:root {
  --bg: #eef2f5;
  --paper: #ffffff;
  --paper-soft: #f7fafc;
  --ink: #11202c;
  --ink-soft: #405361;
  --accent: #156082;
  --accent-2: #2a7da6;
  --steel: #6d7f8a;
  --ok: #1f8d4e;
  --warn: #a05815;
  --shadow: 0 10px 24px rgba(14, 34, 45, 0.12);
  --radius: 14px;
  --maxw: 1140px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "Aptos", "Trebuchet MS", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 8% -10%, #d9e7ef 0, transparent 40%),
              radial-gradient(circle at 90% 0%, #dbe9f2 0, transparent 35%),
              var(--bg);
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: min(var(--maxw), 92vw); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid #d3dde4;
  backdrop-filter: blur(8px);
  background: rgba(238, 242, 245, 0.92);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0;
}

.brand { font-size: 1.2rem; font-weight: 800; letter-spacing: 0.2px; color: var(--ink); }
.brand-sub { font-size: 0.74rem; color: var(--ink-soft); display: block; font-weight: 600; }

nav { display: flex; flex-wrap: wrap; gap: 14px; }
nav a { font-weight: 600; color: var(--ink-soft); }

.hero {
  display: grid;
  gap: 22px;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  margin: 26px 0;
}

.hero-card, .card {
  background: var(--paper);
  border: 1px solid #d8e2e9;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card { padding: 28px; }
.hero h1 { font-size: clamp(1.8rem, 3.8vw, 2.9rem); line-height: 1.15; margin: 0 0 12px; }
.hero p { margin: 0 0 16px; color: var(--ink-soft); }

.kpis {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, 1fr);
}

.kpi {
  background: linear-gradient(170deg, #16384b 0%, #1b566f 100%);
  color: #f2f8fc;
  padding: 16px;
  border-radius: 12px;
}
.kpi .label { font-size: 0.8rem; opacity: 0.85; }
.kpi .value { font-size: 1.55rem; font-weight: 800; }

.section { margin: 28px 0; }

.grid-tools {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.tool-tile { padding: 16px; border-radius: 12px; background: var(--paper-soft); border: 1px solid #d7e3ea; }
.tool-tile h3 { margin: 0 0 6px; font-size: 1.05rem; }
.tool-tile p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }

.main-calc {
  display: grid;
  gap: 18px;
  grid-template-columns: 1.15fr 1fr;
}

.card-pad { padding: 18px; }

.field-grid {
  display: grid;
  gap: 11px;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
}

.field-grid.one { grid-template-columns: 1fr; }

label { font-size: 0.86rem; font-weight: 700; display: block; margin-bottom: 4px; }
input, select, textarea {
  width: 100%;
  border: 1px solid #c3d3de;
  border-radius: 10px;
  padding: 10px 11px;
  background: #fff;
  color: var(--ink);
}

.help { color: var(--ink-soft); font-size: 0.82rem; margin-top: 3px; }

.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

button, .btn {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
  background: var(--accent);
  color: white;
}

button.secondary, .btn.secondary {
  background: #e6eff4;
  color: var(--ink);
  border: 1px solid #c8d9e4;
}

.result-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
}

.result {
  background: linear-gradient(165deg, #eff5f9 0%, #e6eff5 100%);
  border: 1px solid #cfdee8;
  border-radius: 11px;
  padding: 11px;
}

.result strong { display: block; font-size: 1.35rem; margin-top: 4px; }

.insights {
  margin-top: 12px;
  padding: 11px;
  background: #f4f8fb;
  border-radius: 10px;
  border: 1px dashed #c3d6e3;
}

.insights p { margin: 0 0 6px; font-size: 0.93rem; }

.ad-slot {
  margin: 22px 0;
  border: 1px dashed #9db4c4;
  border-radius: 11px;
  min-height: 92px;
  background: repeating-linear-gradient(45deg, #f8fbfd, #f8fbfd 10px, #f1f7fb 10px, #f1f7fb 20px);
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--ink-soft);
  padding: 10px;
  font-weight: 600;
}

.ad-slot--native {
  min-height: 130px;
  padding: 14px;
}

.ad-slot--leaderboard {
  min-height: 116px;
  overflow: hidden;
}

.ad-slot--leaderboard > div,
.ad-slot--native > div {
  width: 100%;
}

.ad-label {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
}

.sponsored-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.sponsored-card p {
  margin: 0;
  color: var(--ink-soft);
}

.launch-note {
  margin-top: 8px;
  color: var(--ink-soft);
}

.content {
  background: var(--paper);
  border: 1px solid #d8e3ea;
  border-radius: var(--radius);
  padding: 18px;
}

.content h2 { margin-top: 0; }

.faq details {
  background: #f8fbfd;
  border: 1px solid #d5e2ea;
  border-radius: 10px;
  margin-bottom: 9px;
  padding: 9px 11px;
}

.footer {
  margin-top: 34px;
  padding: 24px 0 34px;
  border-top: 1px solid #cfdce5;
  color: var(--ink-soft);
}

.footer-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 2fr 1fr 1fr;
}

.small { font-size: 0.86rem; }

@media (max-width: 920px) {
  .hero, .main-calc, .footer-grid { grid-template-columns: 1fr; }
  nav { display: none; }
}

@media (max-width: 760px) {
  .sponsored-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .ad-slot--leaderboard {
    min-height: 104px;
    padding-inline: 6px;
  }
}