:root {
  --bg-top: #7bc5ff;
  --bg-bottom: #d7f1ff;
  --panel: rgba(255, 255, 255, 0.28);
  --text: #0f2540;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: radial-gradient(circle at top, var(--bg-top), var(--bg-bottom));
  color: var(--text);
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  overscroll-behavior: none;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(80px 30px at 12% 18%, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0)),
    radial-gradient(90px 32px at 34% 12%, rgba(255, 255, 255, 0.68), rgba(255, 255, 255, 0)),
    radial-gradient(76px 28px at 58% 20%, rgba(255, 255, 255, 0.66), rgba(255, 255, 255, 0)),
    radial-gradient(86px 30px at 78% 14%, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0)),
    radial-gradient(70px 24px at 90% 22%, rgba(255, 255, 255, 0.64), rgba(255, 255, 255, 0));
  z-index: 0;
}

.app {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  gap: 0.75rem;
  padding: calc(env(safe-area-inset-top) + 0.75rem) calc(env(safe-area-inset-right) + 1rem)
    calc(env(safe-area-inset-bottom) + 0.75rem) calc(env(safe-area-inset-left) + 1rem);
  position: relative;
  z-index: 1;
}

.hero {
  width: min(100vw - 2rem, 1100px);
  display: grid;
  place-items: center;
  padding: 0.2rem 0;
}

.hero-logo {
  width: min(96vw, 900px);
  height: auto;
}

.game-stage {
  width: min(100vw - 2rem, 1100px);
  display: grid;
  gap: 0.75rem;
}

#game {
  width: min(100vw - 2rem, 1100px);
  height: auto;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 12px;
  background: #070a10;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.45);
  touch-action: none;
}

.hud {
  width: min(100vw - 2rem, 1100px);
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 0.6rem;
  font-size: clamp(0.78rem, 2.5vw, 0.95rem);
  background: var(--panel);
  padding: 0.45rem 0.55rem;
  border-radius: 10px;
}

.hud p {
  margin: 0;
}

#fullscreen-btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.45);
  background: rgba(16, 33, 56, 0.72);
  color: #f1f8ff;
  border-radius: 8px;
  padding: 0.45rem 0.8rem;
  font: inherit;
}

#fullscreen-btn:active {
  transform: translateY(1px);
}

.lobby {
  width: min(100vw - 2rem, 1100px);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 0.8rem;
  display: grid;
  gap: 0.7rem;
  font-size: 0.9rem;
}

#game-stage:fullscreen {
  width: 100vw;
  height: 100vh;
  display: grid;
  place-items: center;
  padding: 0;
  margin: 0;
  background: #8ed2ff;
}

#game-stage:fullscreen #game {
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  border-radius: 0;
  border: 0;
}

#game-stage:fullscreen .hud {
  display: none;
}

.lobby-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.lobby-header h2,
.lobby-header p {
  margin: 0;
}

.is-hidden {
  display: none !important;
}

.lobby-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.lobby-conn-row {
  grid-template-columns: 1fr;
  opacity: 0.92;
}

.lobby-mode {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.lobby-mode button.active {
  border-color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.24);
}

.lobby-ad-slot {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.5rem;
  min-height: 90px;
}

.lobby-ad {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.55rem;
  align-items: center;
}

.lobby-ad-copy {
  display: grid;
  gap: 0.2rem;
}

.lobby-ad-tag {
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0.8;
}

.lobby-ad-title {
  font-size: 0.94rem;
  font-weight: 700;
}

.lobby-ad-text {
  font-size: 0.82rem;
  opacity: 0.92;
}

.lobby-ad-cta {
  white-space: nowrap;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: 7px;
  padding: 0.45rem 0.65rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--text);
  background: rgba(255, 255, 255, 0.16);
}

.lobby-ad-network {
  display: grid;
  gap: 0.3rem;
}

.lobby-google-ad {
  min-height: 60px;
}

.lobby-panel {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  display: grid;
  gap: 0.45rem;
  padding: 0.5rem;
}

.lobby-panel h3 {
  margin: 0;
  font-size: 1rem;
}

.lobby label {
  display: grid;
  gap: 0.25rem;
}

.lobby input,
.lobby select,
.lobby button {
  font: inherit;
  color: #eef7ff;
  background: rgba(18, 34, 58, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 7px;
  padding: 0.38rem 0.55rem;
}

.lobby-room {
  display: grid;
  gap: 0.45rem;
}

.lobby-codebar {
  display: flex;
  gap: 0.5rem;
  align-items: end;
  flex-wrap: wrap;
}

.lobby-codebar label {
  min-width: 13rem;
  flex: 1;
}

.lobby-room p {
  margin: 0;
}

#lobby-players {
  margin: 0;
  padding-left: 1.2rem;
}

.lobby-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.map-picker {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
}

.map-card {
  display: grid;
  gap: 0.35rem;
  align-items: start;
  text-align: left;
  padding: 0.4rem;
  border-radius: 9px;
  transition: border-color 120ms ease, transform 120ms ease, background 120ms ease;
}

.map-card:active {
  transform: translateY(1px);
}

.map-card.is-active {
  border-color: rgba(255, 255, 255, 0.78);
  background: rgba(255, 255, 255, 0.2);
}

.map-card-thumb {
  width: 100%;
  aspect-ratio: 16 / 7;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.map-card-title {
  font-size: 0.84rem;
}

.map-thumb-crater {
  background:
    radial-gradient(ellipse at 50% 75%, #293415 0 34%, #4f6430 35% 52%, transparent 53%),
    linear-gradient(#2c3f66, #101a2e);
}

.map-thumb-pillars {
  background:
    repeating-linear-gradient(
      to right,
      transparent 0 8%,
      #5e7d39 8% 14%,
      transparent 14% 20%
    ),
    linear-gradient(#31466e, #111b2d);
}

.map-thumb-sky-mines {
  background:
    repeating-linear-gradient(
      to bottom,
      transparent 0 15%,
      #3f3f3f 15% 20%,
      transparent 20% 34%
    ),
    linear-gradient(#2f456f, #121d30);
}

@media (max-width: 900px) {
  .lobby-row {
    grid-template-columns: 1fr;
  }

  .lobby-conn-row {
    grid-template-columns: 1fr;
  }

  .map-picker {
    grid-template-columns: 1fr;
  }

  .lobby-ad {
    grid-template-columns: 1fr;
  }
}