@import url("https://fonts.googleapis.com/css2?family=Black+Ops+One&family=Rajdhani:wght@400;600;700&display=swap");

:root {
  --bg-top: #050b16;
  --bg-bottom: #0f2745;
  --panel-bg: rgba(8, 14, 28, 0.84);
  --panel-border: rgba(117, 201, 255, 0.36);
  --text-main: #f2f5ff;
  --text-dim: #9eb3d8;
  --accent-hot: #ff6b35;
  --accent-cool: #36c2ff;
  --danger: #ff476f;
  --shadow-strong: 0 24px 54px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  position: relative;
  color: var(--text-main);
  font-family: "Rajdhani", sans-serif;
  background:
    radial-gradient(circle at 18% 15%, rgba(255, 107, 53, 0.22), transparent 26%),
    radial-gradient(circle at 82% 85%, rgba(54, 194, 255, 0.23), transparent 24%),
    linear-gradient(160deg, var(--bg-top), var(--bg-bottom));
}

body::before {
  content: "";
  position: fixed;
  inset: -30%;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.028) 0,
      rgba(255, 255, 255, 0.028) 1px,
      transparent 1px,
      transparent 42px
    );
  transform: perspective(450px) rotateX(64deg) translateY(35%);
  pointer-events: none;
  opacity: 0.26;
}

#sceneHost {
  position: fixed;
  inset: 0;
}

#sceneHost canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.panel {
  position: fixed;
  left: 50%;
  top: 50%;
  width: min(92vw, 480px);
  padding: 1.45rem 1.5rem 1.25rem;
  border-radius: 1.05rem;
  border: 1px solid var(--panel-border);
  background: linear-gradient(145deg, var(--panel-bg), rgba(12, 21, 39, 0.93));
  box-shadow: var(--shadow-strong);
  transform: translate(-50%, -50%);
  text-align: center;
  backdrop-filter: blur(8px);
  transition: opacity 200ms ease, transform 200ms ease;
  z-index: 10;
}

.panel.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -48%);
}

.eyebrow {
  margin: 0;
  font-size: 0.86rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-cool);
}

.eyebrow.danger {
  color: var(--danger);
}

h1,
h2 {
  margin: 0.5rem 0 0.6rem;
  font-family: "Black Ops One", cursive;
  font-weight: 400;
  letter-spacing: 0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
}

h2 {
  font-size: clamp(1.65rem, 4vw, 2.2rem);
}

.lead {
  margin: 0 auto 0.9rem;
  width: min(88%, 430px);
  color: var(--text-dim);
  font-size: 1.02rem;
  line-height: 1.24;
}

.controls-card {
  margin: 0.85rem auto 1rem;
  text-align: left;
  width: min(87%, 340px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 0.85rem;
  padding: 0.55rem 0.72rem;
  background: rgba(255, 255, 255, 0.05);
}

.controls-card p {
  margin: 0.2rem 0;
  color: #dce8ff;
  font-size: 0.99rem;
}

.controls-card span {
  display: inline-block;
  width: 58px;
  color: var(--accent-cool);
  font-weight: 700;
}

button {
  border: none;
  border-radius: 999px;
  padding: 0.68rem 1.45rem;
  font-family: inherit;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  color: #0e141f;
  background: linear-gradient(110deg, #ff914d, var(--accent-hot));
  box-shadow: 0 10px 22px rgba(255, 107, 53, 0.45);
  transition: transform 120ms ease, filter 120ms ease;
}

button:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0);
}

button.ghost {
  margin-left: 0.55rem;
  color: #ebf4ff;
  border: 1px solid rgba(162, 198, 245, 0.5);
  background: rgba(91, 122, 170, 0.2);
  box-shadow: none;
}

.best-score {
  margin-top: 0.95rem;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.actions {
  margin-top: 0.4rem;
}

.hidden {
  display: none;
}

@media (max-width: 720px) {
  .panel {
    padding: 1.2rem 1rem 1rem;
  }
  .controls-card {
    width: 100%;
  }
}