:root {
  --bg-deep: #080511;
  --bg-card: rgba(23, 16, 41, 0.85);
  --gold-glow: #e2b96f;
  --gold-dark: #a37c35;
  --purple-accent: #9d4edd;
  --text-light: #f7f4ea;
  --text-muted: #aba2bf;
  --border-mystic: rgba(226, 185, 111, 0.25);
}

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

body {
  background-color: var(--bg-deep);
  color: var(--text-light);
  font-family: 'Cinzel', 'Georgia', serif;
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(157, 78, 221, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(226, 185, 111, 0.08) 0%, transparent 40%);
  min-height: 100vh;
  padding-bottom: 40px;
}

.topo-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 2rem;
  border-bottom: 1px solid var(--border-mystic);
  background: rgba(8, 5, 17, 0.8);
  backdrop-filter: blur(10px);
}

.logo-oraculo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--gold-glow);
  text-decoration: none;
  letter-spacing: 2px;
}

.badge-saldo {
  background: rgba(226, 185, 111, 0.15);
  border: 1px solid var(--gold-glow);
  color: var(--gold-glow);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.9rem;
}

.container {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.card-mistic {
  background: var(--bg-card);
  border: 1px solid var(--border-mystic);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 15px rgba(226, 185, 111, 0.1);
  margin-bottom: 2rem;
}

.btn-oraculo {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold-glow), var(--gold-dark));
  color: #11091e;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border: none;
  border-radius: 30px;
  padding: 12px 28px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn-oraculo:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(226, 185, 111, 0.6);
}

.grid-opcoes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.preview-box {
  width: 100%;
  max-width: 320px;
  height: 320px;
  border: 2px dashed var(--gold-glow);
  border-radius: 12px;
  margin: 1.5rem auto;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.3);
}

.preview-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.loader {
  display: none;
  text-align: center;
  margin: 1.5rem 0;
  color: var(--gold-glow);
}