:root{--bg-color:#0a0a0a;--card-bg:#111;--text-main:#fff;--text-muted:#ccc;--accent:#ff6a00;--accent-hover:#ff8c00;--danger:#ef4444;--success:#22c55e}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-main);font-family:Inter,sans-serif;line-height:1.6}h1,h2,h3,h4{color:var(--text-main);margin-bottom:.5rem}h1{color:var(--accent);font-size:3.5rem;font-weight:800}h2{font-size:2.5rem;font-weight:800}h3{font-size:1.8rem;font-weight:600}p{color:var(--text-muted);margin-bottom:1rem;font-size:1.1rem}button{background-color:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:.75rem 1.5rem;font-size:1rem;font-weight:600;transition:background-color .2s,transform .1s}button:hover{background-color:var(--accent-hover);transform:translateY(-2px)}button:active{transform:translateY(0)}button:disabled{cursor:not-allowed;background-color:#555;transform:none}input[type=text],input[type=number],input[type=password]{color:#fff;background-color:#222;border:1px solid #444;border-radius:8px;width:100%;padding:.75rem;font-family:Inter,sans-serif;font-size:1rem}input:focus{border-color:var(--accent);outline:none}label{color:var(--text-muted);margin-bottom:.5rem;font-weight:600;display:block}.container{max-width:1000px;margin:0 auto;padding:2rem}.card{background-color:var(--card-bg);border:2px solid #222;border-radius:12px;margin-bottom:2rem;padding:2rem}.flex{display:flex}.flex-col{flex-direction:column;display:flex}.justify-between{justify-content:space-between}.align-center{align-items:center}.gap-4{gap:1rem}.gap-2{gap:.5rem}.mt-4{margin-top:1rem}.mb-4{margin-bottom:1rem}.text-center{text-align:center}