:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --bg: #f3f4f6;
    --white: #ffffff;
    --text: #1f2937;
    --gray: #6b7280;
    --border: #e5e7eb;
    --success: #10b981;
    --danger: #ef4444;
    --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Roboto', sans-serif; }

body { background-color: var(--bg); color: var(--text); height: 100vh; display: flex; flex-direction: column; }

/* Top Bar */
.top-bar {
    background: var(--white); padding: 10px 20px;
    display: flex; justify-content: space-between; align-items: center;
    border-bottom: 1px solid var(--border); box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.brand { font-size: 1.2rem; font-weight: bold; color: var(--primary); display: flex; align-items: center; gap: 8px; }
.btn-settings { background: none; border: none; color: var(--gray); cursor: pointer; display: flex; gap: 5px; align-items: center; font-size: 0.9rem; }
.btn-settings:hover { color: var(--primary); }

main { flex: 1; display: flex; justify-content: center; padding: 20px; overflow-y: auto; }

.container { width: 100%; max-width: 800px; }
.hidden { display: none !important; }

/* Tarjetas */
.card { background: var(--white); border-radius: var(--radius); box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); overflow: hidden; }

/* --- WIZARD VIEW --- */
.wizard-card { min-height: 400px; display: flex; flex-direction: column; }
.wizard-header { padding: 30px; text-align: center; border-bottom: 1px solid var(--bg); }
.wizard-header h2 { color: var(--primary); margin-bottom: 5px; }
.wizard-body { padding: 30px; flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; }

/* Botones de Opción */
.option-btn {
    width: 100%; max-width: 500px; margin-bottom: 12px; padding: 15px 20px;
    background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
    text-align: left; font-size: 1rem; color: var(--text); cursor: pointer;
    display: flex; justify-content: space-between; align-items: center;
    transition: all 0.2s;
}
.option-btn:hover { border-color: var(--primary); background: #eef2ff; color: var(--primary); transform: translateX(5px); }
.option-btn i { color: var(--gray); }

/* Respuesta Final */
.final-solution {
    background: #ecfdf5; border: 1px solid #a7f3d0; padding: 20px; border-radius: var(--radius); width: 100%;
}
.final-solution h3 { color: #047857; display: flex; align-items: center; gap: 10px; margin-bottom: 15px; }
.final-solution div { line-height: 1.6; }
.final-solution ol, .final-solution ul { padding-left: 20px; }

.wizard-footer { padding: 20px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; }

/* --- EDITOR VIEW --- */
.login-card { max-width: 400px; margin: 50px auto; padding: 30px; text-align: center; }
.login-card input { width: 100%; padding: 10px; margin: 15px 0; border: 1px solid var(--border); border-radius: 6px; }

.editor-card { display: flex; flex-direction: column; height: 85vh; }
.editor-header { padding: 15px 20px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; background: #f9fafb; }
.editor-layout { display: flex; flex: 1; overflow: hidden; }

/* Lista lateral */
.steps-list-container { width: 250px; border-right: 1px solid var(--border); padding: 15px; overflow-y: auto; background: #f9fafb; display: flex; flex-direction: column; }
#steps-list { list-style: none; flex: 1; }
#steps-list li { padding: 8px; cursor: pointer; border-radius: 4px; margin-bottom: 2px; font-size: 0.9rem; }
#steps-list li:hover { background: #e5e7eb; }
#steps-list li.active { background: var(--primary); color: var(--white); }

/* Formulario */
.step-form-container { flex: 1; padding: 20px; overflow-y: auto; }
.form-group { margin-bottom: 15px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 500; font-size: 0.9rem; }
.form-group input[type="text"], textarea { width: 100%; padding: 8px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 0.95rem; }
.checkbox-group { display: flex; align-items: center; gap: 8px; }

/* Opciones Dinámicas en Editor */
.option-row { display: flex; gap: 10px; margin-bottom: 8px; align-items: center; }
.option-row input { flex: 1; }
.btn-remove-opt { background: none; border: none; color: var(--danger); cursor: pointer; }

/* Botones Generales */
.btn-primary { background: var(--primary); color: var(--white); padding: 10px 20px; border: none; border-radius: 6px; cursor: pointer; }
.btn-secondary { background: var(--white); border: 1px solid var(--border); padding: 8px 15px; border-radius: 6px; cursor: pointer; display: flex; align-items: center; gap: 5px; }
.btn-success { background: var(--success); color: white; padding: 10px; border: none; border-radius: 6px; cursor: pointer; }
.btn-danger { background: var(--danger); color: white; padding: 10px; border: none; border-radius: 6px; cursor: pointer; }
.btn-icon { background: none; border: none; cursor: pointer; font-size: 1.2rem; }
.small { font-size: 0.8rem; padding: 5px 10px; width: 100%; margin-top: 10px; }
.editor-footer { padding: 15px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; }
.error-text { color: var(--danger); font-size: 0.9rem; margin-top: 10px; }