:root{--galon-ink: #1c2530;--galon-paper: #eae6dc;--galon-paper-light: #f5f2ea;--galon-border: #c9c2b0;--galon-brass: #b08d4f;--galon-steel: #3e5c76;--galon-red: #9e3b3b;--galon-green: #3b6b45;--galon-text: #20262d;--galon-text-secondary: #6b6558;--galon-text-on-ink: #eae6dc;--galon-text-on-ink-secondary: #a9a398;--galon-text-on-red: #fcebeb;--galon-text-on-green: #eaf3ea;--font-display: "Fraunces", serif;--font-body: "IBM Plex Sans", sans-serif;--font-mono: "IBM Plex Mono", monospace;--radius-card: 4px;--radius-control: 6px}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:var(--font-body);background:var(--galon-paper);color:var(--galon-text);display:flex;align-items:center;justify-content:center;padding:1.5rem}body:has(.modo-header){display:block;padding:0}.modo-header{height:120px;display:flex;align-items:center;padding:0 28px;background:var(--galon-ink)}.modo-logo{display:flex;align-items:center;gap:16px}.modo-logo svg{color:var(--galon-brass)}.modo-logo span{font-family:var(--font-display);font-weight:600;font-size:42px;letter-spacing:4px;text-transform:uppercase;color:var(--galon-text-on-ink)}.page-main{display:flex;align-items:flex-start;justify-content:center;padding:1.5rem}.card{width:100%;max-width:380px;background:var(--galon-paper-light);border:.5px solid var(--galon-border);border-radius:var(--radius-card);padding:2rem}.card h1{margin:0 0 .25rem;font-family:var(--font-display);font-weight:600;font-size:1.4rem;letter-spacing:.5px;text-transform:uppercase;color:var(--galon-text)}.card .subtitle{margin:0 0 1.5rem;font-family:var(--font-body);font-weight:400;color:var(--galon-text-secondary);font-size:.9rem}form{display:flex;flex-direction:column;gap:1rem}label{font-family:var(--font-body);font-size:.85rem;color:var(--galon-text-secondary);display:flex;flex-direction:column;gap:.35rem}input{padding:.65rem .75rem;border-radius:var(--radius-control);border:.5px solid var(--galon-border);background:var(--galon-paper);color:var(--galon-text);font-family:var(--font-body);font-size:1rem}input:focus{outline:2px solid var(--galon-brass);outline-offset:1px}button{padding:.7rem 1rem;border:.5px solid var(--galon-border);border-radius:var(--radius-control);background:var(--galon-paper-light);color:var(--galon-text);font-family:var(--font-body);font-weight:500;font-size:1rem;cursor:pointer;transition:border-color .15s ease}button:hover{border-color:var(--galon-brass)}button:disabled{opacity:.6;cursor:not-allowed}#submit-btn,#empezar-btn,.siguiente-btn{background:var(--galon-ink);border-color:var(--galon-ink);color:var(--galon-text-on-ink)}#submit-btn:hover,#empezar-btn:hover,.siguiente-btn:hover{border-color:var(--galon-brass)}.message{margin-top:1rem;font-family:var(--font-body);font-size:.85rem;min-height:1.2em}.message.error{color:var(--galon-red)}.message.success{color:var(--galon-steel)}.footer-link{margin-top:1.5rem;font-family:var(--font-body);font-size:.85rem;color:var(--galon-text-secondary);text-align:center}.footer-link a{color:var(--galon-steel);text-decoration:none}.footer-link a:hover{text-decoration:underline}.app-shell{max-width:640px}.app-shell .top-bar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem;margin-bottom:1.5rem}.cambiar-modo-link{position:absolute;top:136px;left:1rem;z-index:50;display:inline-block;font-family:var(--font-body);font-weight:400;font-size:.8rem;color:var(--galon-steel);text-decoration:none;background:var(--galon-paper-light);border:.5px solid var(--galon-border);border-radius:var(--radius-control);padding:.5rem .9rem}.cambiar-modo-link:hover{text-decoration:underline}.loading-msg,.empty-msg{font-family:var(--font-body);color:var(--galon-text-secondary);font-size:.9rem}.temas-checkbox-list{list-style:none;margin:.75rem 0 0;padding:0;display:flex;flex-direction:column;gap:.5rem}.temas-checkbox-list label{display:flex;align-items:center;gap:.6rem;padding:.6rem .85rem;border-radius:var(--radius-card);background:var(--galon-paper);border:.5px solid var(--galon-border);font-family:var(--font-body);font-size:.9rem;color:var(--galon-text);cursor:pointer}.temas-checkbox-list label:has(input:checked){background:var(--galon-ink);color:var(--galon-text-on-ink)}.sesion-marcador{margin:0;font-family:var(--font-mono);font-weight:500;color:var(--galon-text)}.pregunta-header{display:flex;align-items:flex-start;justify-content:space-between;gap:.75rem;margin:1.5rem 0 2rem;padding:1.5rem;border:.5px solid var(--galon-border);border-radius:var(--radius-card);background:var(--galon-paper-light)}.enunciado{margin:0 0 .6rem;font-family:var(--font-body);font-weight:500;color:var(--galon-text)}.pregunta-header .enunciado{margin:0}.marcar-btn{flex-shrink:0;width:auto;padding:.3rem;background:transparent;border:none;color:var(--galon-text-secondary);line-height:0}.marcar-btn:hover{background:transparent;border-color:transparent;color:var(--galon-brass)}.marcar-btn svg{fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round}.marcar-btn.marcada{color:var(--galon-brass)}.marcar-btn.marcada svg{fill:currentColor}.opciones-sesion{display:flex;flex-direction:column;gap:.5rem}.opcion-btn{text-align:left;padding:.6rem .85rem;border-radius:var(--radius-control);border:.5px solid var(--galon-border);background:var(--galon-paper-light);color:var(--galon-text);font-family:var(--font-body);font-weight:400;font-size:.9rem;cursor:pointer}.opcion-btn:hover:not(:disabled){border-color:var(--galon-brass)}.opcion-btn:disabled{cursor:default;opacity:.85}.opcion-btn.correcta{background:var(--galon-green);border-color:var(--galon-green);color:var(--galon-text-on-green)}.opcion-btn.incorrecta{background:var(--galon-red);border-color:var(--galon-red);color:var(--galon-text-on-red)}.siguiente-btn{margin-top:1rem}.explicacion{margin-top:1rem;padding:.75rem;border-radius:var(--radius-card);background:var(--galon-paper-light);border:.5px solid var(--galon-border);color:var(--galon-text-secondary);font-family:var(--font-body);font-size:.85rem}.pomodoro-slot-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:5px;background:var(--galon-paper-light);border:.5px solid var(--galon-border);border-radius:6px;padding:8px;white-space:nowrap;cursor:pointer}.pomodoro-slot-btn:hover{background:var(--galon-paper-light);border-color:var(--galon-brass)}.pomodoro-slot-icon{display:inline-flex;flex-shrink:0;color:var(--galon-text)}.pomodoro-slot-label{font-family:var(--font-body);font-weight:400;font-size:12px;color:var(--galon-text)}.floating-widgets{position:absolute;top:136px;right:1rem;z-index:50;width:104px;display:flex;flex-direction:column;gap:10px}@media (max-width: 640px){.floating-widgets{position:static;width:calc(100% - 3rem);max-width:380px;margin:1rem auto 0}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:#1c25308c;z-index:100}.modal-card{position:relative;width:100%;max-width:320px;background:var(--galon-paper-light);border:.5px solid var(--galon-border);border-radius:var(--radius-card);padding:1.5rem}.modal-close-btn{position:absolute;top:.75rem;right:.75rem;width:auto;padding:.3rem .6rem;font-size:.75rem;background:transparent;border:.5px solid var(--galon-border);color:var(--galon-text-secondary)}.modal-close-btn:hover{border-color:var(--galon-brass);color:var(--galon-text)}.pomodoro-fase{margin:0 0 .25rem;font-family:var(--font-mono);font-weight:500;text-align:center;text-transform:uppercase;letter-spacing:1px;color:var(--galon-brass)}.pomodoro-fase-descanso{color:var(--galon-steel)}.pomodoro-tiempo{margin:0 0 1.25rem;font-family:var(--font-mono);font-weight:500;font-size:2.5rem;text-align:center;font-variant-numeric:tabular-nums;color:var(--galon-text)}.pomodoro-config{display:flex;gap:.75rem;margin-bottom:1.25rem}.pomodoro-config label{flex:1;font-size:.8rem;color:var(--galon-text-secondary);display:flex;flex-direction:column;gap:.3rem}.pomodoro-mostrar-label{flex-direction:row;align-items:center;gap:.5rem;margin-bottom:1.25rem;font-size:.8rem;color:var(--galon-text-secondary);cursor:pointer}.pomodoro-mostrar-label input{width:auto}.pomodoro-toast{position:fixed;bottom:1.5rem;left:50%;transform:translate(-50%);z-index:200;padding:.6rem 1rem;border-radius:var(--radius-card);background:var(--galon-paper-light);border:.5px solid var(--galon-border);color:var(--galon-text);font-family:var(--font-body);font-size:.85rem}@media (max-width: 480px){body{padding:1rem}.modo-header{padding:0 16px}.modo-logo svg{width:34px;height:34px}.modo-logo span{font-size:30px;letter-spacing:2px}.card{padding:1.25rem}.pregunta-header{padding:1rem;margin:1rem 0 1.5rem}.explicacion{padding:.6rem}.cambiar-modo-link{font-size:.75rem;padding:.4rem .7rem}}