.arena-app{min-height:100vh;background:radial-gradient(ellipse at 80% 0%,#19201b66,transparent 45%),#090d0e;color:#e4e8df}
.arena-top{height:80px;border-bottom:1px solid #26322b;display:flex;align-items:center;gap:48px;padding:0 42px}.arena-top .brand{gap:5px}.arena-prism{color:#d2bc88;font-size:40px;font-weight:300;margin-right:10px}.arena-nav{font-size:10px;letter-spacing:2px;color:#d2bc88}.arena-connection{margin-left:auto;color:#91b6a5;font-size:11px}.arena-connection.offline{color:#c8a878}
.arena-main{max-width:1580px;margin:0 auto;padding:44px 42px 22px}.arena-intro{display:flex;justify-content:space-between;gap:30px;align-items:center;margin-bottom:30px}.arena-intro .eyebrow{margin:0 0 15px;color:#c0ae84}.arena-intro h1{font-size:clamp(26px,3vw,43px);font-weight:430;letter-spacing:-1.6px}.arena-intro p:not(.eyebrow){color:#91a198;margin:15px 0 0;font-size:13px}.arena-tag{font:9px var(--mono);letter-spacing:1.2px;border-left:1px solid #655d45;padding-left:20px;color:#cfbd91;white-space:nowrap}.arena-tag small{display:block;font:11px var(--font);letter-spacing:0;color:#9fa69a;margin-top:9px}
.arena-steps{display:flex;gap:40px;border-bottom:1px solid #27332d;padding-bottom:19px;margin-bottom:23px;color:#778980;font-size:12px}.arena-steps b{font:11px var(--mono);margin-right:9px}.arena-steps .current{color:#ddc893}
.arena-workspace{display:grid;grid-template-columns:minmax(0,1fr) 315px;gap:23px;align-items:stretch}.arena-chart-card{min-width:0;background:#0b1111;border:1px solid #27322d;border-radius:10px;overflow:hidden}.arena-chart-head{display:flex;justify-content:space-between;gap:12px;padding:18px 20px;border-bottom:1px solid #222e28;align-items:center}.arena-chart-head strong{font-size:15px;font-weight:500}.arena-chart-head span{font-size:10px;color:#8d9e93;margin-left:13px}.arena-chart-actions{display:flex;gap:5px}.arena-chart-actions button{border:1px solid #344038;border-radius:4px;padding:5px 9px;color:#b7c2b5;font-size:11px}.arena-chart-actions button:hover{background:#26352a}.arena-ohlc{display:flex;gap:13px;align-items:center;min-height:37px;padding:8px 19px;font:9px var(--mono);color:#8b9c91;flex-wrap:wrap}.arena-ohlc #candle-time{color:#c7b687;margin-right:auto}.arena-ohlc b{font-weight:400;color:#b9c8bd}
.arena-chart-wrap{position:relative;height:400px;min-width:0}.arena-chart-wrap #chart-stage{position:absolute;inset:0;width:100%;height:100%;min-height:0;overflow:hidden;touch-action:none;outline-offset:-3px}.arena-chart-wrap canvas{position:absolute;inset:0;width:100%;height:100%;display:block}.arena-chart-wrap #gpu-chart{pointer-events:none}.arena-chart-wrap #chart-overlay{touch-action:none}.arena-hidden{visibility:hidden}.arena-empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:25px;background:linear-gradient(145deg,#101916,#0a1010);pointer-events:none}.arena-empty>span{font-size:60px;color:#d2bc8877;font-weight:300}.arena-empty h2{font-size:20px;font-weight:400;margin:14px 0}.arena-empty p{color:#82968a;line-height:1.7;max-width:285px;margin:0}.arena-chart-foot{min-height:39px;border-top:1px solid #222e28;display:flex;gap:12px;justify-content:space-between;align-items:center;padding:11px 17px;font-size:9px;color:#81978a}.arena-chart-foot #engine-label{color:#b2ac8b;white-space:nowrap}
.arena-decision{background:#121a16;border:1px solid #344132;border-radius:10px;padding:24px;min-width:0}.arena-decision>.eyebrow{color:#acbd9b;font-size:9px;line-height:1.6;margin:0 0 16px}.arena-app h2{font-size:22px;letter-spacing:-.5px;font-weight:450;line-height:1.3;margin:0 0 14px}.arena-muted{font-size:11px;color:#91a28f;line-height:1.7;margin:12px 0}.arena-horizons,.arena-directions{display:flex;gap:8px;margin:22px 0}.arena-horizons button,.arena-directions button{flex:1;border:1px solid #3a493a;padding:11px 5px;border-radius:5px;font-size:11px;color:#b0bdad}.arena-horizons .chosen,.arena-directions .chosen{background:#38432b;color:#ecdbb1;border-color:#8b8153}.arena-primary{display:block;width:100%;border-radius:5px;background:#d2bc88;color:#1e251a;padding:13px 10px;font-weight:600;font-size:12px;margin:18px 0 12px;text-align:center}.arena-primary:hover{background:#e3cd9a;color:#192013}.arena-primary:disabled{cursor:default}.arena-confidence{display:flex;align-items:center;justify-content:space-between;margin:24px 0 12px;font-size:11px;color:#c1c9b7}.arena-confidence strong{font:32px var(--mono);color:#e1c997;letter-spacing:-1.3px}.arena-confidence small{font-size:14px}.arena-decision input[type=range]{width:100%;accent-color:#d2bc88;height:5px;margin:10px 0 13px;cursor:pointer}.arena-range-labels{display:flex;justify-content:space-between;color:#7f947e;font-size:9px}.arena-comment-label{display:block;font-size:10px;color:#acbaa1;margin:23px 0 9px}.arena-decision textarea{resize:vertical;min-height:65px;width:100%;background:#0c140f;color:#d9dfcc;border:1px solid #3b4837;border-radius:5px;padding:10px;font:11px var(--font);line-height:1.5}.arena-decision textarea:focus-visible{outline:2px solid #d2bc88;outline-offset:2px}.arena-decision>small{display:block;font-size:9px;line-height:1.7}.arena-text-button{width:100%;color:#81957d;margin-top:13px;padding:8px 0;font-size:9px}.arena-sealed{display:inline-block;color:#a9c89f;border:1px solid #506144;border-radius:4px;padding:6px 9px;margin:5px 0 24px;font-size:10px}.arena-result{border-top:1px solid #3d4934;margin-top:24px;padding-top:23px}.arena-result .eyebrow{font-size:8px;margin:0 0 8px;color:#91a282}.arena-return{font:35px var(--mono);letter-spacing:-1.3px;color:#e4d0a3}.arena-result>p:not(.eyebrow){font-size:10px;color:#a9b99d;line-height:1.6}.arena-score{display:flex;justify-content:space-between;gap:14px;margin:22px 0 14px}.arena-score>span{font-size:9px;color:#95a688}.arena-score strong{display:block;font:24px var(--mono);color:#ced9ba;margin-top:8px}.arena-result>small{font-size:9px;line-height:1.7;color:#859b7c;display:block}.arena-error{color:#f0af91;font-size:11px;line-height:1.7}
.arena-review{display:grid;grid-template-columns:minmax(0,1fr) 370px;gap:44px;margin-top:42px;padding-top:8px}.arena-review .eyebrow{font-size:8px;color:#92a186;margin:0 0 12px}.arena-section-head{display:flex;align-items:center;justify-content:space-between;gap:15px;border-bottom:1px solid #2b382d;padding-bottom:10px}.arena-section-head>span{font:10px var(--mono);color:#829278}.arena-section-head h2{margin-bottom:8px}.arena-journal-row{display:flex;align-items:center;gap:20px;padding:17px 0;border-bottom:1px solid #233025}.arena-journal-horizon{font:12px var(--mono);color:#c7b991;min-width:52px}.arena-journal-row strong{font-size:12px;font-weight:400;color:#c6d1bb}.arena-journal-row small{display:block;font-size:9px;color:#7e9579;margin-top:7px}.arena-journal-score{margin-left:auto;font:15px var(--mono);color:#bdcba9;text-align:right}.arena-journal-score small{font:8px var(--font)}.arena-pages{display:flex;justify-content:space-between;margin-top:14px;gap:10px}.arena-pages button{font-size:10px;color:#a3ad8d;padding:8px 0}.arena-pages button:disabled{cursor:default}.arena-calibration{border-left:1px solid #2c392c;padding-left:32px}.arena-calibration .arena-muted{font-size:10px;line-height:1.7}.arena-calibration-plot{width:100%;max-height:160px;margin:10px 0}.arena-calibration-plot text{fill:#7d9077;font:9px var(--font)}.arena-calibration-stats{display:flex;gap:10px;justify-content:space-between;font-size:9px;color:#9aaa8e}.arena-calibration-stats strong{font-weight:500;color:#cfbd8d}.arena-caution{font-size:9px;color:#788e74;line-height:1.7;border-top:1px solid #2c392a;margin-top:19px;padding-top:13px}.arena-footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #27322a;margin-top:33px;padding:19px 0 0;font-size:9px;color:#73876f;line-height:1.7}
@media(min-width:1450px){.arena-chart-wrap{height:470px}.arena-workspace{grid-template-columns:minmax(0,1fr) 330px}}
@media(max-width:1000px){.arena-main{padding:30px 24px 20px}.arena-top{padding:0 24px;gap:25px}.arena-workspace{grid-template-columns:minmax(0,1fr) 280px;gap:15px}.arena-decision{padding:19px}.arena-review{grid-template-columns:minmax(0,1fr) 300px;gap:24px}.arena-calibration{padding-left:22px}.arena-tag{display:none}.arena-chart-head{padding:15px 12px}.arena-chart-head span{display:block;margin:6px 0 0}}
@media(max-width:740px){.arena-top{height:68px;padding:0 18px;gap:20px;flex-wrap:wrap}.arena-top .brand{font-size:25px}.arena-prism{font-size:31px}.arena-nav{font-size:8px;margin-left:auto}.arena-connection{display:none}.arena-main{padding:26px 15px 18px}.arena-intro{margin-bottom:26px}.arena-intro h1{font-size:30px;line-height:1.15;letter-spacing:-1px}.arena-intro p:not(.eyebrow){font-size:11px;line-height:1.7}.arena-steps{gap:17px;justify-content:space-between;font-size:10px;margin-bottom:17px}.arena-steps b{font-size:9px;margin-right:2px}.arena-workspace,.arena-review{grid-template-columns:minmax(0,1fr);gap:18px}.arena-chart-wrap{height:310px}.arena-chart-actions button{padding:5px 7px;font-size:10px}.arena-chart-foot{font-size:8px;padding:10px}.arena-ohlc{font-size:8px;padding:10px;gap:9px}.arena-decision{padding:23px}.arena-decision h2{font-size:23px}.arena-review{margin-top:30px;gap:30px}.arena-calibration{border-left:0;border-top:1px solid #2c392c;padding:25px 0 0}.arena-calibration-plot{max-height:180px}.arena-footer{flex-direction:column;gap:7px;font-size:8px}.arena-horizons{margin:16px 0}.arena-primary{padding:15px}.arena-empty h2{font-size:18px}.arena-empty p{font-size:11px}}

.arena-score-help{margin-top:15px;font-size:10px;color:#a6b58f;line-height:1.7}.arena-score-help summary{cursor:pointer;color:#c4b282}.arena-score-help p{font-size:9px;margin:9px 0}

/* Édition 21-22 : régime du préfixe, manches indépendantes et carte de score publique. */
.arena-regime{margin:.6rem 0 0;font-size:.85rem;color:#b9c2b4}
.arena-share{margin-top:1rem;display:grid;gap:.6rem}
.arena-share-links{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center}
.arena-share-links a{text-decoration:none}
#arena-independent{margin:.4rem 0 0;font-size:.85rem}
/* Édition 23 : outils de la manche (préfixe seulement), figés avec la prévision. */
.arena-tools{display:flex;flex-wrap:wrap;gap:8px 10px;align-items:center;padding:8px 14px;border-bottom:1px solid #22302b;min-width:0}
.arena-tool-group{display:flex;gap:3px;align-items:center;min-width:0}
.arena-tools button{min-width:30px;height:28px;padding:0 8px;border:1px solid #33433c;border-radius:6px;background:#101a16;color:#c9c4b0;font-size:12px;cursor:pointer}
.arena-tools button.chosen{border-color:#d2bc88;color:#14110a;background:#d2bc88}
.arena-tools button:disabled{opacity:.38;cursor:default}
.arena-indicator-add select,.arena-indicator-add input{height:28px;border:1px solid #33433c;border-radius:6px;background:#101a16;color:#d6d0bd;font-size:12px;padding:0 6px;min-width:0}
.arena-indicator-add input{width:64px}
.arena-chips{display:flex;flex-wrap:wrap;gap:5px;min-width:0}
.arena-chip{display:inline-flex;align-items:center;gap:4px;padding:2px 3px 2px 8px;border-radius:999px;border:1px solid #33433c;font-size:11px;color:#d6d0bd}
.arena-chip.amber{border-color:#9d8a5c}.arena-chip.blue{border-color:#4f7fa8}.arena-chip.mint{border-color:#4f9c80}.arena-chip.coral{border-color:#b0685a}.arena-chip.violet{border-color:#7d68a8}
.arena-chip button{min-width:20px;height:20px;padding:0;border:0;background:none;color:#b8b29c}
.arena-tool-error{flex-basis:100%;font-size:11px;color:#e8b39d}
@media(max-width:600px){.arena-tools{padding:8px 10px;gap:6px}.arena-tools button{min-width:28px;height:30px;padding:0 6px}.arena-indicator-add input{width:56px}}