:root {
  --bg-deep: #070b12;
  --bg-mid: #0f1a24;
  --ink: #e8f0e9;
  --muted: #8aa094;
  --accent: #3fb950;
  --accent-dim: #238636;
  --panel: rgba(7, 11, 18, 0.72);
  --line: rgba(63, 185, 80, 0.28);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-deep);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
}

#app {
  position: relative;
  width: 100%;
  height: 100%;
}

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

#canvas:active {
  cursor: grabbing;
}

.brand {
  position: absolute;
  top: clamp(1.25rem, 4vw, 2.5rem);
  left: clamp(1.25rem, 4vw, 2.5rem);
  z-index: 2;
  max-width: min(28rem, 80vw);
  pointer-events: none;
  animation: fade-up 0.9s ease both;
}

.eyebrow {
  font-family: "Press Start 2P", monospace;
  font-size: clamp(0.55rem, 1.4vw, 0.7rem);
  letter-spacing: 0.08em;
  color: var(--accent);
  text-shadow: 0 0 18px rgba(63, 185, 80, 0.35);
  margin-bottom: 0.85rem;
}

.brand h1 {
  font-family: "Press Start 2P", monospace;
  font-size: clamp(1.35rem, 4.2vw, 2.4rem);
  line-height: 1.25;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-shadow:
    2px 0 0 rgba(63, 185, 80, 0.35),
    -2px 0 0 rgba(35, 134, 54, 0.25);
}

.tagline {
  margin-top: 0.9rem;
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 22rem;
}

.hud {
  position: absolute;
  left: 50%;
  bottom: clamp(1.25rem, 4vw, 2.25rem);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  animation: fade-up-center 0.9s 0.15s ease both;
}

.stats {
  font-size: 0.95rem;
  color: var(--muted);
  background: var(--panel);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  padding: 0.55rem 1rem;
  letter-spacing: 0.02em;
}

.stats #year-label {
  color: var(--ink);
  font-weight: 600;
}

.sep {
  opacity: 0.45;
  margin: 0 0.35rem;
}

.years {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  justify-content: center;
}

.years button {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  transition:
    color 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease;
}

.years button:hover {
  color: var(--ink);
}

.years button[aria-current="true"] {
  color: var(--accent);
  border-color: var(--line);
  background: var(--panel);
}

.tooltip {
  position: absolute;
  z-index: 3;
  pointer-events: none;
  background: var(--panel);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 0.85rem;
  padding: 0.55rem 0.75rem;
  transform: translate(-50%, calc(-100% - 12px));
  white-space: nowrap;
}

.tooltip strong {
  color: var(--accent);
  font-weight: 600;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-up-center {
  from {
    opacity: 0;
    transform: translate(-50%, 12px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

@media (max-width: 640px) {
  .tagline {
    display: none;
  }

  .brand h1 {
    font-size: 1.2rem;
  }
}