:root{--navy: #26215C;--navy-deep: #1A1640;--violet: #5A4FCF;--violet-soft: #8B82E5;--cyan: #1B7A8C;--cyan-soft: #4FA5B5;--ink: #2B2B2B;--muted: #5A5A5A;--line: #E5E3F0;--pale: #F0EFF9;--pale-cyan: #EAF6F4;--pale-navy: #EDECF5;--bg: #FBFBFD;--green: #2E8B57;--amber: #C77D32;--red: #B23A48}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-family:Georgia,serif;color:var(--navy)}a{color:var(--violet);text-decoration:none}a:hover{text-decoration:underline}button{font-family:Arial,sans-serif;cursor:pointer}.app-container{min-height:100vh;background:linear-gradient(135deg,var(--bg) 0%,var(--pale-navy) 100%);padding:20px}.app-header{max-width:720px;margin:0 auto 24px;display:flex;align-items:center;gap:12px}.app-content{max-width:720px;margin:0 auto}.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;background:linear-gradient(135deg,var(--navy),var(--violet));border-radius:10px;color:#fff;font-family:Georgia,serif;font-weight:700;font-size:22px}.app-title{font-size:22px;font-weight:700}.app-tagline{font-size:13px;color:var(--muted);font-style:italic}.card{background:#fff;border-radius:16px;padding:32px 28px;box-shadow:0 4px 24px #26215c14}.step-title{font-size:24px;margin-bottom:8px;font-weight:700}.step-intro{color:var(--muted);margin-bottom:24px;font-size:14px}.progress{display:flex;gap:6px;margin-bottom:24px}.progress-step{flex:1;height:4px;background:var(--line);border-radius:2px;transition:background .3s}.progress-step.completed{background:var(--violet)}.progress-step.current{background:var(--navy)}.step-counter{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:16px;font-weight:700}.field{margin-bottom:20px}.label{display:block;font-weight:700;margin-bottom:8px;color:var(--navy);font-size:14px}.input,.select,.textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:8px;font-size:15px;font-family:Arial,sans-serif;color:var(--ink);background:#fff;transition:border-color .2s}.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--violet)}.hint{display:block;font-size:12px;color:var(--muted);margin-top:4px;font-style:italic}.choices{display:flex;flex-wrap:wrap;gap:8px}.choice{flex:1;min-width:110px;padding:12px 16px;border:1.5px solid var(--line);background:#fff;border-radius:8px;font-size:14px;color:var(--ink);transition:all .15s}.choice:hover{border-color:var(--violet-soft)}.choice.active{background:var(--violet);color:#fff;border-color:var(--violet)}.aportante-card{background:var(--pale);border-radius:10px;padding:16px;margin-bottom:12px;border:1px solid var(--line)}.aportante-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.aportante-title{font-weight:700;color:var(--navy);font-size:15px}.aportante-delete{background:none;border:none;color:var(--red);font-size:12px;text-decoration:underline}.add-button{width:100%;padding:14px;background:#fff;border:2px dashed var(--violet-soft);color:var(--violet);border-radius:10px;font-size:14px;font-weight:700;margin-top:8px}.add-button:hover{background:var(--pale)}.add-button:disabled{opacity:.4;cursor:not-allowed}.calc-display{background:var(--pale-cyan);border-left:3px solid var(--cyan);padding:14px 16px;border-radius:8px;margin-top:16px;font-size:14px}.calc-display-title{font-weight:700;color:var(--cyan);font-size:12px;text-transform:uppercase;letter-spacing:1px;margin-bottom:6px}.calc-display-content{color:var(--ink);line-height:1.6}.nav{display:flex;gap:12px;margin-top:28px}.btn{flex:1;padding:14px 20px;border-radius:8px;border:none;font-size:15px;font-weight:700;font-family:Arial,sans-serif;cursor:pointer;transition:all .15s}.btn-primary{background:var(--navy);color:#fff}.btn-primary:hover:not(:disabled){background:var(--navy-deep)}.btn-primary:disabled{opacity:.4;cursor:not-allowed}.btn-secondary{background:#fff;color:var(--navy);border:1.5px solid var(--line)}.btn-secondary:hover{border-color:var(--navy)}.btn-cyan{background:var(--cyan);color:#fff}.btn-cyan:hover{background:var(--cyan-soft)}.plan-section{margin-top:24px}.plan-route{background:#fff;border:1.5px solid var(--line);border-radius:12px;padding:20px;margin-bottom:14px;transition:border-color .2s}.plan-route:hover{border-color:var(--violet-soft)}.plan-route-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.plan-route-title{font-weight:700;color:var(--navy);font-size:16px}.plan-route-tag{font-size:10px;padding:3px 8px;border-radius:12px;background:var(--pale);color:var(--violet);font-weight:700;text-transform:uppercase;letter-spacing:.5px}.plan-route-desc{color:var(--muted);font-size:13px;line-height:1.6}.loading{text-align:center;padding:40px;color:var(--muted);font-size:14px}.error-box{background:#ffe5e5;color:var(--red);padding:12px 16px;border-radius:8px;font-size:13px;margin:12px 0}.success-box{background:#e0f5ea;color:var(--green);padding:16px;border-radius:8px;margin:12px 0;font-size:14px}.info-box{background:var(--pale);border-left:3px solid var(--violet);padding:14px 16px;border-radius:8px;margin:12px 0;font-size:13px;color:var(--ink);line-height:1.6}@media (max-width: 600px){.card{padding:24px 20px}.step-title{font-size:20px}.choices{flex-direction:column}.choice{width:100%}.nav{flex-direction:column-reverse}}