:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #5f697a;
  --line: #d9dee8;
  --field: #f7f9fc;
  --blue: #123f73;
  --cyan: #0f8fb8;
  --gold: #b9892f;
  --danger: #b42318;
  --ok: #0f6b45;
  --radius: 8px;
  font-family: Inter, "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #eef2f7;
  color: var(--ink);
  letter-spacing: 0;
}

main {
  width: min(940px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 44px;
}

.masthead {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 20px 0 24px;
}

.mark {
  display: flex;
  align-items: center;
  width: 176px;
  height: 56px;
  flex: 0 0 176px;
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(18, 63, 115, 0.22);
  overflow: hidden;
  background: linear-gradient(145deg, var(--blue), #081a33);
  padding: 11px 14px;
}

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

h1 {
  margin: 0;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.2;
}

.lead {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 15px;
}

.panel,
form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 34px rgba(23, 32, 51, 0.08);
  overflow: hidden;
}

section,
.choice-area {
  padding: 24px;
  border-top: 1px solid var(--line);
}

section:first-child,
.choice-area:first-child {
  border-top: 0;
}

h2 {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.35;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.choice-card {
  display: grid;
  gap: 10px;
  min-height: 160px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfe;
  color: inherit;
  text-decoration: none;
}

.choice-card strong {
  font-size: 19px;
}

.choice-card span {
  color: var(--muted);
  line-height: 1.6;
  font-size: 14px;
}

.choice-card b {
  align-self: end;
  color: var(--blue);
  font-size: 14px;
}

.field {
  display: grid;
  gap: 7px;
}

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

label,
legend {
  font-weight: 700;
  font-size: 13px;
  line-height: 1.35;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid #c8cfdb;
  border-radius: 6px;
  background: var(--field);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  padding: 10px 12px;
  outline: none;
}

textarea {
  min-height: 104px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(15, 143, 184, 0.14);
  background: #fff;
}

.hint {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.checks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.check {
  display: flex;
  gap: 9px;
  align-items: center;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid #c8cfdb;
  border-radius: 6px;
  background: var(--field);
  font-weight: 600;
  cursor: pointer;
}

.check input {
  width: 18px;
  min-height: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--blue);
}

.store-list {
  display: grid;
  gap: 12px;
}

.store-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfe;
  padding: 16px;
}

.store-card h3 {
  margin: 0 0 12px;
  font-size: 15px;
}

.store-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(120px, 0.8fr) minmax(120px, 0.8fr);
  gap: 12px;
}

.actions {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  border-top: 1px solid var(--line);
  background: #fbfcfe;
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border: 0;
  border-radius: 6px;
  background: var(--blue);
  color: #fff;
  font: inherit;
  font-weight: 700;
  padding: 10px 18px;
  cursor: pointer;
  text-decoration: none;
}

button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.status {
  font-weight: 700;
  font-size: 14px;
}

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

.status.ok {
  color: var(--ok);
}

.required::after {
  content: " *";
  color: var(--danger);
}

@media (max-width: 720px) {
  main {
    width: min(100% - 20px, 940px);
    padding-top: 14px;
  }

  .masthead {
    align-items: flex-start;
    display: grid;
  }

  section,
  .choice-area,
  .actions {
    padding: 18px;
  }

  .grid,
  .choice-grid,
  .checks,
  .store-grid {
    grid-template-columns: 1fr;
  }

  .actions {
    display: grid;
  }
}