:root {
  --bg: #f4f6f8;
  --text: #111827;
  --muted: #5f6b7a;
  --border: #dfe5ec;
  --dark: #111827;
  --green: #047857;
  --green-soft: #ecfdf5;
  --blue: #2563eb;
  --blue-soft: #eaf2ff;
  --amber: #b45309;
  --amber-soft: #fff7ed;
  --shadow: 0 18px 45px rgba(15, 23, 42, .08);
  --shadow-strong: 0 30px 80px rgba(15, 23, 42, .16);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: linear-gradient(135deg, rgba(37, 99, 235, .10), transparent 34%), linear-gradient(180deg, #fff 0%, var(--bg) 48%, #eef2f7 100%);
  letter-spacing: 0;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin-top: 0; letter-spacing: 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  width: min(var(--max), calc(100% - 32px));
  margin: 18px auto 0;
  padding: 10px;
  border: 1px solid rgba(223, 229, 236, .9);
  border-radius: 8px;
  background: rgba(255, 255, 255, .88);
  box-shadow: 0 12px 30px rgba(15, 23, 42, .06);
  backdrop-filter: blur(18px);
}
.brand, .header-cta, .nav-links a, .btn { min-height: 44px; border-radius: 8px; font-weight: 800; }
.brand { display: inline-flex; align-items: center; gap: 10px; padding: 0 12px; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; color: #fff; border-radius: 8px; background: var(--dark); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a, .header-cta { display: inline-flex; align-items: center; padding: 0 14px; color: #374151; }
.nav-links a:hover, .header-cta:hover { background: #f3f6fa; }
.header-cta, .header-cta:hover { color: #fff; background: var(--dark); }

.hero {
  position: relative;
  min-height: 760px;
  overflow: hidden;
  display: grid;
  align-items: center;
  margin-top: -73px;
  padding: 160px 16px 92px;
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 170px;
  background: linear-gradient(180deg, rgba(244, 246, 248, 0), var(--bg));
  pointer-events: none;
}
.hero-scene {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: grid;
  place-items: center;
  padding: 150px 16px 70px;
  pointer-events: none;
}
.signal-board {
  position: relative;
  width: min(1080px, 100%);
  min-height: 520px;
  overflow: hidden;
  border: 1px solid rgba(223, 229, 236, .92);
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(17, 24, 39, .05) 1px, transparent 1px) 0 0 / 44px 44px, linear-gradient(180deg, rgba(255, 255, 255, .8), rgba(238, 242, 247, .9));
  box-shadow: var(--shadow-strong);
}
.signal-board::before {
  content: "";
  position: absolute;
  inset: 84px 140px 96px;
  border-radius: 8px;
  background: rgba(255, 255, 255, .72);
  box-shadow: 0 0 70px 85px rgba(255, 255, 255, .72);
}
.status-strip { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 8px; padding: 18px; }
.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: #374151;
  background: rgba(255, 255, 255, .82);
  font-weight: 800;
  font-size: .82rem;
}
.status-pill.online { color: var(--green); background: var(--green-soft); border-color: rgba(4, 120, 87, .18); }
.status-pill.amber { color: var(--amber); background: var(--amber-soft); border-color: rgba(180, 83, 9, .18); }
.signal-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 170px 54px 28px;
}
.signal-tile {
  min-height: 118px;
  padding: 16px;
  border: 1px solid rgba(223, 229, 236, .94);
  border-radius: 8px;
  background: rgba(255, 255, 255, .88);
  box-shadow: 0 14px 26px rgba(15, 23, 42, .06);
}
.signal-tile.primary { transform: translateY(-28px); border-color: rgba(37, 99, 235, .24); background: #f8fbff; }
.signal-tile.dark { color: #fff; border-color: rgba(17, 24, 39, .35); background: rgba(17, 24, 39, .82); }
.tile-label, .signal-tile small { display: block; color: var(--muted); font-size: .84rem; font-weight: 750; }
.signal-tile.dark .tile-label, .signal-tile.dark small { color: rgba(255, 255, 255, .72); }
.signal-tile strong { display: block; margin-top: 10px; font-size: 1.25rem; }
.bars { display: flex; align-items: flex-end; gap: 5px; height: 38px; margin-top: 14px; }
.bars i { width: 12px; border-radius: 4px 4px 0 0; background: var(--blue); }
.bars i:nth-child(1) { height: 14px; }
.bars i:nth-child(2) { height: 23px; }
.bars i:nth-child(3) { height: 32px; }
.bars i:nth-child(4) { height: 38px; }
.device-line {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  width: min(460px, calc(100% - 42px));
  margin: 10px 54px 0 auto;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, .88);
  font-weight: 800;
}
.device-line.muted { opacity: .72; }
.device-line b { color: var(--blue); }
.hero-content {
  position: relative;
  z-index: 2;
  width: min(780px, 100%);
  margin: 0 auto;
  text-align: center;
}
.eyebrow { margin: 0 0 14px; color: var(--blue); font-size: .78rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
h1 { margin-bottom: 16px; font-size: clamp(4rem, 8vw, 6.5rem); line-height: .92; font-weight: 950; }
.hero-copy { max-width: 690px; margin: 0 auto; color: #4b5563; font-size: 1.18rem; line-height: 1.7; font-weight: 650; text-wrap: balance; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 30px; }
.hero-actions.center { margin-top: 24px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  box-shadow: 0 10px 24px rgba(15, 23, 42, .06);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(15, 23, 42, .10); }
.btn.primary, .btn.full { color: #fff; border-color: var(--dark); background: var(--dark); }
.btn.secondary { color: var(--text); background: rgba(255, 255, 255, .9); }
.btn.full { width: 100%; margin-top: 18px; }
.hero-proof { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 28px; }
.hero-proof span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, .9);
  border: 1px solid var(--border);
  color: #374151;
  font-size: .86rem;
  font-weight: 850;
}

.intro-band, .section, .ops-panel, .final-cta, .site-footer { width: min(var(--max), calc(100% - 32px)); margin-left: auto; margin-right: auto; }
.intro-band { position: relative; z-index: 3; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: -34px; }
.intro-card, .price-card, .ops-panel, .faq-grid details, .journey-list article {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--shadow);
}
.intro-card { padding: 22px; }
.intro-card strong, .intro-card span { display: block; }
.intro-card strong { margin-bottom: 8px; font-size: 1.06rem; }
.intro-card span, .section-heading p, .price-card p, .journey-list p, .ops-copy p, .ops-grid span, .faq-grid p, .site-footer span { color: var(--muted); line-height: 1.65; }
.section { padding: 88px 0 0; }
.section-heading { max-width: 760px; margin-bottom: 28px; }
.section-heading.compact { max-width: 520px; margin-bottom: 0; }
h2 { margin-bottom: 12px; font-size: 2.6rem; line-height: 1.05; }
.pricing-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.price-card { display: flex; min-height: 460px; flex-direction: column; justify-content: space-between; padding: 20px; }
.price-card.highlight { border-color: rgba(37, 99, 235, .22); background: linear-gradient(180deg, #fff, #f8fbff); }
.price-card.calm { border-color: rgba(4, 120, 87, .2); background: linear-gradient(180deg, #fff, #f7fffb); }
.duration { display: inline-flex; align-items: center; min-height: 32px; padding: 0 10px; border-radius: 8px; color: var(--blue); background: var(--blue-soft); font-weight: 900; font-size: .86rem; }
.price-card h3 { margin: 16px 0 8px; font-size: 1.3rem; }
.price-main { margin: 18px 0; }
.price-main span, .price-main strong { display: block; }
.price-main span { color: var(--muted); font-size: .86rem; font-weight: 800; }
.price-main strong { margin-top: 2px; font-size: 2rem; }
.slot-list { display: grid; gap: 8px; padding: 0; margin: 0; list-style: none; }
.slot-list li { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid #eef2f7; color: #374151; font-weight: 760; }
.slot-list b { color: var(--text); }
.split-section { display: grid; grid-template-columns: .9fr 1.1fr; gap: 42px; align-items: start; }
.journey-list { display: grid; gap: 12px; }
.journey-list article { display: grid; grid-template-columns: 52px 1fr; gap: 2px 14px; padding: 18px; }
.journey-list span { grid-row: span 2; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 8px; color: #fff; background: var(--dark); font-weight: 900; font-size: .86rem; }
.journey-list strong { font-size: 1.08rem; }
.journey-list p { margin-bottom: 0; }
.ops-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; margin-top: 88px; padding: 28px; background: linear-gradient(90deg, rgba(255,255,255,.94), rgba(255,255,255,.82)), repeating-linear-gradient(135deg, #eef2f7 0 1px, transparent 1px 18px); }
.ops-copy h2 { max-width: 430px; }
.ops-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.ops-grid div { min-height: 142px; padding: 18px; border-radius: 8px; background: #fff; border: 1px solid var(--border); }
.ops-grid strong, .ops-grid span { display: block; }
.ops-grid strong { margin-bottom: 10px; font-size: 1.05rem; }
.faq-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 28px; }
.faq-grid details { padding: 18px 20px; }
.faq-grid summary { cursor: pointer; color: var(--text); font-weight: 900; }
.faq-grid p { margin: 14px 0 0; }
.final-cta { margin-top: 88px; padding: 60px 24px; border-radius: 8px; text-align: center; color: #fff; background: linear-gradient(120deg, rgba(17,24,39,.96), rgba(31,41,55,.96)), repeating-linear-gradient(90deg, rgba(255,255,255,.12) 0 1px, transparent 1px 34px); box-shadow: var(--shadow-strong); }
.final-cta .eyebrow { color: #93c5fd; }
.final-cta h2 { max-width: 720px; margin-left: auto; margin-right: auto; }
.final-cta .btn.secondary { color: #fff; background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.25); }
.site-footer { display: flex; justify-content: space-between; gap: 20px; padding: 34px 0 44px; }
.site-footer strong, .site-footer span, .footer-links a { display: block; }
.footer-links { display: flex; gap: 16px; font-weight: 850; }
.footer-links a:hover { color: var(--blue); }

@media (max-width: 980px) {
  .nav-links { display: none; }
  .hero { min-height: 720px; padding-top: 140px; }
  h2 { font-size: 2.15rem; }
  .signal-board::before { inset: 86px 40px 86px; box-shadow: 0 0 60px 70px rgba(255,255,255,.76); }
  .signal-grid, .intro-band, .split-section, .ops-panel, .faq-grid { grid-template-columns: 1fr; }
  .signal-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 250px 22px 22px; }
  .pricing-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .device-line { margin-right: 22px; }
}
@media (max-width: 640px) {
  .site-header { width: calc(100% - 20px); margin-top: 10px; }
  .brand { padding: 0 8px; }
  .header-cta { padding: 0 10px; font-size: .9rem; }
  .hero { min-height: 780px; padding: 126px 10px 70px; }
  .hero-scene { padding: 128px 10px 54px; }
  .signal-board { min-height: 610px; }
  .signal-board::before { inset: 82px 18px 210px; box-shadow: 0 0 45px 54px rgba(255,255,255,.82); }
  .status-strip { padding: 14px; }
  .status-pill { min-height: 31px; font-size: .76rem; }
  .signal-grid { grid-template-columns: 1fr 1fr; gap: 10px; padding: 315px 12px 14px; }
  .signal-tile { min-height: 112px; padding: 13px; }
  .signal-tile.primary { transform: none; }
  .signal-tile strong { font-size: 1.05rem; }
  .device-line { width: calc(100% - 24px); margin: 8px 12px 0; font-size: .86rem; }
  h1 { font-size: 3.45rem; }
  .hero-copy { font-size: 1.02rem; line-height: 1.58; }
  .btn { width: 100%; }
  .intro-band, .section, .ops-panel, .final-cta, .site-footer { width: calc(100% - 20px); }
  .pricing-grid, .ops-grid { grid-template-columns: 1fr; }
  .price-card { min-height: 0; }
  .site-footer, .footer-links { flex-direction: column; }
}
