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

.subidc { 
    vertical-align:sub;            /*subindice*/ 
    font-size:12pt;
}

body {
  font-family: 'Playfair Display', serif;
  color: #f8f8f8;
  background-color: #000;
  overflow-x: hidden;
}

img {
  height: 7em;
  margin: auto;
}

/* Fondo partículas */
#particles-js {
  position: fixed;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: radial-gradient(circle at center, #000000 0%, #0a0a0a 100%);
}

/* Hero */
.hero {
  text-align: center;
  padding: 6rem 2rem 8rem;
  background: transparent;
}

.hero h1 {
  font-family: 'Cinzel', serif;
  font-size: 5rem;
  color: #d4af37;
  letter-spacing: 3px;
}

.hero h2 {
  font-size: 1.3rem;
  margin: 1rem 0;
  color: #ccc;
}

.hero p {
  color: #999;
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.btn {
  padding: 0.8rem 1.6rem;
  border: 2px solid #d4af37;
  text-decoration: none;
  color: #d4af37;
  border-radius: 30px;
  transition: all 0.3s ease;
}

.btn.primary {
  background-color: #d4af37;
  color: #000;
}

.btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 10px #d4af37;
}

/* Concept */
.concept {
  text-align: center;
  padding: 6rem 2rem;
  background: rgba(10, 10, 10, 0.8);
}

.concept h2 {
  color: #f5d76e;
  font-family: 'Cinzel', serif;
  margin-bottom: 1rem;
}

.concept p {
  color: #ccc;
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Attributes */
.attributes {
  padding: 6rem 2rem;
  text-align: center;
}

.attributes h2 {
  color: #f5d76e;
  font-family: 'Cinzel', serif;
  margin-bottom: 2rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.2rem;
  max-width: 900px;
  margin: 0 auto;
}

.attr {
  padding: 1rem;
  border: 1px solid #d4af37;
  border-radius: 10px;
  color: #eee;
  background: rgba(20, 20, 20, 0.6);
}

.attributes .intro {
  max-width: 800px;
  margin: 0 auto 3rem;
  color: #ccc;
  line-height: 1.6;
  font-size: 1rem;
}

.attributes .attr h3 {
  color: #f5d76e;
  font-family: 'Cinzel', serif;
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
}

.attributes .attr p {
  color: #ccc;
  font-size: 0.9rem;
  line-height: 1.4;
}

.math-note {
  margin-top: 3rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  background: rgba(20, 20, 20, 0.6);
  border: 1px solid #d4af37;
  padding: 1.5rem;
  border-radius: 12px;
  color: #eee;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Launch */
.launch {
  text-align: center;
  padding: 6rem 2rem;
  background: linear-gradient(180deg, #000, #111);
}

.launch h2 {
  color: #d4af37;
  font-family: 'Cinzel', serif;
  margin-bottom: 1rem;
}

.launch p {
  color: #aaa;
  margin-bottom: 2rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 3rem 1rem;
  border-top: 1px solid #222;
  color: #888;
  font-size: 0.9rem;
}

footer .social a {
  color: #d4af37;
  text-decoration: none;
  margin: 0 0.5rem;
}

/* Rarities */

.rarities {
  max-width: 900px;
  margin: 4rem auto;
  color: #ccc;
}

.rarities h2 {
  color: #f5d76e;
  text-align: center;
  font-family: 'Cinzel', serif;
  margin-bottom: 1rem;
}

.rarities p {
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.5;
  margin-bottom: 2rem;
}

details {
  background: rgba(30, 30, 30, 0.6);
  border: 1px solid #d4af37;
  border-radius: 8px;
  margin-bottom: 1rem;
  padding: 0.8rem 1rem;
}

summary {
  cursor: pointer;
  font-weight: bold;
  color: #f5d76e;
}

summary:hover {
  color: #fff;
}

pre {
  margin-top: 0.5rem;
  font-family: 'Roboto Mono', monospace;
  font-size: 0.85rem;
  color: #eee;
  white-space: pre-wrap;
}

/* ---------- Global section ---------- */
.hero-symbols {
  position: relative;
  width: 100%;
  height: 160px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- Container ---------- */
.symbol-wrapper {
  position: relative;
  width: 110px;
  height: 110px;
}

/* ---------- Spiral ---------- */
.spiral {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid rgba(218, 165, 32, 0.3);
  border-radius: 50%;
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.25);
  animation: rotateClockwise 18s linear infinite;
}

/* ---------- Phi symbol ---------- */
.phi {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: "Times New Roman", serif;
  font-size: 96px;
  color: #FFD700;
  text-shadow: 0 0 15px rgba(255, 215, 0, 0.8);
  animation: rotateCounter 24s linear infinite;
}

/* ---------- Animations ---------- */
@keyframes rotateClockwise {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes rotateCounter {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(-360deg); }
}

/* ---------- Optional Glow ---------- */
.hero-symbols::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.08), transparent 70%);
  filter: blur(25px);
  z-index: 0;
}