* {
  box-sizing: border-box;
  transition: background-color 0.8s ease, background-image 0.8s ease;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: #e6e0f8;
  color: #2d3436;
  user-select: none;
  overflow: hidden;
  position: relative;
}

/* Padrões Geométricos e Geometria Sagrada / Fractais Refinados */
.pattern-1 {
  background-image: 
radial-gradient(circle at 50% 50%, rgba(136, 84, 208, 0.12) 0%, transparent 60%),
radial-gradient(circle at 0% 0%, rgba(108, 92, 231, 0.15) 25%, transparent 50%),
radial-gradient(circle at 100% 0%, rgba(108, 92, 231, 0.15) 25%, transparent 50%),
radial-gradient(circle at 0% 100%, rgba(108, 92, 231, 0.15) 25%, transparent 50%),
radial-gradient(circle at 100% 100%, rgba(108, 92, 231, 0.15) 25%, transparent 50%),
repeating-radial-gradient(circle at 50% 50%, transparent 0, transparent 20px, rgba(255, 255, 255, 0.4) 21px, transparent 22px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%, 100% 100%, 80px 80px;
}

.pattern-2 {
  background-image: 
linear-gradient(30deg, rgba(255, 255, 255, 0.35) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.35) 87.5%, rgba(255, 255, 255, 0.35)),
linear-gradient(150deg, rgba(255, 255, 255, 0.35) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.35) 87.5%, rgba(255, 255, 255, 0.35)),
linear-gradient(30deg, rgba(255, 255, 255, 0.35) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.35) 87.5%, rgba(255, 255, 255, 0.35)),
linear-gradient(150deg, rgba(255, 255, 255, 0.35) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.35) 87.5%, rgba(255, 255, 255, 0.35)),
linear-gradient(60deg, rgba(165, 94, 234, 0.1) 25%, transparent 25.5%, transparent 75%, rgba(165, 94, 234, 0.1) 75%),
linear-gradient(60deg, rgba(165, 94, 234, 0.1) 25%, transparent 25.5%, transparent 75%, rgba(165, 94, 234, 0.1) 75%);
  background-size: 80px 140px;
  background-position: 0 0, 0 0, 40px 70px, 40px 70px, 0 0, 40px 70px;
}

.pattern-3 {
  background-image: 
radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.5) 10%, transparent 60%),
radial-gradient(circle at 50% 100%, rgba(136, 84, 208, 0.15) 10%, transparent 60%),
repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.2) 0px, rgba(255, 255, 255, 0.2) 2px, transparent 2px, transparent 16px),
repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.2) 0px, rgba(255, 255, 255, 0.2) 2px, transparent 2px, transparent 16px);
  background-size: 100% 100%, 100% 100%, 64px 64px, 64px 64px;
}

.pattern-4 {
  background-image: 
repeating-radial-gradient(circle at 30% 40%, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.4) 12px, transparent 13px, transparent 28px),
repeating-radial-gradient(circle at 70% 60%, rgba(136, 84, 208, 0.15), rgba(136, 84, 208, 0.15) 12px, transparent 13px, transparent 28px);
  background-size: 100% 100%;
}

.card {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  padding: 2rem 2.5rem;
  border-radius: 24px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
  text-align: center;
  max-width: 90vw;
  width: 480px;
  z-index: 2;
}

.subtitle {
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #636e72;
  margin-bottom: 1rem;
  font-weight: 600;
}

.grid-3d-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0.5rem 0 1rem 0;
}

#matrix3d {
  background: rgba(20, 20, 30, 0.85);
  border-radius: 16px;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 4px 12px rgba(0,0,0,0.1);
}

.comparison-box {
  display: flex;
  justify-content: space-around;
  align-items: center;
  margin: 1rem 0;
  padding: 0.5rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.02);
}

.comparison-item {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: #2d3436;
  display: flex;
  align-items: center;
  gap: 1px;
}

.time-part {
  color: #4b6584;
}

.op-part {
  font-size: 1.2rem;
  color: #8854d0;
  margin: 0 2px;
}

.rand-part {
  color: #20bf6b;
}

.entropy-info {
  font-family: monospace;
  font-size: 0.9rem;
  color: #718093;
  margin-top: 1rem;
  display: flex;
  justify-content: space-between;
  border-top: 1px dashed rgba(0,0,0,0.1);
  padding-top: 1rem;
}

.accent-tag {
  font-weight: 600;
  color: #a55eea;
}

button {
  margin-top: 1.2rem;
  padding: 0.8rem 1.8rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
  background-color: #8854d0;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(136, 84, 208, 0.25);
  transition: all 0.2s ease;
}

button:hover {
  background-color: #778ca3;
  transform: translateY(-1px);
}

button:disabled {
  background-color: #b2bec3;
  cursor: not-allowed;
  box-shadow: none;
}

.install-btn {
  display: none;
  margin-top: 0.8rem;
  background-color: #4b6584;
  box-shadow: 0 4px 12px rgba(75, 101, 132, 0.25);
}