/* Reset básico */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #05030b;
  --bg-elevated: rgba(13, 10, 25, 0.96);
  --surface-soft: rgba(22, 18, 45, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --accent-1: #8a5bff;
  --accent-2: #41e0ff;
  --accent-3: #ffb86b;
  --text-main: #f8f7ff;
  --text-muted: #a6a1d0;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-soft: 0 22px 60px rgba(0, 0, 0, 0.65);
}

/* Fondo global */
body {
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #141126 0, #05030b 55%, #020006 100%);
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

/* Ruido sutil */
.fu-noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.12;
  background-image: url("data:image/svg+xml,%3Csvg width='160' height='160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='noStitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
  z-index: 0;
}

/* Layout principal */
.fu-header,
.fu-main,
.fu-footer {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding-inline: 20px;
}

/* HEADER */
.fu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 22px;
  padding-bottom: 18px;
}

/* Logo */
.fu-logo {
  display: flex;
  align-items: center;
  gap: 14px;
}

.fu-logo-mark {
  width: 44px;
  height: 44px;
  border-radius: 18px;
  background:
    radial-gradient(circle at 10% 0%, rgba(255, 255, 255, 0.35) 0, transparent 55%),
    conic-gradient(from 210deg, var(--accent-1), var(--accent-2), var(--accent-3), var(--accent-1));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.7);
  position: relative;
  overflow: hidden;
}

.fu-logo-mark::after {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: 16px;
  background: radial-gradient(circle at top, rgba(8, 5, 20, 0.9), #05030b);
}

.fu-logo-mark span {
  position: relative;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fdfbff;
}


.fu-logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.fu-brand {
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.fu-tagline {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Nav */
.fu-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-link {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-decoration: none;
  position: relative;
  padding-block: 4px;
  opacity: 0.55;
}

.nav-link.disabled::after {
  content: "• soon";
  font-size: 0.65rem;
  margin-left: 4px;
  color: rgba(255, 255, 255, 0.3);
}

/* MAIN HERO */
.fu-main {
  padding-bottom: 40px;
}

.fu-hero {
  margin-top: 30px;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

/* Hero izquierda */
.fu-hero-left {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.fu-pill-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(
    135deg,
    rgba(40, 29, 89, 0.95),
    rgba(20, 18, 50, 0.95)
  );
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.65);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.fu-pill-status .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: radial-gradient(circle, #5bffb8 0, #30c073 46%, #0e5d3b 100%);
  box-shadow: 0 0 10px #30c073;
}

.fu-hero h1 {
  font-size: clamp(2.3rem, 3vw, 2.9rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.gradient-text {
  background: linear-gradient(120deg, var(--accent-1), var(--accent-2), #ffffff);
  -webkit-background-clip: text;
  color: transparent;
}

.fu-hero-sub {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 32rem;
}

.fu-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.btn-primary,
.btn-ghost {
  border-radius: var(--radius-pill);
  padding: 9px 18px;
  font-size: 0.85rem;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-main);
  cursor: not-allowed;
  opacity: 0.6;
}

.btn-primary {
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.16), transparent 52%),
    linear-gradient(135deg, rgba(138, 91, 255, 0.95), rgba(65, 224, 255, 0.95));
  border-color: rgba(255, 255, 255, 0.22);
}

.btn-ghost {
  background: rgba(10, 8, 35, 0.8);
}

.fu-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Hero derecha: animación */
.fu-hero-right {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}


.fu-orbit-wrapper {
  width: min(320px, 80vw);
  aspect-ratio: 1 / 1;
  border-radius: 32px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background:
    radial-gradient(circle at top, rgba(161, 120, 255, 0.16), transparent 65%),
    radial-gradient(circle at bottom, rgba(62, 196, 255, 0.16), transparent 70%),
    linear-gradient(145deg, rgba(10, 8, 35, 0.98), rgba(5, 3, 18, 0.98));
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  transition: transform 0.3s ease-out;
}

.fu-orbit-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(138, 91, 255, 0.27), transparent 60%);
  mix-blend-mode: screen;
  opacity: 0.8;
}

/* Núcleo FU */
.fu-orbit-core {
  position: absolute;
  inset: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  border-radius: 32px;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.4), transparent 55%),
    linear-gradient(145deg, #20163e, #0a0718);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.fu-core-inner {
  width: 92px;
  height: 92px;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: conic-gradient(
    from 200deg,
    rgba(138, 91, 255, 0.9),
    rgba(65, 224, 255, 0.9),
    rgba(255, 184, 107, 0.9),
    rgba(138, 91, 255, 0.9)
  );
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.fu-core-inner::after {
  content: "";
  position: absolute;
  inset: 1.5px;
  border-radius: 26px;
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.08), transparent 55%),
    linear-gradient(160deg, #120c2a, #04020d);
}

.core-label {
  position: relative;
  font-weight: 700;
  letter-spacing: 0.32em;
  font-size: 0.78rem;
  color: #fdfcff;
  text-transform: uppercase;
}

/* Anillos de órbita */
.fu-orbit-ring {
  position: absolute;
  inset: 12%;
  border-radius: 999px;
  border: 1px dashed rgba(255, 255, 255, 0.12);
  transform-origin: center;
}

.ring-1 {
  animation: spin 22s linear infinite;
}

.ring-2 {
  inset: 20%;
  animation: spinReverse 32s linear infinite;
}

.ring-3 {
  inset: 32%;
  border-style: solid;
  border-color: rgba(255, 255, 255, 0.06);
  animation: spin 46s linear infinite;
}

/* Units en órbita */
.orbit-unit {
  position: absolute;
  width: 26px;
  height: 18px;
  border-radius: 10px;
  background: rgba(7, 222, 255, 0.14);
  border: 1px solid rgba(106, 235, 255, 0.7);
  box-shadow: 0 0 14px rgba(71, 219, 255, 0.7);
}

.unit-a {
  top: -9px;
  left: 52%;
}

.unit-b {
  bottom: -9px;
  right: 12%;
}

.unit-c,
.unit-d,
.unit-e {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: rgba(138, 91, 255, 0.18);
  border-color: rgba(150, 128, 255, 0.9);
  box-shadow: 0 0 12px rgba(150, 128, 255, 0.7);
}

.unit-c {
  top: -9px;
  right: 30%;
}

.unit-d {
  bottom: 18%;
  left: -9px;
}

.unit-e {
  bottom: -9px;
  right: 10%;
}

/* partículas pequeñas */
.orbit-particle {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
}

.ring-3 .orbit-particle:nth-child(1) {
  top: -4px;
  left: 35%;
}
.ring-3 .orbit-particle:nth-child(2) {
  bottom: 8px;
  right: 25%;
}
.ring-3 .orbit-particle:nth-child(3) {
  top: 40%;
  left: -4px;
}
.ring-3 .orbit-particle:nth-child(4) {
  top: 40%;
  right: -4px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes spinReverse {
  to {
    transform: rotate(-360deg);
  }
}

/* Nota bajo la animación */
.fu-hero-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  max-width: 280px;
  text-align: center;
  margin-top: 8px;
}

/* BLUEPRINT / CARDS */
.fu-blueprint {
  margin-top: 50px;
}

.fu-blueprint h2 {
  font-size: 1.2rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(244, 242, 255, 0.95);
}

.fu-blueprint-sub {
  margin-top: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 32rem;
}

.fu-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.fu-card {
  padding: 14px 14px 16px;
  border-radius: var(--radius-md);
  background: linear-gradient(
    145deg,
    rgba(13, 10, 30, 0.96),
    rgba(5, 4, 16, 0.98)
  );
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.7);
  position: relative;
  overflow: hidden;
}

.fu-card::before {
  content: "";
  position: absolute;
  inset-inline: -30%;
  bottom: -40%;
  height: 60%;
  background: radial-gradient(circle, rgba(143, 98, 255, 0.16), transparent 65%);
  opacity: 0.8;
  pointer-events: none;
}

.fu-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.fu-card-header .label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

.badge {
  font-size: 0.68rem;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(25, 20, 60, 0.9);
}

.fu-card h3 {
  font-size: 0.98rem;
  margin-bottom: 6px;
}

.fu-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.fu-card-footer {
  margin-top: 10px;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.chip-disabled {
  border: 1px dashed rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.48);
}

/* FOOTER */
.fu-footer {
  margin-top: 40px;
  padding: 18px 20px 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .fu-hero {
    grid-template-columns: 1fr;
  }
  .fu-hero-right {
    order: -1;
  }
}

@media (max-width: 768px) {
  .fu-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .fu-nav {
    gap: 12px;
    flex-wrap: wrap;
  }

  .fu-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .fu-grid {
    grid-template-columns: 1fr;
  }
}