:root {
  color-scheme: light;
  --paper: #fff8fb;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --ink: #30252b;
  --muted: #7a6670;
  --rose: #f29ab2;
  --rose-strong: #cf4e75;
  --mint: #98d8c4;
  --sun: #f6c36f;
  --line: rgba(89, 61, 76, 0.14);
  --shadow: 0 1.5rem 4rem rgba(157, 91, 118, 0.18);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-width: 20rem;
  min-height: 100vh;
  color: var(--ink);
  font-family:
    ui-rounded,
    "Hiragino Maru Gothic ProN",
    "Noto Sans TC",
    system-ui,
    sans-serif;
  background:
    linear-gradient(135deg, rgba(242, 154, 178, 0.35), transparent 70%),
    var(--surface-strong);
}

button,
input {
  font: inherit;
}

button {
  min-height: 2.75rem;
  border: 0;
  border-radius: 0.5rem;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

input {
  width: 100%;
  min-height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.7rem 0.85rem;
  color: var(--ink);
  background: var(--surface-strong);
  outline: none;
}

input:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(207, 78, 117, 0.28);
  outline-offset: 2px;
}

.shell {
  width: min(100%, 76rem);
  margin: 0 auto;
  padding: 1rem;
}

.topbar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin: 1rem 0 1.25rem;
  text-align: center;
}

.brand-link {
  display: block;
  width: min(10rem, 100%);
  border-radius: 0.5rem;
}

.brand-logo {
  display: block;
  width: 100%;
  height: auto;
}

.site-footer {
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
}

.reading-room-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.5rem 1rem;
  color: var(--ink);
  background: var(--surface);
  font-size: 1rem;
  line-height: 1.6;
  text-decoration-color: var(--rose-strong);
  text-underline-offset: 0.2em;
}

.reading-room-link:hover {
  background: var(--surface-strong);
  text-decoration-thickness: 2px;
}

.brand-link:focus-visible,
.reading-room-link:focus-visible {
  outline: 3px solid var(--rose-strong);
  outline-offset: 3px;
}

.reading-room-image {
  display: block;
  flex: 0 0 auto;
  width: 4rem;
  height: auto;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 2rem;
  line-height: 1.12;
}

h2 {
  font-size: 1rem;
  line-height: 1.2;
}

.workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.flow-panel {
  display: grid;
  gap: 1rem;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.step {
  display: inline-grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 50%;
  color: #ffffff;
  background: var(--rose-strong);
  font-weight: 800;
}

.field {
  display: grid;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.field.compact {
  margin-top: 0.25rem;
}

.eligibility-fields {
  display: grid;
  gap: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.filter-field {
  display: grid;
  gap: 0.5rem;
}

.filter-field > label {
  font-weight: 700;
}

.field-help {
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.5;
}

.eligibility-status {
  color: var(--ink);
  font-size: 0.875rem;
  line-height: 1.5;
}

.result-actions {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.result-actions button,
.redraw-prize {
  padding: 0.6rem 0.85rem;
}

#drawError,
#drawStatus:not(:empty) {
  margin-top: 0.75rem;
}

.result-group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.result-group-head h3 {
  margin: 0;
  overflow-wrap: anywhere;
}

.draw-history {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.6;
}

.draw-history summary {
  min-height: 2.75rem;
  padding: 0.65rem 0;
  cursor: pointer;
}

.draw-history summary:focus-visible {
  outline: 3px solid var(--rose-strong);
  outline-offset: 2px;
}

.draw-history ol {
  padding-left: 1.5rem;
}

.draw-history li {
  margin-bottom: 0.75rem;
  overflow-wrap: anywhere;
}

.history-prize-name {
  margin-top: 0.75rem;
  font-weight: 700;
}

.history-winner {
  display: grid;
  gap: 0.35rem;
  margin-top: 0.5rem;
}

.url-entry {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6rem;
}

.paste-action {
  min-width: 4.5rem;
}

.form-error {
  color: var(--rose-strong);
  font-size: 0.9rem;
  font-weight: 800;
}

.primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: #ffffff;
  background: linear-gradient(135deg, var(--rose-strong), #e27d9d);
  font-weight: 800;
}

.button-spinner {
  display: none;
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
  border: 2px solid rgba(255, 255, 255, 0.46);
  border-top-color: #ffffff;
  border-radius: 50%;
}

.primary-action.is-loading .button-spinner {
  display: inline-block;
  animation: spin 0.75s linear infinite;
}

.secondary-action {
  border: 1px solid var(--line);
  color: var(--rose-strong);
  background: rgba(255, 255, 255, 0.68);
  font-weight: 800;
}

.metrics {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
}

.metrics div {
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.8rem;
  background: rgba(255, 255, 255, 0.64);
}

.metrics span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.metrics strong {
  display: block;
  margin-top: 0.2rem;
  font-size: 1.45rem;
}

.warning-list {
  display: grid;
  gap: 0.4rem;
  border-left: 4px solid var(--sun);
  padding: 0.7rem 0.85rem;
  color: #6a4b1f;
  background: rgba(246, 195, 111, 0.22);
  font-size: 0.9rem;
}

.import-notice {
  display: grid;
  gap: 0.65rem;
  border-left: 4px solid var(--sun);
  border-radius: 0.25rem;
  padding: 0.85rem 1rem;
  color: #6a4b1f;
  background: rgba(246, 195, 111, 0.16);
  font-size: 0.875rem;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.import-notice h3 {
  margin: 0;
  font-size: 1rem;
}

.import-notice a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: inherit;
  text-underline-offset: 0.2em;
}

.import-notice a:focus-visible {
  outline: 3px solid var(--rose-strong);
  outline-offset: 3px;
}

.prize-list {
  display: grid;
  gap: 0.75rem;
}

.prize-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.65rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.8rem;
  background: rgba(255, 255, 255, 0.62);
}

.prize-row label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.remove-prize {
  border: 1px solid rgba(207, 78, 117, 0.22);
  color: var(--rose-strong);
  background: rgba(207, 78, 117, 0.08);
}

.check-row {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 2.75rem;
  color: var(--ink);
}

.check-row input {
  width: 1.15rem;
  min-height: 1.15rem;
  accent-color: var(--rose-strong);
}

.result-panel {
  min-height: 22rem;
}

.result-empty {
  display: grid;
  min-height: 14rem;
  place-items: center;
  color: var(--muted);
}

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

.result-group {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.result-group h3 {
  margin: 0 0 0.7rem;
  font-size: 1rem;
}

.winner {
  display: grid;
  gap: 0.35rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
}

.winner strong,
.history-winner strong {
  color: var(--rose-strong);
  overflow-wrap: anywhere;
}

.winner-comment-block {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  padding: 0.75rem;
  background: var(--surface-strong);
}

.winner-comment-label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.winner-comment {
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.hash {
  color: var(--muted);
  font-size: 0.78rem;
  overflow-wrap: anywhere;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .primary-action.is-loading .button-spinner {
    animation: none;
  }
}

@media (min-width: 48rem) {
  .shell {
    padding: 1.5rem;
  }

  .workspace {
    grid-template-columns: minmax(0, 1fr) minmax(22rem, 0.85fr);
    align-items: start;
  }

  .result-panel {
    grid-column: 2;
    grid-row: 1 / span 2;
    position: sticky;
    top: 1rem;
  }

  .metrics {
    grid-template-columns: repeat(3, 1fr);
  }

  .prize-row {
    grid-template-columns: minmax(0, 1fr) 6.5rem auto;
    align-items: end;
  }
}

@media (min-width: 64rem) {
  .shell {
    padding: 2rem;
  }

  h1 {
    font-size: 2.35rem;
  }

  .panel {
    padding: 1.25rem;
  }
}