/* The design target is a 1920px desktop with 1840px usable content.
   The compact stylesheet remains the fallback for narrower screens. */
@media (min-width: 1600px) {
  body { font-size: 16px; }
  header, main { width: min(1840px, calc(100% - 80px)); }
  header { height: 72px; }
  .brand { font-size: 18px; gap: 12px; }
  .shield { width: 31px; height: 36px; }
  nav { gap: 54px; }
  nav a { font-size: 15px; }
  .private { font-size: 13px; padding: 9px 16px; }

  .hero { height: 350px; grid-template-columns: .92fr 1.08fr; padding: 38px 104px 42px; }
  .hero h1 { font-size: 43px; line-height: 1.12; letter-spacing: -1.2px; margin-bottom: 18px; }
  .hero p { font-size: 16px; line-height: 1.55; margin-bottom: 20px; }
  .badges { gap: 12px; }
  .badges span { font-size: 13px; padding: 8px 14px; }
  .hero-flow { grid-template-columns: 180px 55px 245px 55px 180px; justify-content: center; }
  .flow-person, .flow-escrow { height: 94px; padding: 16px; gap: 15px; }
  .flow-person i, .flow-escrow i { width: 47px; height: 47px; font-size: 25px; }
  .flow-person b, .flow-escrow b { font-size: 15px; }
  .flow-person small, .flow-escrow small { font-size: 13px; }
  .flow-escrow { height: 102px; }
  .flow-escrow i { font-size: 37px; }
  .arrow { font-size: 31px; }
  .fee { top: 116px; left: 310px; width: 190px; padding: 10px 15px; font-size: 13px; }

  .control { padding: 16px 20px 19px; }
  .control-title { height: 44px; }
  .control-title h2, .panel h2 { font-size: 17px; }
  .control-title button { font-size: 13px; padding: 8px 16px; }
  .control-grid { grid-template-columns: 340px 1fr; gap: 54px; }
  .match-card { width: auto; height: 300px; }
  .demo-tag { top: 16px; font-size: 11px; padding: 5px 11px; }
  .players { height: 176px !important; padding-bottom: 24px !important; }
  .players i { width: 58px; height: 58px; font-size: 32px; }
  .players b { font-size: 15px; }
  .players small { font-size: 13px; }
  .players > strong { font-size: 27px; }
  .money { height: 68px !important; }
  .money span { padding: 10px 18px; font-size: 13px; }
  .money b { font-size: 18px; }
  .match-id { height: 56px !important; padding: 8px 18px !important; font-size: 12px; }
  .match-id b { font-size: 13px; }
  .stage-track { gap: 18px; padding-bottom: 18px; }
  .stage { height: 286px; padding: 16px; }
  .stage header { gap: 10px; }
  .stage header i { width: 31px; height: 31px; font-size: 14px; }
  .stage header b { font-size: 14px; }
  .stage-icon { width: 69px; height: 69px; margin: 30px 0 14px; font-size: 32px; }
  .stage > strong { font-size: 15px; }
  .stage > small { font-size: 13px; }
  .stage button { font-size: 12px; padding: 8px; }
  .deposit { padding: 10px; margin-top: 12px; }
  .deposit b, .deposit small { font-size: 12px; }

  .mid-grid { grid-template-columns: 560px 1fr; gap: 12px; margin-top: 12px; }
  .timeline, .architecture { height: 290px; padding: 19px; }
  .view-toggle { font-size: 11px; }
  .event-row { grid-template-columns: 88px 1fr; padding: 5px 0 5px 29px; font-size: 13px; }
  .event-row:before { width: 18px; height: 18px; font-size: 10px; }
  .empty { padding-top: 78px; font-size: 14px; }
  .architecture h2 { margin-bottom: 18px; }
  .arch-flow { grid-template-columns: 1fr 70px 1fr 70px 1fr 70px 1fr; }
  .arch-flow > div { height: 150px; }
  .arch-flow i { font-size: 30px; }
  .arch-flow b { font-size: 14px; }
  .arch-flow small { font-size: 12px; }
  .arch-flow > span { font-size: 11px; }
  .principles { gap: 17px; margin-top: 15px; }
  .principles span { padding: 9px; font-size: 12px; }

  .bottom-grid { gap: 12px; margin-top: 12px; }
  .info { height: 188px; padding: 16px; }
  .info h2 { margin-bottom: 13px; }
  .three > span { padding: 0 14px; }
  .three i { width: 23px; height: 23px; font-size: 12px; }
  .three b { font-size: 12px; margin-top: 6px; }
  .three code { font-size: 10px; margin: 4px 0; }
  .three small, .security small { font-size: 11px; }
  .info li, .security b { font-size: 12px; }
  .security span { padding: 7px 10px; }
  .evidence a { font-size: 11px; padding: 8px 14px; }
  .cta { width: 920px; height: 88px; margin: 12px auto 24px; padding: 16px 55px; }
  .cta b { font-size: 16px; }
  .cta span { font-size: 13px; }
  .cta a { font-size: 13px; padding: 12px 105px; }
}

@media (min-width: 1920px) {
  .hero { padding-inline: 120px; }
  .control-grid { grid-template-columns: 360px 1fr; gap: 60px; }
  .mid-grid { grid-template-columns: 590px 1fr; }
}