:root {
  --bg: #f7f7f5;
  --paper: #fff;
  --ink: #1f211e;
  --muted: #73776e;
  --muted-strong: #555a52;
  --line: #e4e4df;
  --line-strong: #cfd2cc;
  --accent: #315f52;
  --accent-soft: #edf4f0;
  --danger: #a8463b;
  --warning: #8b641f;
  --shadow: 0 28px 78px rgba(27, 37, 31, .1);
  --radius: 8px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.55 var(--font);
}
button, input { font: inherit; }
a { color: inherit; }
button:focus-visible,
input:focus-visible,
a:focus-visible,
summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.sales-header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: 64px;
  padding: 0 clamp(18px, 4vw, 58px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(228, 228, 223, .9);
  background: rgba(247, 247, 245, .9);
  backdrop-filter: blur(16px);
}
.sales-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
}
.sales-brand img { width: 19px; height: 28px; }
.sales-header > a:last-child {
  color: var(--muted-strong);
  font-size: 12px;
  text-decoration: none;
}

.sandbox-note {
  display: none;
  padding: 10px 18px;
  border-bottom: 1px solid #decda7;
  background: #f7f0df;
  color: #6d531f;
  font-size: 12px;
  text-align: center;
}
.is-sandbox .sandbox-note { display: block; }

.sales-main {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(64px, 9vw, 124px) 0 100px;
}
.sales-kicker {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.sales-title {
  max-width: 900px;
  margin: 0;
  font-size: clamp(42px, 7vw, 92px);
  font-weight: 560;
  letter-spacing: -.05em;
  line-height: .98;
}
.sales-title em { color: var(--accent); font-style: normal; }
.sales-lead {
  max-width: 720px;
  margin: 26px 0 0;
  color: var(--muted-strong);
  font-size: clamp(17px, 2vw, 21px);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 54px;
}
.platform-card {
  display: grid;
  min-height: 380px;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}
.platform-card header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}
.platform-code { color: var(--accent); font: 700 12px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; }
.platform-card h2 { margin: 18px 0 8px; font-size: clamp(28px, 3vw, 40px); font-weight: 580; }
.platform-card > p { margin: 0; color: var(--muted-strong); }
.platform-card dl { margin: 34px 0; border-top: 1px solid var(--line); }
.platform-card dl div { display: grid; grid-template-columns: 1fr 1.45fr; gap: 18px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.platform-card dt { color: var(--muted); }
.platform-card dd { margin: 0; font-weight: 600; }
.requirement-note { display: block; margin-top: 3px; color: var(--muted); font-size: 11px; font-weight: 400; }
.package-preview { margin: 0 0 28px; padding: 16px 0 0; border-top: 1px solid var(--line); }
.package-preview > span { display: block; margin-bottom: 12px; color: var(--muted); font-size: 11px; font-weight: 650; text-transform: uppercase; letter-spacing: .08em; }
.package-root,
.package-item { position: relative; display: grid; grid-template-columns: minmax(90px, .6fr) 1.4fr; gap: 14px; padding: 7px 0 7px 20px; }
.package-root::before,
.package-item::before { content: ""; position: absolute; left: 3px; top: 15px; width: 7px; height: 7px; border: 1px solid var(--line-strong); }
.package-item::after { content: ""; position: absolute; left: 6px; top: 0; bottom: 0; width: 1px; background: var(--line); }
.package-root { padding-left: 0; }
.package-root::before { display: none; }
.package-root strong { color: var(--accent); }
.package-preview small { color: var(--muted); font-size: 11px; font-weight: 400; }
.download-action,
.primary-action {
  min-height: 48px;
  border: 0;
  border-radius: 7px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  background: var(--accent);
  color: #fff;
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s ease, background .2s ease;
}
.download-action:hover,
.primary-action:hover { transform: translateY(-1px); background: #274e43; }
.download-action[aria-disabled="true"],
.primary-action:disabled {
  background: #dfe2dd;
  color: #7c8179;
  cursor: not-allowed;
  transform: none;
}
.download-status { min-height: 42px; margin: 12px 0 0; color: var(--muted); font-size: 12px; }
.release-caveat { margin: 10px 0 16px; color: var(--muted-strong); font-size: 12px; line-height: 1.55; }
.release-proof { margin: 0 0 18px; padding: 12px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--muted-strong); font-size: 12px; }
.release-proof summary { color: var(--accent); cursor: pointer; font-weight: 650; }
.release-proof p { margin: 12px 0 4px; color: var(--muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.release-proof code { display: block; overflow-wrap: anywhere; color: var(--ink); font: 11px/1.55 ui-monospace, SFMono-Regular, Consolas, monospace; }
.release-proof a { display: inline-block; margin-top: 8px; color: var(--accent); text-underline-offset: 3px; }
.release-proof a + a { margin-left: 12px; }
.preview-link { color: var(--accent); font-size: 12px; text-underline-offset: 4px; }

.steps-strip {
  margin-top: 16px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.steps-strip div { display: grid; grid-template-columns: 28px 1fr; gap: 12px; }
.steps-strip b { color: var(--accent); font: 700 12px ui-monospace, SFMono-Regular, Consolas, monospace; }
.steps-strip strong { display: block; margin-bottom: 4px; }
.steps-strip p { margin: 0; color: var(--muted); font-size: 13px; }

.sales-footer {
  padding: 30px clamp(18px, 4vw, 58px);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px 30px;
  color: var(--muted-strong);
  font-size: 12px;
}
.sales-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.sales-footer a { text-underline-offset: 4px; }

.purchase-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(310px, .72fr);
  gap: 18px;
  margin-top: 48px;
  align-items: start;
}
.purchase-panel,
.order-summary,
.recovery-panel,
.status-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}
.purchase-panel { padding: clamp(24px, 4vw, 42px); }
.order-summary { position: sticky; top: 82px; padding: 28px; }
.section-label { color: var(--accent); font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.purchase-panel h2,
.order-summary h2,
.status-panel h2 { margin: 10px 0 8px; font-size: 26px; font-weight: 600; }
.purchase-panel > p,
.status-panel > p { color: var(--muted-strong); }

.platform-choice {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 24px 0;
}
.platform-choice button {
  min-height: 58px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg);
  color: var(--muted-strong);
  text-align: left;
  cursor: pointer;
}
.platform-choice button strong { display: block; color: var(--ink); }
.platform-choice button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); }

.field { display: grid; gap: 7px; margin-top: 18px; }
.field label { font-size: 12px; font-weight: 650; }
.field input,
.field textarea {
  width: 100%;
  min-height: 48px;
  padding: 13px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  outline: none;
  font: inherit;
  resize: vertical;
}
.field input { height: 48px; padding-block: 0; }
.field input:focus,
.field textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(49, 95, 82, .1); }
.field small { color: var(--muted); }
.checks { display: grid; gap: 12px; margin: 24px 0; }
.check-row { display: grid; grid-template-columns: 18px 1fr; gap: 10px; align-items: start; color: var(--muted-strong); font-size: 13px; }
.check-row input { width: 16px; height: 16px; margin: 3px 0 0; accent-color: var(--accent); }
.check-row a { color: var(--accent); text-underline-offset: 3px; }
.form-error { min-height: 22px; margin: 8px 0 0; color: var(--danger); font-size: 12px; }
.purchase-panel .primary-action { width: 100%; }
.bank-note { margin: 12px 0 0; color: var(--muted); font-size: 11px; text-align: center; }

.order-row { display: flex; justify-content: space-between; gap: 18px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.order-row span { color: var(--muted); }
.order-row a { color: var(--accent); font-size: 12px; text-underline-offset: 3px; }
.order-price { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; padding-top: 24px; }
.order-price span { color: var(--muted); }
.order-price strong { font-size: 31px; line-height: 1; }
.license-rule { margin: 24px 0 0; padding: 16px; border-left: 2px solid var(--accent); background: var(--accent-soft); color: var(--muted-strong); font-size: 13px; }
.license-rule strong { color: var(--ink); }
.order-assurances { margin-top: 20px; padding-top: 10px; border-top: 1px solid var(--line); }
.order-assurances p { display: flex; justify-content: space-between; gap: 14px; margin: 10px 0 0; font-size: 12px; }
.order-assurances span { color: var(--muted); }
.order-assurances strong { text-align: right; font-weight: 600; }
.summary-links { display: flex; flex-wrap: wrap; gap: 10px 16px; margin-top: 20px; font-size: 12px; }
.summary-links a { color: var(--accent); text-underline-offset: 3px; }

.text-action {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.recovery-trigger { display: block; margin: 26px auto 0; }
.recovery-panel { display: none; margin-top: 18px; padding: 24px; }
.recovery-panel.is-open { display: block; }
.recovery-panel h3 { margin: 0 0 8px; }
.recovery-panel p { margin: 0; color: var(--muted-strong); }
.recovery-actions { display: grid; grid-template-columns: 1fr auto; gap: 8px; margin-top: 16px; }
.recovery-actions input { min-width: 0; height: 44px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: 7px; }
.secondary-action {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.status-panel { display: none; grid-column: 1 / -1; padding: clamp(26px, 5vw, 52px); }
.status-panel { scroll-margin-top: 82px; }
.status-panel.is-visible { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .7fr); gap: 44px; }
.status-copy { min-height: 250px; }
.status-copy h2 { max-width: 650px; font-size: clamp(34px, 5vw, 62px); letter-spacing: -.04em; line-height: 1; }
.status-copy p { max-width: 660px; font-size: 17px; }
.status-order-amount { padding: 12px 14px; border: 2px solid var(--ink); border-radius: 12px; font-weight: 760; }
.status-order-amount.is-warning { border-color: var(--warning); color: var(--warning); }
.status-detail { margin-top: 22px; color: var(--muted); font-size: 12px; }
.status-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.status-actions .primary-action { width: auto; }
.status-timeline { border-left: 1px solid var(--line); padding-left: 28px; }
.status-timeline ol { margin: 16px 0 0; padding: 0; list-style: none; }
.status-timeline li { position: relative; padding: 0 0 22px 18px; color: var(--muted); }
.status-timeline li::before { content: ""; position: absolute; left: -33px; top: 7px; width: 9px; height: 1px; background: var(--line-strong); }
.status-timeline li.is-done { color: var(--muted-strong); }
.status-timeline li.is-current { color: var(--ink); font-weight: 650; }
.status-timeline li.is-current::before { width: 17px; background: var(--accent); }
.status-timeline small { display: block; font-weight: 400; }

.sandbox-controls { display: none; grid-column: 1 / -1; padding: 16px 0 0; border-top: 1px solid var(--line); }
.is-sandbox .sandbox-controls { display: block; }
.sandbox-controls p { margin: 0 0 10px; color: var(--warning); font-size: 11px; }
.sandbox-controls div { display: flex; flex-wrap: wrap; gap: 7px; }
.sandbox-controls button { padding: 7px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--muted-strong); cursor: pointer; font-size: 11px; }

.faq-section { margin-top: 90px; }
.faq-section h2 { margin: 0 0 24px; font-size: clamp(32px, 5vw, 58px); font-weight: 560; letter-spacing: -.04em; }
.faq-section details { border-top: 1px solid var(--line); }
.faq-section details:last-child { border-bottom: 1px solid var(--line); }
.faq-section summary { padding: 20px 2px; display: flex; justify-content: space-between; gap: 20px; cursor: pointer; font-weight: 600; list-style: none; }
.faq-section summary::-webkit-details-marker { display: none; }
.faq-section summary span { color: var(--accent); font-weight: 400; }
.faq-section details p { max-width: 820px; margin: -4px 0 22px; color: var(--muted-strong); }

@media (max-width: 820px) {
  .sales-main { width: min(100% - 28px, 680px); padding-top: 58px; }
  .platform-grid, .purchase-layout { grid-template-columns: 1fr; }
  .platform-card { min-height: 0; }
  .steps-strip { grid-template-columns: 1fr; }
  .order-summary { position: static; }
  .status-panel.is-visible { grid-template-columns: 1fr; gap: 26px; }
  .status-timeline { border-left: 0; border-top: 1px solid var(--line); padding: 24px 0 0; }
  .status-timeline li { padding-left: 22px; }
  .status-timeline li::before { left: 0; }
}

@media (max-width: 520px) {
  .sales-header { height: 58px; padding: 0 15px; }
  .sales-header > a:last-child { font-size: 11px; }
  .sales-title { font-size: 42px; }
  .platform-card, .purchase-panel, .order-summary { padding: 22px; }
  .platform-card dl div { grid-template-columns: 1fr; gap: 3px; }
  .package-root, .package-item { grid-template-columns: 1fr; gap: 1px; }
  .platform-choice { grid-template-columns: 1fr; }
  .recovery-actions { grid-template-columns: 1fr; }
  .sales-footer { padding: 24px 15px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}