:root {
  color-scheme: dark;
  --bg: #0a0a0c;
  --surface: #101317;
  --line: rgba(0, 224, 198, .18);
  --accent: #00e0c6;
  --text: #f5fbfb;
  --muted: rgba(255, 255, 255, .66);
  --danger: #ff6b6b;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--text); }
a { color: inherit; }
.page-shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; padding: 72px 0; }
.page-header { max-width: 760px; padding-bottom: 44px; border-bottom: 1px solid var(--line); }
.eyebrow { margin: 0 0 16px; color: var(--accent); font-size: .74rem; letter-spacing: .22em; }
h1 { margin: 0; font-size: clamp(1.8rem, 4vw, 3.4rem); line-height: 1.28; }
.lead { max-width: 680px; margin: 22px 0 0; color: var(--muted); line-height: 1.9; }
.product-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; padding-top: 40px; }
.product-card { display: grid; grid-template-columns: 190px 1fr; overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.package-frame { display: grid; place-items: center; min-height: 220px; padding: 24px; background: linear-gradient(145deg, rgba(0,224,198,.08), transparent); }
.package-image { width: 100%; max-height: 190px; object-fit: contain; }
.product-body { padding: 26px 24px; }
.series { margin: 0 0 10px; color: var(--accent); font-size: .75rem; letter-spacing: .12em; }
.product-name { margin: 0; font-size: 1.12rem; letter-spacing: .04em; }
.product-name-ja { margin: 8px 0 0; color: var(--muted); font-size: .9rem; }
.flavor-description { min-height: 4.2em; margin: 20px 0; color: var(--muted); font-size: .9rem; line-height: 1.75; }
.price { margin: 0 0 20px; font-size: 1.25rem; font-weight: 700; }
.price span { color: var(--muted); font-size: .78rem; font-weight: 400; }
.detail-link { display: inline-block; margin: 0 16px 0 0; color: var(--accent); font-size: .86rem; text-decoration: underline; text-underline-offset: 3px; }
.purchase-link, .submit-button, .secondary-button { display: inline-block; border: 1px solid var(--accent); padding: 12px 20px; background: var(--accent); color: #061312; font-weight: 700; text-decoration: none; cursor: pointer; }
.purchase-link:hover, .submit-button:hover { filter: brightness(1.08); }
.form-card { width: min(760px, 100%); margin: 40px auto 0; padding: 30px; border: 1px solid var(--line); background: var(--surface); }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: grid; gap: 8px; margin-bottom: 20px; }
.field label { color: rgba(0, 224, 198, .75); font-size: .75rem; letter-spacing: .15em; }
.field input, .field select, .field textarea { width: 100%; border: 1px solid rgba(0,224,198,.28); padding: 12px 14px; border-radius: 2px; background: rgba(255,255,255,.04); color: var(--text); font: inherit; }
.field select option { background: var(--bg); color: var(--text); }
.field textarea { min-height: 144px; resize: vertical; }
.form-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.required-note { margin: 0; color: rgba(255,255,255,.45); font-size: .8rem; }
.error { min-height: 1.5em; margin: 0 0 16px; color: var(--danger); }
.success-panel { padding: 44px 22px; border: 1px solid var(--line); text-align: center; }
.secondary-button { margin-top: 22px; background: transparent; color: var(--accent); }
.legal-content { width: min(820px, 100%); margin: 40px auto 0; color: var(--muted); line-height: 1.9; }
.legal-content h2 { margin-top: 42px; color: var(--accent); font-size: 1rem; letter-spacing: .08em; }
.legal-content h3 { color: var(--text); font-size: .95rem; }
.legal-content a { color: var(--accent); }
.legal-table { overflow: hidden; border: 1px solid var(--line); }
.legal-row { display: grid; grid-template-columns: 190px 1fr; border-bottom: 1px solid rgba(255,255,255,.07); }
.legal-row:last-child { border-bottom: 0; }
.legal-label { padding: 16px; background: rgba(0,224,198,.05); color: var(--accent); font-size: .85rem; }
.legal-value { padding: 16px; }
@media (max-width: 800px) {
  .page-shell { width: min(100% - 28px, 1120px); padding: 48px 0; }
  .product-grid, .field-grid { grid-template-columns: 1fr; }
  .product-card { grid-template-columns: 1fr; }
  .package-frame { min-height: 210px; }
  .form-card { padding: 22px; }
  .form-footer { align-items: flex-start; flex-direction: column; }
  .legal-row { grid-template-columns: 1fr; }
  .legal-label { border-bottom: 1px solid rgba(255,255,255,.07); }
}

.site-nav {display:flex;flex-wrap:wrap;gap:20px;padding:20px 0;margin-bottom:28px;border-bottom:1px solid var(--line)}
.site-nav a {color:var(--accent)}
.legal-content button {color:var(--accent);background:transparent;border:1px solid var(--line);padding:12px;margin-top:30px;cursor:pointer}
.legal-content section {margin-bottom:32px}
.legal-content li {margin-bottom:8px}
.detail-link {display:block;color:var(--accent);margin:16px 0}
[hidden] {display:none!important}