:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #18212f;
  --muted: #64748b;
  --line: #d9e2ec;
  --brand: #0f766e;
  --brand-strong: #115e59;
  --brand-soft: #dff7f4;
  --danger: #b42318;
  --shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, #ecfeff 0, #f4f7fb 32%, #f4f7fb 100%);
  color: var(--text);
}

.page {
  width: min(100%, 680px);
  margin: 0 auto;
  padding: 20px 16px calc(28px + env(safe-area-inset-bottom));
}

.card {
  background: var(--card);
  border: 1px solid rgba(217, 226, 236, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero {
  padding: 24px 18px;
}

.hero h1 {
  margin: 8px 0 12px;
  font-size: 1.8rem;
  line-height: 1.15;
}

.eyebrow {
  margin: 0;
  color: var(--brand);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.subtext,
.hint,
.shop,
.desc,
.meta-label,
.meta-list dt,
.meta-list dd,
.status p {
  margin: 0;
  color: var(--muted);
}

.form-card,
.status,
.result {
  margin-top: 14px;
  padding: 16px;
}

.form {
  display: grid;
  gap: 12px;
}

.label {
  font-size: 0.95rem;
  font-weight: 700;
}

.textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  font: inherit;
  resize: vertical;
  min-height: 112px;
  color: var(--text);
  background: #fcfeff;
}

.textarea:focus {
  outline: 2px solid rgba(15, 118, 110, 0.18);
  border-color: var(--brand);
}

.button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  min-height: 48px;
  padding: 0 18px;
  background: var(--brand);
  color: #fff;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

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

.button-secondary {
  background: #e2e8f0;
  color: var(--text);
}

.status {
  background: var(--brand-soft);
}

.status.error {
  background: #fef3f2;
}

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

.result-header h2 {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.4;
}

.price-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}

.price-item {
  padding: 14px;
  border-radius: 16px;
  background: #f8fafc;
}

.price-item.muted {
  background: #f1f5f9;
}

.price {
  display: block;
  margin-top: 6px;
  color: var(--brand-strong);
  font-size: 1.5rem;
  line-height: 1.1;
}

.meta-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0 0;
}

.meta-list div {
  padding: 12px;
  border-radius: 14px;
  background: #f8fafc;
}

.meta-list dt {
  font-size: 0.82rem;
}

.meta-list dd {
  margin-top: 6px;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text);
}

.desc {
  margin-top: 16px;
  line-height: 1.6;
}

.actions {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.hidden {
  display: none;
}

@media (min-width: 640px) {
  .page {
    padding-top: 36px;
  }

  .hero,
  .form-card,
  .status,
  .result {
    padding: 22px;
  }

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