/* ===== Variables base ===== */
:root{
  --bg:#0b1020;
  --txt:#eaf1ff;
  --muted:#b7c1d9;
  --brand1:#6a11cb;
  --brand2:#2575fc;
  --glass: rgba(255,255,255,.08);
  --glass-bd: rgba(255,255,255,.18);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 20px;
}

/* Reset moderno */
*{box-sizing:border-box}
html,body{height:100%}
body{
  font-family: ui-sans-serif, system-ui, -apple-system, "Inter", Roboto, "Segoe UI", Arial, sans-serif;
  color: var(--txt);
  background: radial-gradient(1200px 800px at 10% -10%, #2b2b73 0%, transparent 55%),
              radial-gradient(900px 600px at 90% 10%, #1a4b7a 0%, transparent 50%),
              #0c0f1f;
  margin:0;
  line-height:1.5;
}

/* Aurora animada (debajo del contenido) */
.aurora{
  position:fixed; inset:-20% -10% auto -10%;
  height:70vh; z-index:-1; filter: blur(40px) saturate(140%);
  background:
   radial-gradient(closest-side at 20% 30%, rgba(106,17,203,.55), transparent 60%),
   radial-gradient(closest-side at 80% 40%, rgba(37,117,252,.55), transparent 60%),
   radial-gradient(closest-side at 50% 80%, rgba(150, 80, 255, .45), transparent 60%);
  animation: float 16s ease-in-out infinite alternate;
}
@keyframes float{
  0%{ transform: translateY(-4%) scale(1) }
  100%{ transform: translateY(4%) scale(1.05) }
}

/* NAV */
.nav{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(10px);
  background: linear-gradient(to right, rgba(10,12,22,.65), rgba(12,16,31,.35));
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 24px; border-bottom: 1px solid var(--glass-bd);
}
.nav a{ color:var(--txt); text-decoration:none; margin-left:18px; opacity:.9 }
.nav a:hover{ opacity:1 }
.brand{ font-weight:700; letter-spacing:.3px }

/* HERO */
.hero{
  display:grid; grid-template-columns: 1.2fr .8fr; gap:32px;
  padding: 72px 24px; max-width:1100px; margin:0 auto;
}
.hero__content h1{ font-size: clamp(32px, 5vw, 56px); margin: 12px 0 8px }
.grad{ background:linear-gradient(90deg, var(--brand1), var(--brand2));
  -webkit-background-clip:text; background-clip:text; color:transparent }
.sub{ color:var(--muted); max-width:60ch }
.hero__media{ display:grid; place-items:center; }
.hero__media img{ width:100%; max-width:520px; border-radius:24px; box-shadow:var(--shadow); transform:translateZ(0); transition: transform .2s ease-out }
.avatar{ position:absolute; width:128px; height:128px; border-radius:50%; right:2rem; bottom:-1.5rem; border:3px solid rgba(255,255,255,.5) }

/* Buttons */
.btn{ padding:12px 18px; border-radius:14px; display:inline-flex; align-items:center; gap:8px; cursor:pointer; border:0; text-decoration:none; transition: transform .12s ease, box-shadow .2s ease }
.btn:active{ transform: translateY(1px) }
.btn--primary{ background: linear-gradient(135deg, var(--brand1), var(--brand2)); color:white; box-shadow: var(--shadow) }
.btn--light{ background: rgba(255,255,255,.1); color:white; border:1px solid var(--glass-bd) }
.btn--ghost{ padding:8px 14px; border:1px solid var(--glass-bd); background:transparent }

/* Sections */
section{ max-width:1100px; margin:54px auto; padding:0 24px }
.section-head p{ color:var(--muted) }

/* Glass card */
.glass{
  background: var(--glass);
  border: 1px solid var(--glass-bd);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

/* Skills */
.skills h2{ margin-bottom:12px }
.chip-row{ display:flex; gap:12px; overflow:hidden; padding:12px 0 }
.chip{ padding:10px 14px; border-radius:999px; background:rgba(255,255,255,.08); border:1px solid var(--glass-bd) }
.marquee{ white-space:nowrap; mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee .chip{ display:inline-flex; margin-right:12px; animation: scroll 22s linear infinite }
.marquee .chip:nth-child(odd){ animation-duration: 26s }
@keyframes scroll{ from{ transform: translateX(0)} to{ transform: translateX(-100%) } }
.skills__banner{ margin-top:18px; text-align:center }
.skills__banner img{ width:100%; border-radius:16px; box-shadow: var(--shadow) }
.skills__banner figcaption{ color:var(--muted); margin-top:8px; }

/* Gallery proyecto */
.gallery{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.card img{ width:100%; display:block; border-radius:14px }
.card figcaption{ color:var(--muted); padding:8px 6px 10px }
.stack{ display:flex; flex-wrap:wrap; gap:8px; margin-top:16px }
.badge{ padding:8px 12px; border-radius:999px; background:rgba(255,255,255,.06); border:1px solid var(--glass-bd) }

/* Timeline */
.timeline .timeitem{ padding:18px 20px; margin:16px 0; position:relative }
.timeline .timeitem::before{
  content:""; position:absolute; left:-10px; top:18px; width:8px; height:8px; border-radius:50%;
  background: linear-gradient(135deg, var(--brand1), var(--brand2));
}

/* Educación */
.edu-list{ padding-left:18px; line-height:1.7 }
.edu-list li{ margin-bottom:6px }

/* About */
.about p{ color:var(--muted) }

/* Contacto */
#contactForm {
    padding: 20px; /* Agregar espacio interno para separar el contenido del borde de la sección */
}
.contact form{ display:grid; gap:12px; max-width:720px; margin:12px auto }
.contact input, .contact textarea{
  width:100%; padding:12px 14px; border-radius:12px; border:1px solid var(--glass-bd);
  background: rgba(255,255,255,.06); color:var(--txt)
}
.contact .form-hint{ color:var(--muted); font-size:.95rem }

/* Footer */
.footer{ border-top:1px solid var(--glass-bd); padding:22px 24px; color:var(--muted); display:flex; gap:12px; align-items:center; justify-content:space-between }
.footer a{ color:var(--txt); opacity:.8; text-decoration:none }
.footer a:hover{ opacity:1 }

/* Reveal on scroll */
.reveal{ opacity:0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease }
.reveal.in{ opacity:1; transform:none }

/* Toast */
#toast{ position:fixed; inset:auto 24px 24px auto; background:#0f172a; color:#fff; padding:12px 16px; border-radius:12px; box-shadow: var(--shadow); opacity:0; transform: translateY(8px); transition: .3s }
#toast.show{ opacity:1; transform:none }

/* Responsive */
@media (max-width: 980px){
  .hero{ grid-template-columns:1fr; text-align:center }
  .hero__media img{ max-width:420px }
  .gallery{ grid-template-columns:repeat(2,1fr) }
}
@media (max-width: 560px){
  .gallery{ grid-template-columns:1fr }
}