:root{--primary-usa:#002868;--primary-mexico:#006847;--primary-canada:#da291c;--accent-gold:#d4af37;--bg-main:#f4f6f9;--bg-card:#ffffff;--text-main:#1a202c;--text-muted:#64748b;--border-color:#e2e8f0;--gradient-hero:linear-gradient(135deg,#002868 0%,#006847 50%,#da291c 100%)}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;background-color:var(--bg-main);color:var(--text-main);overflow-x:hidden;line-height:1.6}.custom-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;box-shadow:0 4px 6px -1px rgba(0,0,0,0.05),0 2px 4px -1px rgba(0,0,0,0.03);transition:transform 0.25s ease,box-shadow 0.25s ease;overflow:hidden}.custom-card:hover{transform:translateY(-4px);box-shadow:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05)}.navbar-custom{background-color:rgba(255,255,255,0.96);backdrop-filter:blur(10px);border-bottom:2px solid var(--border-color);z-index:1050}.navbar-brand-img{max-height:40px;object-fit:contain}.nav-link-custom{color:var(--text-main);font-weight:600;padding:0.5rem 1rem;transition:color 0.2s ease}.nav-link-custom:hover{color:var(--primary-usa)}.hero-section{background:var(--gradient-hero);color:#ffffff;padding:5rem 0;position:relative;overflow:hidden}.hero-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.4);z-index:1}.hero-container{position:relative;z-index:2}.hero-badge{background:rgba(255,255,255,0.2);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.3);border-radius:30px;padding:0.5rem 1.25rem;font-size:0.9rem;font-weight:600;display:inline-block}.hero-title{font-size:2.75rem;font-weight:800;line-height:1.2;text-shadow:0 2px 4px rgba(0,0,0,0.5)}.hero-desc{font-size:1.15rem;color:rgba(255,255,255,0.9);max-width:720px}.hero-img{border-radius:12px;box-shadow:0 15px 30px rgba(0,0,0,0.3);object-fit:cover;width:100%;height:auto}.stat-grid-card{background:rgba(255,255,255,0.1);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,0.2);border-radius:10px;padding:1.25rem;text-align:center}.stat-number{font-size:2rem;font-weight:800;color:var(--accent-gold)}.stage-tabs .nav-link{border:none;color:var(--text-muted);font-weight:600;border-radius:6px;margin:0 0.25rem;transition:all 0.3s}.stage-tabs .nav-link.active{background-color:var(--primary-usa);color:#fff}.match-row{display:flex;align-items:center;justify-content:space-between;padding:1rem;border-bottom:1px solid var(--border-color)}.match-row:last-child{border-bottom:none}.team-flag-placeholder{width:24px;height:16px;background:#cbd5e1;display:inline-block;margin-right:8px;border-radius:2px}.match-status-live{background-color:#fee2e2;color:#ef4444;padding:0.25rem 0.5rem;font-size:0.75rem;font-weight:700;border-radius:4px;animation:pulse 1.5s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:0.5}100%{opacity:1}}.group-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.group-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:10px;overflow:hidden}.group-header{background:var(--primary-usa);color:#fff;padding:0.75rem 1rem;font-weight:700}.group-header-mex{background:var(--primary-mexico)}.group-header-can{background:var(--primary-canada)}.guide-icon{font-size:2.25rem;color:var(--primary-usa);margin-bottom:1rem}.section-title{position:relative;padding-left:1rem;margin-bottom:1.5rem;font-weight:700;color:var(--primary-usa)}.section-title::before{content:'';position:absolute;left:0;top:0.25rem;bottom:0.25rem;width:4px;background:var(--primary-canada);border-radius:2px}.accordion-button:not(.collapsed){background-color:#f1f5f9;color:var(--primary-usa);font-weight:600}.footer-custom{background-color:#0f172a;color:#94a3b8;padding:4rem 0 2rem}.footer-custom a{color:#cbd5e1;text-decoration:none}.footer-custom a:hover{color:#ffffff}.footer-brand{color:#ffffff;font-weight:700}@media (max-width:768px){.hero-title{font-size:2rem}.hero-section{padding:3rem 0}}