:root{--page-bg:#f4f6f9;--surface:#ffffff;--surface-strong:#0a1128;--text-main:#1e293b;--text-muted:#64748b;--accent-blue:#0f4c81;--accent-red:#da291c;--accent-green:#006847;--accent:#1e40af;--border:#e2e8f0;--gradient-usa:linear-gradient(135deg,#0f4c81 0%,#1d4ed8 100%);--gradient-can:linear-gradient(135deg,#da291c 0%,#f87171 100%);--gradient-mex:linear-gradient(135deg,#006847 0%,#10b981 100%)}body{background-color:var(--page-bg);color:var(--text-main);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;overflow-x:hidden;line-height:1.6}.custom-card{background-color:var(--surface);border:1px solid var(--border);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 0.2s ease,box-shadow 0.2s ease}.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{background-color:rgba(10,17,40,0.95) !important;backdrop-filter:blur(8px);border-bottom:2px solid var(--accent-red)}.navbar-brand img{max-height:40px}.nav-link{color:#f8fafc !important;font-weight:500;transition:color 0.2s ease}.nav-link:hover{color:#f87171 !important}.hero-section{background:linear-gradient(135deg,#0a1128 0%,#1e293b 100%);color:#ffffff;padding:80px 0;position:relative;overflow:hidden}.hero-section::after{content:'';position:absolute;bottom:0;left:0;right:0;height:15px;background:linear-gradient(90deg,var(--accent-blue) 33.3%,var(--accent-red) 33.3%,var(--accent-red) 66.6%,var(--accent-green) 66.6%)}.hero-title{font-size:2.8rem;font-weight:800;line-height:1.2;margin-bottom:1.5rem;text-shadow:0 2px 4px rgba(0,0,0,0.3)}.hero-title span{background:linear-gradient(90deg,#f87171,#60a5fa,#34d399);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero-meta-item{background:rgba(255,255,255,0.1);border-left:4px solid var(--accent-red);padding:15px;border-radius:0 8px 8px 0}.section-title{position:relative;font-weight:700;color:var(--surface-strong);margin-bottom:2rem;padding-bottom:0.75rem}.section-title::after{content:'';position:absolute;left:0;bottom:0;width:60px;height:4px;background:var(--accent-blue);border-radius:2px}.section-title-center{text-align:center}.section-title-center::after{left:50%;transform:translateX(-50%)}.badge-usa{background:var(--gradient-usa);color:#fff}.badge-can{background:var(--gradient-can);color:#fff}.badge-mex{background:var(--gradient-mex);color:#fff}.score-row{border-bottom:1px solid var(--border);padding:12px 0}.score-row:last-child{border-bottom:none}.group-card{border-top:4px solid var(--accent)}.group-card-a{border-top-color:var(--accent-blue)}.group-card-b{border-top-color:var(--accent-red)}.group-card-c{border-top-color:var(--accent-green)}.table-responsive{background-color:#fff;border-radius:8px;border:1px solid var(--border)}.accordion-button:not(.collapsed){background-color:#eff6ff;color:var(--accent-blue)}footer{background-color:var(--surface-strong);color:#cbd5e1;padding:60px 0 20px 0}footer a{color:#94a3b8;text-decoration:none;transition:color 0.2s ease}footer a:hover{color:#ffffff}