/* ---------- ACTIVITY PAGE ---------- */

.activity-page-shell {
  overflow-x: hidden;
  overflow-y: auto;
  background:
    radial-gradient(circle at 50% 8%, rgba(160, 247, 255, 0.16), transparent 18%),
    linear-gradient(180deg, #111449 0%, #16255a 32%, #22567d 58%, #1d3b68 76%, #101946 100%);
}

.activity-page-shell .arcade-shell {
  width: 100%;
  min-height: 100vh;
  padding: 0;
}

.activity-page-shell::before {
  background:
    radial-gradient(circle at 50% 8%, rgba(169, 247, 255, 0.22), transparent 20%),
    radial-gradient(circle at 16% 18%, rgba(255, 208, 137, 0.1), transparent 16%),
    radial-gradient(circle at 86% 12%, rgba(123, 246, 255, 0.12), transparent 18%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 24%);
}

.activity-stage {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 18px;
  width: 100%;
  min-height: 100vh;
  padding: 18px clamp(16px, 4vw, 36px) 42px;
  background:
    linear-gradient(180deg, #10154c 0%, #17305f 18%, #23739b 52%, #204b78 72%, #101c4d 100%);
}

.activity-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 18%, transparent 82%, rgba(255, 255, 255, 0.02)),
    radial-gradient(circle at 50% 42%, rgba(137, 239, 255, 0.16), transparent 18%);
  pointer-events: none;
  z-index: 1;
}

.activity-stage::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 46%;
  background: linear-gradient(180deg, rgba(40, 97, 151, 0) 0%, #1e4f78 34%, #183a62 68%, #0f2148 100%);
  pointer-events: none;
  z-index: 0;
}

.activity-stage__stars {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 8% 12%, rgba(153, 255, 255, 0.95) 0 1px, transparent 1.8px),
    radial-gradient(circle at 16% 28%, rgba(255, 232, 167, 0.95) 0 1.2px, transparent 2px),
    radial-gradient(circle at 24% 19%, rgba(255, 255, 255, 0.82) 0 1px, transparent 1.8px),
    radial-gradient(circle at 40% 26%, rgba(153, 255, 255, 0.82) 0 1.1px, transparent 2px),
    radial-gradient(circle at 58% 15%, rgba(255, 255, 255, 0.86) 0 1px, transparent 1.8px),
    radial-gradient(circle at 66% 31%, rgba(255, 232, 167, 0.96) 0 1.2px, transparent 2px),
    radial-gradient(circle at 78% 14%, rgba(153, 255, 255, 0.84) 0 1.1px, transparent 2px),
    radial-gradient(circle at 88% 27%, rgba(255, 232, 167, 0.9) 0 1px, transparent 1.9px),
    radial-gradient(circle at 10% 47%, rgba(255, 255, 255, 0.75) 0 1px, transparent 1.9px),
    radial-gradient(circle at 82% 45%, rgba(153, 255, 255, 0.82) 0 1.1px, transparent 1.9px);
  opacity: 0.95;
  pointer-events: none;
  z-index: 0;
  animation: homeStageDrift 18s linear infinite;
}

.activity-stage__scene {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

.activity-stage__sun {
  position: absolute;
  left: 50%;
  bottom: 49%;
  width: min(34vw, 340px);
  aspect-ratio: 1 / 1;
  transform: translateX(-50%);
  border-radius: 50%;
  background:
    linear-gradient(180deg, #caffff 0%, #9df0ff 38%, #4eb7ef 70%, #2b78d5 100%);
  box-shadow:
    0 0 70px rgba(146, 243, 255, 0.24),
    0 0 120px rgba(78, 183, 239, 0.12);
  z-index: 0;
}

.activity-stage__sun::after {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0 14px,
      rgba(255, 255, 255, 0.28) 14px 18px
    );
  opacity: 0.28;
}

.activity-stage__skyline {
  position: absolute;
  left: 50%;
  bottom: 44%;
  width: min(84vw, 860px);
  height: min(10vw, 118px);
  transform: translateX(-50%);
  background: linear-gradient(180deg, #21436c, #101b3f);
  clip-path: polygon(
    0 100%, 0 92%, 4% 92%, 4% 72%, 6% 72%, 6% 88%, 8% 88%, 8% 64%, 10% 64%,
    10% 84%, 12% 84%, 12% 52%, 14% 52%, 14% 78%, 16% 78%, 16% 46%, 18% 46%,
    18% 82%, 20% 82%, 20% 58%, 22% 58%, 22% 86%, 25% 86%, 25% 34%, 27% 34%,
    27% 80%, 29% 80%, 29% 24%, 31% 24%, 31% 86%, 34% 86%, 34% 56%, 36% 56%,
    36% 76%, 39% 76%, 39% 42%, 41% 42%, 41% 18%, 43% 18%, 43% 82%, 46% 82%,
    46% 38%, 48% 38%, 48% 22%, 50% 22%, 50% 86%, 53% 86%, 53% 44%, 55% 44%,
    55% 84%, 58% 84%, 58% 48%, 60% 48%, 60% 74%, 63% 74%, 63% 56%, 66% 56%,
    66% 86%, 69% 86%, 69% 40%, 71% 40%, 71% 70%, 74% 70%, 74% 84%, 77% 84%,
    77% 58%, 80% 58%, 80% 86%, 84% 86%, 84% 66%, 87% 66%, 87% 82%, 91% 82%,
    91% 74%, 94% 74%, 94% 90%, 100% 90%, 100% 100%
  );
  box-shadow: 0 -1px 0 rgba(168, 248, 255, 0.24);
  z-index: 3;
}

.activity-stage__floor {
  position: absolute;
  left: -10%;
  right: -10%;
  top: 54%;
  bottom: -22%;
  background:
    linear-gradient(180deg, rgba(123, 246, 255, 0.12) 0%, rgba(59, 138, 196, 0.18) 10%, rgba(29, 89, 158, 0.36) 30%, rgba(18, 58, 113, 0.86) 62%, rgba(12, 28, 85, 1) 100%),
    linear-gradient(90deg, rgba(123, 246, 255, 0.96) 0 2px, transparent 2px 76px),
    linear-gradient(180deg, rgba(123, 246, 255, 0.96) 0 2px, transparent 2px 50px);
  background-size: 100% 100%, 76px 100%, 100% 50px;
  transform: perspective(980px) rotateX(74deg);
  transform-origin: center top;
  z-index: 1;
}

.activity-stage__masthead,
.activity-stage__controls,
.activity-stage__header,
.activity-layout,
.activity-hero-card,
.activity-feed {
  position: relative;
}

.activity-stage__masthead {
  display: grid;
  gap: 16px;
  width: min(92vw, 1100px);
  padding: 16px 18px 18px;
  border-radius: var(--profile-radius-lg);
  background:
    linear-gradient(180deg, rgba(16, 43, 71, 0.88), rgba(10, 22, 40, 0.94)),
    rgba(8, 16, 31, 0.9);
  border: 1px solid rgba(126, 207, 255, 0.16);
  box-shadow:
    0 20px 36px rgba(0, 0, 0, 0.24),
    0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  backdrop-filter: blur(12px);
}

.activity-stage__controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(92vw, 980px);
  padding-top: 0;
}

.activity-stage__nav {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.activity-stage__header {
  display: grid;
  justify-items: center;
  gap: 4px;
  width: min(82vw, 760px);
  margin: 0 auto;
  text-align: center;
}

.activity-page-shell .pixel-text {
  color: transparent !important;
  text-shadow: none !important;
  font-size: 0 !important;
  line-height: 0 !important;
}

.activity-stage__title {
  width: min(600px, 92vw);
  margin: 0 auto;
  filter: drop-shadow(0 5px 0 rgba(0, 0, 0, 0.42));
}

.activity-stage__subtitle {
  margin: 0;
  color: #f4fdff;
  font-size: clamp(0.95rem, 1.8vw, 1.35rem);
  line-height: 1.3;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.34);
}

.activity-stage__back,
.activity-stage__portal {
  color: #f4fdff;
  text-decoration: none;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 8px 10px;
  border-radius: var(--profile-radius-xs);
  background: rgba(10, 10, 18, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.16);
}

.activity-stage__portal {
  position: relative;
  overflow: hidden;
  border: 2px solid rgba(168, 248, 255, 0.28);
  background:
    linear-gradient(180deg, rgba(168, 248, 255, 0.14), rgba(13, 26, 54, 0.84) 38%, rgba(7, 14, 32, 0.96)),
    rgba(8, 12, 26, 0.92);
  box-shadow:
    0 8px 20px rgba(0, 0, 0, 0.16),
    0 0 16px rgba(123, 246, 255, 0.14);
}

.activity-stage__back:hover,
.activity-stage__portal:hover,
.activity-stage__back.gamepad-selected,
.activity-stage__portal.gamepad-selected {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.38);
}

.activity-layout {
  display: grid;
  gap: 18px;
  width: min(92vw, 1100px);
}

.activity-hero-card,
.activity-card {
  overflow: hidden;
  border-radius: var(--profile-radius-md);
  border: 2px solid rgba(168, 248, 255, 0.22);
  background:
    linear-gradient(135deg, rgba(168, 248, 255, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(10, 26, 58, 0.96), rgba(5, 12, 26, 0.96));
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset,
    0 0 24px rgba(123, 246, 255, 0.08);
}

.activity-hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 180px;
  gap: 18px;
  padding: 24px;
}

.activity-hero-card__copy {
  display: grid;
  gap: 12px;
}

.activity-hero-card__kicker,
.activity-meta-block__label,
.activity-card__visibility,
.activity-card__meta {
  margin: 0;
  color: #b8fcff;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.activity-hero-card__title {
  margin: 0;
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  line-height: 0.95;
  text-transform: uppercase;
  text-shadow: 0 4px 0 rgba(0, 0, 0, 0.34);
}

.activity-hero-card__summary {
  margin: 0;
  color: rgba(244, 253, 255, 0.82);
  line-height: 1.7;
}

.activity-hero-card__meta {
  display: grid;
  align-content: center;
}

.activity-meta-block {
  display: grid;
  gap: 8px;
  padding: 14px;
  border-radius: var(--profile-radius-xs);
  border: 1px solid rgba(168, 248, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
}

.activity-meta-block__value {
  color: #f4fdff;
  font-size: 1.2rem;
  letter-spacing: 0.08em;
}

.activity-feed {
  display: grid;
  gap: 16px;
}

.activity-card {
  display: grid;
  gap: 12px;
  padding: 20px;
}

.activity-card--placeholder {
  background:
    linear-gradient(180deg, rgba(255, 221, 157, 0.05), rgba(255, 255, 255, 0.03)),
    rgba(255, 255, 255, 0.03);
}

.activity-card__topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.activity-card__date {
  color: rgba(244, 253, 255, 0.72);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.activity-card__title {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.1;
  text-transform: uppercase;
}

.activity-card__summary {
  margin: 0;
  color: rgba(244, 253, 255, 0.84);
  line-height: 1.7;
}

/* Signals saved on this device that have not reached the platform API yet. */
.activity-card--pending {
  border: 1px dashed rgba(255, 221, 157, 0.38);
}

.activity-card__pending {
  margin-right: auto;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 221, 157, 0.14);
  color: #ffdd9d;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.activity-hero-card__notice {
  margin: 12px 0 0;
  color: #ffdd9d;
  font-size: 0.82rem;
  line-height: 1.5;
}

/* Matches the card panel fill so the skyline behind the stage cannot wash out
   the message. */
.activity-empty {
  margin: 0;
  padding: 28px 24px;
  overflow: hidden;
  border-radius: var(--profile-radius-md);
  border: 2px dashed rgba(168, 248, 255, 0.28);
  background:
    linear-gradient(135deg, rgba(168, 248, 255, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(10, 26, 58, 0.96), rgba(5, 12, 26, 0.96));
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.28),
    0 0 24px rgba(123, 246, 255, 0.08);
  color: rgba(244, 253, 255, 0.82);
  line-height: 1.7;
  text-align: center;
}

.activity-empty--offline {
  border-color: rgba(255, 221, 157, 0.38);
  color: #ffdd9d;
}

@media (max-width: 640px) {
  .activity-stage {
    padding: 16px 12px 30px;
  }

  .activity-stage__masthead {
    padding: 14px 12px 16px;
  }

  .activity-stage__controls {
    flex-direction: column;
    align-items: stretch;
  }

  .activity-stage__nav {
    justify-content: space-between;
  }

  .activity-stage__header {
    width: 100%;
  }

  .activity-stage__title {
    max-width: 100%;
  }

  .activity-hero-card {
    grid-template-columns: minmax(0, 1fr);
    padding: 18px 16px;
  }
}