:root {
  --bg: #0b1220;
  --bg-soft: #121a2b;
  --card: #162033;
  --border: #243049;
  --text: #e8eef9;
  --muted: #9aa8c3;
  --accent: #3ddea4;
  --accent-2: #5b8cff;
  --danger: #ff6b7a;
  --warn: #ffc857;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(0,0,0,.35);
  --font: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 10% -10%, #1a2a4a 0%, transparent 55%),
              radial-gradient(900px 500px at 100% 0%, #12352c 0%, transparent 50%),
              var(--bg);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1120px, 92%); margin: 0 auto; }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 0; gap: 1rem; flex-wrap: wrap;
}
.brand {
  display: flex; align-items: center; gap: .6rem;
  font-weight: 800; letter-spacing: -.02em; font-size: 1.15rem; color: var(--text);
  text-decoration: none;
}
.brand-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; color: #061018; font-weight: 900; font-size: .85rem;
}
.nav-links { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.nav-links a { color: var(--muted); font-weight: 500; text-decoration: none; }
.nav-links a:hover { color: var(--text); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  border: 0; border-radius: 999px; padding: .7rem 1.15rem;
  font-weight: 700; cursor: pointer; font-size: .95rem;
  transition: transform .12s ease, opacity .12s ease;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--accent); color: #061018; }
.btn-secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost { background: var(--card); color: var(--text); border: 1px solid var(--border); }
.hero { padding: 2.2rem 0 1.2rem; }
.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.1rem); line-height: 1.12;
  letter-spacing: -.03em; margin: 0 0 .85rem;
}
.hero p.lead { color: var(--muted); font-size: 1.12rem; max-width: 58ch; margin: 0 0 1.25rem; }
.badge {
  display: inline-flex; align-items: center; gap: .4rem;
  background: rgba(61,222,164,.12); color: var(--accent);
  border: 1px solid rgba(61,222,164,.35);
  padding: .35rem .7rem; border-radius: 999px; font-size: .82rem; font-weight: 700;
  margin-bottom: 1rem;
}
.grid-2 {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 1.25rem; align-items: start;
}
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.03), transparent 40%), var(--card);
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1.15rem;
}
.card h2, .card h3 { margin-top: 0; letter-spacing: -.02em; }
.tabs {
  display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem;
}
.tab {
  background: var(--bg-soft); color: var(--muted); border: 1px solid var(--border);
  border-radius: 999px; padding: .45rem .85rem; cursor: pointer; font-weight: 600; font-size: .88rem;
}
.tab.active { color: #061018; background: var(--accent); border-color: transparent; }
label { display: block; font-size: .85rem; color: var(--muted); margin: .65rem 0 .3rem; font-weight: 600; }
input[type=text], input[type=url], input[type=email], input[type=tel], input[type=password],
textarea, select {
  width: 100%; background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px; padding: .7rem .8rem; font: inherit;
}
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(61,222,164,.35); border-color: var(--accent); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
@media (max-width: 600px) { .row { grid-template-columns: 1fr; } }
.field-group { display: none; }
.field-group.active { display: block; }
.preview-wrap { text-align: center; }
#qrCanvas, #qrPreview {
  width: min(280px, 100%); aspect-ratio: 1; margin: .5rem auto 1rem;
  background: #fff; border-radius: 12px; display: grid; place-items: center; overflow: hidden;
}
#qrCanvas canvas, #qrCanvas img, #qrPreview img { max-width: 100%; height: auto; display: block; }
.controls { display: flex; flex-wrap: wrap; gap: .55rem; justify-content: center; margin-top: .5rem; }
.color-row { display: flex; gap: .75rem; align-items: end; flex-wrap: wrap; }
.color-row > div { flex: 1; min-width: 120px; }
.promise {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; padding: 2rem 0 1rem;
}
@media (max-width: 800px) { .promise { grid-template-columns: 1fr; } }
.promise .card { padding: 1.2rem; }
.promise .icon { font-size: 1.4rem; margin-bottom: .4rem; }
.section { padding: 2.2rem 0; }
.section h2 { font-size: 1.7rem; letter-spacing: -.02em; margin: 0 0 .6rem; }
.muted { color: var(--muted); }
.pricing {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.2rem;
}
@media (max-width: 700px) { .pricing { grid-template-columns: 1fr; } }
.price { font-size: 2.4rem; font-weight: 800; letter-spacing: -.03em; }
.price span { font-size: 1rem; color: var(--muted); font-weight: 600; }
.list { padding-left: 1.1rem; margin: .8rem 0 1.1rem; color: var(--muted); }
.list li { margin: .35rem 0; }
.tag {
  display: inline-block; background: rgba(91,140,255,.15); color: #9cbcff;
  border: 1px solid rgba(91,140,255,.35); border-radius: 999px;
  padding: .2rem .55rem; font-size: .75rem; font-weight: 700; margin-left: .4rem;
}
.footer {
  border-top: 1px solid var(--border); margin-top: 2.5rem; padding: 1.5rem 0 2.5rem;
  color: var(--muted); font-size: .9rem;
}
.footer-grid { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.seo-card a { color: var(--text); font-weight: 700; text-decoration: none; }
.seo-card p { color: var(--muted); margin: .4rem 0 0; }
.notice {
  background: rgba(255,200,87,.08); border: 1px solid rgba(255,200,87,.3);
  color: #ffe2a0; border-radius: 12px; padding: .85rem 1rem; margin: 1rem 0;
}
.prose { max-width: 72ch; }
.prose h1 { letter-spacing: -.03em; }
.prose h2 { margin-top: 1.8rem; }

/* Brand logo */
.brand img.logo {
  width: 32px; height: 32px; border-radius: 9px; display: block;
}
.brand-mark { display: none; }

/* Our Promise — prominent */
.our-promise {
  margin: 1.5rem 0 0;
  padding: 1.35rem 1.4rem;
  border-radius: 16px;
  border: 1px solid rgba(61,222,164,.45);
  background:
    linear-gradient(135deg, rgba(61,222,164,.14), rgba(91,140,255,.08)),
    var(--card);
  box-shadow: 0 0 0 1px rgba(61,222,164,.12), var(--shadow);
}
.our-promise h2 {
  margin: 0 0 .55rem;
  font-size: 1.35rem;
  letter-spacing: -.02em;
  color: var(--accent);
}
.our-promise p { margin: 0; color: var(--text); font-size: 1.02rem; max-width: 70ch; }
.our-promise ul { margin: .75rem 0 0; padding-left: 1.15rem; color: var(--muted); }
.our-promise li { margin: .35rem 0; }

.seo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: .85rem;
  margin-top: 1rem;
}
.seo-grid .card { padding: 1rem; }
.related { margin-top: 2rem; }
.related a { display: inline-block; margin: .25rem .55rem .25rem 0; }