/* ==========================================================================
   Тема UPGRADE.SIM: премиальный тёмный интерфейс.
   Подключается последним на всех страницах и меняет только оформление —
   разметка, логика и игровая механика не затрагиваются.
   Фон — чистые CSS-градиенты (0 байт картинок), блюр — только на крупных панелях.
   ========================================================================== */

/* ---------- Фон: мягкие синие и оранжевые свечения ---------- */
html { background: var(--bg); }
body { background: transparent; }
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60vmax 45vmax at 8% -10%, rgba(65, 105, 255, .16), transparent 62%),
    radial-gradient(55vmax 40vmax at 100% 0%, rgba(255, 157, 0, .11), transparent 60%),
    radial-gradient(70vmax 50vmax at 85% 110%, rgba(65, 105, 255, .08), transparent 65%),
    radial-gradient(50vmax 35vmax at 0% 100%, rgba(255, 157, 0, .06), transparent 60%),
    linear-gradient(180deg, #080A10 0%, #0a0d15 55%, #080A10 100%);
}
/* Едва заметная сетка поверх свечений — глубина без шума. */
body::after {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .5;
  background-image: linear-gradient(rgba(255, 255, 255, .018) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255, 255, 255, .018) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
  mask: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
}

/* ---------- Стеклянные панели ---------- */
.panel, .stage, .adm-card, .kpi, .stat-tile, .tbl-wrap {
  background: linear-gradient(180deg, rgba(255, 255, 255, .035), rgba(255, 255, 255, 0) 42%), var(--glass);
  border: 1px solid var(--edge);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .045), 0 12px 32px rgba(0, 0, 0, .32);
  -webkit-backdrop-filter: blur(14px) saturate(1.15);
  backdrop-filter: blur(14px) saturate(1.15);
}
.panel, .adm-card { border-radius: 14px; }
.stage { border-radius: 18px; }
.tbl-wrap { box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; background: rgba(8, 10, 16, .35); }
.slot {
  background: radial-gradient(120% 80% at 50% 45%, color-mix(in srgb, var(--rc) 16%, transparent), transparent 70%), rgba(8, 10, 16, .55);
  border-color: color-mix(in srgb, var(--rc) 40%, var(--edge));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .04), inset 0 -30px 60px rgba(0, 0, 0, .25);
}
.h-row, .wear-row, .quest, .ach, .recent li, .tx-list li, .mini, .cf-summary { background: rgba(8, 10, 16, .5); }
.quest, .ach, .cf-summary { border-color: var(--edge); }

/* ---------- Шапка ---------- */
.topbar, .adm-top {
  background: linear-gradient(180deg, rgba(8, 10, 16, .88), rgba(8, 10, 16, .66));
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  border-bottom: 1px solid transparent;
  padding-top: 12px; padding-bottom: 12px;
}
.topbar::after, .adm-top::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(65, 105, 255, .55) 25%, rgba(255, 157, 0, .55) 75%, transparent);
  opacity: .7;
}
.brand svg { filter: drop-shadow(0 0 8px rgba(255, 157, 0, .55)); transition: transform .4s var(--ease); }
.brand:hover svg { transform: rotate(-8deg) scale(1.06); }
.balance {
  border-radius: 12px; padding: 7px 14px 7px 10px;
  background: linear-gradient(180deg, rgba(255, 157, 0, .1), rgba(255, 157, 0, .02)), rgba(16, 20, 29, .8);
  border: 1px solid rgba(255, 157, 0, .28);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06), 0 0 18px rgba(255, 157, 0, .12);
  color: #fff;
}
.user-chip { border-radius: 12px; background: rgba(16, 20, 29, .8); border-color: var(--edge); }
.user-chip:hover { border-color: rgba(65, 105, 255, .45); box-shadow: 0 0 16px rgba(65, 105, 255, .18); }
.notice { background: rgba(8, 10, 16, .45); border-bottom-color: var(--edge); }

/* ---------- Кнопки ---------- */
.btn {
  position: relative; overflow: hidden; border-radius: 10px;
  background: rgba(22, 27, 39, .85); border-color: var(--edge);
  transition: transform .2s var(--ease), box-shadow .25s var(--ease), background .2s, border-color .2s, color .2s, opacity .2s;
}
.btn:hover:not(:disabled) {
  background: rgba(30, 37, 54, .95); border-color: rgba(65, 105, 255, .4);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .35), 0 0 0 1px rgba(65, 105, 255, .12), 0 0 18px rgba(65, 105, 255, .14);
  transform: translateY(-1px);
}
.btn:active:not(:disabled) { transform: translateY(0) scale(.98); }
.btn:focus-visible, .chip:focus-visible, .tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-ghost { background: transparent; }
.btn-primary {
  color: #1d1200; border: none;
  background: linear-gradient(180deg, #ffc14d 0%, #FF9D00 55%, #f08a00 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .45), inset 0 -2px 0 rgba(0, 0, 0, .12), 0 8px 26px rgba(255, 157, 0, .32);
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(180deg, #ffd27a 0%, #ffab1f 55%, #FF9D00 100%);
  border-color: transparent;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .5), 0 10px 32px rgba(255, 157, 0, .45), 0 0 0 1px rgba(255, 193, 77, .35);
}
/* Блик по основной кнопке при наведении. */
.btn-primary::after {
  content: ""; position: absolute; inset: 0; pointer-events: none; transform: translateX(-130%);
  background: linear-gradient(105deg, transparent 35%, rgba(255, 255, 255, .5) 50%, transparent 65%);
}
.btn-primary:hover:not(:disabled)::after { transform: translateX(130%); transition: transform .8s var(--ease); }
.btn-danger { background: rgba(255, 64, 88, .1); border-color: rgba(255, 64, 88, .4); }
.btn-danger:hover:not(:disabled) { background: rgba(255, 64, 88, .18); border-color: var(--lose); box-shadow: 0 0 18px rgba(255, 64, 88, .25); }
.btn-quick { background: rgba(255, 157, 0, .08); border-color: rgba(255, 157, 0, .3); }

.chip, .tab, .tabs-sm button, .seg button, .mult-buttons button, .auth-tabs button {
  transition: background .2s, color .2s, border-color .2s, box-shadow .25s, transform .2s var(--ease);
}
.chip { background: rgba(8, 10, 16, .5); border-color: var(--edge); }
.chip:hover { border-color: rgba(65, 105, 255, .4); color: var(--text); }
.chip.active { box-shadow: 0 0 16px rgba(255, 157, 0, .3); }
.mult-buttons button { background: rgba(8, 10, 16, .55); border-color: var(--edge); }
.mult-buttons button:hover { transform: translateY(-1px); border-color: var(--accent); box-shadow: 0 0 14px rgba(255, 157, 0, .25); }
.tabs, .seg, .tabs-sm { background: rgba(8, 10, 16, .6); border-color: var(--edge); }
.tab.active, .seg button.active, .tabs-sm button.active { background: rgba(255, 157, 0, .1); }

/* Поля ввода */
.filters input[type="search"], .filter-row select, .filter-row input[type="number"],
.adm-content input, .adm-content select, .adm-panel-modal input, .adm-panel-modal select, .field-box {
  background: rgba(8, 10, 16, .6); border-color: var(--edge);
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.filters input:focus, .filters select:focus, .adm-content input:focus, .adm-content select:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px rgba(255, 157, 0, .14);
}

/* ---------- Карточки скинов ---------- */
.card {
  border-radius: 12px; border-color: var(--edge);
  background:
    radial-gradient(90% 65% at 50% 40%, color-mix(in srgb, var(--rc) 16%, transparent), transparent 72%),
    linear-gradient(180deg, rgba(26, 32, 46, .92), rgba(12, 15, 23, .95));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .05), 0 6px 16px rgba(0, 0, 0, .28);
  transition: transform .28s var(--ease), border-color .28s, box-shadow .3s var(--ease);
}
.card::before { height: 2px; left: 14%; right: 14%; bottom: 0; border-radius: 2px; opacity: .9; }
.card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--rc) 55%, transparent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .07), 0 16px 34px rgba(0, 0, 0, .45),
              0 0 26px color-mix(in srgb, var(--rc) 28%, transparent);
}
.card .skin-img { transition: transform .4s var(--ease), filter .4s; }
.card:hover .skin-img { transform: scale(1.07) rotate(-2deg) translateY(-2px); filter: drop-shadow(0 10px 14px color-mix(in srgb, var(--rc) 45%, rgba(0, 0, 0, .6))); }
.card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 0 28px rgba(255, 157, 0, .35), 0 14px 30px rgba(0, 0, 0, .4);
}

/* ---------- Круговой апгрейдер: объёмная рамка и подсветка ---------- */

/* ---------- Окна, уведомления, загрузка ---------- */
.modal { background: rgba(4, 6, 10, .62); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.modal-box, .gate-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, 0) 40%), var(--glass-strong);
  border: 1px solid var(--edge-hi); border-radius: 16px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06), 0 30px 80px rgba(0, 0, 0, .6);
  -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
}
.toast {
  background: rgba(16, 20, 29, .9); border-color: var(--edge-hi); border-radius: 12px;
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, .5), 0 0 0 1px rgba(65, 105, 255, .12);
}
.loader { background: var(--bg); }
.adm-side { background: rgba(8, 10, 16, .78); -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px); border-right-color: var(--edge); }

/* ---------- Плавное появление блоков ---------- */
.layout > * { animation: ui-rise .5s var(--ease) both; }
.layout > :nth-child(2) { animation-delay: .05s; }
.layout > :nth-child(3) { animation-delay: .1s; }
.layout > :nth-child(4) { animation-delay: .15s; }
@keyframes ui-rise { from { opacity: 0; transform: translateY(10px); } }

/* Слабые устройства и телефоны: блюр меньше, свечения тише. */
@media (max-width: 560px) {
  .panel, .stage, .adm-card, .kpi, .stat-tile { -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
}
@media (prefers-reduced-transparency: reduce) {
  .panel, .stage, .adm-card, .kpi, .stat-tile, .topbar, .adm-top, .modal-box { background: var(--panel); -webkit-backdrop-filter: none; backdrop-filter: none; }
}

/* ---------- Иконка валюты во всех денежных значениях ---------- */
.kpi b.money::before, .stat-tile.st-coin .st-value::before, .amount-plus::before, .amount-minus::before, .tx-list li b::before {
  content: ""; display: inline-block; width: .95em; height: .95em; margin-right: .3em; vertical-align: -.12em;
  background: var(--coin-sm) center / contain no-repeat;
}
.kpi b.money::before, .stat-tile.st-coin .st-value::before { width: .85em; height: .85em; }