:root {
  --bg: #0b132b;
  --bg-alt: #0f1b3d;
  --surface: #111a3a;
  --text: #e6eaf2;
  --muted: #a9b3c6;
  --primary: #2ec4b6;
  --primary-600: #27a89c;
  --accent: #ff9f1c;
  --warning: #ffcc66;
  --good: #3ad29f;
  --ring: rgba(46, 196, 182, 0.35);
  --shadow: 0 10px 30px rgba(10, 15, 45, 0.4);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(46,196,182,0.12), transparent 60%),
    radial-gradient(900px 500px at 90% 10%, rgba(255,159,28,0.10), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg-alt) 40%, var(--bg) 100%);
}

img { max-width: 100%; display: block; }

.container {
  width: min(1100px, 92%);
  margin-inline: auto;
}

.muted { color: var(--muted); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(11, 19, 43, 0.6);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.brand-mark {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #0b132b;
  font-weight: 800;
}
.brand-text { font-size: 18px; }

.nav { display: flex; align-items: center; gap: 18px; }
.nav a { color: var(--text); text-decoration: none; opacity: 0.9; }
.nav a:hover { opacity: 1; }

/* Buttons */
.btn {
  --btn-bg: var(--primary);
  --btn-fg: #0b132b;
  --btn-bg-hover: var(--primary-600);

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 12px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  text-decoration: none;
  font-weight: 700;
  box-shadow: var(--shadow);
  transition: transform 0.08s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); background: var(--btn-bg-hover); }
.btn:active { transform: translateY(0); }

.btn-primary { --btn-bg: var(--primary); --btn-bg-hover: var(--primary-600); }
.btn-secondary { --btn-bg: #1f2a52; --btn-fg: var(--text); --btn-bg-hover: #243061; }
.btn-ghost {
  --btn-bg: transparent; --btn-fg: var(--text); --btn-bg-hover: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  box-shadow: none;
}
.btn-small { padding: 10px 14px; border-radius: 10px; font-size: 14px; }

/* Hero */
.hero {
  padding: 72px 0 36px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 42px;
  align-items: center;
}
.hero h1 {
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.08;
  margin: 0 0 14px;
}
.subtitle { color: var(--muted); font-size: 18px; margin: 0 0 20px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin: 8px 0 12px; }
.hero-points { margin: 12px 0 0; padding: 0; list-style: none; color: var(--muted); display: grid; gap: 8px; }
.hero-points li::before { content: "✓"; color: var(--primary); margin-right: 8px; }

.hero-art { display: grid; place-items: center; }
.window {
  width: 100%;
  max-width: 520px;
  background: #0f1736;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.window-header { display: flex; gap: 8px; padding: 10px; background: #0b1330; border-bottom: 1px solid rgba(255,255,255,0.06); }
.window-header .dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.2); }
.window-body { padding: 14px; }
.table { display: grid; gap: 8px; margin-bottom: 12px; }
.table .row { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 10px; padding: 10px 12px; border: 1px solid rgba(255,255,255,0.08); border-radius: 10px; background: rgba(255,255,255,0.02); }
.table .head { color: var(--muted); background: transparent; border: 1px dashed rgba(255,255,255,0.12); }
.status { padding: 2px 8px; border-radius: 999px; justify-self: start; font-weight: 700; font-size: 12px; }
.status.good { background: rgba(58,210,159,0.15); color: var(--good); }
.status.warn { background: rgba(255,204,102,0.15); color: var(--warning); }

.recommend { border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 12px; background: linear-gradient(180deg, rgba(46,196,182,0.12), rgba(46,196,182,0.06)); }
.recommend .badge { display: inline-block; padding: 4px 8px; border-radius: 999px; background: rgba(46,196,182,0.2); color: var(--primary); font-weight: 700; font-size: 12px; margin-bottom: 6px; }

.note { text-align: center; color: var(--muted); font-size: 14px; margin-top: 16px; opacity: 0.9; }

/* Sections */
.section { padding: 64px 0; }
.section.alt { background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02)); border-top: 1px solid rgba(255,255,255,0.06); border-bottom: 1px solid rgba(255,255,255,0.06); }
.section-head { text-align: center; margin-bottom: 28px; }
.section-head h2 { margin: 0 0 8px; font-size: clamp(22px, 3vw, 30px); }
.section-head p { color: var(--muted); margin: 0; }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card { padding: 18px; border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; background: rgba(12, 20, 48, 0.5); box-shadow: var(--shadow); }
.card .icon { font-size: 22px; margin-bottom: 8px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }

/* Steps */
.steps { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
.steps li { display: grid; grid-template-columns: 36px 1fr; gap: 14px; align-items: start; padding: 14px; border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; background: rgba(255,255,255,0.03); }
.step-num { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 9px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #0b132b; font-weight: 900; }

/* ROI strip */
.roi { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 14px; border: 1px dashed rgba(255,255,255,0.16); border-radius: 14px; background: rgba(255,255,255,0.02); }
.roi-big { font-size: clamp(22px, 3.4vw, 32px); font-weight: 800; }
.roi-label { color: var(--muted); }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq details { border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 12px 14px; background: rgba(255,255,255,0.03); }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { color: var(--muted); margin: 10px 0 0; }

/* Footer */
.site-footer { padding: 36px 0 22px; border-top: 1px solid rgba(255,255,255,0.06); background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 20px; align-items: start; }
.footer-grid h4 { margin: 0 0 10px; }
.footer-grid ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.legal { text-align: center; margin-top: 18px; color: var(--muted); font-size: 13px; }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}