:root {
  color-scheme: light;
  --text: #eaf7ff;
  --accent: #ffcd5a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: #02050c;
  color: var(--text);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.24;
  background:
    radial-gradient(circle at 20% 60%, rgb(255 255 255 / 40%) 0 0.12%, transparent 0.14%),
    radial-gradient(circle at 80% 28%, rgb(255 255 255 / 45%) 0 0.09%, transparent 0.11%),
    radial-gradient(circle at 42% 18%, rgb(255 255 255 / 30%) 0 0.08%, transparent 0.1%);
}

#gameCanvas {
  display: block;
  width: 100vw;
  height: 100vh;
}

.event-banner {
  position: fixed;
  top: 92px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  min-width: min(640px, calc(100vw - 36px));
  max-width: min(740px, calc(100vw - 24px));
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid rgb(255 255 255 / 28%);
  color: #f3fbff;
  font-size: 0.9rem;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: rgb(13 30 48 / 88%);
  box-shadow: 0 12px 24px rgb(0 0 0 / 30%);
  pointer-events: none;
}

.event-banner.hidden {
  display: none;
}

.event-banner[data-tone="negative"] {
  border-color: rgb(255 167 134 / 55%);
  background: rgb(63 27 20 / 86%);
}

.event-banner[data-tone="positive"] {
  border-color: rgb(132 245 224 / 56%);
  background: rgb(16 46 39 / 86%);
}

.event-banner[data-state="incoming"] {
  opacity: 0.75;
}

.event-banner[data-state="active"] {
  opacity: 1;
}

.event-banner[data-state="ending"] {
  animation: banner-pulse 300ms ease-in-out infinite alternate;
}

.hud-overlay {
  position: fixed;
  top: 24px;
  left: 24px;
  right: 240px;
  z-index: 2;
  pointer-events: none;
  animation: fade-in 420ms ease-out;
}

.music-toggle {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 4;
  border: 1px solid rgb(255 255 255 / 35%);
  border-radius: 999px;
  padding: 10px 14px;
  min-width: 170px;
  background:
    linear-gradient(135deg, rgb(12 26 42 / 88%) 0%, rgb(11 36 30 / 88%) 100%);
  color: #e9f7ff;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow:
    0 10px 24px rgb(0 0 0 / 35%),
    inset 0 1px 0 rgb(255 255 255 / 15%);
  transition: transform 120ms ease, filter 160ms ease, border-color 160ms ease;
}

.music-toggle:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.music-toggle.is-muted {
  border-color: rgb(255 149 149 / 44%);
  background:
    linear-gradient(135deg, rgb(36 20 26 / 88%) 0%, rgb(40 19 23 / 88%) 100%);
}

.music-toggle:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.hud-overlay h1 {
  margin: 0;
  font-size: clamp(1.3rem, 2.7vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--accent);
  text-transform: uppercase;
  text-shadow:
    0 2px 16px rgb(0 0 0 / 70%),
    0 0 36px rgb(255 205 90 / 30%);
}

.hud-overlay p {
  margin: 8px 0 0;
  font-size: clamp(0.94rem, 1.7vw, 1.12rem);
  color: #e7f6ff;
  font-weight: 600;
  text-shadow: 0 2px 12px rgb(0 0 0 / 78%);
}

.ecosystem-panel {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 3;
  width: min(360px, calc(100vw - 40px));
  padding: 14px 14px 12px;
  border-radius: 14px;
  border: 1px solid rgb(255 255 255 / 28%);
  background:
    linear-gradient(180deg, rgb(10 27 41 / 84%) 0%, rgb(7 20 32 / 88%) 100%);
  box-shadow:
    0 20px 36px rgb(0 0 0 / 30%),
    inset 0 1px 0 rgb(255 255 255 / 12%);
  backdrop-filter: blur(8px);
}

.ecosystem-panel.hidden {
  display: none;
}

.ecosystem-panel[data-theme="warm"] {
  background: linear-gradient(180deg, rgb(47 24 12 / 88%) 0%, rgb(35 19 10 / 90%) 100%);
}

.ecosystem-panel[data-theme="earth"] {
  background: linear-gradient(180deg, rgb(9 34 42 / 86%) 0%, rgb(8 26 39 / 90%) 100%);
}

.ecosystem-panel[data-theme="storm"] {
  background: linear-gradient(180deg, rgb(30 20 15 / 87%) 0%, rgb(22 20 34 / 90%) 100%);
}

.ecosystem-panel[data-theme="cold"] {
  background: linear-gradient(180deg, rgb(11 23 48 / 88%) 0%, rgb(8 14 35 / 92%) 100%);
}

.ecosystem-panel h2 {
  margin: 0;
  color: #ffcd5a;
  font-size: 1.02rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

#ecosystemPlanetInfo {
  margin: 6px 0 10px;
  color: #ddf4ff;
  font-size: 0.92rem;
  font-weight: 600;
}

.slider-row {
  margin: 8px 0;
}

.slider-row label {
  display: block;
  margin-bottom: 4px;
  color: #d7ecff;
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.slider-row input[type="range"] {
  width: 100%;
}

.slider-meta {
  margin-top: 2px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #e8f7ff;
  font-size: 0.8rem;
}

.slider-meta span[data-state] {
  padding: 1px 7px;
  border-radius: 999px;
  border: 1px solid rgb(255 255 255 / 18%);
  font-size: 0.74rem;
  text-transform: uppercase;
}

.slider-meta span[data-state="good"] {
  color: #80f7cc;
  border-color: rgb(128 247 204 / 42%);
}

.slider-meta span[data-state="warn"] {
  color: #ffd27b;
  border-color: rgb(255 210 123 / 42%);
}

.slider-meta span[data-state="bad"] {
  color: #ff9f9f;
  border-color: rgb(255 159 159 / 42%);
}

.balance-wrap {
  margin-top: 10px;
}

.balance-label {
  display: flex;
  justify-content: space-between;
  color: #ddf5ff;
  font-size: 0.84rem;
  margin-bottom: 4px;
}

.balance-track {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: rgb(255 255 255 / 14%);
}

.balance-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #ff786d 0%, #ffce64 48%, #7bf0c3 100%);
  transition: width 140ms linear;
}

.balance-track.stable-zone {
  box-shadow: 0 0 12px rgb(126 248 211 / 45%);
}

.hold-wrap {
  margin-top: 8px;
}

.hold-label {
  display: flex;
  justify-content: space-between;
  color: #d7ecff;
  font-size: 0.78rem;
  margin-bottom: 4px;
}

.hold-track {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: rgb(255 255 255 / 14%);
}

.hold-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #7ac8ff 0%, #8ef7d6 100%);
  transition: width 120ms linear;
}

.hold-track.hold-broke {
  animation: hold-shake 220ms ease-in-out 1;
}

.ecosystem-attempts,
.ecosystem-pulse {
  margin: 8px 0 0;
  color: #def4ff;
  font-size: 0.78rem;
}

.pulse-btn {
  margin-top: 8px;
  width: 100%;
  border: 1px solid rgb(146 222 255 / 45%);
  border-radius: 10px;
  padding: 8px 10px;
  background: linear-gradient(90deg, rgb(40 85 115 / 86%), rgb(39 126 106 / 86%));
  color: #ebfaff;
  font-weight: 700;
  cursor: pointer;
}

.pulse-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.builder-directions {
  margin-top: 10px;
  padding: 8px 10px;
  border: 1px solid rgb(255 255 255 / 18%);
  border-radius: 10px;
  background: rgb(6 19 31 / 58%);
}

.builder-directions h3 {
  margin: 0;
  color: #ffd269;
  font-size: 0.74rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.builder-directions p {
  margin: 6px 0 0;
  color: #e4f6ff;
  font-size: 0.76rem;
  line-height: 1.35;
}

#ecosystemRuleText,
.ecosystem-status {
  margin: 8px 0 0;
  color: #d6ebfb;
  font-size: 0.8rem;
  line-height: 1.35;
}

.ecosystem-status {
  min-height: 2.2em;
}

#validateEcosystemBtn {
  margin-top: 10px;
  width: 100%;
  border: 0;
  border-radius: 10px;
  padding: 9px 10px;
  background: linear-gradient(90deg, #ffcb62 0%, #ffd884 100%);
  color: #1a2a3f;
  font-weight: 700;
  cursor: pointer;
}

#validateEcosystemBtn:hover {
  filter: brightness(1.03);
}

.ecosystem-summary {
  position: fixed;
  z-index: 6;
  left: 50%;
  top: 56%;
  transform: translate(-50%, -50%);
  width: min(720px, calc(100vw - 32px));
  border-radius: 16px;
  border: 1px solid rgb(255 255 255 / 30%);
  padding: 16px 18px;
  background: rgb(10 27 41 / 90%);
  box-shadow: 0 24px 36px rgb(0 0 0 / 35%);
}

.ecosystem-summary.hidden {
  display: none;
}

.ecosystem-summary h2 {
  margin: 0;
  color: #ffd269;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.ecosystem-summary p {
  margin: 6px 0 0;
  color: #eaf7ff;
}

.summary-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgb(255 255 255 / 24%);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
  margin-top: 8px;
}

.summary-hint {
  margin-top: 10px;
  font-size: 0.8rem;
  color: #cde7f8;
}

.control-hint {
  position: fixed;
  left: 24px;
  bottom: 20px;
  margin: 0;
  z-index: 2;
  color: #e7f4ff;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  pointer-events: none;
  text-shadow: 0 2px 10px rgb(0 0 0 / 80%);
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hold-shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-3px); }
  50% { transform: translateX(3px); }
  75% { transform: translateX(-2px); }
  100% { transform: translateX(0); }
}

@keyframes banner-pulse {
  from { filter: brightness(1); }
  to { filter: brightness(1.18); }
}

@media (max-width: 700px) {
  .hud-overlay {
    top: 16px;
    left: 16px;
    right: 16px;
  }

  .event-banner {
    top: 78px;
    min-width: calc(100vw - 24px);
    max-width: calc(100vw - 24px);
    font-size: 0.75rem;
    padding: 8px 10px;
  }

  .music-toggle {
    top: auto;
    right: 16px;
    bottom: 14px;
    min-width: 150px;
    padding: 9px 12px;
    font-size: 0.8rem;
  }

  .control-hint {
    left: 16px;
    bottom: 56px;
  }

  .ecosystem-panel {
    top: auto;
    right: 12px;
    left: 12px;
    bottom: 52px;
    width: auto;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }
}