:root{--bg:#0a0a0f;--surface:#141420;--surface-hover:#1c1c2e;--border:#2a2a3d;--border-focus:#6c5ce7;--text:#e8e8f0;--text-muted:#8888a0;--accent:#6c5ce7;--accent-hover:#7d6ff0;--accent-glow:rgba(108,92,231,.25);--success:#00b894;--error:#e74c3c;--radius:10px;--radius-lg:16px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}.container{max-width:680px;margin:0 auto;padding:2rem 1.25rem 4rem}.header{text-align:center;margin-bottom:2.5rem}.brand-logo{max-width:220px;height:auto;margin-bottom:1rem}.header h1{font-size:1.6rem;font-weight:700;margin-bottom:.35rem}.header p{color:var(--text-muted);font-size:.95rem}.progress-bar{display:flex;gap:4px;margin-bottom:2rem}.progress-segment{flex:1 1;height:4px;border-radius:2px;background:var(--border);transition:background .3s ease}.progress-segment.active{background:var(--accent)}.progress-segment.completed{background:var(--success)}.step-indicator{text-align:center;font-size:.8rem;color:var(--text-muted);margin-bottom:1.5rem}.section-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem 1.5rem;margin-bottom:1.5rem}.section-card h2{font-size:1.2rem;font-weight:600;margin-bottom:.3rem}.section-card .section-desc{color:var(--text-muted);font-size:.85rem;margin-bottom:1.5rem}.field-group{margin-bottom:1.25rem}.field-group label{display:block;font-size:.85rem;font-weight:500;margin-bottom:.4rem;color:var(--text)}.field-group label .required{color:var(--error);margin-left:2px}.field-group input,.field-group select,.field-group textarea{width:100%;padding:.7rem .9rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:.9rem;font-family:var(--font);transition:border-color .2s,box-shadow .2s;outline:none}.field-group input:focus,.field-group select:focus,.field-group textarea:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--accent-glow)}.field-group textarea{min-height:100px;resize:vertical}.field-group input::placeholder,.field-group textarea::placeholder{color:var(--text-muted);opacity:.6}.field-group select option{background:var(--surface);color:var(--text)}.field-error{color:var(--error)}.field-error,.field-hint{font-size:.78rem;margin-top:.3rem}.field-hint{color:var(--text-muted)}.checkbox-group,.radio-group{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.3rem}.checkbox-option,.radio-option{display:flex;align-items:center;gap:.5rem;padding:.5rem .9rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;font-size:.85rem;transition:border-color .2s,background .2s}.checkbox-option:hover,.radio-option:hover{border-color:var(--accent);background:var(--surface-hover)}.checkbox-option input,.radio-option input{width:auto;accent-color:var(--accent)}.nav-buttons{display:flex;gap:.75rem;margin-top:1.5rem}.btn{flex:1 1;padding:.75rem 1.5rem;border:none;border-radius:var(--radius);font-size:.9rem;font-weight:600;cursor:pointer;transition:background .2s,transform .1s;font-family:var(--font)}.btn:active{transform:scale(.98)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--surface-hover)}.success-screen{text-align:center;padding:3rem 1rem}.success-icon{width:72px;height:72px;border-radius:50%;background:rgba(0,184,148,.15);color:var(--success);display:inline-flex;align-items:center;justify-content:center;font-size:2rem;margin-bottom:1.5rem}.success-screen h2{font-size:1.5rem;margin-bottom:.5rem}.success-screen p{color:var(--text-muted);font-size:.95rem;max-width:440px;margin:0 auto 1rem;line-height:1.6}.spinner{display:inline-block;width:18px;height:18px;border:2px solid hsla(0,0%,100%,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;margin-right:.5rem;vertical-align:middle}@keyframes spin{to{transform:rotate(1turn)}}.error-banner{background:rgba(231,76,60,.12);border:1px solid rgba(231,76,60,.3);border-radius:var(--radius);padding:.75rem 1rem;color:var(--error);font-size:.85rem;margin-bottom:1rem}@media (max-width:600px){.container{padding:1.25rem 1rem 3rem}.section-card{padding:1.5rem 1rem}.header h1{font-size:1.3rem}.checkbox-group,.radio-group{flex-direction:column}}