:root{--color-bg: #fafafa;--color-surface: #ffffff;--color-text: #1a1a1a;--color-text-secondary: #666666;--color-text-muted: #999999;--color-border: #e5e5e5;--color-border-hover: #d0d0d0;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-light: #eff6ff;--color-friction: #ef4444;--color-friction-bg: #fef2f2;--color-energy: #22c55e;--color-energy-bg: #f0fdf4;--color-selected: #2563eb;--color-selected-bg: #eff6ff;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--transition: .15s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:1.5;min-height:100vh}.app{max-width:480px;margin:0 auto;padding:24px 16px;min-height:100vh;display:flex;flex-direction:column}.app__header{margin-bottom:24px}.app__content{flex:1;display:flex;flex-direction:column}.progress-bar{height:4px;background-color:var(--color-border);border-radius:2px;overflow:hidden}.progress-bar__fill{height:100%;background-color:var(--color-primary);border-radius:2px;transition:width .3s ease}.screen{display:flex;flex-direction:column;gap:24px;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.screen__badge{display:inline-flex;align-self:flex-start;padding:4px 12px;border-radius:20px;font-size:.75rem;font-weight:600;letter-spacing:.5px;text-transform:uppercase}.screen__badge--friction{background-color:var(--color-friction-bg);color:var(--color-friction)}.screen__badge--energy{background-color:var(--color-energy-bg);color:var(--color-energy)}.screen__content{display:flex;flex-direction:column;gap:24px}.screen__title{font-size:1.5rem;font-weight:600;color:var(--color-text);line-height:1.3}.screen__subtitle{font-size:1rem;font-weight:400;color:var(--color-text-muted)}.radio-group{display:flex;flex-direction:column;gap:8px}.radio-option{display:flex;align-items:center;gap:12px;padding:16px;background-color:var(--color-surface);border:1.5px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);-webkit-user-select:none;user-select:none}.radio-option:hover{border-color:var(--color-border-hover);background-color:var(--color-surface)}.radio-option--selected,.radio-option--selected:hover{border-color:var(--color-selected);background-color:var(--color-selected-bg)}.radio-option input{position:absolute;opacity:0;pointer-events:none}.radio-option__indicator{width:20px;height:20px;border:2px solid var(--color-border);border-radius:50%;flex-shrink:0;transition:all var(--transition);position:relative}.radio-option--selected .radio-option__indicator{border-color:var(--color-selected)}.radio-option--selected .radio-option__indicator:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:10px;height:10px;background-color:var(--color-selected);border-radius:50%}.radio-option__label{font-size:.9375rem;color:var(--color-text);display:flex;align-items:center;gap:8px}.radio-option__icon{font-size:1rem}.button{display:inline-flex;align-items:center;justify-content:center;padding:16px 24px;font-size:1rem;font-weight:500;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition);width:100%;margin-top:auto}.button--primary{background-color:var(--color-primary);color:#fff}.button--primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.button--primary:disabled{background-color:var(--color-border);color:var(--color-text-muted);cursor:not-allowed}.button--secondary{background-color:var(--color-surface);color:var(--color-text);border:1.5px solid var(--color-border)}.button--secondary:hover:not(:disabled){border-color:var(--color-border-hover);background-color:var(--color-bg)}.button--loading{position:relative;color:transparent}.button--loading:after{content:"Guardando...";position:absolute;color:#fff}.textarea-wrapper{display:flex;flex-direction:column;gap:8px}.textarea{width:100%;padding:16px;font-family:inherit;font-size:.9375rem;line-height:1.5;color:var(--color-text);background-color:var(--color-surface);border:1.5px solid var(--color-border);border-radius:var(--radius-md);resize:vertical;min-height:120px;transition:border-color var(--transition)}.textarea:focus{outline:none;border-color:var(--color-primary)}.textarea::placeholder{color:var(--color-text-muted)}.textarea__counter{font-size:.75rem;color:var(--color-text-muted);text-align:right}.welcome{display:flex;flex-direction:column;gap:24px}.welcome__title{font-size:1.75rem;font-weight:600;color:var(--color-text);line-height:1.3}.context-block{padding:16px 20px;background-color:var(--color-surface);border-radius:var(--radius-md);border-left:3px solid var(--color-primary-light)}.context-block p{font-size:.9375rem;color:var(--color-text-secondary);line-height:1.6;margin:0}.context-block p+p{margin-top:8px}.context-block__title{font-size:1.125rem;font-weight:500;color:var(--color-text);margin-bottom:4px}.context-block--with-icon{display:flex;flex-direction:column;align-items:flex-start;gap:8px}.context-block__icon{font-size:1.5rem;line-height:1}.context-block--hint{background-color:transparent;border-left:none;padding:8px 0}.context-block--hint p{font-size:.875rem;color:var(--color-text-muted)}.context-block--privacy{background-color:var(--color-bg);border-left-color:var(--color-border)}.context-block--privacy p{font-size:.8125rem;color:var(--color-text-muted)}.thank-you{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:48px 24px;gap:20px}.thank-you__emoji{font-size:3rem;line-height:1}.thank-you__title{font-size:1.375rem;font-weight:600;color:var(--color-text);line-height:1.4}.thank-you__context{display:flex;flex-direction:column;gap:12px}.thank-you__context p{font-size:.9375rem;color:var(--color-text-secondary);line-height:1.5;margin:0}.thank-you__highlight{font-weight:500;color:var(--color-text)}.thank-you__icon{display:flex;align-items:center;justify-content:center;width:64px;height:64px;background-color:var(--color-energy-bg);color:var(--color-energy);border-radius:50%;font-size:2rem;font-weight:700}.thank-you__message{font-size:1rem;color:var(--color-text-secondary)}.already-checked{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:48px 24px;gap:16px;min-height:60vh}.already-checked__icon{font-size:3rem}.already-checked__title{font-size:1.25rem;font-weight:600;color:var(--color-text)}.already-checked__message{font-size:1rem;color:var(--color-text-secondary)}@media(max-width:480px){.app{padding:16px 12px}.screen__title{font-size:1.25rem}.radio-option{padding:14px}.radio-option__label{font-size:.875rem}}