:root{
  --bg:#0b0f17;
  --text:rgba(255,255,255,.92);
  --muted:rgba(255,255,255,.70);
  --stroke:rgba(255,255,255,.14);
  --accent:#4de3ff;
  --accent2:#7c5cff;
}

/* =========================================================
   HEADER ÚNICO (limpio / sin duplicados)
   Compatible con HTML: .header + .logo + .nav + .burger + .nav-mobile
   ========================================================= */

.header{
  position: sticky;
  top: 0;
  z-index: 1000;

  height: 96px;
  padding: 0 22px;

  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 18px;

  background:
    radial-gradient(1200px 520px at 12% 50%, rgba(77,227,255,.16), transparent 55%),
    radial-gradient(900px 460px at 82% 55%, rgba(124,92,255,.16), transparent 55%),
    rgba(11,15,23,.72);

  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.header::after{
  content:"";
  position:absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(77,227,255,.22),
    rgba(124,92,255,.18),
    transparent
  );
  opacity: .85;
  pointer-events:none;
}

/* Logo */
.header .logo{
  display:flex;
  align-items:center;
  min-width: 0;
}

.header .logo img{
  width: 64px;
  height: 64px;
  object-fit: contain;
  border-radius: 18px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.16);
  padding: 10px;
  box-shadow: 0 12px 30px rgba(0,0,0,.35);
  display:block;
}

/* =========================
   NAV ESCRITORIO (ANTES era .nav-desktop)
   AHORA: .nav (porque tu HTML usa .nav)
   ========================= */
.header .nav{
  display:flex;
  align-items:center;
  gap: 22px;
  margin-left: auto;      /* empuja el menú a la derecha */
}

/* Links pill */
.header .nav a{
  position: relative;
  overflow: hidden;

  text-decoration:none;
  color: rgba(255,255,255,.78);
  font-weight: 600;
  font-size: 14px;

  padding: 10px 16px;
  border-radius: 999px;

  border: 1px solid transparent;
  transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;

  white-space: nowrap;
}

/* Luz deslizante en hover */
.header .nav a::after{
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: linear-gradient(
    120deg,
    transparent 30%,
    rgba(255,255,255,0.25),
    transparent 70%
  );
  opacity: 0;
  transform: translateX(-120%);
  transition: all 0.45s ease;
  pointer-events: none;
}

.header .nav a:hover{
  color: rgba(255,255,255,.95);
  background: rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.14);
  transform: translateY(-1px);
}
.header .nav a:hover::after{
  opacity: 1;
  transform: translateX(0);
}

/* Activo */
.header .nav a.active{
  color: #e9f7ff;
  padding: 12px 20px;
  background: rgba(56,189,248,0.18);
  border: 1px solid rgba(56,189,248,0.45);
  box-shadow: 0 12px 28px rgba(56,189,248,0.18);
  animation: pill-enter 0.45s ease-out both;
}

@keyframes pill-enter{
  from{ opacity: 0; transform: translateY(6px) scale(0.96); }
  to{ opacity: 1; transform: translateY(0) scale(1); }
}

/* Burger */
.burger{
  display:none;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.05);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  gap: 6px;
  position: relative;
  z-index: 1001;
}

.burger span{
  display:block;
  width: 22px;
  height: 2.4px;
  background: rgba(255,255,255,.85);
  border-radius: 999px;
  transition: 180ms ease;
}

.burger.burger--open span:nth-child(1){ transform: translateY(5px) rotate(45deg); }
.burger.burger--open span:nth-child(2){ opacity: 0; }
.burger.burger--open span:nth-child(3){ transform: translateY(-5px) rotate(-45deg); }

/* Menú móvil */
.nav-mobile{ display:none; }

@media (max-width: 900px){
  .header{
    height: 86px;
    padding: 0 18px;
  }

  .header .logo img{
    width: 56px;
    height: 56px;
    padding: 8px;
  }

  /* Oculta nav escritorio, muestra burger */
  .header .nav{ display:none; }
  .burger{ display:inline-flex; }

  /* Panel móvil */
  .nav-mobile{
    display:none;
    position: fixed;
    left: 16px;
    right: 16px;
    top: 86px;
    z-index: 999;

    padding: 12px;
    border-radius: 18px;

    background: rgba(11,15,23,.92);
    border: 1px solid rgba(255,255,255,.14);
    backdrop-filter: blur(12px);
    box-shadow: 0 18px 60px rgba(0,0,0,.55);

    max-height: calc(100vh - 120px);
    overflow: auto;
  }

  /* Tu JS debe poner/quitar esta clase */
  .nav-mobile.nav-mobile--open{
    display: grid;
    gap: 10px;
  }

  .nav-mobile a{
    height: 50px;
    display:flex;
    align-items:center;
    justify-content:center;

    text-decoration:none;
    border-radius: 14px;

    color: rgba(255,255,255,.92);
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.12);
  }
}