:root {
  font-family: Arial, Helvetica, sans-serif;
  color: #f5f7fa;
  background: #0b1118;
  color-scheme: dark;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 0%, #293d5a 0, transparent 32%),
    radial-gradient(circle at 90% 10%, #273c45 0, transparent 30%),
    #0b1118;
}
a { color: inherit; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 22px;
  padding: 18px min(5vw, 72px);
  border-bottom: 1px solid #344155;
  background: rgba(8, 13, 20, .94);
  backdrop-filter: blur(12px);
}
.brand {
  color: #f2b544;
  text-decoration: none;
  font-size: 1.15rem;
  font-weight: 900;
}
.topbar nav {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.topbar nav a {
  color: #d2dae5;
  text-decoration: none;
  font-weight: 700;
}
.hero {
  width: min(1280px, calc(100% - 36px));
  margin: 0 auto;
  padding: 92px 0 70px;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 46px;
  align-items: center;
}
.eyebrow {
  display: block;
  color: #f2b544;
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: .8rem;
  font-weight: 900;
}
h1 {
  margin: 12px 0 22px;
  font-size: clamp(3rem, 7vw, 6.6rem);
  line-height: .95;
}
h2 {
  font-size: clamp(2rem, 4.5vw, 3.8rem);
  line-height: 1.05;
}
.lead {
  max-width: 780px;
  color: #c4cfdb;
  font-size: 1.22rem;
}
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.button {
  display: inline-block;
  padding: 14px 20px;
  border: 0;
  border-radius: 9px;
  background: #f2b544;
  color: #151515;
  text-decoration: none;
  font-weight: 900;
  cursor: pointer;
}
.button.secondary {
  background: #2c394c;
  color: white;
}
.card, .panel, .product-card, .package-card, .benefit {
  border: 1px solid #3a485d;
  border-radius: 16px;
  background: rgba(23, 30, 41, .96);
}
.hero-card {
  padding: 30px;
}
.hero-card li {
  margin: 11px 0;
  color: #c6d0dc;
}
.section {
  width: min(1280px, calc(100% - 36px));
  margin: 0 auto;
  padding: 72px 0;
}
.section-heading {
  max-width: 860px;
  margin-bottom: 30px;
}
.section-heading p {
  color: #b8c3d1;
}
.product-grid, .package-grid, .benefit-grid {
  display: grid;
  gap: 18px;
}
.product-grid {
  grid-template-columns: repeat(3, 1fr);
}
.package-grid {
  grid-template-columns: repeat(3, 1fr);
}
.benefit-grid {
  grid-template-columns: repeat(4, 1fr);
}
.product-card, .package-card, .benefit {
  padding: 24px;
}
.product-card p, .package-card p, .benefit p {
  color: #bac5d2;
}
.product-card a {
  color: #f2b544;
  font-weight: 900;
}
.price {
  color: #f2b544;
  font-size: 2.2rem;
  font-weight: 900;
}
.price small {
  color: #aeb8c5;
  font-size: .9rem;
}
.builder {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.panel {
  padding: 26px;
}
label {
  display: block;
  margin: 13px 0;
  font-weight: 700;
}
input, select, textarea {
  width: 100%;
  margin-top: 6px;
  padding: 12px;
  border: 1px solid #4a5870;
  border-radius: 8px;
  background: #0e151f;
  color: white;
  font: inherit;
}
.choice {
  display: flex;
  gap: 12px;
  padding: 13px;
  border: 1px solid #3d4b60;
  border-radius: 10px;
  margin: 9px 0;
}
.choice input {
  width: auto;
}
.choice strong, .choice small {
  display: block;
}
.choice small {
  color: #aeb8c5;
}
.estimate {
  margin: 20px 0;
  padding: 18px;
  border: 1px solid #6b5928;
  border-radius: 12px;
  background: #111a25;
}
.estimate strong, .estimate small, .estimate span {
  display: block;
}
.estimate strong {
  color: #f2b544;
  font-size: 1.8rem;
}
.status {
  min-height: 24px;
}
.status.success { color: #64df9b; }
.status.error { color: #ff9292; }
.footer {
  padding: 46px 20px;
  text-align: center;
  border-top: 1px solid #354155;
  color: #9da8b6;
}
.placeholder {
  padding: 36px;
  border-left: 4px solid #f2b544;
  background: #141c28;
}
@media (max-width: 920px) {
  .hero, .builder { grid-template-columns: 1fr; }
  .product-grid, .package-grid { grid-template-columns: 1fr 1fr; }
  .benefit-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .topbar nav { display: none; }
  .product-grid, .package-grid, .benefit-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 58px; }
}