/* Paleta y tipografía */
:root {
  --bg: #0b0f16;
  --surface: #111827;
  --card: #0f172a;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --primary-1: #7c3aed;  /* violeta */
  --primary-2: #06b6d4;  /* cian   */
  --nav-h: 72px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 85% -10%, rgba(6,182,212,.15), transparent 60%),
              radial-gradient(900px 500px at 10% 10%, rgba(124,58,237,.18), transparent 60%),
              var(--bg);
  color-scheme: dark;
}

img { max-width: 100%; height: auto; }

/* Skip link */
.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 1000;
  background: #111827; color: #fff; padding: 8px 12px; border-radius: 8px;
}
.skip-link:focus { left: 16px; top: 12px; outline: 2px solid #fff; }

/* Focus visible accesible */
:focus-visible {
  outline: 2px solid #06b6d4;
  outline-offset: 2px;
  border-radius: 6px;
}

/* Navbar */
.navbar { transition: background .3s ease, box-shadow .3s ease, backdrop-filter .3s ease; }
.navbar .nav-link { color: #cbd5e1; }
.navbar .nav-link.active, .navbar .nav-link:hover { color: #fff; }
.navbar.nav-scrolled {
  backdrop-filter: blur(10px);
  background: rgba(2,6,23,.6);
  box-shadow: 0 6px 24px rgba(0,0,0,.25);
}

/* Hero */
.hero-section {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  text-align: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}
.bg-video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  z-index: -3;
  filter: saturate(1.05) brightness(.8);
}
.overlay-gradient {
  position: absolute; inset: 0; z-index: -2;
  background: linear-gradient(135deg, rgba(2,6,23,.7), rgba(2,6,23,.35));
}
.hero-decor {
  position: absolute; inset: -20% -10% auto -10%;
  height: 120%;
  background: radial-gradient(600px 300px at 20% 20%, rgba(124,58,237,.35), transparent 60%),
              radial-gradient(600px 300px at 80% 30%, rgba(6,182,212,.35), transparent 60%);
  z-index: -1;
  pointer-events: none;
}
.text-shadow { text-shadow: 0 10px 30px rgba(0,0,0,.4); }

/* Secciones */
.section-pad { padding: 88px 0; }
section[id] { scroll-margin-top: calc(var(--nav-h) + 16px); }

/* Botones */
.btn-primary {
  background: linear-gradient(90deg, var(--primary-1), var(--primary-2));
  border: 0;
  box-shadow: 0 10px 24px rgba(6,182,212,.18);
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.05); }
.btn-outline-light { border-color: rgba(255,255,255,.35); }

/* Cards generales */
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.08);
  color: var(--text);
  border-radius: 16px;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(124,58,237,.4);
  box-shadow: 0 16px 36px rgba(6,182,212,.15);
}

/* Skill cards */
.skill-card .icon-wrap {
  width: 64px; height: 64px; margin: 0 auto 10px;
  display: grid; place-items: center; font-size: 30px;
  color: white;
  background: linear-gradient(135deg, var(--primary-1), var(--primary-2));
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(6,182,212,.25);
}
.skill-card h5 { font-family: 'Poppins', sans-serif; margin-top: 8px; }
.skill-card p { color: #cbd5e1; }

/* About */
.about-card { border-radius: 24px; overflow: hidden; background: #0b0f16; }

/* Experiencia */
.brand { filter: grayscale(100%) contrast(90%); opacity: .7; transition: filter .2s ease, opacity .2s ease, transform .2s ease; }
.brand:hover { filter: none; opacity: 1; transform: translateY(-2px); }

/* Contacto */
#contact .form-control, #contact textarea {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
  color: var(--text);
}
#contact .form-control::placeholder, #contact textarea::placeholder { color: #94a3b8; }

/* Footer */
footer a:hover { color: #fff !important; }

/* Botón volver arriba */
.to-top {
  position: fixed; right: 20px; bottom: 24px; z-index: 999;
  width: 48px; height: 48px; display: grid; place-items: center;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all .25s ease;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* Reduce motion: respeta accesibilidad */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto; }
  .bg-video { display: none; }
}

/* Contenedor sin título visible */
.tools-row { margin-top: .5rem; padding-top: 2rem;}

/* Chips de herramientas (glass + acento mejorado) */
.tool-chips { display:flex; flex-wrap:wrap; gap:.4rem; }
.tool {
  --accent: var(--primary-2);
  position: relative;
  display:inline-flex; align-items:center; gap:.45rem;
  padding:.4rem .7rem;
  border-radius:999px;
  color:#e5e7eb;
  background:
    radial-gradient(120% 120% at 10% -20%, rgba(255,255,255,.16), transparent 40%),
    linear-gradient(180deg, rgba(255,255,255,.10), rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 18px rgba(0,0,0,.25);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
  font-size: 0.875rem;   /* ↓ texto más pequeño */
}
.tool .tool-logo{
  width:18px; height:18px; flex:0 0 18px; display:block; object-fit:contain;
  filter: drop-shadow(0 0 6px rgba(0,0,0,.25));
  border-radius:4px;
}
.tool:is(:hover,:focus-visible){
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--accent) 60%, white);
  box-shadow: 0 16px 32px rgba(0,0,0,.35), 0 0 0 2px color-mix(in oklab, var(--accent) 25%, transparent);
}

/* Separador para forzar nueva fila en los chips */
.tool-break{
  flex-basis: 100%;
  width: 0; height: 0;
  padding: 0; margin: 0 !important;
  pointer-events: none;
  opacity: 0;
}

@media (max-width: 420px){
  .tool { padding:.44rem .72rem; font-size:.84rem; }  /* ↓ aún más compacto en móvil */
}

/* Carrusel de experiencia (imágenes simuladas) */
.exp-marquee{
  position: relative;
  overflow: hidden;
  /* desvanecido en bordes para efecto “pista” */
  -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
  padding: .25rem 0;
}
.exp-track{
  display: flex;
  gap: 18px;
  width: max-content;
  animation: marquee-rtl 32s linear infinite;
  will-change: transform;
}
.exp-marquee:hover .exp-track{ animation-play-state: paused; }

@keyframes marquee-rtl{
  from { transform: translateX(0%); }
  to   { transform: translateX(-50%); }
}

/* “Imagen” con textura y acento; no es tarjeta */
.exp-image{
  --accent: #06b6d4;
  position: relative;
  display: grid;
  grid-template-columns: 48px auto;
  align-items: center;
  gap: 12px;
  min-width: clamp(270px, 34vw, 420px);
  height: clamp(86px, 11vw, 120px);
  padding: 14px 18px;
  border-radius: 20px;
  isolation: isolate;
  color: #eef2ff;
  user-select: none;
  /* fondo foto-simulada */
  background:
    radial-gradient(120% 140% at 10% 0%, color-mix(in oklab, var(--accent) 35%, #0b0f16) 10%, transparent 50%),
    radial-gradient(120% 140% at 90% 120%, color-mix(in oklab, var(--accent) 25%, #0b0f16) 10%, transparent 50%),
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border: 1px solid rgba(255,255,255,.18);
  box-shadow: inset 0 0 0 9999px rgba(12,18,28,.08), 0 8px 24px rgba(0,0,0,.35);
}
.exp-image::after{ /* grano sutil para look de imagen */
  content:"";
  position:absolute; inset:0; z-index:-1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='table' tableValues='0 0 .015 0'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity:.5;
  mix-blend-mode: soft-light;
  pointer-events:none;
}
.exp-image i{
  display:grid; place-items:center;
  width:48px; height:48px;
  border-radius:12px;
  background: linear-gradient(135deg, var(--accent), color-mix(in oklab, var(--accent) 25%, #111827));
  box-shadow: 0 8px 18px color-mix(in oklab, var(--accent) 45%, transparent);
  font-size: 22px;
}
.exp-image figcaption strong{
  display:block; font-family: 'Poppins', sans-serif; font-weight:700; letter-spacing:.2px;
  text-shadow: 0 6px 18px rgba(0,0,0,.45);
}
.exp-image figcaption small{
  color:#cbd5e1; font-weight:500;
}

/* Interacción */
.exp-image:hover{
  transform: translateY(-2px);
  box-shadow: inset 0 0 0 9999px rgba(12,18,28,.06), 0 14px 30px rgba(0,0,0,.45);
  border-color: color-mix(in oklab, var(--accent) 40%, #ffffff);
}

/* Carrusel: fondo neutro, iconos con color */
#experience .exp-image{
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03)) !important;
  border: 1px solid rgba(255,255,255,.12) !important;
  box-shadow: inset 0 0 0 9999px rgba(12,18,28,.06), 0 8px 24px rgba(0,0,0,.35) !important;
}
#experience .exp-image:hover{
  border-color: rgba(255,255,255,.22) !important;
  box-shadow: inset 0 0 0 9999px rgba(12,18,28,.05), 0 14px 30px rgba(0,0,0,.45) !important;
}

/* Iconos: conservar el acento de color */
#experience .exp-image i{
  background: linear-gradient(135deg, var(--accent), color-mix(in oklab, var(--accent) 25%, #111827)) !important;
  box-shadow: 0 8px 18px color-mix(in oklab, var(--accent) 45%, transparent) !important;
  color: #fff;
}

/* Accesibilidad: respetar reduce motion */
@media (prefers-reduced-motion: reduce){
  .exp-track{ animation: none; }
}
/* “Sobre mí”: forzar blanco puro en párrafo y lista */
#about .text-white-50,
#about .list-unstyled.text-white-50,
#about .list-unstyled.text-white-50 li{
  color: #ffffff !important;
}

/* Sobre mí: texto más grande (párrafo y lista) */
#about .about-text p.text-white-50 {
  font-size: clamp(.98rem, .85vw + .55rem, 1.06rem);  /* antes: 1.05–1.2rem */
  line-height: 1.55;
}

#about .about-text .list-unstyled.text-white-50.small {
  font-size: clamp(.94rem, .7vw + .5rem, 1rem) !important; /* antes: 1–1.1rem */
  line-height: 1.5;
}

#about .about-text .list-unstyled.text-white-50.small li {
  margin-bottom: .45rem; /* antes: .55rem */
}
#about .about-note{
  font-size:.95rem;
  margin-top: 1.1rem;       /* más espacio debajo de la foto */
  text-align: left;
  white-space: nowrap;      /* una sola línea */
  overflow-x: auto;         /* permite ver todo el texto si no entra */
  overflow-y: hidden;
  text-overflow: clip;      /* sin “…” */
  -webkit-overflow-scrolling: touch;
}

#about .one-line{ white-space: nowrap !important; }

/* Enlaces dentro de cada experiencia */
#experience .exp-image figcaption a{
  color: inherit;
  text-decoration: none;
}
#experience .exp-image figcaption a:hover,
#experience .exp-image figcaption a:focus-visible{
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 2px;
}