:root {
  --bg: #070b18;
  --surface: rgba(255, 255, 255, 0.05);
  --surface-strong: rgba(255, 255, 255, 0.09);
  --border: rgba(148, 163, 255, 0.16);
  --ink: #e8edff;
  --muted: #9aa6c8;
  --accent-1: #38bdf8;
  --accent-2: #6366f1;
  --accent-3: #e879f9;
  --brand: #38bdf8;
  --brand-dark: #6366f1;
  --gradient: linear-gradient(120deg, #38bdf8 0%, #6366f1 55%, #e879f9 100%);
  --glow: 0 10px 40px -10px rgba(99, 102, 241, 0.45);
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  line-height: 1.65;
  background:
    radial-gradient(1100px 700px at 0% 0%, rgba(56, 189, 248, 0.55), transparent 65%),
    radial-gradient(1100px 700px at 100% 0%, rgba(168, 85, 247, 0.6), transparent 65%),
    radial-gradient(900px 700px at 50% 110%, rgba(99, 102, 241, 0.45), transparent 65%),
    var(--bg);
  background-attachment: fixed;
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(7, 11, 24, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  color: var(--ink);
  padding: 14px 24px;
  font-weight: 700;
  letter-spacing: 0.01em;
  box-shadow: none;
}
header a { color: var(--ink) !important; }
header img { filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.5)); }

main {
  max-width: 800px;
  margin: 40px auto;
  padding: 0 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 30px;
  margin-bottom: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 20px 50px -20px rgba(0, 0, 0, 0.6);
}

h1 {
  font-size: 2.3rem;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
h2 { color: #fff; font-size: 1.35rem; letter-spacing: -0.01em; }
h3 { color: #fff; }
p { color: #cdd6f0; }
a { color: var(--accent-1); }
.lede { color: var(--muted); font-size: 1.08rem; margin: 0 0 22px; }

footer {
  max-width: 800px;
  margin: 0 auto 48px;
  padding: 0 20px;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

label {
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
}

input {
  width: 100%;
  padding: 12px 14px;
  margin-top: 8px;
  font: inherit;
  font-size: 1rem;
  color: #fff;
  background: rgba(7, 11, 24, 0.6);
  border: 1px solid rgba(148, 163, 255, 0.25);
  border-radius: 12px;
  transition: border-color .2s, box-shadow .2s;
}
input:focus {
  outline: none;
  border-color: var(--accent-1);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.18);
}

button, .cta {
  display: inline-block;
  margin-top: 22px;
  background: var(--gradient);
  color: #fff;
  border: 0;
  border-radius: 999px;
  padding: 13px 26px;
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--glow);
  transition: transform .15s, box-shadow .2s;
}
button:hover, .cta:hover { transform: translateY(-1px); box-shadow: 0 14px 40px -10px rgba(232, 121, 249, 0.5); }

.error { color: #fda4af; margin-top: 14px; }

.results {
  background: linear-gradient(160deg, rgba(56, 189, 248, 0.14), rgba(99, 102, 241, 0.14) 60%, rgba(232, 121, 249, 0.12));
  border-color: rgba(56, 189, 248, 0.35);
}
.big {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 18px;
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
}
th, td {
  text-align: right;
  padding: 12px 10px;
  border-bottom: 1px solid rgba(148, 163, 255, 0.12);
  color: #dfe6ff;
}
th:first-child, td:first-child { text-align: left; }
th {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
}
tr.highlight td {
  color: #fff;
  font-weight: 700;
  background: rgba(99, 102, 241, 0.15);
}
.num { text-align: right; }

ins.adsbygoogle { min-height: 60px; }

@media (max-width: 600px) {
  h1 { font-size: 1.8rem; }
  .big { font-size: 2.2rem; }
  .card { padding: 22px; }
  .grid { grid-template-columns: 1fr !important; }
}