:root {
  --bg: #f6f2ea;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-strong: #ffffff;
  --text: #182226;
  --muted: #5f6e74;
  --line: rgba(24, 34, 38, 0.12);
  --primary: #0d6d62;
  --primary-deep: #084a43;
  --accent: #d88934;
  --danger: #be4c42;
  --success: #1f8f63;
  --shadow: 0 24px 60px rgba(19, 39, 37, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(216, 137, 52, 0.16), transparent 28%),
    radial-gradient(circle at top right, rgba(13, 109, 98, 0.15), transparent 30%),
    linear-gradient(180deg, #f9f6f1 0%, #f1ece3 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
textarea,
select {
  font: inherit;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 0.9rem 1.4rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  box-shadow: 0 14px 30px rgba(13, 109, 98, 0.22);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  border: 1px solid var(--line);
}

.button-danger {
  background: rgba(190, 76, 66, 0.1);
  color: var(--danger);
  border: 1px solid rgba(190, 76, 66, 0.2);
}

.button-block {
  width: 100%;
}

.panel,
.hero-card,
.success-card,
.stat-card,
.gift-admin-item,
.login-card {
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
  border-radius: var(--radius-lg);
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--accent);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.section-head h2,
.admin-header h1,
.hero-card h1,
.success-card h1,
.login-heading h1 {
  margin: 0;
}

.text-link {
  color: var(--primary);
  font-weight: 600;
}

.field,
.checkbox-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.field span,
.checkbox-field span {
  font-size: 0.95rem;
  color: var(--muted);
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
  background: rgba(255, 255, 255, 0.94);
  color: var(--text);
}

.field textarea {
  resize: vertical;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: rgba(13, 109, 98, 0.5);
  box-shadow: 0 0 0 4px rgba(13, 109, 98, 0.08);
}

.checkbox-field {
  flex-direction: row;
  align-items: center;
}

.checkbox-field input {
  width: 18px;
  height: 18px;
}

.form-grid {
  display: grid;
  gap: 1rem;
}

.compact-grid {
  gap: 0.8rem;
}

.field-full {
  grid-column: 1 / -1;
}

.flash-list {
  display: grid;
  gap: 0.8rem;
  margin: 1rem 0;
}

.flash-list.compact {
  margin: 0 0 1rem;
}

.flash {
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
  font-size: 0.95rem;
}

.flash-error {
  background: rgba(190, 76, 66, 0.12);
  color: #8d2d25;
}

.flash-success {
  background: rgba(31, 143, 99, 0.12);
  color: #0e6945;
}

.empty-text,
.login-tip {
  color: var(--muted);
}

.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.tag-success {
  background: rgba(31, 143, 99, 0.12);
  color: var(--success);
}

.tag-muted {
  background: rgba(95, 110, 116, 0.12);
  color: var(--muted);
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
}

.login-body {
  display: grid;
  place-items: center;
  padding: 2rem;
}

.login-shell {
  width: min(100%, 480px);
}

.login-card {
  padding: 2rem;
}

.login-heading {
  margin-bottom: 1.5rem;
}

.login-heading p {
  color: var(--muted);
  margin-bottom: 0;
}

.admin-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

.admin-sidebar {
  padding: 2rem 1.5rem;
  background: rgba(9, 28, 29, 0.92);
  color: rgba(255, 255, 255, 0.88);
}

.admin-brand {
  font-size: 1.6rem;
  font-weight: 700;
}

.admin-brand-subtitle {
  margin-top: 0.35rem;
  color: rgba(255, 255, 255, 0.58);
}

.admin-nav {
  display: grid;
  gap: 0.6rem;
  margin-top: 2rem;
}

.admin-nav a {
  padding: 0.95rem 1rem;
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.78);
}

.admin-nav a.active,
.admin-nav a:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.admin-main {
  padding: 2rem;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.admin-header p {
  margin-bottom: 0;
  color: var(--muted);
}

.stats-grid,
.two-column {
  display: grid;
  gap: 1.2rem;
  margin-top: 1.5rem;
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-card {
  padding: 1.4rem;
}

.stat-card span {
  display: block;
  color: var(--muted);
  margin-bottom: 0.7rem;
}

.stat-card strong {
  font-size: 2rem;
}

.two-column {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
}

.wide-left {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.4fr);
}

.panel {
  padding: 1.4rem;
}

.ranking-list,
.compact-table,
.gift-admin-list {
  display: grid;
  gap: 1rem;
}

.ranking-item,
.compact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.ranking-item span,
.compact-row span {
  display: block;
  color: var(--muted);
  margin-top: 0.35rem;
}

.gift-admin-item {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem;
}

.gift-admin-item img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 18px;
}

.gift-admin-content {
  display: grid;
  gap: 1rem;
}

.gift-detail-box {
  display: grid;
  gap: 0.45rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.72);
}

.gift-detail-box span {
  color: var(--muted);
  font-size: 0.92rem;
}

.gift-detail-box p {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.6;
}

.settings-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 1.2rem;
  margin-top: 1.5rem;
}

.settings-stack {
  display: grid;
  gap: 1rem;
}

.warning-box {
  padding: 1rem;
  border-radius: var(--radius-sm);
  background: rgba(216, 137, 52, 0.12);
  color: #8b5a19;
  line-height: 1.7;
}

.qr-panel {
  display: grid;
  align-content: start;
}

.settings-admin-grid {
  margin-top: 1.2rem;
}

.admin-account-list {
  display: grid;
  gap: 1rem;
}

.admin-account-card {
  display: grid;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.72);
}

.admin-account-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.admin-account-meta strong {
  font-size: 1.05rem;
}

.account-password-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: end;
}

.account-password-form .button {
  justify-self: start;
}

.qr-box {
  display: grid;
  place-items: center;
  padding: 1.5rem;
  border: 1px dashed var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.72);
}

.qr-svg {
  width: min(100%, 320px);
  height: auto;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: end;
}

.filter-bar .field {
  min-width: 220px;
  flex: 1;
}

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

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.95rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.data-table thead th {
  font-size: 0.92rem;
  color: var(--muted);
}

.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 1.2rem;
}

.pagination a,
.pagination span {
  padding: 0.6rem 1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--line);
}

.pagination .disabled {
  color: var(--muted);
}

.public-body {
  min-height: 100vh;
}

.redeem-shell {
  width: min(100%, 860px);
  margin: 0 auto;
  padding: 1rem 1rem 2rem;
}

.hero-card,
.success-card {
  padding: 1.6rem;
  margin-top: 1rem;
}

.hero-card p,
.success-card p {
  color: var(--muted);
  margin-bottom: 0;
}

.public-panel {
  margin-top: 1rem;
}

.public-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.public-form > .section-head {
  grid-column: 1 / -1;
  margin-bottom: 0.2rem;
}

.region-picker {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.gift-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.gift-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.gift-option {
  position: relative;
}

.gift-select-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent) 0%, #b8661a 100%);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: 0 10px 20px rgba(184, 102, 26, 0.28);
  opacity: 0;
  transform: translateY(-6px) scale(0.96);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}

.gift-option-card {
  display: grid;
  gap: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 0.9rem;
  background: rgba(255, 255, 255, 0.86);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.gift-option-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 18px;
}

.gift-option-card small {
  color: var(--muted);
}

.gift-detail-text {
  display: -webkit-box;
  overflow: hidden;
  white-space: pre-wrap;
  line-height: 1.6;
  color: var(--text);
  font-style: normal;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.gift-option input:checked + .gift-option-card {
  border-color: rgba(13, 109, 98, 0.9);
  background:
    linear-gradient(180deg, rgba(13, 109, 98, 0.14) 0%, rgba(255, 255, 255, 0.98) 52%),
    rgba(255, 255, 255, 0.98);
  box-shadow:
    0 0 0 5px rgba(13, 109, 98, 0.2),
    0 24px 54px rgba(13, 109, 98, 0.28);
  transform: translateY(-5px) scale(1.015);
}

.gift-option input:checked + .gift-option-card b {
  color: var(--primary-deep);
  font-size: 1.08rem;
}

.gift-option input:checked + .gift-option-card img {
  box-shadow: 0 12px 28px rgba(13, 109, 98, 0.22);
}

.gift-option input:checked + .gift-option-card small {
  color: var(--primary-deep);
  font-weight: 600;
}

.gift-option input:checked + .gift-option-card .gift-select-badge {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.empty-state {
  text-align: center;
  padding: 2rem 1rem;
}

.public-entry-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.history-form {
  grid-template-columns: minmax(0, 1fr);
}

.history-list {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.history-card {
  padding: 1.4rem;
}

.history-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.history-card-head h2 {
  margin: 0.35rem 0 0;
}

.history-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.history-item {
  display: grid;
  gap: 0.35rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.74);
}

.history-item span {
  color: var(--muted);
  font-size: 0.92rem;
}

.history-item-full {
  grid-column: 1 / -1;
}

.success-shell {
  display: grid;
  place-items: center;
  min-height: 100vh;
}

.success-card {
  width: min(100%, 480px);
  text-align: center;
}

.success-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.2rem;
}

@media (max-width: 1080px) {
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .settings-grid,
  .two-column,
  .wide-left {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 920px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    padding-bottom: 1rem;
  }

  .admin-nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .admin-main,
  .login-body,
  .redeem-shell {
    padding: 1rem;
  }

  .admin-header,
  .section-head,
  .pagination {
    flex-direction: column;
    align-items: stretch;
  }

  .gift-admin-item {
    grid-template-columns: 1fr;
  }

  .public-form,
  .region-picker,
  .gift-grid,
  .stats-grid,
  .history-grid {
    grid-template-columns: 1fr;
  }

  .public-entry-bar,
  .history-card-head,
  .admin-account-meta {
    flex-direction: column;
    align-items: stretch;
  }

  .account-password-form {
    grid-template-columns: 1fr;
  }

  .gift-option-card img {
    aspect-ratio: 1.3 / 1;
  }
}