:root {
  --color-ink: #1c1c1c;
  --color-muted: #5f5f5d;
  --color-bg: #f7f4ed;
  --color-panel: #f7f4ed;
  --color-line: #eceae4;
  --color-interactive: rgba(28, 28, 28, 0.4);
  --color-subtle: rgba(28, 28, 28, 0.04);
  --focus-shadow: rgba(0, 0, 0, 0.1) 0 4px 12px;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: #fbfaf6;
  line-height: 1.5;
}

img,
svg {
  max-width: 100%;
}

a {
  color: inherit;
}

.site-header {
  width: min(430px, 100%);
  margin: 0 auto;
  background: #007a68;
  border-bottom: 0;
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header__inner {
  width: min(430px, 100%);
  min-height: 42px;
  padding: 0 18px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand img {
  display: block;
  width: 120px;
  height: auto;
}

.hero {
  width: min(430px, 100%);
  margin: 0 auto;
  min-height: auto;
  display: grid;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}

.hero__visual {
  display: block;
  width: 100%;
  height: auto;
}

.hero__inner {
  width: min(430px, 100%);
  margin: 0 auto;
  padding: 32px 18px 40px;
}

.hero__label {
  width: fit-content;
  margin: 0 0 16px;
  padding: 6px 12px;
  border: 1px solid var(--color-line);
  color: var(--color-muted);
  background: rgba(28, 28, 28, 0.03);
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 400;
}

.hero h1 {
  max-width: 100%;
  margin: 0;
  color: var(--color-ink);
  font-size: 2.15rem;
  line-height: 1.12;
  letter-spacing: -0.6px;
  font-weight: 600;
}

.hero__lead {
  max-width: 100%;
  margin: 24px 0 0;
  color: rgba(28, 28, 28, 0.82);
  font-size: clamp(1rem, 2vw, 1.18rem);
  font-weight: 400;
}

.hero__note {
  max-width: 100%;
  margin: 14px 0 0;
  color: var(--color-muted);
}

.content {
  width: min(430px, 100%);
  padding: 0 18px;
  margin: 0 auto;
}

.campaign,
.stores {
  width: min(430px, 100%);
  margin: 0 auto;
  padding: 42px 0;
}

.campaign {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
}

h2 {
  margin: 0 0 22px;
  font-size: 1.75rem;
  line-height: 1.15;
  letter-spacing: -0.3px;
  font-weight: 600;
}

.info-list {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--color-line);
}

.info-list div {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line);
}

.info-list div:nth-child(odd) {
  padding-right: 0;
}

.info-list dt {
  color: var(--color-muted);
  font-weight: 400;
}

.info-list dd {
  margin: 0;
}

.notice {
  margin: 24px 0 0;
  color: var(--color-muted);
}

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.section-heading h2 {
  margin-bottom: 6px;
}

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

.store-count {
  flex: 0 0 auto;
  color: var(--color-ink);
  font-weight: 600;
}

.filter {
  display: grid;
  grid-template-columns: 1fr;
  align-items: stretch;
  gap: 16px;
  margin-bottom: 28px;
  padding: 16px;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-radius: 12px;
}

.filter__field {
  display: grid;
  gap: 8px;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.filter label,
.filter legend {
  color: var(--color-muted);
  font-size: 0.88rem;
  font-weight: 400;
}

.filter legend {
  padding: 0;
}

.region-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.region-option {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 0 12px;
  color: var(--color-ink);
  background: rgba(28, 28, 28, 0.03);
  border: 1px solid var(--color-line);
  border-radius: 999px;
  cursor: pointer;
}

.region-option:has(input:checked) {
  border-color: var(--color-interactive);
  background: var(--color-subtle);
}

.filter select,
.filter input {
  width: 100%;
  min-height: 44px;
  padding: 0 42px 0 14px;
  color: var(--color-ink);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: 8px;
  font: inherit;
}

.filter select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--color-muted) 50%),
    linear-gradient(135deg, var(--color-muted) 50%, transparent 50%);
  background-position:
    calc(100% - 17px) 50%,
    calc(100% - 12px) 50%;
  background-size:
    5px 5px,
    5px 5px;
  background-repeat: no-repeat;
}

.filter select:hover,
.filter input:hover {
  border-color: var(--color-interactive);
}

.filter select:focus,
.filter input:focus {
  outline: 0;
  border-color: var(--color-interactive);
  box-shadow: var(--focus-shadow);
}

.filter input {
  width: 100%;
  padding-right: 14px;
}

.filter input::placeholder {
  color: #9a8e94;
}

.filter .region-option input {
  width: auto;
  min-height: auto;
  margin: 0;
  padding: 0;
  border: 0;
  box-shadow: none;
  accent-color: var(--color-ink);
}

.store-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.store-card {
  min-height: auto;
  padding: 16px;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-radius: 12px;
}

.store-card__prefecture {
  margin: 0 0 8px;
  color: var(--color-muted);
  font-size: 0.88rem;
  font-weight: 400;
}

.store-card__name {
  margin: 0;
  font-size: 1.06rem;
  font-weight: 400;
  line-height: 1.4;
}

.store-card__address,
.store-card__note {
  margin: 10px 0 0;
  color: var(--color-muted);
  font-size: 0.94rem;
}

.store-card__link {
  display: inline-block;
  margin-top: 14px;
  color: var(--color-ink);
  font-weight: 400;
  text-underline-offset: 3px;
}

.empty-message {
  margin: 0;
  padding: 28px;
  text-align: center;
  background: var(--color-panel);
  border: 1px solid var(--color-line);
  border-radius: 8px;
}

.site-footer {
  width: min(430px, 100%);
  margin: 0 auto;
  padding: 32px 16px;
  color: var(--color-muted);
  background: var(--color-bg);
  border-top: 1px solid var(--color-line);
  text-align: center;
}

@media (max-width: 800px) {
  .store-count {
    align-self: flex-start;
  }
}

@media (max-width: 520px) {
  .site-header__inner {
    min-height: 42px;
  }

  .hero__inner {
    padding: 28px 18px 36px;
  }

  .campaign,
  .stores {
    padding: 40px 0;
  }

  .info-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}