/* ====== Variables CSS ====== */
:root {
  /* Colores */
  --bg: #0b1020;
  --fg: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --glass: rgba(255, 255, 255, 0.08);
  --stroke: rgba(255, 255, 255, 0.14);
  --accent: #7c5cff;
  --accent2: #00d3ff;
  
  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 10px 40px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.45);
  
  /* Radios */
  --radius-sm: 10px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 999px;
  
  /* Espaciado (sistema de 4px) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  
  /* Transiciones */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* ====== Reset y Base ====== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--fg);
  background: 
    radial-gradient(1200px 700px at 20% 10%, rgba(124, 92, 255, 0.24), transparent 55%),
    radial-gradient(900px 600px at 80% 20%, rgba(0, 211, 255, 0.18), transparent 55%),
    var(--bg);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ====== Tipografía ====== */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 var(--space-md) 0;
  letter-spacing: -0.02em;
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.8rem);
  line-height: 1.05;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  color: var(--muted);
  line-height: 1.6;
  margin: 0 0 var(--space-lg) 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

small {
  color: var(--muted);
  font-size: 0.875rem;
}

/* ====== Utilidades ====== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.wrap {
  width: min(1120px, 92vw);
  margin: 0 auto;
  padding: var(--space-xl) 0 var(--space-2xl);
}

/* ====== Background Effects ====== */
.bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}

.blob {
  position: absolute;
  width: 520px;
  height: 520px;
  filter: blur(80px);
  opacity: 0.5;
  border-radius: 50%;
  mix-blend-mode: screen;
  transform: translateZ(0);
  animation: blob-float 20s ease-in-out infinite;
}

.blob--a {
  left: -140px;
  top: -120px;
  background: radial-gradient(circle at 30% 30%, var(--accent), transparent 60%);
  animation-delay: 0s;
}

.blob--b {
  right: -180px;
  top: 60px;
  background: radial-gradient(circle at 30% 30%, var(--accent2), transparent 60%);
  animation-delay: -10s;
}

@keyframes blob-float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(30px, -50px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.9);
  }
}

.grain {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.18'/%3E%3C/svg%3E");
  opacity: 0.14;
  z-index: -1;
  pointer-events: none;
}

/* ====== Header ====== */
.top {
  width: min(1120px, 92vw);
  margin: var(--space-lg) auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  border: 1px solid var(--stroke);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 650;
  transition: opacity var(--transition-fast);
}

.brand:hover {
  opacity: 0.8;
}

.brand__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 6px rgba(124, 92, 255, 0.15);
  flex-shrink: 0;
}

.brand__short {
  display: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav a {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  color: rgba(255, 255, 255, 0.86);
  transition: background var(--transition-fast);
}

.nav a:hover,
.nav a:focus {
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.nav a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.pill {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.07);
}

/* ====== Avatar ====== */
.avatar-wrapper {
  width: 160px;
  height: 160px;
  margin-bottom: var(--space-xl);
}

.avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.35);
  box-shadow: 
    0 0 0 8px rgba(255, 255, 255, 0.04),
    0 18px 40px rgba(0, 0, 0, 0.45);
  filter: grayscale(5%) contrast(1.08);
}

/* ====== Hero Section ====== */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--space-2xl);
  align-items: center;
  padding: var(--space-2xl) 0 var(--space-xl);
}

.hero__intro {
  font-size: 1.05rem;
  margin-bottom: var(--space-lg);
}

.accent {
  display: inline-block;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.chip {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.chip:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
}

/* ====== 3D Carousel ====== */
.hero__showcase {
  display: flex;
  justify-content: center;
}

.stage {
  width: min(600px, 92vw);
  height: 550px;
  perspective: 1400px;
  position: relative;
  display: grid;
  place-items: center;
}

.ring {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateX(10deg) rotateY(0deg);
  transition: transform 0.08s linear;
  cursor: grab;
  user-select: none;
  touch-action: none;
}

.ring.is-autospin {
  animation: spin 30s linear infinite;
} 

.ring.is-dragging {
  cursor: grabbing;
}

@keyframes spin {
  from {
    transform: rotateY(0deg) rotateX(10deg);
  }
  to {
    transform: rotateY(360deg) rotateX(10deg);
  }
}

.card {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 310px;
  min-height: 240px;
  margin-left: -155px;
  margin-top: -120px;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, #151a2e, #10152a);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: var(--shadow-lg);
  padding: var(--space-lg);
  transform-style: preserve-3d;
  transform: rotateY(calc(var(--i) * 60deg)) translateZ(320px);
  transition: border-color var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.card:hover,
.card:focus {
  border-color: rgba(124, 92, 255, 0.5);
  outline: none;
}

.card:focus-visible {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg), 0 0 0 3px rgba(124, 92, 255, 0.3);
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
  font-weight: 700;
}

.card p {
  margin: 0 0 var(--space-md) 0;
  font-size: 0.95rem;
  line-height: 1.5;
  flex-grow: 1;
}

.tags {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.tags span {
  font-size: 0.8rem;
  padding: 5px var(--space-sm);
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.2);
  color: rgba(255, 255, 255, 0.8);
}

.card__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px var(--space-lg);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  transition: all var(--transition-fast);
  font-weight: 500;
  align-self: flex-start;
  margin-top: auto;
}

.card__link:hover,
.card__link:focus {
  background: rgba(124, 92, 255, 0.2);
  border-color: rgba(124, 92, 255, 0.5);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(124, 92, 255, 0.3);
}

.stage__hint {
  position: absolute;
  bottom: var(--space-sm);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.62);
  text-align: center;
  width: 100%;
  padding: 0 var(--space-md);
}

.hint-mobile {
  display: none;
}

/* ====== Grid Panels ====== */
.grid {
  margin-top: var(--space-2xl);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.panel {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.panel:hover {
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-4px);
}

.panel ul {
  margin: var(--space-md) 0 0 var(--space-xl);
  color: var(--muted);
  padding: 0;
}

.panel li {
  margin-bottom: var(--space-sm);
}

/* ====== Formulario ====== */
.form {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.form-group {
  flex: 1;
}

.form input {
  width: 100%;
  padding: 11px var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(0, 0, 0, 0.15);
  color: var(--fg);
  outline: none;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  font-size: 1rem;
}

.form input:focus {
  border-color: rgba(124, 92, 255, 0.55);
  background: rgba(0, 0, 0, 0.25);
}

.form input:invalid:not(:placeholder-shown) {
  border-color: rgba(255, 92, 92, 0.55);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.06));
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
}

.btn:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.form-message {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  display: none;
}

.form-message.success {
  display: block;
  background: rgba(76, 175, 80, 0.15);
  border: 1px solid rgba(76, 175, 80, 0.3);
  color: #81c784;
}

.form-message.error {
  display: block;
  background: rgba(244, 67, 54, 0.15);
  border: 1px solid rgba(244, 67, 54, 0.3);
  color: #e57373;
}

/* ====== Social Links ====== */
.social-links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.05);
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  font-size: 0.95rem;
}

.social-link:hover,
.social-link:focus {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.social-link svg {
  flex-shrink: 0;
}

/* ====== Footer ====== */
.foot {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
  font-size: 0.95rem;
}

.muted {
  color: var(--muted);
}

/* ====== Responsive ====== */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .grid {
    grid-template-columns: 1fr;
  }
  
  .brand__full {
    display: none;
  }
  
  .brand__short {
    display: inline;
  }
}

@media (max-width: 640px) {
  .wrap {
    width: 94vw;
  }
  
  .top {
    width: 94vw;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-md);
  }
  
  .nav {
    width: 100%;
    justify-content: center;
  }
  
  .avatar-wrapper {
    width: 120px;
    height: 120px;
  }
  
  .stage {
    height: 480px;
    width: 100%;
  }
  
  .ring {
    width: 100%;
    height: 100%;
  }
  
  .card {
    width: 280px;
    min-height: 220px;
    margin-left: -140px;
    margin-top: -110px;
    transform: rotateY(calc(var(--i) * 60deg)) translateZ(280px);
  }
  
  .hint-desktop {
    display: none;
  }
  
  .hint-mobile {
    display: inline;
  }
  
  .form {
    flex-direction: column;
  }
  
  .social-links {
    flex-direction: column;
  }
  
  h1 {
    font-size: 2rem;
  }
}

/* ====== Accesibilidad ====== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .ring {
    animation: none;
  }
  
  .blob {
    animation: none;
  }
}

/* Focus visible para accesibilidad de teclado */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Mejora de contraste para texto pequeño */
@media (prefers-contrast: high) {
  :root {
    --muted: rgba(255, 255, 255, 0.85);
  }
}