg);
  color: var(--red);
}

.badge-replaced {
  background: var(--purple-bg);
  color: var(--purple);
}

.badge-registered {
  background: var(--green-bg);
  color: var(--green);
}

.badge-unregistered {
  background: var(--gray-bg);
  color: var(--gray);
}

.badge-flagged {
  background: #3d2c1c;
  color: var(--accent-dark);
  margin-left: 0.4rem;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.section-head h2 {
  margin-bottom: 0;
}

details > summary {
  cursor: pointer;
  list-style: none;
}

details > summary::-webkit-details-marker {
  display: none;
}

.action-buttons {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.action-buttons form {
  display: inline;
}

.action-buttons button.button-link {
  cursor: pointer;
  font-family: inherit;
}

.inline-edit-form {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
  align-items: center;
}

.inline-edit-form input {
  width: auto;
  margin-top: 0;
  padding: 0.4rem 0.6rem;
  font-size: 0.9rem;
}

.inline-edit-form button {
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
}

.search-form {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
  align-items: center;
  flex-wrap: wrap;
}

.search-form input {
  width: auto;
  margin-top: 0;
  flex: 1;
  min-width: 180px;
}

.search-form select {
  padding: 0.6rem 0.7rem;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--gray-bg);
}

.search-form button {
  padding: 0.6rem 1.2rem;
}

.search-form .date-filter {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
}

.search-form .date-filter input {
  width: auto;
  flex: none;
  min-width: 0;
  margin-top: 0;
  padding: 0.55rem 0.6rem;
}

.settings-form {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  align-items: flex-end;
}

.settings-form label {
  flex: 1;
  min-width: 180px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.checkbox-label input {
  display: inline-block;
  width: auto;
  margin-top: 0;
}

section {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

section:first-of-type {
  margin-top: 1.5rem;
  padding-top: 0;
  border-top: none;
}

.table-wrap {
  overflow-x: auto;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
}

.pagination-info {
  font-size: 0.85rem;
  color: var(--text-light);
}

.pagination-jump {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-light);
}

.pagination-jump label {
  margin-bottom: 0;
  font-weight: 600;
}

.pagination-jump input {
  width: 4.5rem;
  margin-top: 0;
  padding: 0.35rem 0.5rem;
}

.pagination-jump button {
  padding: 0.35rem 0.9rem;
  font-size: 0.85rem;
}

.actions-cell .action-buttons {
  flex-wrap: nowrap;
  white-space: nowrap;
}

details > summary h2 {
  display: inline;
}

tbody tr:not(:has(td[colspan])) {
  cursor: pointer;
}