:root {
  color-scheme: light;
  --ink: #08233d;
  --ink-soft: rgba(8, 35, 61, 0.72);
  --line: rgba(255, 255, 255, 0.42);
  --glow-cyan: #5fefff;
  --glow-coral: #ff7e97;
  --glow-gold: #ffd86f;
  --glow-lime: #b8ff75;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 14% 12%, rgba(255, 214, 118, 0.42), transparent 20%),
    radial-gradient(circle at 82% 14%, rgba(95, 239, 255, 0.34), transparent 18%),
    radial-gradient(circle at 58% 100%, rgba(255, 126, 151, 0.18), transparent 28%),
    linear-gradient(180deg, #fff5df 0%, #ffe9ef 34%, #d7f5ff 100%);
}

.game-page {
  min-height: 100vh;
  padding: 18px 18px 24px;
}

.topbar {
  width: min(1320px, calc(100vw - 36px));
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

.back-link,
.topbar-note {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  box-shadow: 0 12px 30px rgba(25, 43, 80, 0.14);
}

.back-link {
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.topbar-note {
  margin: 0;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--ink-soft);
}

.page-shell {
  min-height: calc(100vh - 86px);
  display: grid;
  place-items: center;
  padding: 8px 0;
}

.game-shell {
  position: relative;
  width: min(calc(100vw - 40px), calc((100vh - 140px) * 1.6), 1440px);
  aspect-ratio: 16 / 10;
  max-height: calc(100vh - 140px);
  border-radius: 34px;
  overflow: hidden;
  box-shadow:
    0 28px 90px rgba(25, 43, 80, 0.24),
    inset 0 0 0 2px rgba(255, 255, 255, 0.72);
  background: #ffffff;
}

.game-shell:fullscreen {
  width: 100vw;
  height: 100vh;
  max-width: none;
  max-height: none;
  border-radius: 0;
}

#game {
  display: block;
  width: 100%;
  height: 100%;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(13, 20, 39, 0.22);
  backdrop-filter: blur(10px);
}

.hidden {
  display: none;
}

.panel {
  width: min(1040px, 100%);
  padding: 28px;
  border-radius: 32px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 246, 250, 0.9)),
    linear-gradient(135deg, rgba(95, 239, 255, 0.18), rgba(255, 126, 151, 0.16));
  box-shadow:
    0 24px 70px rgba(25, 43, 80, 0.18),
    inset 0 0 44px rgba(255, 216, 111, 0.14);
}

.panel-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.92fr);
  gap: 24px;
  align-items: center;
}

.copy-stack {
  display: grid;
  gap: 16px;
}

.small-panel {
  width: min(470px, 100%);
  text-align: center;
}

.eyebrow,
.status-chips span {
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0;
  font-size: 0.76rem;
  color: var(--ink-soft);
}

h1,
h2 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  line-height: 0.98;
  color: var(--ink);
}

h1 {
  font-size: clamp(2.8rem, 5vw, 4.8rem);
}

h2 {
  font-size: clamp(1.9rem, 4vw, 3rem);
}

.lede {
  margin: 0;
  font-size: 1.04rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

.status-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.status-chips span {
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid rgba(8, 35, 61, 0.08);
  background: rgba(255, 255, 255, 0.62);
  font-size: 0.72rem;
}

.controls-grid {
  display: grid;
  grid-template-columns: auto auto;
  gap: 10px 18px;
  align-items: baseline;
  padding: 18px 20px;
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(255, 249, 239, 0.82)),
    rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(255, 255, 255, 0.86);
}

.controls-grid span {
  color: var(--ink-soft);
}

.controls-grid strong {
  color: var(--ink);
}

.concept-card {
  margin: 0;
  padding: 14px;
  border-radius: 26px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(244, 250, 255, 0.9)),
    rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.86);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.74);
}

.concept-card img {
  display: block;
  width: 100%;
  aspect-ratio: 2454 / 3370;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 20px 40px rgba(25, 43, 80, 0.15);
}

.concept-card figcaption {
  margin-top: 12px;
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 14px 26px;
  font: inherit;
  font-weight: 700;
  color: #07233d;
  background:
    linear-gradient(135deg, #fff19f 0%, #ff93ad 52%, #67efff 100%);
  box-shadow:
    0 14px 28px rgba(255, 126, 151, 0.26),
    inset 0 0 18px rgba(255, 255, 255, 0.32);
  cursor: pointer;
}

button:hover {
  filter: brightness(1.04);
}

button:active {
  transform: translateY(1px);
}

@media (max-width: 980px) {
  .panel-layout {
    grid-template-columns: 1fr;
  }

  .concept-card {
    max-width: 380px;
  }
}

@media (max-width: 720px) {
  .game-page {
    padding: 12px 12px 16px;
  }

  .topbar {
    margin-bottom: 10px;
    flex-direction: column;
    align-items: stretch;
  }

  .page-shell {
    min-height: auto;
  }

  .game-shell {
    width: min(calc(100vw - 24px), calc((100vh - 188px) * 1.6));
    max-height: calc(100vh - 188px);
  }

  .overlay {
    padding: 14px;
  }

  .panel {
    padding: 20px 18px;
    border-radius: 26px;
  }

  .controls-grid {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .concept-card figcaption,
  .lede {
    font-size: 0.95rem;
  }
}