:root{
  --bg:#f7fafc;
  --card:#ffffff;
  --ink:#0f172a;
  --muted:#475569;
  --brand:#0ea5e9;
  --accent:#22c55e;
  --ring: rgba(14,165,233,.35);
  --grad: linear-gradient(90deg,#ef4444,#f59e0b,#22c55e,#06b6d4,#8b5cf6);
  /* Altura navbar para compensar anclas */
  --nav-h: 72px;
}

/* Reset básico */
*{box-sizing:border-box}
html,body{
  margin:0;padding:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,sans-serif;
  background:var(--bg);color:var(--ink);
}

/* --- Desplazamiento suave y offset para anclas --- */
html{
  scroll-behavior:smooth;
  scroll-padding-top: var(--nav-h);
}
section[id]{ /* compatibilidad extra */
  scroll-margin-top: var(--nav-h);
}

a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:24px}

/* --- NAVBAR mejorado --- */
.navbar{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(120%) blur(8px);
  -webkit-backdrop-filter:saturate(120%) blur(8px);
  border-bottom:1px solid #e5e7eb;
  box-shadow:0 6px 20px rgba(2,8,23,.06);
  min-height: var(--nav-h);
}
.navbar-inner{
  display:flex;gap:16px;align-items:center;justify-content:space-between;
  padding:10px 24px;min-height:var(--nav-h);
}
.brand{display:flex;gap:12px;align-items:center}
.brand img{height:44px;transition:transform .25s ease}
.brand img:hover{transform:scale(1.04)}

.nav-links{
  display:flex;gap:8px;flex-wrap:wrap;align-items:center;
}

/* Pastillas más elegantes + subrayado animado y estados accesibles */
.nav-links a{
  position:relative;
  color:#0f172a;
  padding:10px 14px;
  border-radius:9999px;
  background:#f8fafc;
  border:1px solid #e2e8f0;
  font-weight:600;
  transition:background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
  outline: none;
}
.nav-links a:hover{
  background:#eef5ff;
  border-color:#dbeafe;
  color:#0b4a6f;
  text-decoration:none; /* preferimos efecto personalizado */
}
.nav-links a:focus-visible{
  box-shadow:0 0 0 3px var(--ring);
}

/* subrayado sutil */
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:7px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,transparent,var(--brand),transparent);
  transform:scaleX(0);transform-origin:center;transition:transform .25s ease;
}
.nav-links a:hover::after{transform:scaleX(1)}

/* estado activo (si le asignas .active desde JS) */
.nav-links a.active{
  color:#0b4a6f;
  background:#e6f4ff;
  border-color:#bfdbfe;
}
.nav-links a.active::after{transform:scaleX(1)}

/* --- HERO y resto --- */
.hero{padding:56px 24px;background:linear-gradient(135deg,#e0f2fe,#ecfccb);border-bottom:1px solid #e2e8f0}
.hero h1{font-size:44px;line-height:1.1;margin:0 0 12px}
.hero .title-gradient{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:18px;color:var(--muted);max-width:900px}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:24px}
.card{background:var(--card);border:1px solid #e5e7eb;border-radius:16px;padding:18px;box-shadow:0 1px 0 rgba(0,0,0,.03)}
.card h3{margin:4px 0 8px}
.card p{color:var(--muted)}
.section{padding:32px 24px}

.btn{appearance:none;border:0;border-radius:999px;padding:12px 16px;background:var(--brand);color:white;font-weight:600;cursor:pointer;transition:transform .15s ease, filter .15s ease}
.btn:hover{filter:brightness(1.05)}
.btn:active{transform:translateY(1px)}
.btn.secondary{background:#10b981}
.btn:focus{outline:3px solid var(--ring);outline-offset:2px}

.input, select, textarea{width:100%;padding:12px 14px;border-radius:12px;border:1px solid #d1d5db;background:white}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:800px){.row{grid-template-columns:1fr}}

.badge{display:inline-block;background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0;padding:6px 10px;border-radius:999px;font-size:12px;font-weight:700}

.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}
.thumb{border-radius:14px;overflow:hidden;border:1px solid #e5e7eb;aspect-ratio:16/9;background:#f1f5f9;display:flex;align-items:center;justify-content:center;font-weight:700;color:#94a3b8}

.footer{padding:28px;margin-top:24px;border-top:1px solid #e5e7eb;color:#64748b}
.small{font-size:13px;color:#64748b}
.kicker{letter-spacing:.12em;text-transform:uppercase;color:#0f766e;font-weight:800;font-size:12px}
blockquote{margin:0;padding:14px 16px;border-left:4px solid #0ea5e9;background:#f0f9ff;border-radius:8px}
.alert{padding:10px 12px;border-radius:10px;border:1px solid #fde68a;background:#fffbeb;color:#92400e;font-size:14px}
.ok{padding:8px 10px;border-radius:10px;border:1px solid #bbf7d0;background:#f0fdf4;color:#14532d;font-size:14px}