:root{--brand-navy: #1A3C5E;--brand-navy-dark: #122B45;--brand-navy-light: #2A547D;--brand-gold: #E8A020;--brand-surface: #F5F7FA;--brand-border: #E2E8F0;--brand-muted: #64748B;--brand-danger: #963B31;--brand-danger-bg: #FFF0EE}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif;color:#334155;background:var(--brand-surface)}button,input,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.6;cursor:wait}a,button,input,select{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid var(--brand-gold);outline-offset:3px}a{color:var(--brand-navy-light);text-decoration:none}a:hover{text-decoration:underline}input,select{background:#fff;border:1px solid #c9d6df;border-radius:4px;color:#344454;padding:10px 12px;min-height:39px;font-size:13px;max-width:100%}input::placeholder{color:#6c7d89}.button{border:1px solid var(--brand-navy);border-radius:5px;background:var(--brand-navy);color:#fff;padding:10px 20px;font-size:13px}.button:hover{background:var(--brand-navy-light)}.panel{background:#fff;border:1px solid var(--brand-border);border-radius:7px;overflow:hidden}.text-button{border:0;background:none;color:var(--brand-navy-light);padding:12px 0;font-size:13px}.muted{font-size:12px;color:var(--brand-muted);line-height:1.6}.empty-state{padding:32px 24px;text-align:center;color:var(--brand-muted);font-size:14px}.error-box{background:var(--brand-danger-bg);color:var(--brand-danger);padding:14px 20px;border-radius:5px;margin:16px;font-size:13px}.notice{background:#f0f7fb;padding:18px;font-size:13px;color:#3c6175;line-height:1.7;border-radius:5px;margin:24px 0}.papa-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:var(--brand-surface)}.papa-card{width:100%;max-width:420px;padding:28px 24px;display:flex;flex-direction:column;gap:16px}.papa-title{font-size:24px;margin:0;color:var(--brand-navy)}.papa-field{display:flex;flex-direction:column;gap:8px;font-size:15px}.papa-field input,.papa-field-row input{font-size:17px;padding:14px;border:1px solid #cdd8df;border-radius:8px}.papa-button{font-size:17px;padding:16px;border-radius:8px;width:100%}.papa-button-secundario{background:#fff;color:var(--brand-navy)}.papa-checkbox{display:flex;align-items:center;gap:10px;font-size:15px}.papa-layout{min-height:100vh;display:flex;flex-direction:column;background:var(--brand-surface)}.papa-header{background:#fff;border-bottom:1px solid var(--brand-border);padding:18px 20px;display:flex;justify-content:space-between;align-items:center}.papa-header-title{font-size:18px;font-weight:600;color:var(--brand-navy)}.papa-header-user{font-size:13px;color:var(--brand-muted)}.papa-content{flex:1;padding:20px 20px 96px;max-width:560px;margin:0 auto;width:100%;box-sizing:border-box}.papa-section h2{font-size:20px;margin:0 0 16px;color:var(--brand-navy)}.papa-field-row{display:flex;gap:10px;margin-bottom:16px}.papa-field-row input{flex:1}.papa-linea{align-items:center}.papa-linea input{min-width:0}.papa-total{font-size:17px;margin:16px 0}.papa-lista{list-style:none;margin:0 0 20px;padding:0;display:flex;flex-direction:column;gap:10px}.papa-item{background:#fff;border:1px solid var(--brand-border);border-radius:8px;padding:14px 16px;display:flex;flex-direction:column;gap:4px;font-size:15px}.papa-item-vencida{border-color:#e2a29a;background:#fff7f6}.papa-tabbar{position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--brand-border);display:flex;padding:6px;gap:4px}.papa-tab{flex:1;text-align:center;padding:12px 4px;font-size:13px;border-radius:8px;color:#526574;text-decoration:none;border:0;background:none}.papa-tab-activo{background:#ecf7fb;color:var(--brand-navy);font-weight:600}.papa-tab-salir{color:var(--brand-danger)}