/* GO ARENA v7 — visual-only dashboard redesign; gameplay selectors retained. */
:root{--arena-ink:#12283e;--arena-muted:#728298;--arena-line:#e6ebf1;--arena-accent:#087b79;--arena-deep:#0d2835;--arena-surface:#fff;font-family:Inter,'Noto Sans Thai',system-ui,-apple-system,'Segoe UI',sans-serif}
body{color:var(--arena-ink);background:radial-gradient(circle at 92% 8%,#d7f5ef80 0,transparent 30%),linear-gradient(160deg,#f4f8fa,#eff3f7 65%,#f7f9fb)}
.arenaHeader{position:relative;z-index:3;padding:0 24px;background:#ffffffec;backdrop-filter:blur(16px);border-bottom:1px solid #e3eaf0;box-shadow:0 2px 20px #11303d08}
.arenaHeaderInner{width:min(1370px,100%);margin:auto;min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brandLink{display:flex;align-items:center;gap:12px;color:var(--arena-deep);text-decoration:none}.brandMark{width:46px;height:46px;border-radius:14px;background:#103440;box-shadow:0 6px 14px #14394823;color:#fff;display:flex;align-items:center;justify-content:center;position:relative;font-size:29px;line-height:1}.brandMark span{font-size:21px;margin-left:-10px;color:#b2e3d8}.brandName{display:flex;flex-direction:column;gap:1px}.brandName strong{font-size:20px;letter-spacing:-.04em}.brandName small{font-size:10px;letter-spacing:.14em;color:#788c98;font-weight:700}
.arenaNav{display:flex;gap:7px;align-items:center}.arenaNav a{padding:11px 17px;border-radius:11px;font-weight:700;text-decoration:none;color:#698091;font-size:13px}.arenaNav a:hover,.arenaNav .navCurrent{background:#e9f6f3;color:#08786f}
#account{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}#account button{min-height:38px}
.arenaMain{max-width:1320px;margin:0 auto;padding:30px 24px 74px}.arenaIntro{background:linear-gradient(118deg,#12343d,#174b50 60%,#116458);border-radius:26px;min-height:177px;padding:31px clamp(24px,3.5vw,52px);color:white;display:flex;align-items:center;justify-content:space-between;gap:16px;overflow:hidden;position:relative;box-shadow:0 18px 34px #133c4224;margin-bottom:22px}.arenaIntro:after{content:'';position:absolute;width:450px;height:450px;border:1px solid #ffffff15;border-radius:50%;right:-170px;top:-170px;box-shadow:0 0 0 70px #ffffff07,0 0 0 140px #ffffff05}.arenaIntro h1{color:white;font-size:clamp(24px,3.1vw,41px);margin:7px 0 6px;letter-spacing:-.04em}.arenaIntro h1 span{color:#a9ead5;margin-left:.25em}.arenaIntro p{margin:0;color:#d0e6e3;font-size:14px}.eyebrow{font-size:10px;font-weight:800;letter-spacing:.19em;color:#c4eee0}.liveDot{display:inline-block;width:8px;height:8px;background:#6fe0a7;border-radius:50%;margin-right:8px;box-shadow:0 0 0 4px #76e3aa2b}.introSymbol{display:flex;align-items:center;transform:rotate(-13deg);gap:0;padding-right:45px;z-index:1}.introSymbol span{width:88px;height:88px;display:grid;place-items:center;background:#071e24;border-radius:50%;font-size:91px;color:#0a1f24;text-shadow:0 2px 4px #0008;box-shadow:inset -10px -9px 14px #0006,0 11px 19px #06171946}.introSymbol span+span{background:#f5f7ef;color:#fafbf6;margin-left:-19px;box-shadow:inset -6px -7px 13px #9caaa5,0 11px 19px #06171946}
.panel{border:1px solid #e2e9ed;border-radius:24px;box-shadow:0 13px 38px #173d480d;padding:clamp(20px,2.4vw,34px)}.sectionKicker{font-size:11px;letter-spacing:.17em;font-weight:900;color:#16867c;margin-bottom:8px}.sectionHeading{display:flex;align-items:center;justify-content:space-between;gap:16px}.sectionHeading h1{font-size:clamp(24px,2.4vw,33px);letter-spacing:-.04em}.sectionHeading p{margin:5px 0 0}.profileShortcut{display:inline-flex;align-items:center;white-space:nowrap;text-decoration:none;background:#e8f6f2;padding:11px 15px;border-radius:12px;color:#087c70;font-weight:800;font-size:13px}
.nicknameCard{margin:25px 0 30px;background:linear-gradient(125deg,#f0f9f7,#f6fafc)!important;border-color:#cfebe3!important;position:relative;overflow:hidden}.profileOrnament{position:absolute;right:18%;top:-37px;font-size:140px;color:#1b967914;pointer-events:none}.nicknameCard>*:not(.profileOrnament){position:relative;z-index:1}.nicknameCard strong{color:#114e52}
.sectionStrip{display:flex;align-items:center;gap:10px;margin:24px 0 14px;font-size:15px}.sectionStrip>span{display:grid;place-items:center;width:33px;height:33px;background:#e7f5f1;border-radius:10px;color:#128275;font-size:17px}.sectionStrip strong{font-size:17px;letter-spacing:-.025em}.sectionStrip small{margin-left:auto;font-size:11px;letter-spacing:.04em}
.settingsGrid{margin-top:0;gap:14px}.settingsGrid label{background:#f7fafb;border-color:#e3eced;border-radius:15px;padding:14px 16px}.settingsGrid select{margin-top:3px;min-height:48px;border-color:#d5e4e4;border-radius:11px}
.modeGrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:12px 0 32px}.mode{min-height:205px;text-align:left;position:relative;isolation:isolate;overflow:hidden;background:#f2faf6;border:1px solid #d2e9df;border-radius:19px;padding:21px 20px;transition:transform .18s,box-shadow .18s,border-color .18s}.mode:before{content:'';position:absolute;width:170px;height:170px;border-radius:50%;right:-100px;bottom:-100px;background:#0e896b0d;z-index:-1}.mode:hover{transform:translateY(-4px);box-shadow:0 14px 28px #123a4c17;filter:none;border-color:#7ccdb6}.mode:focus-visible{outline:3px solid #12a48e;outline-offset:2px}.mode .emoji{font-size:37px;line-height:1.3;margin:12px 0 5px}.mode strong{font-size:18px;line-height:1.35}.mode small{font-size:12px;line-height:1.6;color:#667f84;padding-right:14px}.modeTag{align-self:flex-start;font-size:10px;letter-spacing:.13em;font-weight:900;color:#13816c;background:#dcefe6;padding:5px 9px;border-radius:7px}.modeArrow{position:absolute;right:17px;top:17px;font-size:20px;color:#2e8374}.modeAi{background:#f0f6ff;border-color:#dce7fa}.modeAi .modeTag{color:#325da4;background:#e0eaff}.modeLocal{background:#f7f5ff;border-color:#e7e1f8}.modeLocal .modeTag{color:#7151a2;background:#ece5f8}.modeScenario{background:#fff8ee;border-color:#f1e4d3}.modeScenario .modeTag{color:#ad6a18;background:#fff0d7}.modeReal{background:#fdf4f3;border-color:#f1deda}.modeReal .modeTag{color:#a64a48;background:#fbe7e5}
.rankHeading{border-top:1px solid #e8eef0;padding-top:24px}.rankingScroll{border:1px solid #e4edf0;border-radius:16px;overflow:auto}.rankingTable th{background:#f1f7f7;color:#456773;font-size:12px}.rankingTable td{font-size:14px}.rankingTable th,.rankingTable td{padding:15px 13px}.rankingTable td:last-child{color:#087b79}.historyItem{border-bottom:1px solid #eaf0f1;padding:14px 12px}
button.primary,.primary{background:linear-gradient(110deg,#128b7c,#087166);color:white;box-shadow:0 4px 10px #0b8b7822}.tabs .active{background:#117b73;color:white}.auth{max-width:500px;padding:clamp(24px,4vw,42px)}.auth h1{font-size:29px}.auth .tabs{background:#f0f5f6;padding:5px;border-radius:15px;gap:3px}.auth .tabs button{border-radius:11px}.auth input,.auth select{border-color:#d5e2e6;min-height:47px}
/* Focus the active experience on the board. Keep existing IDs for JS handlers. */
.playPanel{background:#fff;border-color:#deeaeb}.playPanel .gameTop{border-bottom:1px solid #e7efef;padding-bottom:17px}.playPanel .gameTop h1{font-size:clamp(22px,2.25vw,30px)}.playPanel .gameLayout{grid-template-columns:minmax(0,1.55fr) minmax(250px,.75fr);gap:22px}.playPanel .boardOuter{background:linear-gradient(135deg,#a97741,#f4d5a2 35%,#b8874e)!important;border:1px solid #bb8c58;border-radius:18px;box-shadow:0 15px 40px #734b2038}.playPanel aside{background:#fafdfe;border:1px solid #e1eaed;border-radius:18px;box-shadow:0 8px 24px #1b4f5809}.playPanel .turnCard{background:#eef8f5;border:1px solid #e0eeeb}.playPanel .stats{gap:10px}.playPanel .stats div{color:#57727b}.fullscreenBtn{background:#153c48;color:white}.fullscreenBtn:hover{background:#0d6264}.courseLesson.selected{background:#0b8477!important;border-color:#0b8477!important}.courseMeter span{background:linear-gradient(90deg,#0d887c,#57c8a2)}.courseTask{background:#eff8f6;border-left-color:#148a78}.trainingFeedback{background:#eff8fa;color:#175c63}.courseBadge{background:#e2f5ee;color:#126d5b}
/* Fullscreen must keep the board and critical controls in the viewport. */
.playPanel:fullscreen,.playPanel.pseudoFullscreen{background:#f5faf9!important}.playPanel:fullscreen .boardOuter,.playPanel.pseudoFullscreen .boardOuter{max-height:100%;box-shadow:0 4px 15px #734b202b}
@media(max-width:1000px){.arenaNav{gap:0}.arenaNav a{padding:9px}.modeGrid{grid-template-columns:repeat(2,minmax(0,1fr))}.playPanel .gameLayout{grid-template-columns:1fr}.playPanel .boardOuter{max-width:680px}}
@media(max-width:680px){.arenaHeader{padding:0 12px}.arenaHeaderInner{min-height:65px;gap:7px;flex-wrap:wrap;padding:8px 0}.brandMark{width:38px;height:38px}.brandName strong{font-size:18px}.brandName small{font-size:8px}.arenaNav{order:3;width:100%;justify-content:space-around;border-top:1px solid #edf1f2;padding-top:3px}.arenaNav a{font-size:12px}.arenaMain{padding:13px 10px 50px}.arenaIntro{min-height:137px;border-radius:18px;padding:24px 18px;margin-bottom:12px}.arenaIntro h1{font-size:26px}.arenaIntro p{font-size:12px;max-width:270px}.introSymbol{padding-right:0;opacity:.3;position:absolute;right:0}.introSymbol span{width:65px;height:65px;font-size:67px}.sectionHeading{align-items:start;flex-direction:column}.profileShortcut{width:100%;justify-content:center}.modeGrid{grid-template-columns:1fr 1fr;gap:10px}.mode{min-height:185px;padding:14px;border-radius:14px}.mode strong{font-size:15px}.mode small{font-size:11px}.mode .emoji{font-size:29px;margin:6px 0}.modeTag{font-size:9px}.modeArrow{top:11px;right:12px}.sectionStrip small{display:none}.panel{border-radius:17px}.playPanel .gameTop{flex-wrap:wrap}.playPanel .gameTopActions{width:100%}.playPanel .gameTopActions button{flex:1}.playPanel .boardOuter{padding:7px}}
@media(max-width:390px){.modeGrid{grid-template-columns:1fr}.mode{min-height:142px}.mode .emoji{margin:0}.arenaIntro h1{font-size:22px}}
@media(prefers-reduced-motion:reduce){.mode{transition:none}}