/* ============================================================
   Portfolio — Luis Rivas Villa
   ============================================================ */

:root{
  --bg:        #0b0f16;
  --bg-soft:   #0f141d;
  --panel:     #141a24;
  --panel-2:   #1b2230;
  --line:      #232b38;
  --line-soft: #1a212c;

  --tx:        #e8eef6;
  --tx-mid:    #a8b3c2;
  --tx-dim:    #6f7d8f;

  --accent:    #5aa9ff;
  --accent-tx: #0a1220;
  --green:     #3fd07a;

  --radius:  14px;
  --radius-s: 8px;
  --maxw:   1000px;
  --ease: cubic-bezier(.4,0,.2,1);
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth}

body{
  background:var(--bg);
  color:var(--tx);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* halo de fondo, muy sutil */
body::before{
  content:"";
  position:fixed; inset:0; z-index:-1; pointer-events:none;
  background:
    radial-gradient(680px 380px at 15% -8%,  rgba(90,169,255,.10), transparent 70%),
    radial-gradient(560px 340px at 88% 4%,   rgba(63,208,122,.06), transparent 70%);
}

a{color:inherit}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ── Hero ──────────────────────────────────────────────── */

.hero{
  padding:92px 0 64px;
  display:grid;
  grid-template-columns:auto 1fr;
  gap:38px;
  align-items:center;
}

.avatar{
  width:148px; height:148px;
  border-radius:50%;
  object-fit:cover;
  border:2px solid var(--line);
  box-shadow:0 0 0 6px rgba(90,169,255,.07), 0 18px 40px rgba(0,0,0,.45);
  background:var(--panel);
}

/* fallback con iniciales si aún no hay foto */
.avatar-fallback{
  width:148px; height:148px;
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:3rem; font-weight:700; letter-spacing:-.03em;
  color:var(--accent);
  background:linear-gradient(145deg,var(--panel),var(--panel-2));
  border:2px solid var(--line);
  box-shadow:0 0 0 6px rgba(90,169,255,.07), 0 18px 40px rgba(0,0,0,.45);
}

.hero h1{
  font-size:clamp(2rem,5vw,2.9rem);
  font-weight:750;
  letter-spacing:-.03em;
  line-height:1.15;
  margin-bottom:8px;
}

.hero .role{
  color:var(--accent);
  font-size:1.05rem;
  font-weight:550;
  margin-bottom:16px;
}

.hero .bio{
  color:var(--tx-mid);
  font-size:1.03rem;
  max-width:620px;
}

.stack{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}

.chip{
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--tx-mid);
  font-size:.79rem;
  font-weight:500;
  padding:5px 12px;
  border-radius:20px;
  transition:border-color .18s var(--ease), color .18s var(--ease);
}
.chip:hover{border-color:var(--accent);color:var(--tx)}

/* ── Secciones ─────────────────────────────────────────── */

.section-title{
  font-size:.78rem;
  text-transform:uppercase;
  letter-spacing:.13em;
  color:var(--tx-dim);
  font-weight:650;
  margin:64px 0 24px;
  display:flex; align-items:center; gap:14px;
}
.section-title::after{
  content:""; flex:1; height:1px; background:var(--line-soft);
}

/* ── Tarjetas de proyecto ──────────────────────────────── */

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(370px,1fr));
  gap:22px;
}

.card{
  background:linear-gradient(160deg,var(--panel) 0%,var(--bg-soft) 100%);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  display:flex;
  flex-direction:column;
  transition:border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}
.card:hover{
  border-color:rgba(90,169,255,.45);
  transform:translateY(-3px);
  box-shadow:0 14px 34px rgba(0,0,0,.34);
}

.card-head{display:flex;align-items:center;gap:15px;margin-bottom:16px}

.card-logo{
  width:54px; height:54px;
  border-radius:12px;
  object-fit:cover;
  background:#fff;
  border:1px solid var(--line);
  flex-shrink:0;
}

.card-head h3{
  font-size:1.28rem;
  font-weight:680;
  letter-spacing:-.015em;
  line-height:1.25;
}

.badge{
  display:inline-block;
  font-size:.68rem;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:.06em;
  color:var(--green);
  background:rgba(63,208,122,.1);
  border:1px solid rgba(63,208,122,.24);
  padding:2px 8px;
  border-radius:4px;
  margin-top:3px;
}

.desc{color:var(--tx-mid);font-size:.95rem;margin-bottom:18px}

.features{list-style:none;margin-bottom:20px}
.features li{
  position:relative;
  padding-left:20px;
  color:var(--tx-mid);
  font-size:.89rem;
  margin-bottom:5px;
}
.features li::before{
  content:"";
  position:absolute; left:4px; top:.72em;
  width:5px; height:5px; border-radius:50%;
  background:var(--accent);
}

.tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:22px}
.tag{
  font-size:.71rem;
  font-weight:550;
  color:var(--accent);
  background:rgba(90,169,255,.09);
  border:1px solid rgba(90,169,255,.22);
  padding:3px 9px;
  border-radius:5px;
}

.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto}

.btn{
  display:inline-flex; align-items:center; gap:7px;
  text-decoration:none;
  font-size:.86rem; font-weight:560;
  padding:9px 16px;
  border-radius:var(--radius-s);
  border:1px solid var(--line);
  color:var(--tx);
  background:var(--panel-2);
  transition:background .16s var(--ease), border-color .16s var(--ease), transform .16s var(--ease);
}
.btn:hover{background:#252e3d;border-color:#394454;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-tx)}
.btn.primary:hover{background:#78bbff;border-color:#78bbff}
.btn svg{width:15px;height:15px;fill:currentColor;flex-shrink:0}

/* ── Infraestructura ───────────────────────────────────── */

.infra{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(215px,1fr));
  gap:16px;
}
.infra-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-s);
  padding:18px 20px;
}
.infra-item h4{
  font-size:.85rem; font-weight:640; margin-bottom:5px;
  color:var(--tx);
}
.infra-item p{font-size:.83rem;color:var(--tx-dim);line-height:1.55}

/* ── Footer ────────────────────────────────────────────── */

footer{
  margin:76px 0 52px;
  padding-top:28px;
  border-top:1px solid var(--line-soft);
  display:flex; justify-content:space-between;
  flex-wrap:wrap; gap:14px;
  color:var(--tx-dim); font-size:.86rem;
}
footer a{
  color:var(--tx-mid);
  text-decoration:none;
  border-bottom:1px solid var(--line);
  transition:color .16s var(--ease), border-color .16s var(--ease);
}
footer a:hover{color:var(--accent);border-color:var(--accent)}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}

/* ── Responsive ────────────────────────────────────────── */

@media(max-width:760px){
  .hero{
    grid-template-columns:1fr;
    text-align:center;
    padding:56px 0 44px;
    gap:24px;
    justify-items:center;
  }
  .hero .bio{margin:0 auto}
  .stack{justify-content:center}
  .avatar,.avatar-fallback{width:118px;height:118px;font-size:2.4rem}
  .grid{grid-template-columns:1fr}
  .card{padding:22px}
  footer{flex-direction:column;text-align:center;align-items:center}
}

@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}