:root{--primary: #6366f1;--primary-hover: #4f46e5;--bg: #0f172a;--surface: #1e293b;--surface-hover: #334155;--text: #f8fafc;--text-muted: #94a3b8;--accent: #ec4899;--spade: #3b82f6;--club: #10b981;--heart: #ef4444;--diamond: #f59e0b}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg);color:var(--text);line-height:1.5;min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:2rem}.card{background-color:var(--surface);border-radius:1rem;padding:2rem;box-shadow:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;border:1px solid rgba(255,255,255,.1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}h1,h2,h3{font-weight:700;margin-bottom:1rem}h1{font-size:2.5rem;background:linear-gradient(to right,var(--primary),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-align:center}button{background-color:var(--primary);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:.5rem;font-weight:600;cursor:pointer;transition:all .2s}button:hover{background-color:var(--primary-hover);transform:translateY(-2px)}button:disabled{opacity:.5;cursor:not-allowed;transform:none}input,select{width:100%;padding:.75rem;border-radius:.5rem;border:1px solid var(--surface-hover);background-color:#0003;color:#fff;margin-bottom:1rem;outline:none;transition:border-color .2s}input:focus,select:focus{border-color:var(--primary)}.grid{display:grid;gap:1.5rem}.grid-cols-2{grid-template-columns:repeat(2,1fr)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.gap-4{gap:1rem}.gap-2{gap:.5rem}.mt-4{margin-top:1rem}.mb-4{margin-bottom:1rem}.mt-8{margin-top:2rem}.stat-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:.5rem;background:#0003;padding:.5rem 1rem;border-radius:.5rem}.stat-btn{background:var(--surface-hover);padding:.25rem .75rem;border-radius:.25rem}.stat-btn:hover{background:var(--primary)}.error-text{color:var(--heart);font-size:.875rem;margin-top:.5rem}