/* The puzzle leads; optional commerce and collection stay below play. */
.game-shell { max-width: 1040px; padding-top: 8px; }
.masthead { padding: 8px 4px 12px; }
.brand-lockup { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.brand-lockup .eyebrow { margin: 0; font-size: .6rem; letter-spacing: .13em; }
.brand-lockup h1 { font-size: 1.8rem; line-height: 1; }
.brand-lockup .tagline { margin: 0; font-size: .6rem; }
.briefing { padding: 14px 4px; gap: 16px; }
.briefing .chapter { margin-bottom: 5px; font-size: .6rem; letter-spacing: .15em; }
.briefing h2 { font-size: 1.6rem; line-height: 1.1; }
.briefing h2::after { display: none; }
.briefing p:last-child { font-size: .76rem; margin-top: 5px; line-height: 1.4; }
.weather { min-width: 150px; padding: 0; font-size: .8rem; }
.weather-mark { font-size: 1.4rem; }
.instrument-panel { grid-template-columns: .7fr .7fr 1.3fr 1fr; }
.instrument { padding: 8px 14px; }
.instrument strong { font-size: 1.15rem; }
.instrument small { font-size: .65rem; }
.board-wrap { padding: 10px 8px 16px; overflow-x: auto; }
.endpoint-guide { max-width: 680px; margin-bottom: 10px; font-size: 0; }
.endpoint-guide b { font-size: .7rem; margin: 0; }
.river-stage { --pool-gutter: 72px; max-width: min(820px, max(440px, calc(100svh - 220px))); min-width: calc(var(--board-size, 6) * 38px + 2 * var(--pool-gutter) + 12px); }
.endpoint-pool { width: 54px; height: 59px; }
.pool-connector { width: 30px; }
.spring-pool .pool-connector { left: 46px; }
.downstream-pool .pool-connector { right: 46px; }
.controls, body.panel-open .controls { position: static; margin-top: 0; padding: 10px; border-radius: 0 0 14px 14px; flex-wrap: wrap; }
.controls .button { min-height: 44px; padding: 9px 16px; font-size: .8rem; }
.message { margin-top: 12px; padding: 12px 16px; }
.message strong { font-size: .9rem; }
.message span { font-size: .76rem; }
.extras-dock { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line); }
.extras-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.extras-heading h2 { margin: 0; font-size: 1.6rem; }
.extras-heading p { margin: 0; color: var(--muted); font-size: .78rem; }
.extras-dock .mast-actions { flex-wrap: wrap; margin-bottom: 16px; }
.extras-dock .icon-button { min-height: 44px; }
.extras-dock .family-promise { margin: 0 0 18px; }
.extras-dock .family-promise-copy { padding: 14px 18px; }
.extras-dock .family-promise-copy strong { font-size: 1rem; }
.extras-dock .coin-wallet { padding: 12px 18px; }
@media (max-width: 760px) {
  .game-shell { padding-top: 6px; }
  .masthead { flex-direction: row; }
  .brand-lockup { gap: 6px 12px; }
  .brand-lockup .eyebrow { flex-basis: 100%; font-size: .55rem; }
  .brand-lockup h1 { font-size: 1.45rem; }
  .briefing { flex-direction: row; padding: 12px 4px; }
  .briefing h2 { font-size: 1.4rem; }
  .weather { display: none; }
  .instrument-panel { grid-template-columns: 1fr 1fr; }
  .instrument { padding: 6px 10px; }
  .instrument strong { font-size: 1rem; }
  .board-wrap { padding: 10px 4px 14px; }
  .river-stage { --pool-gutter: 44px; min-width: calc(var(--board-size, 6) * 36px + 2 * var(--pool-gutter) + 8px); }
  .endpoint-pool { width: 34px; height: 40px; }
  .pool-name { font-size: .5rem; }
  .pool-connector { width: 22px; height: 12px; line-height: 9px; font-size: 16px; }
  .spring-pool .pool-connector { left: 27px; }
  .downstream-pool .pool-connector { right: 27px; }
  .controls { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; padding: 8px; }
  .controls .flow-button { width: auto; }
  .controls .button { padding-inline: 6px; }
  .extras-heading { display: block; }
  .extras-heading p { margin-top: 6px; }
}