:root {
  color-scheme: light;
  --ink: #1d2433;
  --muted: #647084;
  --line: #d8dee8;
  --panel: #ffffff;
  --page: #f4f6f8;
  --accent: #0f766e;
  --accent-2: #b45309;
  --soft: #e6f3f1;
  --soft-2: #fff4df;
  --danger: #b42318;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(15, 118, 110, 0.08), rgba(15, 118, 110, 0) 280px),
    var(--page);
}

button,
input,
textarea {
  font: inherit;
}

.shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

.control-panel,
.result-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(29, 36, 51, 0.08);
}

.control-panel {
  display: grid;
  grid-template-columns: minmax(240px, 0.6fr) minmax(0, 1.4fr);
  gap: 16px 20px;
  align-items: center;
  padding: 20px;
}

.brand-lockup {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.brand-copy {
  display: grid;
  gap: 14px;
}

.control-form {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.analysis-history {
  grid-column: 1 / -1;
  display: grid;
  gap: 10px;
  padding-top: 2px;
}

.history-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.history-header h2 {
  font-size: 15px;
}

.history-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.history-empty {
  grid-column: 1 / -1;
  min-height: 46px;
  display: grid;
  place-items: center;
  margin: 0;
  border: 1px dashed var(--line);
  border-radius: 6px;
  color: var(--muted);
  background: #f8fafc;
  font-size: 13px;
}

.history-item {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.history-image {
  min-height: 58px;
  width: 58px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  overflow: hidden;
}

.history-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.history-image-placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: var(--muted);
  font-size: 12px;
}

.history-copy {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.history-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.history-asin {
  min-height: auto;
  padding: 0;
  border-radius: 0;
  color: var(--accent);
  background: transparent;
  font-weight: 800;
}

.history-copy p {
  color: var(--ink);
  font-size: 12px;
  line-height: 1.35;
}

.history-pager {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
}

.history-pager:empty {
  display: none;
}

.history-pager button {
  min-height: 32px;
  padding: 0 12px;
  font-size: 13px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: #fff;
  background: var(--accent);
  font-weight: 800;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 20px;
  line-height: 1.25;
}

.brand-lockup p,
.mini-help,
.status,
.muted {
  color: var(--muted);
}

.strategy-reference {
  max-width: 620px;
  font-size: 13px;
  line-height: 1.45;
}

.strategy-reference a {
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.strategy-reference a:hover {
  text-decoration: underline;
}

.field {
  display: grid;
  gap: 8px;
  font-weight: 700;
}

.field input {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
}

.field textarea {
  width: 100%;
  min-height: 74px;
  resize: vertical;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: #fff;
  line-height: 1.45;
}

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

.csv-field[hidden] {
  display: none;
}

.csv-toggle-row {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  justify-content: space-between;
  align-self: start;
}

.switch-row label {
  display: flex;
  gap: 8px;
  align-items: center;
  min-height: 46px;
  color: var(--ink);
  font-size: 14px;
  white-space: nowrap;
}

button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: 6px;
  color: #fff;
  background: var(--accent);
  cursor: pointer;
  font-weight: 800;
}

button:disabled {
  cursor: progress;
  opacity: 0.62;
}

.button-icon {
  font-size: 18px;
}

.mini-help {
  grid-column: 1 / -1;
  display: grid;
  gap: 6px;
  padding: 12px;
  border: 1px solid #c9e4df;
  border-radius: 6px;
  background: var(--soft);
  font-size: 13px;
  line-height: 1.45;
}

.result-panel {
  min-height: calc(100vh - 48px);
  padding: 18px;
}

.status {
  min-height: 22px;
  margin-bottom: 14px;
  font-size: 14px;
}

.status.error {
  color: var(--danger);
}

.result-grid {
  display: grid;
  gap: 16px;
}

.overview {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
}

.product-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.product-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.result-url {
  display: inline-block;
  margin-top: 6px;
  overflow-wrap: anywhere;
}

.result-url:hover,
.history-asin:hover {
  color: var(--accent);
  text-decoration: underline;
}

.placeholder-image {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 1;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #f8fafc;
  text-align: center;
  padding: 14px;
}

.section {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.section h2 {
  margin-bottom: 12px;
  font-size: 18px;
}

.section h3 {
  margin-bottom: 8px;
  font-size: 15px;
}

.summary-list,
.plain-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
}

.metric-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  border-radius: 999px;
  background: #eef2f7;
  color: #334155;
  font-size: 13px;
  font-weight: 700;
}

.pill.strong {
  background: var(--soft-2);
  color: var(--accent-2);
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.capability-list {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

.capability-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) auto minmax(0, 1fr) minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.capability-row p {
  margin-top: 4px;
  line-height: 1.4;
}

.card {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfe;
}

.card-title {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: start;
}

.score {
  color: var(--accent);
  font-weight: 800;
}

.keyword-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.keyword-table th,
.keyword-table td {
  padding: 9px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.keyword-table th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.template-block {
  display: grid;
  gap: 10px;
}

.copy-box {
  padding: 12px;
  border-radius: 6px;
  background: #f8fafc;
  border: 1px solid var(--line);
  line-height: 1.55;
}

.campaigns {
  display: grid;
  gap: 10px;
}

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

.competitor-card {
  grid-template-columns: 74px minmax(0, 1fr);
  align-items: center;
}

.competitor-image {
  display: grid;
  place-items: center;
  width: 74px;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  overflow: hidden;
}

.competitor-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.competitor-asin {
  display: inline-block;
  margin-bottom: 4px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.competitor-asin:hover {
  text-decoration: underline;
}

@media (max-width: 920px) {
  .shell {
    padding: 14px;
  }

  .control-panel {
    grid-template-columns: 1fr;
  }

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

  .history-list {
    grid-template-columns: 1fr;
  }

  .overview {
    grid-template-columns: 1fr;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .capability-row {
    grid-template-columns: 1fr;
  }

  .competitor-card {
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .competitor-image {
    width: 64px;
  }
}