:root {
  --color-bg: #0a0a0a;
  --color-text: #f2ede3;
  --color-label: #7fff8f;
  --color-accent: #ff5a3c;
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-mono: 'Courier New', monospace;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-serif);
}

.scene {
  position: relative;
  width: 100vw;
  height: 100vh;  /* fallback pra navegadores sem dvh */
  height: 100dvh; /* no iOS Safari, 100vh é a viewport grande e cortaria o CTA */
  overflow: hidden;
}

.hero-text {
  position: absolute;
  left: 2rem;
  top: 50%;
  transform: translateY(-50%);
  max-width: 70%;
  z-index: 5;
}

.hero-headline {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  line-height: 1.15;
  color: var(--color-text);
  margin: 0 0 1rem 0;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-label);
  margin: 0 0 1.5rem 0;
}

.hero-headline .accent {
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-actions button,
.whatsapp-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1.25rem;
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
  display: inline-block;
}

#open-panel {
  background: transparent;
  border: 1px solid var(--color-text);
  color: var(--color-text);
}

.whatsapp-link {
  background: var(--color-accent);
  border: 1px solid var(--color-accent);
  color: #0a0a0a;
}

/* Link discreto pra alternar entre variantes de KV durante validação
   informal com terceiros — não é UI final do produto. */
.kv-toggle {
  position: fixed;
  bottom: 0.5rem;
  right: 0.5rem;
  z-index: 10;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text);
  opacity: 0.25;
  text-decoration: none;
  padding: 0.5rem;
}

.kv-toggle:hover,
.kv-toggle:focus {
  opacity: 0.7;
}