.arena-panel{display:grid;gap:9px;min-width:0}.arena-heading{display:flex;justify-content:space-between;align-items:center;gap:8px}.arena-heading h2{font-size:1.12rem;margin:0}.arena-heading>span{font-size:.75rem;color:var(--muted,#677971)}.arena-tabs,.arena-tiers{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.arena-tabs button,.arena-tiers button{min-width:0;padding:7px 4px;font-size:.8rem;min-height:34px}.arena-tiers{grid-template-columns:repeat(3,minmax(0,1fr))}.arena-panel button[aria-pressed=true]{background:#e7efea;border-color:#718f7c;box-shadow:inset 0 -2px #537966}.arena-scene{margin:0;position:relative;height:76px;overflow:hidden;border-radius:9px}.arena-scene img{width:100%;height:100%;object-fit:cover}.arena-scene figcaption{position:absolute;bottom:4px;left:6px;font-size:.72rem;background:#ffffffe6;padding:2px 6px;border-radius:4px}.arena-selectors{display:grid;grid-template-columns:1.15fr 1fr;gap:8px}.arena-selectors label,.arena-current{font-size:.73rem;display:grid;gap:4px;min-width:0}.arena-selectors select{width:100%;font-size:.8rem;padding:7px 5px;min-height:34px}.arena-current{align-content:center;padding:3px 7px}.arena-current b{font-size:.96rem}.arena-card{background:var(--panel,#fff);border:1px solid var(--line,#d9e4dd);border-radius:10px;padding:10px;min-width:0}.arena-card h3{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:1rem;margin:0 0 7px}.arena-card h3 small{font-size:.73rem;font-weight:400;white-space:nowrap}.arena-card p{font-size:.81rem;line-height:1.5;margin:7px 0}.arena-card .note{font-size:.73rem}.arena-card>.primary{width:100%;margin-top:5px;min-height:37px;font-size:.88rem;padding:7px}.arena-rewards{display:flex;gap:6px;flex-wrap:wrap;font-size:.74rem;background:#f2f6f1;padding:7px;border-radius:6px}.arena-rewards>span{display:flex;align-items:center;gap:3px}.arena-rewards .item-art{width:24px;height:24px;flex:none}.arena-status{color:var(--green,#496855)}.arena-no-reward{background:#f5f2e9;padding:8px;border-radius:6px}.arena-footer{display:flex;justify-content:space-between;gap:6px}.arena-footer button{font-size:.74rem;padding:4px;min-height:30px}.arena-enemies,.arena-calendar,.arena-history{display:grid;gap:8px}.arena-enemies article,.arena-calendar article,.arena-history article{display:grid;gap:5px;padding:8px;border:1px solid var(--line,#dde6dd);border-radius:6px;font-size:.81rem}.arena-enemies article span,.arena-calendar article span,.arena-history article span{font-size:.74rem;line-height:1.45}.arena-calendar [aria-current=date]{background:#edf4ee;border-color:#819f89}.arena-history-pager{display:flex;align-items:center;justify-content:space-between;gap:6px}.arena-history-pager button{font-size:.78rem;padding:5px}.arena-receipt h3{font-size:1rem}.arena-receipt p{font-size:.85rem}@media(max-height:730px){.arena-panel{gap:6px}.arena-scene{height:52px}.arena-card{padding:8px}.arena-card p{margin:5px 0}.arena-rewards{padding:5px}.arena-heading>span{font-size:.69rem}.arena-tabs button,.arena-tiers button{padding:5px 3px;min-height:30px}}[data-theme=night] .arena-rewards{background:#243b32}[data-theme=night] .arena-panel button[aria-pressed=true],[data-theme=night] .arena-calendar [aria-current=date]{background:#2d453b}[data-theme=night] .arena-no-reward{background:#403d30}

.arena-rewards .arena-material{display:flex;align-items:center;gap:3px;font-size:.74rem;line-height:1.3;min-height:28px;padding:2px;border:0;box-shadow:none;background:transparent;border-radius:4px}.arena-material:focus-visible{outline:2px solid #718f7c;outline-offset:2px}

.arena-selectors{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}.arena-selectors select{min-width:0;max-width:100%;box-sizing:border-box}.arena-status:empty{display:none}.arena-panel[data-arena-panel=challenge] .arena-card .arena-tip{display:none}.arena-panel[data-arena-panel=challenge] .arena-reward-rule{margin:5px 0}.arena-panel[data-arena-panel=challenge] .arena-no-reward{padding:6px}.arena-panel[data-arena-panel=challenge] .arena-card h3{margin-bottom:5px}
@media(max-height:730px){.arena-panel{gap:5px}.arena-panel[data-arena-panel=challenge] .arena-scene{display:none}.arena-heading{min-height:22px}.arena-selectors label{font-size:0;gap:0}.arena-selectors select{font-size:.76rem;min-height:32px;padding:5px 3px}.arena-current small{display:none}.arena-current b{font-size:.84rem}.arena-tabs button,.arena-tiers button{font-size:.74rem;min-height:29px;padding:4px 2px}.arena-card h3{font-size:.89rem}.arena-card{padding:8px}.arena-card p{font-size:.76rem;margin:5px 0}.arena-card .note{font-size:.71rem;line-height:1.4}.arena-card>.primary{min-height:32px;padding:5px;font-size:.81rem}.arena-rewards{gap:3px;padding:4px}.arena-rewards .arena-material{font-size:.70rem;min-height:24px;padding:0}.arena-rewards .item-art{width:20px;height:20px}.arena-footer button{font-size:.70rem;min-height:25px}.arena-enemies,.arena-calendar,.arena-history{gap:5px}.arena-enemies article,.arena-calendar article,.arena-history article{padding:6px;font-size:.76rem;gap:3px}.arena-enemies article span,.arena-calendar article span,.arena-history article span{font-size:.70rem}.arena-heading>span{font-size:.66rem}}

.arena-material.text-action::before,.arena-material.text-action::after{content:none}[data-theme=night] .arena-scene figcaption{background:#1d302de6;color:var(--ink)}

/* Small screens share global viewport button rules; scope these overrides to the arena. */
@media(max-height:730px){
 .viewport-shell #main .arena-panel .arena-heading{min-height:23px;line-height:1.3}
 .viewport-shell #main .arena-panel .arena-heading h2{font-size:14px;line-height:1.3;margin:0}
 .viewport-shell #main .arena-panel .arena-tabs button,.viewport-shell #main .arena-panel .arena-tiers button{min-height:30px;padding:4px 2px;font-size:11px;line-height:1.25}
 .viewport-shell #main .arena-panel .arena-selectors{align-items:center}
 .viewport-shell #main .arena-panel .arena-selectors label{font-size:0;line-height:0;gap:0;margin:0}
 .viewport-shell #main .arena-panel .arena-selectors select{min-height:32px;height:32px;margin:0;padding:4px;font-size:11px;line-height:1.3}
 .viewport-shell #main .arena-panel .arena-current{padding:0 4px;gap:0;line-height:1.3}
 .viewport-shell #main .arena-panel .arena-card h3{font-size:13px;line-height:1.4;margin:0 0 5px}
 .viewport-shell #main .arena-panel .arena-card .note,.viewport-shell #main .arena-panel .arena-status{font-size:10.5px;line-height:1.4;margin:5px 0}
 .viewport-shell #main .arena-panel .arena-rewards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;padding:5px}
 .viewport-shell #main .arena-panel button.arena-material{min-width:0;min-height:28px;padding:0;font-size:10.5px;line-height:1.2;gap:2px;justify-content:flex-start}
 .viewport-shell #main .arena-panel button.arena-material span{min-width:0;white-space:normal}
 .viewport-shell #main .arena-panel button.arena-material .item-art{width:18px;height:18px;flex:0 0 18px}
 .viewport-shell #main .arena-panel .arena-card>.primary{min-height:34px;padding:5px;font-size:12px;line-height:1.25}
 .viewport-shell #main .arena-panel .arena-footer button{min-height:25px;padding:3px 0;font-size:10.5px;line-height:1.3}
}