@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";
@import "https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.6.0/css/all.min.css";
:root{--primary:#111827;--primary-hover:#374151;--secondary:#4b5563;--accent:#2563eb;--bg-main:#f9fafb;--card-bg:#fff;--card-border:#e5e7eb;--text-main:#111827;--text-muted:#6b7280;--error:#ef4444;--shadow-soft:0 1px 2px 0 #0000000d;--shadow-hover:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--transition:all .2s ease-in-out}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg-main);color:var(--text-main);flex-direction:column;min-height:100vh;font-family:Inter,sans-serif;line-height:1.6;display:flex}input,select,textarea{font-size:16px!important}.container{max-width:1080px;margin:0 auto;padding:0 24px}.text-center{text-align:center}a{color:var(--accent);transition:var(--transition);text-decoration:none}a:hover{color:#1d4ed8;text-decoration:underline}header{border-bottom:1px solid var(--card-border);z-index:1000;background:#fff;position:sticky;top:0}.header-container{justify-content:space-between;align-items:center;height:72px;display:flex}.logo{color:var(--text-main);letter-spacing:-.5px;text-transform:uppercase;align-items:center;gap:12px;font-size:1.4rem;font-weight:800;display:flex}.logo:hover{color:var(--text-main);text-decoration:none}.logo-icon{background:var(--text-main);color:#fff;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;padding:6px;display:flex}.nav-desktop{gap:32px;display:flex}.nav-link{color:var(--text-muted);padding-bottom:4px;font-size:.95rem;font-weight:500;position:relative}.nav-link:hover{color:var(--text-main);text-decoration:none}.nav-link.active{color:var(--text-main);font-weight:600}.mobile-menu-btn{cursor:pointer;color:var(--text-main);background:0 0;border:none;min-width:44px;min-height:44px;padding:8px;font-size:1.5rem;display:none}.hero{text-align:center;padding:60px 0 40px}.hero h1{color:var(--text-main);letter-spacing:-1px;margin-bottom:16px;font-size:3rem;font-weight:800;line-height:1.1}.hero p{color:var(--text-muted);max-width:650px;margin:0 auto;font-size:1.15rem}.content-section{border-radius:var(--radius-md);border:1px solid var(--card-border);background:#fff;max-width:900px;margin:0 auto 60px;padding:40px}.content-section h2{color:var(--text-main);letter-spacing:-.5px;border-left:4px solid var(--accent);border-radius:2px;margin:32px 0 16px;padding-left:14px;font-size:1.5rem;font-weight:700}.content-section h2:first-child{margin-top:0}.content-section h3{margin:24px 0 12px;font-size:1.2rem;font-weight:600}.content-section p{color:var(--text-muted);margin-bottom:16px;font-size:1rem}.content-section ul{margin-bottom:16px;margin-left:24px}.content-section li{color:var(--text-muted);margin-bottom:8px;font-size:1rem}.distribution-table{border-collapse:collapse;text-align:left;background:var(--card-bg);width:100%;margin:20px 0}.distribution-table th,.distribution-table td{border-bottom:1px solid var(--card-border);padding:16px 20px}.distribution-table th{color:var(--text-main);text-transform:uppercase;letter-spacing:.5px;background:#f3f4f6;font-size:.95rem;font-weight:600}.distribution-table tr:last-child td{border-bottom:none}.distribution-table tbody tr:hover{background:#f9fafb}.distribution-table td{color:var(--text-muted);font-size:.95rem}.distribution-table td.strong{color:var(--text-main);font-weight:600}.calculator-layout{grid-template-columns:1fr 380px;align-items:start;gap:32px;max-width:1080px;margin:0 auto;display:grid}.left-column{flex-direction:column;display:flex}.section-label{text-transform:uppercase;letter-spacing:1.5px;color:var(--accent);align-items:center;gap:16px;margin-top:24px;margin-bottom:16px;font-size:.8rem;font-weight:700;display:flex}.section-label:after{content:"";background:var(--card-border);flex:1;height:1px}.slider-group{border:1px solid var(--card-border);border-radius:var(--radius-lg);background:#fff;margin-bottom:16px;padding:24px;box-shadow:0 2px 4px #00000005}.slider-header{color:var(--text-main);margin-bottom:20px;font-size:1.05rem;font-weight:600}.slider-control{align-items:center;gap:16px;display:flex}.btn-circle{color:#6b7280;cursor:pointer;-webkit-user-select:none;user-select:none;touch-action:manipulation;background:#fff;border:1px solid #d1d5db;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:1.2rem;transition:all .2s;display:flex}.btn-circle:hover{border-color:var(--accent);color:var(--accent);background:#eff6ff}.range-slider{appearance:none;cursor:pointer;touch-action:pan-x;background:#e5e7eb;border-radius:4px;outline:none;flex:1;height:8px}.range-slider::-webkit-slider-thumb{-webkit-appearance:none;border:3px solid var(--accent);cursor:pointer;background:#fff;border-radius:50%;width:28px;height:28px;box-shadow:0 2px 4px #0000001a}.range-slider::-moz-range-thumb{border:3px solid var(--accent);cursor:pointer;background:#fff;border-radius:50%;width:28px;height:28px}.slider-value{color:var(--text-main);text-align:right;min-width:70px;font-size:1.25rem;font-weight:800}.slider-value span{color:#9ca3af;font-size:.95rem;font-weight:600}.curve-buttons{flex-wrap:wrap;gap:12px;margin-top:8px;margin-bottom:32px;display:flex}.curve-btn{border:1px solid var(--card-border);color:var(--text-muted);cursor:pointer;touch-action:manipulation;background:#fff;border-radius:100px;min-height:44px;padding:10px 20px;font-family:inherit;font-size:.9rem;font-weight:600;transition:all .2s}.curve-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}.curve-btn:hover:not(.active){border-color:var(--accent);color:var(--accent)}.results-panel{border-radius:var(--radius-lg);text-align:center;background:#f8fafc;border:1px solid #cbd5e1;padding:32px 24px;position:sticky;top:90px}.results-header{color:var(--text-main);letter-spacing:1px;margin-bottom:24px;font-size:1.1rem;font-weight:800}.result-row{color:var(--text-muted);border-bottom:1px solid #e2e8f0;justify-content:space-between;align-items:center;padding:12px 0;font-size:.95rem;font-weight:600;display:flex}.result-row .val{color:var(--text-main);box-shadow:var(--shadow-soft);background:#fff;border-radius:6px;padding:4px 16px;font-size:1.1rem;font-weight:800}.predicted-label{color:var(--text-main);margin:32px 0 16px;font-size:1rem;font-weight:700}.ap-score-large{color:#fff;border-radius:50%;justify-content:center;align-items:center;width:90px;height:90px;margin:0 auto 16px;font-size:3.5rem;font-weight:900;transition:background .3s,box-shadow .3s;display:flex}.percentile-text{color:var(--text-muted);margin-bottom:24px;font-size:.85rem;line-height:1.6}.percentile-text strong{color:var(--text-main)}.btn-practice{background:var(--accent);color:#fff;cursor:pointer;touch-action:manipulation;text-align:center;border:none;border-radius:100px;width:100%;margin-bottom:12px;padding:14px;font-family:inherit;font-size:1.05rem;font-weight:700;transition:all .2s;display:block}.btn-practice:hover{color:#fff;background:#1d4ed8;text-decoration:none;transform:translateY(-2px)}.btn-reset{width:100%;color:var(--text-muted);cursor:pointer;touch-action:manipulation;background:0 0;border:1px solid #e2e8f0;border-radius:100px;justify-content:center;align-items:center;gap:8px;padding:12px;font-family:inherit;font-weight:600;transition:all .2s;display:flex}.btn-reset:hover{color:var(--text-main);background:#fff;border-color:#cbd5e1}.sharing{border-top:1px solid var(--card-border);background:#fff;padding:60px 0}.sharing-title{color:var(--text-main);text-align:center;margin-bottom:24px;font-size:1.25rem;font-weight:700}.social-share{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.social-share-btn{transition:var(--transition);border:1px solid var(--card-border);color:var(--text-muted);cursor:pointer;background:#fff;border-radius:100px;align-items:center;gap:8px;padding:12px 24px;font-family:inherit;font-size:.95rem;font-weight:600;display:inline-flex}.social-share-btn:hover{box-shadow:var(--shadow-soft);text-decoration:none;transform:translateY(-2px)}.social-share-btn.facebook:hover{color:#fff;background:#1877f2;border-color:#1877f2}.social-share-btn.whatsapp:hover{color:#fff;background:#25d366;border-color:#25d366}.social-share-btn.x-btn:hover{color:#fff;background:#000;border-color:#000}.social-share-btn.copy-link:hover{background:var(--text-main);color:#fff;border-color:var(--text-main)}footer{border-top:1px solid var(--card-border);color:var(--text-muted);text-align:center;background:#fff;margin-top:auto;padding:32px 0;font-size:.9rem;font-weight:500}.footer-links{flex-wrap:wrap;justify-content:center;gap:24px;display:flex}.footer-links a{color:var(--text-muted);transition:var(--transition);font-size:.85rem;font-weight:500}.footer-links a:hover{color:var(--text-main);text-decoration:none}.copyright{opacity:.8;margin-top:16px}.legal-content h2{color:var(--text-main);margin-top:32px;margin-bottom:16px;font-size:1.5rem}.legal-content h3{color:var(--text-main);margin-top:24px;margin-bottom:12px;font-size:1.25rem}.legal-content p{color:var(--text-muted);margin-bottom:16px;line-height:1.7}.legal-content ul{color:var(--text-muted);margin-bottom:16px;margin-left:24px;line-height:1.7}.legal-content li{margin-bottom:8px}.legal-content a{color:var(--accent);text-decoration:underline}@media (max-width:800px){.calculator-layout{grid-template-columns:1fr;gap:24px}.results-panel{position:static}.hero h1{font-size:2.2rem}}@media (max-width:768px){.container{padding:0 16px}.nav-desktop{border-bottom:1px solid var(--card-border);z-index:999;background:#fff;flex-direction:column;align-items:center;gap:8px;width:100%;padding:20px 0;display:none;position:absolute;top:72px;left:0;box-shadow:0 4px 12px #00000014}.nav-desktop.mobile-active{display:flex}.nav-desktop .nav-link{text-align:center;width:100%;padding:12px 24px;font-size:1rem}.mobile-menu-btn{display:block}.hero{padding:40px 0 28px}.hero h1{letter-spacing:-.5px;font-size:2rem}.hero p{font-size:1rem}.content-section{margin-bottom:40px;padding:24px 16px}.content-section h2{font-size:1.3rem}.slider-group{padding:16px}.slider-control{gap:10px}.slider-value{min-width:60px;font-size:1.1rem}.distribution-table th,.distribution-table td{padding:10px 12px;font-size:.85rem}.footer-links{gap:12px}.footer-links a{font-size:.8rem}.social-share{gap:10px}.social-share-btn{padding:10px 20px;font-size:.9rem}}@media (max-width:480px){.hero h1{word-break:break-word;font-size:1.75rem}.hero p{font-size:.95rem}.logo{gap:8px;font-size:1.1rem}.logo-icon{width:28px;height:28px}.content-section h2{padding-left:10px;font-size:1.2rem}.slider-value{min-width:55px;font-size:1rem}.curve-buttons{gap:8px}.curve-btn{text-align:center;flex:1;padding:10px 12px;font-size:.85rem}.ap-score-large{width:80px;height:80px;font-size:3rem}.result-row{font-size:.85rem}.result-row .val{padding:4px 10px;font-size:1rem}.distribution-table th,.distribution-table td{padding:8px;font-size:.78rem}}