/* ELCHATEA_TWENTYONE_V1: scoped presentation, no remote assets. */
.ec-21-board,.ec-21-entry{box-sizing:border-box;color:#24475f;font:14px/1.4 'Segoe UI',Arial,sans-serif;min-width:0;overflow-anchor:none}
#elchateaGamePanel.twentyone-panel #elchateaGameBoard{display:block}
.ec-21-hands{display:grid;gap:10px}
.ec-21-seat{padding:10px;border:1px solid #bfd2df;border-radius:10px;background:#edf5f8;min-width:0}
.ec-21-seat-title{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-bottom:8px}
.ec-21-total{font-weight:700;color:#285b80;font-size:13px}
.ec-21-hand{display:flex;flex-wrap:wrap;gap:5px;justify-content:center;align-items:center}
.ec-21-card{box-sizing:border-box;width:54px;height:76px;border:1px solid #9aafbd;border-radius:7px;background:#fffefa;box-shadow:0 2px 3px #193c5418;color:#16374b;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.1;flex:none}
.ec-21-card strong{font-size:22px}.ec-21-card span{font-size:28px}.ec-21-card.red{color:#b73542}
.ec-21-card.back{background:repeating-linear-gradient(45deg,#336699,#336699 5px,#457bab 5px,#457bab 8px);border:3px solid #fffefa;color:#fff;font-size:30px}
.ec-21-button{font:600 13px/1.25 'Segoe UI',Arial,sans-serif;min-height:44px;padding:8px 12px;border:1px solid #b8cbd9;border-radius:7px;background:#fff;color:#285b80;cursor:pointer;touch-action:manipulation}
.ec-21-button.primary{background:#336699;color:#fff;border-color:#336699}.ec-21-button:disabled{opacity:.45;cursor:default}.ec-21-button:focus-visible{outline:3px solid #db982e;outline-offset:2px}
.ec-21-actions{display:flex;gap:6px;margin:8px 0;flex-wrap:wrap}.ec-21-actions>.ec-21-button{flex:1;min-width:100px}
.ec-21-note{font-size:13px;margin:8px 0;min-height:18px}.ec-21-footer{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:11px;color:#567080}.ec-21-footer button{font-size:12px}
.ec-21-entry{border:1px solid #c9dbe8;background:#f6f9fc;border-radius:9px;padding:14px;margin:0 0 14px}.ec-21-entry strong{font-size:17px}.ec-21-entry p{font-size:13px;margin:6px 0 11px}
.ec-21-solo-head{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-bottom:8px}.ec-21-solo-status{font-weight:700;margin:6px 0 10px;color:#285b80}
#ecTwentyOneSoloRoot{margin-bottom:12px;overflow-anchor:none}
#ecDominoSoloRoot.ec-dom-playing~#ecTwentyOneSoloRoot{display:none}
.ec-21-help{box-sizing:border-box;max-width:min(560px,calc(100vw - 24px));max-height:calc(100dvh - 24px);padding:18px;border:1px solid #739db8;border-radius:10px;background:#fff;color:#24475f;font:16px/1.5 'Segoe UI',Arial,sans-serif;overflow:auto}
.ec-21-help::backdrop{background:#102b40b3}.ec-21-help h3{margin-top:0}
@media(max-width:760px),(pointer:coarse) and (max-width:1100px){
 #elchateaGamePanel.twentyone-panel,#ecTwentyOneSoloRoot.ec-21-playing{box-sizing:border-box;position:fixed!important;inset:0!important;transform:none!important;width:100%!important;height:100dvh!important;max-height:none!important;margin:0!important;border:0;border-radius:0;background:#fff;display:flex;flex-direction:column;overflow:hidden;padding:env(safe-area-inset-top,0px) env(safe-area-inset-right,0px) env(safe-area-inset-bottom,0px) env(safe-area-inset-left,0px)}
 #ecTwentyOneSoloRoot.ec-21-playing{z-index:10145}
 #elchateaGamePanel.twentyone-panel .elchatea-game-panel-header{padding:4px 8px;flex:none}
 #elchateaGamePanel.twentyone-panel .elchatea-game-panel-header button{width:44px;height:44px}
 #elchateaGamePanel.twentyone-panel .elchatea-game-meta{padding:3px 8px;flex:none}
 #elchateaGamePanel.twentyone-panel .elchatea-game-actions{padding:4px 6px;gap:4px;flex-wrap:nowrap;flex:none}
 #elchateaGamePanel.twentyone-panel .elchatea-game-actions button{min-height:44px;min-width:0;padding:4px;font-size:12px}
 #elchateaGamePanel.twentyone-panel #elchateaGameBoard,#ecTwentyOneSoloRoot.ec-21-playing>.ec-21-board{flex:1;min-height:0;overflow:auto;padding:6px 8px;display:flex;flex-direction:column}
 #ecTwentyOneSoloRoot.ec-21-playing>.ec-21-solo-head{padding:4px 8px;background:#336699;color:#fff;flex:none;margin:0;font-size:13px}
 #ecTwentyOneSoloRoot.ec-21-playing>.ec-21-solo-status{padding:3px 8px;margin:0;flex:none;font-size:13px}
 #ecTwentyOneSoloRoot.ec-21-playing>.ec-21-actions{padding:4px 6px;margin:0;flex:none}
 .ec-21-hands{flex:1;align-content:center;gap:6px}.ec-21-seat{padding:6px}.ec-21-seat-title{margin-bottom:5px;font-size:13px}
 .ec-21-card{width:44px;height:60px}.ec-21-card strong{font-size:19px}.ec-21-card span{font-size:23px}.ec-21-hand{gap:4px}
 .ec-21-board>.ec-21-actions{flex:none;margin:4px 0}.ec-21-note{font-size:12px;margin:4px 0}.ec-21-footer{flex:none}
}
@media(max-height:500px) and (min-width:500px){.twentyone-panel .ec-21-hands,#ecTwentyOneSoloRoot.ec-21-playing .ec-21-hands{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* ELCHATEA_TWENTYONE_MOBILE_V2: larger, centered multiplayer hands. */
@media(max-width:760px),(pointer:coarse) and (max-width:1100px){
 #elchateaGamePanel.twentyone-panel #elchateaGameBoard{
  align-items:stretch;justify-content:flex-start;width:100%;box-sizing:border-box;
 }
 #elchateaGamePanel.twentyone-panel .ec-21-hands{
  width:100%;max-width:800px;align-self:center;box-sizing:border-box;gap:12px;
 }
 #elchateaGamePanel.twentyone-panel .ec-21-seat{
  box-sizing:border-box;width:100%;padding:10px 8px;
 }
 #elchateaGamePanel.twentyone-panel .ec-21-seat-title{
  justify-content:center;flex-wrap:wrap;text-align:center;gap:6px 14px;font-size:15px;margin-bottom:10px;
 }
 #elchateaGamePanel.twentyone-panel .ec-21-total{font-size:14px}
 #elchateaGamePanel.twentyone-panel .ec-21-hand{
  width:100%;justify-content:center;align-items:center;gap:7px;min-width:0;
 }
 #elchateaGamePanel.twentyone-panel .ec-21-card{
  width:clamp(60px,17vw,76px);height:clamp(84px,23.8vw,106px);border-radius:9px;
 }
 #elchateaGamePanel.twentyone-panel .ec-21-card strong{font-size:28px}
 #elchateaGamePanel.twentyone-panel .ec-21-card span{font-size:34px}
 #elchateaGamePanel.twentyone-panel .ec-21-card.back{font-size:36px}
 #elchateaGamePanel.twentyone-panel .ec-21-note{text-align:center}
}
@media(max-height:500px) and (min-width:500px) and (max-width:1100px){
 #elchateaGamePanel.twentyone-panel .ec-21-hands{gap:8px}
 #elchateaGamePanel.twentyone-panel .ec-21-seat{padding:6px}
 #elchateaGamePanel.twentyone-panel .ec-21-seat-title{margin-bottom:6px;font-size:13px}
 #elchateaGamePanel.twentyone-panel .ec-21-card{width:60px;height:84px}
}

/* ELCHATEA_TWENTYONE_CPU_V3: spacious computer-game card area. */
#ecTwentyOneSoloRoot.ec-21-playing{width:100%;min-width:0;box-sizing:border-box}
#ecTwentyOneSoloRoot.ec-21-playing>.ec-21-board{
 width:100%;max-width:none;box-sizing:border-box;align-items:stretch;
}
#ecTwentyOneSoloRoot.ec-21-playing .ec-21-hands{
 width:100%;box-sizing:border-box;gap:12px;align-self:stretch;
}
#ecTwentyOneSoloRoot.ec-21-playing .ec-21-seat{
 width:100%;box-sizing:border-box;min-height:160px;padding:12px;
 display:flex;flex-direction:column;justify-content:center;
}
#ecTwentyOneSoloRoot.ec-21-playing .ec-21-seat-title{
 justify-content:center;flex-wrap:wrap;gap:6px 14px;text-align:center;font-size:15px;margin-bottom:12px;
}
#ecTwentyOneSoloRoot.ec-21-playing .ec-21-total{font-size:14px}
#ecTwentyOneSoloRoot.ec-21-playing .ec-21-hand{
 width:100%;min-width:0;justify-content:center;align-items:center;gap:8px;
}
#ecTwentyOneSoloRoot.ec-21-playing .ec-21-card{width:66px;height:92px;border-radius:9px}
#ecTwentyOneSoloRoot.ec-21-playing .ec-21-card strong{font-size:28px}
#ecTwentyOneSoloRoot.ec-21-playing .ec-21-card span{font-size:34px}
#ecTwentyOneSoloRoot.ec-21-playing .ec-21-card.back{font-size:36px}
#ecTwentyOneSoloRoot.ec-21-playing .ec-21-note{text-align:center}
@media(max-width:760px),(pointer:coarse) and (max-width:1100px){
 #ecTwentyOneSoloRoot.ec-21-playing .ec-21-seat{min-height:clamp(144px,24dvh,210px);padding:10px 8px}
 #ecTwentyOneSoloRoot.ec-21-playing .ec-21-card{width:clamp(60px,17vw,76px);height:clamp(84px,23.8vw,106px)}
}
@media(max-height:500px) and (min-width:500px){
 #ecTwentyOneSoloRoot.ec-21-playing .ec-21-hands{gap:8px}
 #ecTwentyOneSoloRoot.ec-21-playing .ec-21-seat{min-height:128px;padding:6px}
 #ecTwentyOneSoloRoot.ec-21-playing .ec-21-seat-title{font-size:13px;margin-bottom:6px}
 #ecTwentyOneSoloRoot.ec-21-playing .ec-21-card{width:60px;height:84px}
}