:root {
  --bg0: #f3efe6;
  --bg1: #e7f0ea;
  --ink: #14201a;
  --muted: #5b6b62;
  --line: #cfd8d2;
  --accent: #0f6b4c;
  --accent-2: #c45c26;
  --card: rgba(255, 252, 246, 0.86);
  --shadow: 0 18px 50px rgba(20, 32, 26, 0.08);
  --radius: 18px;
  --font-display: "Manrope", "Segoe UI", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #d9ebe1 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #f0dcc8 0%, transparent 50%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
.top {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1100px; margin: 0 auto; padding: 22px 20px;
}
.logo {
  font-family: var(--font-display);
  font-weight: 800; font-size: 1.35rem; letter-spacing: -0.03em; color: var(--ink);
}
.logo span { color: var(--accent); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  border-radius: 999px; padding: 10px 18px; font-weight: 600; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-primary {
  background: var(--accent); color: #fff; border-color: transparent;
}
.btn-accent { background: var(--accent-2); color: #fff; border-color: transparent; }

.hero {
  max-width: 1100px; margin: 0 auto; padding: 28px 20px 64px;
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 36px; align-items: center;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.05; letter-spacing: -0.04em; margin: 0 0 16px;
}
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 34rem; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.hero-note { margin-top: 14px; color: var(--muted); font-size: .95rem; }

.preview {
  background: var(--card); border: 1px solid var(--line); border-radius: 28px;
  box-shadow: var(--shadow); padding: 22px; min-height: 340px;
  transform: rotate(1.2deg);
  animation: float 5.5s ease-in-out infinite;
}
@keyframes float {
  0%,100% { transform: rotate(1.2deg) translateY(0); }
  50% { transform: rotate(0.4deg) translateY(-8px); }
}
.preview .doc-title { font-weight: 800; font-size: 1.15rem; margin-bottom: 18px; }
.preview .row { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--line); font-size: .92rem; }
.preview .total { margin-top: 18px; font-weight: 800; font-size: 1.2rem; }

.section { max-width: 1100px; margin: 0 auto; padding: 10px 20px 70px; }
.section h2 { font-size: 1.8rem; letter-spacing: -0.03em; margin: 0 0 10px; }
.section .sub { color: var(--muted); margin-bottom: 26px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 18px 20px;
}
.card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); line-height: 1.45; }

.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.price {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column; gap: 10px;
}
.price.featured { border-color: var(--accent); box-shadow: var(--shadow); }
.price .amount { font-size: 2rem; font-weight: 800; letter-spacing: -0.03em; }
.price .amount small { font-size: 1rem; font-weight: 600; color: var(--muted); }

.footer {
  border-top: 1px solid var(--line); padding: 28px 20px; color: var(--muted);
  text-align: center; font-size: .9rem;
}

/* App */
.app-shell { max-width: 1100px; margin: 0 auto; padding: 16px 20px 60px; }
.app-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 18px; }
.panel {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow);
}
label { display: block; font-size: .82rem; color: var(--muted); margin: 10px 0 4px; }
input, select, textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 12px;
  padding: 10px 12px; font: inherit; background: #fff; color: var(--ink);
}
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.row3 { display: grid; grid-template-columns: 2fr 0.7fr 0.7fr 1fr auto; gap: 8px; align-items: end; }
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.pill {
  display: inline-flex; gap: 6px; align-items: center; background: #eef5f1;
  border-radius: 999px; padding: 6px 12px; font-size: .85rem; color: var(--muted);
}
.modal-bg {
  position: fixed; inset: 0; background: rgba(20,32,26,.45);
  display: none; align-items: center; justify-content: center; padding: 16px; z-index: 50;
}
.modal-bg.open { display: flex; }
.modal {
  width: min(480px, 100%); background: #fff; border-radius: 20px; padding: 22px;
  box-shadow: var(--shadow);
}
.modal h3 { margin-top: 0; }
.sku-list { display: grid; gap: 10px; margin: 14px 0; }
.sku {
  border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px;
  display: flex; justify-content: space-between; align-items: center; cursor: pointer;
  gap: 12px;
}
.sku:hover { border-color: var(--accent); }
.sku-featured {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(15,107,76,.06), rgba(255,252,246,.9));
  box-shadow: var(--shadow);
}
.sku-badge {
  display: inline-block; margin-left: 6px; padding: 2px 8px;
  border-radius: 999px; background: var(--accent); color: #fff;
  font-size: .7rem; font-weight: 700; text-transform: lowercase; vertical-align: middle;
}
.sku-price { font-weight: 800; white-space: nowrap; }
.pay-steps {
  text-align: left; margin: 0 0 14px; padding-left: 1.2rem;
  color: var(--ink); font-size: .92rem; line-height: 1.45;
}
.pay-steps li { margin: 6px 0; }
.usdt-help {
  text-align: left; margin-top: 14px; padding: 12px 14px;
  border: 1px dashed var(--line); border-radius: 12px; background: #faf8f3;
}
.usdt-help summary { cursor: pointer; font-weight: 700; color: var(--accent); }
.usdt-help ol { margin: 10px 0 0; padding-left: 1.2rem; font-size: .9rem; line-height: 1.45; }
.err { color: #a12622; font-size: .9rem; }

.seo .wrap { max-width: 720px; margin: 40px auto; padding: 0 20px; }
.seo h1 { letter-spacing: -0.03em; }
.prose .lead { color: var(--muted); font-size: 1.1rem; line-height: 1.5; }
.prose h2 { margin-top: 1.6em; letter-spacing: -0.02em; }
.prose details { margin: 10px 0; padding: 12px 14px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.prose summary { cursor: pointer; font-weight: 600; }
.muted { color: var(--muted); font-size: .85rem; }
button.linkish {
  background: none; border: 0; padding: 0; color: var(--accent);
  font: inherit; text-decoration: underline; cursor: pointer;
}
.doc-history { display: grid; gap: 8px; margin-bottom: 18px; }
.hist-row {
  display: flex; justify-content: space-between; gap: 10px; align-items: center;
  padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; background: #fff;
}
.usdt-box { text-align: center; margin: 12px 0; }
.usdt-box .addr { word-break: break-all; font-size: .85rem; }
.usdt-actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 12px 0; }
.hist-actions { display: flex; gap: 6px; flex-shrink: 0; flex-wrap: wrap; }

.share-result {
  margin-top: 14px; padding: 14px 16px;
  background: linear-gradient(135deg, rgba(15,107,76,.1), rgba(255,252,246,.95));
  border: 1px solid var(--line); border-radius: var(--radius);
  display: grid; gap: 8px;
}
.share-result[hidden] { display: none; }
.share-result strong { font-size: 1.02rem; }
.share-result > span { color: var(--muted); font-size: .9rem; }
.share-result-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.share-result-row input { flex: 1; min-width: 160px; font-size: .85rem; }

.share-page .share-wrap { max-width: 720px; margin: 0 auto; padding: 12px 20px 80px; }
.share-kicker { color: var(--muted); font-weight: 600; margin: 0 0 4px; text-transform: uppercase; font-size: .75rem; letter-spacing: .06em; }
.share-page h1 { font-size: clamp(1.4rem, 3vw, 1.9rem); letter-spacing: -0.03em; margin: 0 0 22px; }
.share-parties { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 22px; }
.party { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px; font-size: .95rem; line-height: 1.45; }
.party-label { color: var(--muted); font-size: .78rem; font-weight: 700; margin-bottom: 6px; text-transform: uppercase; letter-spacing: .04em; }
.share-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.share-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.share-table th, .share-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line); }
.share-table th { background: #eef5f1; font-size: .78rem; color: var(--muted); }
.share-total { font-size: 1.25rem; margin: 18px 0 10px; }
.share-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 28px; }
.share-cta {
  padding: 18px; border-radius: var(--radius); border: 1px dashed var(--accent);
  background: rgba(15,107,76,.06);
}
.share-cta p { color: var(--muted); margin: 6px 0 14px; }
.seo-quick { margin: 22px 0 8px; max-width: 28rem; }

@media (max-width: 860px) {
  .share-parties { grid-template-columns: 1fr; }
}

.app-banner {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px;
  margin-bottom: 16px; padding: 14px 16px;
  background: linear-gradient(135deg, rgba(15,107,76,.1), rgba(255,252,246,.95));
  border: 1px solid var(--line); border-radius: var(--radius);
}
.app-banner strong { font-size: 1.05rem; }
.app-banner span { color: var(--muted); flex: 1; min-width: 200px; font-size: .92rem; }
.more-fields {
  margin-top: 16px; padding: 12px 14px;
  border: 1px dashed var(--line); border-radius: 12px; background: rgba(255,255,255,.5);
}
.more-fields summary {
  cursor: pointer; font-weight: 700; color: var(--accent); list-style: none;
}
.more-fields summary::-webkit-details-marker { display: none; }
.gen-row { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.aside-soft h3 { font-size: 1rem; }

.sticky-cta {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 18px; background: rgba(255,252,246,.96);
  border-top: 1px solid var(--line); box-shadow: 0 -8px 30px rgba(20,32,26,.08);
  backdrop-filter: blur(8px);
}
.sticky-hint { color: var(--muted); font-weight: 600; }
.app-page { padding-bottom: 72px; }

.quick-form {
  display: grid; gap: 10px; margin-top: 22px; max-width: 28rem;
}
.quick-form input {
  width: 100%; border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 14px; font: inherit; background: #fff;
}
.quick-form .btn { width: 100%; justify-content: center; padding: 12px 18px; }

.landing-sticky {
  position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 40;
  display: none; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 14px; border-radius: 16px;
  background: rgba(255,252,246,.96); border: 1px solid var(--line);
  box-shadow: var(--shadow); backdrop-filter: blur(8px);
}
.landing-sticky span { font-weight: 700; font-size: .95rem; }

@media (max-width: 860px) {
  .hero, .app-grid, .grid, .pricing { grid-template-columns: 1fr; }
  .row3 { grid-template-columns: 1fr 1fr; }
  .preview { transform: none; animation: none; }
  .landing-sticky { display: flex; }
  body:has(.landing-sticky) { padding-bottom: 80px; }
}