/**
 * Попап арен (#arena-overlay) и лобби WAITING (#arena-lobby-overlay).
 */
#arena-overlay.popup-arenas {
  position: fixed;
  inset: 0;
  z-index: 1002;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  pointer-events: none;
  background: transparent;
}
#arena-overlay.popup-arenas.open {
  pointer-events: all;
}
#arena-overlay.popup-arenas .arena-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  transition: opacity 0.28s ease;
}
#arena-overlay.popup-arenas.open .arena-backdrop {
  opacity: 1;
}

#arena-overlay.popup-arenas .arena-modal {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: min(52rem, 100%);
  height: 85vh;
  max-height: min(800px, 85vh);
  display: flex;
  flex-direction: column;
  min-height: 0;
  transform: scale(0.96) translateY(16px);
  opacity: 0;
  transition: transform 0.32s cubic-bezier(0.34, 1.2, 0.64, 1), opacity 0.22s ease;
}
#arena-overlay.popup-arenas.open .arena-modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}

#arena-overlay.popup-arenas .arena-modal.arena-modal-glass {
  background: rgba(12, 18, 28, 0.72);
  border: 1px solid rgba(7, 129, 161, 0.35);
  border-radius: 1.5rem;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 24px 56px rgba(0, 0, 0, 0.55),
    0 0 48px rgba(7, 129, 161, 0.14);
  backdrop-filter: blur(26px);
  -webkit-backdrop-filter: blur(26px);
}

#arena-overlay.popup-arenas #arena-close {
  flex-shrink: 0;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.45);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
#arena-overlay.popup-arenas #arena-close:hover {
  color: #fff;
  border-color: rgba(7, 129, 161, 0.45);
  background: rgba(7, 129, 161, 0.12);
}

#arena-overlay.popup-arenas .arena-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem 1rem;
  border-bottom: 1px solid rgba(7, 129, 161, 0.15);
  flex-shrink: 0;
}
#arena-overlay.popup-arenas .arena-modal-title {
  flex: 1;
  margin: 0;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #e8f4ff;
  text-shadow:
    0 0 18px rgba(56, 189, 248, 0.35),
    0 0 2px rgba(7, 129, 161, 0.85);
}

#arena-overlay.popup-arenas .arena-modal-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  padding: 1.25rem 1.5rem 1.5rem;
}

#arena-overlay.popup-arenas .arena-hub-list-header {
  flex-shrink: 0;
}

#arena-overlay.popup-arenas #arena-create-wrap {
  flex-shrink: 0;
}

#arena-overlay.popup-arenas .arena-list-scroll {
  flex: 1;
  min-height: 0;
  max-height: none;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 0.35rem;
  box-sizing: border-box;
}

#arena-overlay.popup-arenas .arena-list-scroll {
  scrollbar-width: thin;
  scrollbar-color: rgba(7, 129, 161, 0.55) rgba(255, 255, 255, 0.06);
}
#arena-overlay.popup-arenas .arena-list-scroll::-webkit-scrollbar {
  width: 7px;
}
#arena-overlay.popup-arenas .arena-list-scroll::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 99px;
}
#arena-overlay.popup-arenas .arena-list-scroll::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(7, 129, 161, 0.75), rgba(56, 189, 248, 0.35));
  border-radius: 99px;
  border: 1px solid rgba(0, 0, 0, 0.25);
}
#arena-overlay.popup-arenas .arena-list-scroll::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.85), rgba(7, 129, 161, 0.5));
}

/* Карточки арен внутри попапа */
.ratings-page #arena-overlay.popup-arenas .arena-card,
.ratings-page #arena-overlay.popup-arenas .arena-acc-card {
  background: rgba(8, 16, 28, 0.52) !important;
  border-color: rgba(7, 129, 161, 0.28) !important;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35) !important;
}
.ratings-page #arena-overlay.popup-arenas .arena-card:hover,
.ratings-page #arena-overlay.popup-arenas .arena-acc-card:hover {
  border-color: rgba(7, 129, 161, 0.28) !important;
  box-shadow:
    inset 0 0 0 1px rgba(56, 189, 248, 0.38),
    0 12px 36px rgba(7, 129, 161, 0.14) !important;
}

.ratings-page #arena-overlay.popup-arenas .arena-field input:focus,
.ratings-page #arena-overlay.popup-arenas .arena-field select:focus {
  border-color: rgba(7, 129, 161, 0.65) !important;
  box-shadow: 0 0 0 2px rgba(7, 129, 161, 0.15) !important;
}

.ratings-page #arena-overlay.popup-arenas #af-submit {
  background: linear-gradient(135deg, #0369a1 0%, #0781a1 55%, #0ea5e9 100%) !important;
  box-shadow: 0 4px 18px rgba(7, 129, 161, 0.35) !important;
}
.ratings-page #arena-overlay.popup-arenas #af-submit:hover:not(:disabled) {
  filter: brightness(1.08);
}

/* ── Лобби арены (поверх хаба) ───────────────────────────────── */
#arena-lobby-overlay.arena-lobby-overlay {
  position: fixed;
  inset: 0;
  z-index: 1003;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  pointer-events: none;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
#arena-lobby-overlay.arena-lobby-overlay.open {
  pointer-events: all;
  visibility: visible;
  opacity: 1;
}
#arena-lobby-overlay .arena-lobby-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
#arena-lobby-overlay .arena-lobby-shell {
  position: relative;
  z-index: 1;
  display: flex;
  max-height: min(90vh, 880px);
  width: 100%;
  max-width: 42rem;
  flex-direction: column;
  overflow: hidden;
  border-radius: 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(10, 18, 32, 0.72);
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
@media (min-width: 768px) {
  #arena-lobby-overlay .arena-lobby-shell {
    max-width: 56rem;
  }
}
#arena-lobby-overlay .arena-lobby-top {
  display: flex;
  flex-shrink: 0;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.75rem 1rem;
}
#arena-lobby-overlay .arena-lobby-x {
  flex-shrink: 0;
  display: flex;
  height: 2.25rem;
  width: 2.25rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.35);
  color: rgba(255, 255, 255, 0.85);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}
#arena-lobby-overlay .arena-lobby-x:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}
#arena-lobby-overlay .arena-lobby-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding: 1rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(7, 129, 161, 0.55) rgba(255, 255, 255, 0.06);
}
#arena-lobby-overlay .arena-lobby-scroll::-webkit-scrollbar {
  width: 7px;
}
#arena-lobby-overlay .arena-lobby-scroll::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 99px;
}
#arena-lobby-overlay .arena-lobby-scroll::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(7, 129, 161, 0.75), rgba(56, 189, 248, 0.35));
  border-radius: 99px;
}
#arena-lobby-overlay .arena-lobby-bar {
  flex-shrink: 0;
  padding: 0 1rem 1rem;
}

/* Лобби «Вступить»: одинаковая высота ячеек (занято / свободно) в строке сетки */
#arena-lobby-overlay .arena-lobby-slot-grid {
  align-items: stretch;
}
#arena-lobby-overlay .arena-lobby-slot {
  min-height: 140px;
  height: 100%;
  box-sizing: border-box;
}