:root {
  --bg: #050913;
  --bg-2: #081223;
  --surface: rgba(10, 20, 40, 0.94);
  --surface-soft: rgba(13, 28, 54, 0.96);
  --surface-softer: rgba(7, 16, 32, 0.98);
  --text: #e7f0ff;
  --muted: #9ab0cf;
  --line: rgba(120, 170, 255, 0.58);
  --card-outline: rgba(180, 220, 255, 0.16);
  --primary: #2d7cff;
  --primary-2: #58b7ff;
  --accent: #84d6ff;
  --glow: rgba(77, 170, 255, 0.28);
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.42);
  --max: 1200px;
  --radius: 24px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background-color: var(--bg);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  min-height: 100vh;
  background-color: var(--bg);
}
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}
img { border: 0; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(88, 183, 255, 0.12), transparent 30%),
    radial-gradient(circle at left center, rgba(45, 124, 255, 0.08), transparent 34%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }

.topline {
  background: linear-gradient(135deg, rgba(88,183,255,0.08), rgba(45,124,255,0.12));
  border-bottom: 1px solid var(--line);
  color: var(--accent);
  font-weight: 800;
  font-size: 14px;
}
.topline .container {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  background: rgba(5, 9, 19, 0.94);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 0;
}
.brand-logo { width: 290px; height: auto; }
.nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.nav a {
  font-size: 15px;
  font-weight: 700;
  color: var(--muted);
}
.nav a:hover { color: var(--accent); }

.btn-primary,
.btn-secondary,
.header-cta,
.card-link,
.pill-link,
.article-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 800;
  text-align: center;
}
.btn-primary,
.header-cta,
.card-link,
.article-link {
  color: #fff;
  background: linear-gradient(135deg, var(--primary-2), var(--primary));
  box-shadow: 0 0 0 1px var(--card-outline), var(--shadow);
}
.btn-secondary,
.pill-link {
  border: 1px solid var(--line);
  color: var(--accent);
  background: var(--surface);
}

.hero { padding: 54px 0 24px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 30px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 18px;
}
.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(34px, 5vw, 60px);
  line-height: 1.04;
  letter-spacing: -0.03em;
}
.hero p {
  margin: 0 0 18px;
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--muted);
  max-width: 760px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 18px 0; }
.hero-note, .small, .disclosure { font-size: 14px; color: #7f97bc; }

.hero-card,
.section-card,
.mini-card,
.product-card,
.article-card,
.trust-inner,
.faq-item,
.final-cta-card,
.table-wrap,
.tier-card,
.subtier-grid,
.deep-grid,
.expand-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px var(--card-outline), var(--shadow);
  position: relative;
  overflow: hidden;
}
.hero-card::before,
.section-card::before,
.mini-card::before,
.product-card::before,
.article-card::before,
.trust-inner::before,
.faq-item::before,
.final-cta-card::before,
.table-wrap::before,
.tier-card::before,
.subtier-grid::before,
.deep-grid::before,
.expand-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: linear-gradient(180deg, rgba(132,214,255,0.18) 0%, rgba(132,214,255,0.95) 44%, rgba(45,124,255,0.74) 100%);
  box-shadow: 0 0 10px rgba(104, 190, 255, 0.35);
  border-radius: 999px;
  pointer-events: none;
}
.hero-card::after,
.section-card::after,
.mini-card::after,
.product-card::after,
.article-card::after,
.trust-inner::after,
.faq-item::after,
.final-cta-card::after,
.table-wrap::after,
.tier-card::after,
.subtier-grid::after,
.deep-grid::after,
.expand-panel::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, rgba(132,214,255,0.95) 0%, rgba(45,124,255,0.78) 58%, rgba(132,214,255,0.12) 100%);
  box-shadow: 0 0 10px rgba(104, 190, 255, 0.35);
  border-radius: 999px;
  pointer-events: none;
}

.hero-card { padding: 26px; }
.hero-logo-wrap {
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}
.hero-logo {
  width: min(100%, 620px);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 10px 28px rgba(73, 153, 255, 0.18));
}
.hero-mini-points,
.trust-grid,
.guide-grid,
.article-grid,
.faq-grid,
.footer-grid,
.system-grid,
.product-grid,
.start-grid {
  display: grid;
  gap: 18px;
}
.hero-mini-points { grid-template-columns: 1fr; margin-top: 12px; }
.trust-grid { grid-template-columns: repeat(3, 1fr); }
.start-grid,
.guide-grid { grid-template-columns: repeat(4, 1fr); }
.system-grid, .product-grid { grid-template-columns: repeat(3, 1fr); }
.article-grid { grid-template-columns: repeat(3, 1fr); }
.faq-grid { grid-template-columns: repeat(2, 1fr); }
.footer-grid { grid-template-columns: 1.15fr 0.85fr; }

.mini-point,
.trust-item,
.mini-card,
.product-card,
.article-card,
.faq-item {
  padding: 20px;
}
.mini-point,
.trust-item {
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(10,20,40,0.9), rgba(7,16,32,0.92));
  border: 1px solid var(--line);
  color: var(--accent);
  font-weight: 800;
  text-align: center;
}
.mini-point { color: var(--muted); font-size: 15px; }

.section, .trust-strip, .articles, .final-cta { padding: 22px 0; }
.trust-inner, .section-card { padding: 30px; }
h2 {
  margin: 0 0 14px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.1;
}
.lead {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 18px;
  max-width: 920px;
}
.mini-card h3,
.product-card h3,
.article-card h3,
.faq-item h3,
.tier-card h3,
.subtier-card h3,
.deep-card h3 {
  margin: 0 0 10px;
  font-size: 22px;
}
.mini-card p,
.product-card p,
.article-card p,
.faq-item p,
.footer-brand p,
.footer-links p,
.tier-card p,
.subtier-card p,
.deep-card p { margin: 0; color: var(--muted); }

.product-card,
.article-card,
.mini-card,
.tier-card,
.subtier-card,
.deep-card {
  background: linear-gradient(180deg, rgba(10,20,40,0.96) 0%, rgba(7,16,32,0.98) 100%);
}
.product-card,
.article-card { display: flex; flex-direction: column; gap: 12px; }
.product-tag,
.article-kicker,
.tier-label {
  display: inline-block;
  width: fit-content;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.price-row { font-size: 22px; font-weight: 800; color: var(--accent); }
.rating-row { font-size: 15px; color: var(--muted); font-weight: 700; }
.feature-list { margin: 0; padding-left: 18px; color: var(--muted); }
.feature-list li { margin-bottom: 8px; }
.article-link, .card-link { width: fit-content; margin-top: auto; }

.table-wrap { overflow-x: auto; padding: 10px; margin-top: 22px; }
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 820px;
  background: var(--surface-softer);
  border-radius: 16px;
  overflow: hidden;
}
th, td {
  padding: 16px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 15px;
}
th {
  background: var(--surface-soft);
  color: var(--accent);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
tr:last-child td { border-bottom: none; }

.pyramid-wrap { display: grid; gap: 18px; }
.tier-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.tier-card, .subtier-card, .deep-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 22px;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.tier-card:hover, .subtier-card:hover, .deep-card:hover,
.tier-card.active, .subtier-card.active {
  transform: translateY(-2px);
  border-color: rgba(132,214,255,0.42);
  background: linear-gradient(180deg, rgba(14,28,54,0.98) 0%, rgba(8,18,35,1) 100%);
}
.expand-panel {
  display: none;
  padding: 22px;
}
.expand-panel.active { display: block; }
.subtier-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; padding: 22px; }
.deep-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 22px; }
.deep-card { cursor: default; }
.deep-card a { display: inline-flex; margin-top: 12px; }
.panel-title { margin: 0 0 8px; font-size: 26px; }
.panel-copy { margin: 0; color: var(--muted); }

.final-cta-card {
  padding: 40px 24px;
  text-align: center;
  background: linear-gradient(135deg, rgba(88,183,255,0.07), rgba(45,124,255,0.12));
}
.final-cta p {
  max-width: 760px;
  margin: 0 auto 20px;
  color: var(--muted);
  font-size: 18px;
}
footer {
  border-top: 1px solid var(--line);
  background: rgba(10,20,40,0.86);
  padding: 28px 0 36px;
  margin-top: 20px;
}
.footer-brand img { width: 240px; margin-bottom: 14px; }
.footer-links a {
  display: inline-block;
  margin-right: 16px;
  margin-bottom: 12px;
  color: var(--accent);
  font-weight: 700;
}
.notice-list { margin: 16px 0 0; padding-left: 20px; color: var(--muted); }
.notice-list li { margin-bottom: 8px; }

@media (max-width: 1100px) {
  .hero-grid,
  .trust-grid,
  .start-grid,
  .system-grid,
  .product-grid,
  .article-grid,
  .faq-grid,
  .footer-grid,
  .tier-grid,
  .subtier-grid,
  .deep-grid,
  .guide-grid {
    grid-template-columns: 1fr;
  }
  .nav { display: none; }
  .hero-logo-wrap { min-height: 220px; }
}

@media (max-width: 640px) {
  .brand-logo { width: 220px; }
  .hero { padding-top: 30px; }
  .header-cta, .btn-primary, .btn-secondary { min-height: 42px; padding: 0 14px; font-size: 14px; }
  .section-card, .hero-card, .mini-card, .product-card, .article-card, .faq-item, .final-cta-card, .tier-card, .subtier-card, .deep-card, .expand-panel { padding: 20px; }
  .hero h1 { font-size: 34px; }
  .hero p, .lead, .final-cta p { font-size: 17px; }
}


button,
.btn-primary,
.btn-secondary,
.header-cta,
.card-link,
.pill-link,
.article-link {
  -webkit-appearance: none;
  appearance: none;
}

@supports (-webkit-touch-callout: none) {
  body {
    background-attachment: scroll;
  }
}