/* Critical CSS for above-the-fold content - Mundial 2026 */
/* This should be inlined in the HTML head for optimal performance */

/* Critical base styles */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:62.5%;scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;font-size:1.6rem;line-height:1.6;color:#1a1a1a;background-color:#fff;overflow-x:hidden}

/* Critical CSS variables */
:root{
    --primary-blue:#003366;
    --primary-red:#ff4444;
    --primary-green:#00cc66;
    --primary-yellow:#ffcc00;
    --secondary-purple:#6633cc;
    --neutral-white:#fff;
    --text-primary:#1a1a1a;
    --text-secondary:#6c757d;
    --gradient-hero:linear-gradient(135deg,#003366 0%,#6633cc 50%,#ff4444 100%);
    --shadow-sm:0 2px 4px rgba(0,0,0,0.1);
    --border-radius:8px;
    --transition:all 0.3s cubic-bezier(0.4,0,0.2,1)
}

/* Critical typography */
h1{font-size:clamp(3.2rem,5vw,6.4rem);font-weight:700;line-height:1.2;color:var(--text-primary)}
h2{font-size:clamp(2.4rem,4vw,4.8rem);font-weight:600;line-height:1.2;color:var(--text-primary)}

/* Critical layout */
.container{max-width:1200px;margin:0 auto;padding:0 2rem}

/* Critical header styles */
.header{position:fixed;top:0;left:0;right:0;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);z-index:1000;box-shadow:var(--shadow-sm)}
.nav-container{max-width:1200px;margin:0 auto;padding:0 2rem;display:flex;justify-content:space-between;align-items:center;height:7rem}
.logo-text{font-size:2.4rem;font-weight:700;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-decoration:none}
.nav-menu{display:flex;list-style:none;gap:3rem}
.nav-menu a{text-decoration:none;color:var(--text-primary);font-weight:500;transition:var(--transition)}

/* Critical hero styles */
.main{margin-top:7rem}
.hero{min-height:90vh;display:flex;align-items:center;background:var(--gradient-hero);position:relative;overflow:hidden}
.hero-container{max-width:1200px;margin:0 auto;padding:0 2rem;display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center;position:relative;z-index:2}
.hero-content{color:var(--neutral-white)}
.hero-title{color:var(--neutral-white);margin-bottom:2rem;text-shadow:2px 2px 4px rgba(0,0,0,0.3)}
.hero-subtitle{font-size:2rem;color:rgba(255,255,255,0.9);margin-bottom:3rem;line-height:1.5}

/* Critical button styles */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:1.4rem 2.8rem;font-size:1.6rem;font-weight:600;text-decoration:none;border-radius:var(--border-radius);transition:var(--transition);cursor:pointer;border:none;min-width:16rem}
.btn-primary{background:var(--neutral-white);color:var(--primary-blue);box-shadow:0 4px 12px rgba(0,0,0,0.15)}
.btn-secondary{background:transparent;color:var(--neutral-white);border:2px solid var(--neutral-white)}
.hero-cta{display:flex;gap:2rem;flex-wrap:wrap}

/* Critical responsive */
@media (max-width:768px){
    html{font-size:56.25%}
    .nav-menu{display:none}
    .hero-container{grid-template-columns:1fr;text-align:center;gap:2rem}
    .hero-cta{justify-content:center}
}

@media (max-width:480px){
    .container{padding:0 1.5rem}
    .nav-container{padding:0 1.5rem}
    .hero-cta{flex-direction:column;align-items:center}
}

/* Loading optimization */
.loading{opacity:0;transform:translateY(20px);transition:var(--transition)}
.loaded{opacity:1;transform:translateY(0)}