:root{--primary: #ff5722;--primary-dark: #e64a19;--dark: #222;--light: #f8f9fa;--gray: #666;--white: #fff}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:Inter,sans-serif;line-height:1.6;color:var(--dark);background:var(--white);overflow-x:hidden}h1,h2,h3,h4,h5,h6{margin-bottom:1rem;font-weight:600;line-height:1.2}h1{font-size:2.2rem}h2{font-size:1.8rem}h3{font-size:1.4rem}p{margin-bottom:1rem;color:var(--gray)}a{color:var(--primary);text-decoration:none;transition:color .3s}a:hover{color:var(--primary-dark)}section{padding:4rem 1rem}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.section-header{text-align:center;margin-bottom:3rem}.section-intro{font-size:1.1rem;max-width:600px;margin:0 auto}.btn{display:inline-block;background:var(--primary);color:#fff;padding:.8rem 1.5rem;border-radius:5px;border:none;cursor:pointer;font-size:1rem;font-weight:500;transition:all .3s;text-align:center;text-decoration:none}.btn:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 4px 12px #ff572233}.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none!important;box-shadow:none!important}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;color:#334155}.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 16px;border:2px solid #e2e8f0;border-radius:8px;font-family:inherit;font-size:1rem;transition:all .3s;background:#f8fafc}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px #ff57221a}.card{background:var(--white);border-radius:10px;padding:1.5rem;box-shadow:0 5px 15px #0000000d;transition:all .3s ease}.card:hover{transform:translateY(-5px);box-shadow:0 10px 25px #0000001a}.loading{text-align:center;padding:3rem;color:var(--gray);font-size:1.1rem}.loading-spinner{display:inline-block;width:40px;height:40px;border:3px solid #f3f3f3;border-top:3px solid var(--primary);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-message{background:#fef2f2;color:#dc2626;border:1px solid #fecaca;padding:12px 16px;border-radius:8px;margin:1rem 0;display:flex;align-items:center;gap:10px}.success-message{background:#f0fdf4;color:#16a34a;border:1px solid #bbf7d0;padding:12px 16px;border-radius:8px;margin:1rem 0;display:flex;align-items:center;gap:10px}.grid{display:grid;gap:2rem}.grid-cols-1{grid-template-columns:1fr}.grid-cols-2{grid-template-columns:repeat(2,1fr)}.grid-cols-3{grid-template-columns:repeat(3,1fr)}.grid-cols-4{grid-template-columns:repeat(4,1fr)}.grid-auto-fit{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:.5rem}.gap-2{gap:1rem}.gap-3{gap:1.5rem}.gap-4{gap:2rem}.fade-in-up{opacity:0;transform:translateY(20px);transition:all .6s ease}.fade-in-up.show{opacity:1;transform:translateY(0)}@media(prefers-color-scheme:dark){body{background:#1a1a1a;color:#f0f0f0}.card{background:#2a2a2a}.form-group input,.form-group textarea,.form-group select{background:#333;border-color:#444;color:#f0f0f0}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{background:#333;border-color:var(--primary)}}@media(max-width:768px){section{padding:3rem 1rem}h1{font-size:1.8rem}h2{font-size:1.6rem}h3{font-size:1.3rem}.grid-cols-2,.grid-cols-3,.grid-cols-4{grid-template-columns:1fr}.container{padding:0 .75rem}}@media(max-width:480px){section{padding:2rem .75rem}.btn{width:100%;max-width:100%}}