.upgrade-page { width: min(100%, 1280px); margin-inline: auto; padding: 32px 24px 64px; }
.upgrade-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.upgrade-heading h1 { margin: 0; font-size: clamp(1.75rem, 3vw, 2rem); }
.upgrade-heading__actions { flex-shrink: 0; }
.quick-toggle { display: inline-flex; min-height: 44px; align-items: center; gap: 9px; color: var(--text-secondary); font-size: .875rem; cursor: pointer; }
.quick-toggle input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.quick-toggle__track { position: relative; width: 40px; height: 22px; border-radius: 11px; background: var(--border); transition: background-color 150ms ease; }
.quick-toggle__track::after { position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: var(--text); content: ''; transition: transform 150ms ease; }
.quick-toggle input:checked + .quick-toggle__track { background: var(--casino-red); }
.quick-toggle input:checked + .quick-toggle__track::after { transform: translateX(18px); }
.quick-toggle input:focus-visible + .quick-toggle__track { outline: 2px solid var(--casino-red); outline-offset: 3px; }
.upgrade-machine { display: grid; grid-template-columns: minmax(0, 1fr) 240px minmax(0, 1fr); align-items: start; gap: 24px; }
.upgrade-slot { display: flex; min-width: 0; flex-direction: column; gap: 12px; }
.upgrade-slot__label { min-height: 24px; color: var(--text-secondary); font-size: .875rem; font-weight: 650; }
.selected-item { display: flex; width: 100%; min-width: 0; min-height: 184px; align-items: center; justify-content: center; flex-direction: column; gap: 8px; padding: 16px; border: 1px solid var(--border); border-radius: var(--radius-panel); background: var(--surface-raised); color: var(--text-secondary); font: inherit; font-size: .875rem; line-height: 1.4; overflow-wrap: anywhere; cursor: pointer; transition: border-color 150ms ease, background-color 150ms ease; }
.selected-item:hover:not(:disabled) { border-color: var(--accent); }
.selected-item:disabled { cursor: default; }
.selected-item__plus { width: 38px; height: 38px; }
.selected-item .upgrade-item__image { width: min(160px, 100%); height: 100px; flex: 0 0 100px; }
.selected-item strong { max-width: 100%; color: var(--text); font-size: .9375rem; line-height: 1.4; }
.selected-item__term { font-size: .8125rem; }
.selected-item--multiple { display: grid; align-content: center; gap: 8px; }
.selected-item__entry { display: grid; grid-template-columns: 44px minmax(0, 1fr); align-items: center; gap: 8px; text-align: left; }
.selected-item__entry .upgrade-item__image { width: 44px; height: 44px; }
.selected-item__entry strong { font-size: .8125rem; }
.selected-value { min-height: 24px; color: var(--text); text-align: center; font-size: .9375rem; font-weight: 650; }
.balance-stake { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; min-height: 88px; padding: 12px; border: 1px solid var(--border); border-radius: var(--radius-control); background: var(--surface); }
.balance-stake__label, .balance-stake output { font-size: .8125rem; color: var(--text-secondary); }
.balance-stake input { grid-column: 1 / -1; grid-row: 2; width: 100%; min-width: 0; height: 28px; margin: 0; accent-color: var(--accent); cursor: pointer; }
.balance-stake output { grid-column: 2; grid-row: 1; color: var(--text); font-variant-numeric: tabular-nums; }
.balance-stake input:disabled { opacity: .5; cursor: not-allowed; }
.upgrade-core { display: flex; min-width: 0; align-items: center; flex-direction: column; gap: 16px; padding-top: 36px; }
.upgrade-wheel { position: relative; display: grid; width: 220px; flex: 0 0 auto; aspect-ratio: 1; place-items: center; border-radius: 50%; background: conic-gradient(from var(--chance-start, 180deg), var(--casino-red) 0 var(--chance-angle, 0deg), var(--red-muted) var(--chance-angle, 0deg) 360deg); }
.upgrade-wheel::before { position: absolute; inset: 5px; border: 1px solid rgba(var(--red-rgb), .45); border-radius: inherit; content: ''; }
.upgrade-wheel__disc { position: absolute; inset: 12px; border: 1px solid rgba(var(--red-rgb), .2); border-radius: 50%; background: var(--surface-raised); }
.upgrade-wheel__tick { position: absolute; top: -6px; left: 50%; width: 3px; height: 18px; border-radius: 3px; background: var(--casino-red); transform: translateX(-50%); }
.upgrade-wheel__needle { position: absolute; top: 18px; left: 50%; z-index: 3; width: 2px; height: calc(50% - 18px); background: linear-gradient(var(--casino-red), transparent); transform: translate3d(-50%, 0, 0); transform-origin: 50% 100%; }
.upgrade-wheel__needle::before { position: absolute; top: -4px; left: -4px; width: 10px; height: 10px; border-radius: 50%; background: var(--casino-red); content: ''; }
.is-running .upgrade-wheel__needle { will-change: transform; }
.upgrade-wheel__center { position: relative; z-index: 2; display: flex; align-items: center; flex-direction: column; gap: 6px; pointer-events: none; }
.upgrade-wheel__center strong { font-size: 1.875rem; font-variant-numeric: tabular-nums; }
.upgrade-wheel__center strong span { color: var(--text); font-size: 1rem; }
.upgrade-wheel__center > span { color: var(--text-secondary); font-size: .8125rem; }
.chance-controls { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.chance-button { display: flex; min-width: 0; min-height: 44px; align-items: center; justify-content: center; padding: 6px 4px; border: 1px solid var(--border); border-radius: var(--radius-control); background: var(--surface-raised); color: var(--text-secondary); font: inherit; font-size: .875rem; font-weight: 600; cursor: pointer; transition: background-color 150ms ease, border-color 150ms ease; }
.chance-button:hover:not(:disabled), .chance-button.is-active:not(:disabled) { border-color: var(--accent); background: var(--red-muted); color: var(--text); }
.chance-button:disabled { color: var(--text-muted); cursor: not-allowed; }
.upgrade-button { display: flex; width: 100%; min-height: 48px; align-items: center; justify-content: center; padding: 12px 16px; border: 0; border-radius: var(--radius-control); background: var(--casino-red); color: var(--text); font: inherit; font-size: .9375rem; font-weight: 650; cursor: pointer; transition: background-color 150ms ease, transform 150ms ease; }
.upgrade-button:hover:not(:disabled) { background: var(--red-hover); }
.upgrade-button:active:not(:disabled) { transform: scale(.96); }
.upgrade-button:disabled { background: var(--surface-hover); color: var(--text-muted); cursor: not-allowed; }
.upgrade-button:disabled[aria-busy='true'] { cursor: wait; }
.upgrade-error { margin: 0; color: var(--casino-red); font-size: .875rem; line-height: 1.5; }
.upgrade-error:empty { display: none; }
.inventory-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; margin-top: 28px; }
.inventory-column { min-width: 0; }
.inventory-heading { display: flex; align-items: end; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.inventory-heading h2 { margin: 0; font-size: 1.25rem; }
.inventory-total { color: var(--text-muted); font-size: .8125rem; }
.inventory-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; align-items: stretch; }
.inventory-pagination { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 4px; margin-top: 20px; font-size: .875rem; font-variant-numeric: tabular-nums; }
.inventory-pagination:empty { display: none; }
.inventory-pagination__page { min-width: 40px; min-height: 44px; padding: 8px; border: 1px solid var(--border); border-radius: var(--radius-control); background: var(--surface); color: var(--text); font: inherit; cursor: pointer; }
.inventory-pagination__page:hover:not(:disabled), .inventory-pagination__page[aria-current="page"] { border-color: var(--casino-red); background: var(--red-muted); }
.inventory-pagination__page:disabled { color: var(--text-muted); cursor: not-allowed; }
.upgrade-item { display: flex; min-width: 0; align-items: center; flex-direction: column; gap: 4px; padding: 10px 8px; border: 1px solid var(--border); border-radius: var(--radius-panel); background: var(--surface); color: var(--text); font: inherit; cursor: pointer; transition: border-color 150ms ease, background-color 150ms ease; }
.upgrade-item:hover:not(:disabled) { border-color: var(--accent); }
.upgrade-item.is-selected { border-color: var(--accent); background: var(--red-muted); }
.upgrade-item:disabled { cursor: not-allowed; }
.upgrade-item__image { display: block; width: 100%; height: 68px; flex: 0 0 68px; object-fit: contain; }
.upgrade-item__name { width: 100%; color: var(--text); font-size: .875rem; font-weight: 650; overflow-wrap: anywhere; line-height: 1.4; }
.upgrade-item__term, .upgrade-item__project { color: var(--text-muted); font-size: .8125rem; line-height: 1.4; overflow-wrap: anywhere; }
.upgrade-item__price { display: inline-flex; align-items: center; margin-top: auto; padding-top: 6px; color: var(--text); font-size: .875rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.inventory-empty { display: grid; grid-column: 1 / -1; min-height: 140px; gap: 12px; align-content: center; justify-items: center; padding: 20px; border: 1px dashed var(--border); border-radius: var(--radius-panel); color: var(--text-secondary); text-align: center; font-size: .875rem; line-height: 1.6; }
.inventory-empty p { margin: 0; }
.item-picker { width: min(760px, calc(100vw - 16px)); height: min(860px, calc(100dvh - 16px)); max-height: calc(100dvh - 16px); padding: 0; }
.item-picker[open] { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; }
.item-picker__heading { position: relative; padding: 20px 64px 16px 20px; border-bottom: 1px solid var(--border); }
.item-picker__heading h2 { margin: 0; font-size: 1.25rem; }
#picker-content { min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 20px; }
.item-picker__footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 20px max(12px, env(safe-area-inset-bottom)); border-top: 1px solid var(--border); background: var(--surface-raised); }
.item-picker__footer p { margin: 0; font-size: .8125rem; line-height: 1.4; }
.item-picker .inventory-heading { display: none; }
@media (max-width: 1024px) {
  .upgrade-machine { grid-template-columns: minmax(0, 1fr) 200px minmax(0, 1fr); gap: 16px; }
  .upgrade-wheel { width: 190px; }
  .inventory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .upgrade-machine { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .source-slot { grid-column: 1; grid-row: 1; }
  .target-slot { grid-column: 2; grid-row: 1; }
  .upgrade-core { grid-column: 1 / -1; grid-row: 2; display: grid; grid-template-columns: auto minmax(0, 240px); justify-content: center; column-gap: 24px; padding-top: 8px; }
  .upgrade-wheel { grid-column: 1; grid-row: 1 / 3; width: 160px; }
  .upgrade-button { align-self: end; }
  .upgrade-error { grid-column: 2; align-self: start; }
  .upgrade-button { max-width: 420px; }
  [data-picker-ready] .inventory-section { display: none; }
  .item-picker .inventory-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .upgrade-page { padding: 16px 12px 32px; }
  .upgrade-heading { flex-wrap: wrap; gap: 8px; }
  .upgrade-heading > div:first-child { flex: 1 1 120px; }
  .upgrade-machine { gap: 20px 12px; }
  .selected-item { min-height: 164px; padding: 12px 8px; }
  .selected-item .upgrade-item__image { height: 76px; flex-basis: 76px; }
  .selected-item__entry .upgrade-item__image { width: 32px; height: 32px; }
  .selected-item__entry { grid-template-columns: 32px minmax(0, 1fr); gap: 4px; }
  .selected-item strong { font-size: .875rem; }
  .chance-controls { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
  .chance-button { font-size: .8125rem; }
  .balance-stake { padding: 10px 8px; grid-template-columns: 1fr; }
  .balance-stake output { grid-column: 1; grid-row: 3; justify-self: end; }
  .upgrade-slot__label { font-size: .8125rem; }
  .upgrade-wheel { width: 140px; }
  .upgrade-core { column-gap: 16px; }
  .upgrade-wheel__center strong { font-size: 1.5rem; }
  .upgrade-wheel__center > span { font-size: .75rem; }
  .item-picker .inventory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #picker-content { padding: 16px 12px; }
}
.upgrade-result { display: none !important; }
.upgrade-result h2, .upgrade-result p { margin: 0; font-size: .9375rem; }
.upgrade-result p:empty { display: none; }
.upgrade-result a { margin-left: auto; }
.upgrade-machine[data-outcome='success'] #target-selected { animation: upgrade-target-success 1400ms ease-in-out both; }
.upgrade-machine[data-outcome='loss'] #target-selected { animation: upgrade-target-loss 1400ms ease-in-out both; }
#upgrade-machine[data-outcome='success'] .upgrade-wheel { animation: upgrade-wheel-success 1400ms ease-in-out both; }
#upgrade-machine[data-outcome='loss'] .upgrade-wheel { animation: upgrade-wheel-loss 1400ms ease-in-out both; }
@keyframes upgrade-target-success {
  0%, 100% { border-color: var(--border); background: var(--surface-raised); }
  20%, 65% { border-color: #4b9b69; background: #173c28; }
}
@keyframes upgrade-target-loss {
  0%, 100% { border-color: var(--border); background: var(--surface-raised); }
  20%, 65% { border-color: var(--casino-red); background: var(--red-muted); }
}
@keyframes upgrade-wheel-success {
  0%, 100% { filter: drop-shadow(0 0 0 transparent); }
  20%, 65% { filter: drop-shadow(0 0 20px rgba(75, 155, 105, .65)); }
}
@keyframes upgrade-wheel-loss {
  0%, 100% { filter: drop-shadow(0 0 0 transparent); }
  20%, 65% { filter: drop-shadow(0 0 20px rgba(var(--red-rgb), .65)); }
}
@media (prefers-reduced-motion: reduce) {
  #upgrade-machine[data-outcome] #target-selected, #upgrade-machine[data-outcome] .upgrade-wheel { animation-duration: 1ms; }
}
:is(.upgrade-page, .item-picker) :where(button, input, select):focus-visible { outline-color: var(--casino-red); }