/* Estilos modernos para el portfolio */
:root{
  --bg-1: #071021;
  --bg-2: #071827;
  --glass: rgba(255,255,255,0.04);
  --muted: #9fb3bf;
  --accent-1: #6ee7d7;
  --accent-2: #7c5cff;
  --card-bg: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(0,0,0,0.06));
  --text: #e6f2f5;
  --radius: 14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  color:var(--text);
  background: radial-gradient(1200px 400px at 10% 10%, rgba(124,92,255,0.12), transparent 8%),
              radial-gradient(900px 300px at 90% 90%, rgba(108,231,206,0.06), transparent 10%),
              linear-gradient(180deg,var(--bg-1),var(--bg-2));
  background-attachment: fixed;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
}
.container{max-width:1100px;margin:0 auto;padding:1.25rem}
.site-header{
  position:sticky;top:0;z-index:40;
  background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.site-header .container{display:flex;align-items:center;justify-content:space-between;padding:0.75rem 1rem}
.brand{margin:0;font-weight:700;font-size:1.25rem;letter-spacing:0.2px}
.main-nav{display:flex;gap:0.75rem;align-items:center}
.avatar{width:56px;height:56px;border-radius:999px;overflow:hidden;display:inline-block;border:2px solid rgba(255,255,255,0.06)}
.avatar img{width:100%;height:100%;object-fit:cover;display:block}
.main-nav a{color:var(--muted);text-decoration:none;padding:0.45rem 0.6rem;border-radius:8px;position:relative;transition:all 180ms ease}
.main-nav a::after{content:'';position:absolute;left:10%;right:10%;bottom:6px;height:2px;background:linear-gradient(90deg,var(--accent-1),var(--accent-2));opacity:0;transform:translateY(3px);transition:all 200ms ease}
.main-nav a:hover{color:var(--text);transform:translateY(-2px)}
/* No mostrar subrayado al hacer hover: sólo el enlace activo tendrá el subrayado */
.main-nav a:hover::after{opacity:0;transform:translateY(3px)}

/* Enlace activo: subrayado y en negrita */
.main-nav a.active{font-weight:700;color:var(--text)}
.main-nav a.active::after{opacity:1;transform:translateY(0);height:3px}

.hero{display:grid;grid-template-columns:1fr 420px;gap:2rem;align-items:center;padding:3.5rem 0}
.hero .intro{max-width:56ch}
.hero h2{font-size:2.2rem;margin-bottom:0.5rem}
.hero p{color:var(--muted);margin-bottom:1rem}
.hero .cta{display:flex;gap:0.75rem}
.btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.7rem 1.05rem;border-radius:12px;font-weight:600;text-decoration:none;border:none;cursor:pointer}
.btn-primary{background:linear-gradient(90deg,var(--accent-1),var(--accent-2));color:#022227;box-shadow:0 6px 20px rgba(124,92,255,0.12)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--text)}

.hero-card{background:var(--card-bg);border-radius:var(--radius);padding:1.25rem;border:1px solid rgba(255,255,255,0.04);display:flex;flex-direction:column;gap:0.5rem;box-shadow:0 10px 30px rgba(2,12,23,0.5)}
.hero-card{grid-column:1 / -1;width:100%}
.hero-card h3{margin:0}
.muted{color:var(--muted)}

.section{padding:2.25rem 0}
.section h3{margin-bottom:1rem}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}

/* Projects index: force one item per row */
.grid.projects-list{grid-template-columns:1fr}
.grid.projects-list .card{display:flex;align-items:center;gap:1rem}
.grid.projects-list .card h3{margin:0}

/* Thumbnail inside project cards */
.card-thumb{width:160px;height:100px;object-fit:cover;border-radius:8px;flex-shrink:0}
@media(max-width:720px){
  .card-thumb{width:120px;height:80px}
  .grid.projects-list .card{flex-direction:column;align-items:flex-start}
}
.card{background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:1.25rem;border-radius:12px;border:1px solid rgba(255,255,255,0.03);transition:transform 220ms cubic-bezier(.2,.9,.2,1),box-shadow 220ms}
.card:hover{transform:translateY(-8px) scale(1.01);box-shadow:0 20px 40px rgba(2,12,23,0.6)}
.card h4{margin:0 0 0.5rem}
.card p{color:var(--muted);font-size:0.98rem}

.about-preview{display:flex;flex-direction:column;gap:0.75rem}

/* List indentation: desplazar listas del margen izquierdo */
ul, ol {
  padding-left: 1.75rem; /* una tabulación aproximada */
  margin-left: 0;
}
/* Nivel anidado: una tabulación adicional */
ul ul, ol ol, ul ol, ol ul {
  padding-left: 1.25rem;
}
/* Separación entre items */
li { margin-bottom: 0.45rem; }


.site-footer{padding:2rem 0;border-top:1px solid rgba(255,255,255,0.03);margin-top:3rem;text-align:center;color:var(--muted)}

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

/* Párrafos justificados */
p { 
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
  -moz-hyphens: auto;
  -webkit-hyphens: auto;
}
/* En pantallas pequeñas, mantener texto alineado a la izquierda para mejor legibilidad */
@media (max-width:520px) {
  p { text-align: left; }
}

@media(max-width:980px){.hero{grid-template-columns:1fr;}.hero .hero-card{order:2}.site-header .container{flex-direction:row;gap:0.5rem}}
@media(max-width:600px){.main-nav{display:flex;gap:0.4rem}.container{padding:0.75rem}}

/* About layout: stacked card on top for full-width pages */
.about-card-top aside.card { max-width:760px; margin:0 auto; }

/* Nav toggle (hamburger) */
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;background:var(--card-bg);border:1px solid rgba(255,255,255,0.04);cursor:pointer}
.nav-toggle:focus{outline:2px solid var(--accent-1)}
.nav-toggle svg{width:20px;height:20px}

@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .site-header .container{position:relative}
  /* hide nav by default on small screens; show when .open */
  .main-nav{display:none;position:absolute;right:1rem;top:64px;background:var(--card-bg);padding:0.75rem;border-radius:10px;flex-direction:column;gap:0.5rem;width:calc(100% - 2rem);box-shadow:0 10px 30px rgba(2,12,23,0.6);border:1px solid rgba(255,255,255,0.03)}
  .main-nav a{display:block;padding:0.65rem 0.85rem}
  .main-nav.open{display:flex}
  /* Make the mobile dropdown clearly visible over page content */
  .main-nav{background-color: rgba(2,12,23,0.95);backdrop-filter: none}
  .main-nav a{color:var(--text)}
  .main-nav a + a{border-top:1px solid rgba(255,255,255,0.03)}
}

/* Center content inside the About aside card */
.about-card{ text-align:center }
.about-card ul{ display:inline-block; text-align:left; padding-left:1.25rem; margin:0 auto }
.about-card p, .about-card h4, .about-card h3 { margin-left:0; margin-right:0 }

/* Small animated entrance */
@keyframes floatIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.card, .hero-card, .btn{animation:floatIn 450ms ease both}

/* Theme helper for links */
a.link-underline{color:var(--accent-1);text-decoration:none;border-bottom:2px solid transparent;transition:all 180ms}
a.link-underline:hover{border-bottom-color:var(--accent-2)}

/* Make an entire card act as a clickable link */
.card-link{display:block;color:inherit;text-decoration:none}
.card-link:focus-visible{outline:3px solid rgba(124,92,255,0.24);outline-offset:4px;border-radius:12px}
.card-link .card{height:100%}
.card-link .card:hover{transform:translateY(-8px) scale(1.01);box-shadow:0 22px 46px rgba(2,12,23,0.65)}

/* Visual affordance: badge to indicate the whole card is clickable */
.card-link{position:relative;cursor:pointer}
.card-link::after{content:'Abrir';position:absolute;top:12px;right:12px;background:linear-gradient(90deg,var(--accent-1),var(--accent-2));color:#022227;padding:6px 8px;border-radius:8px;font-weight:700;font-size:0.8rem;opacity:0;transform:translateY(-6px);transition:all 180ms ease;pointer-events:none}
.card-link:hover::after,.card-link:focus::after{opacity:1;transform:none}

.image-slider{margin:0 -1.25rem 0}
.image-slider .container{padding:0}
/* Image slider styles */
.slider{position:relative;display:flex;align-items:center;gap:0}
.slides{overflow:hidden;width:100%;border-radius:12px}
.track{display:flex;transform:translateX(0);transition:transform 520ms cubic-bezier(.22,.9,.3,1)}
/* Increase slider height by ~25% and make buttons clearly visible */
.track img{width:100%;height:275px;object-fit:contain;object-position:center center;display:block;flex-shrink:0;transition:transform 520ms ease;background:rgba(0,0,0,0.06)}
.slider-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,0.75);color:var(--text);border:none;width:52px;height:52px;border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:60;box-shadow:0 8px 28px rgba(0,0,0,0.55)}
.slider-btn.prev{left:12px}
.slider-btn.next{right:12px}
.slider-btn:hover{background:rgba(0,0,0,0.85)}

@media(max-width:800px){
  .track img{height:200px}
}

/* Contact sidebar (logos) - fixed on desktop, inline bottom on small screens */
.contact-side{position:fixed;right:1rem;top:120px;display:flex;flex-direction:column;gap:0.5rem;z-index:60}
.contact-side a{display:inline-flex;width:46px;height:46px;align-items:center;justify-content:center;background:var(--card-bg);border-radius:10px;border:1px solid rgba(255,255,255,0.04);transition:transform 160ms ease}
.contact-side a:hover{transform:translateY(-6px)}
.contact-side img, .contact-side svg{width:22px;height:22px;display:block}

@media (max-width:900px){
  .contact-side{position:static;flex-direction:row;justify-content:center;gap:0.75rem;margin-top:1rem}
  .contact-side a{width:40px;height:40px}
}

/* Alternative placement: inline bottom row for contact icons */
.contact-bottom{display:flex;justify-content:center;gap:0.75rem;margin-top:1rem}
.contact-bottom a{display:inline-flex;width:48px;height:48px;align-items:center;justify-content:center;background:var(--card-bg);border-radius:10px;border:1px solid rgba(255,255,255,0.04)}
.contact-bottom img, .contact-bottom svg{width:22px;height:22px}