/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: 	#002FA7;
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

/* Contenedor principal */
.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

header {
    position: relative;
    color: white;
    padding: 32px;
    text-align: center;
    border-radius: 15px 15px 0 0;
    overflow: hidden;

    /* Gradiente animado */
    background: linear-gradient(45deg, #327afe, #8642d3, #ff6ec7);
    background-size: 600% 600%;
    animation: gradientShift 20s ease infinite;
}

/* Pseudo-elemento para ruido */
header::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none; /* no interfiere con clicks */
    background: url('https://www.transparenttextures.com/patterns/noise.png'); /* textura de ruido */
    opacity: 1; /* intensidad del ruido */
    z-index: 1;
}

/* Mantener el contenido por encima del pseudo-elemento */
header * {
    position: relative;
    z-index: 2;
}

/* Animación del gradiente */
@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Texto del header */
header h1 {
    margin-bottom: 24px;
    font-size: 2em;
}

/* Información del astronauta */
.astronaut-info {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    background: rgba(255, 255, 255, 0.15);
    padding: 15px 25px;
    border-radius: 48px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.25);
    color: #fff;
    margin-top: 20px;
}

.astronaut-info div {
    text-align: center;
}

.astronaut-info p {
    margin: 5px 0;
    font-size: 1em;
}

/* --- MISSION SELECTOR --- */
.mission-selector {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin: 20px auto;
    font-family: 'Segoe UI', sans-serif;
}

.mission-selector label {
    font-weight: 600;
    color: #333;
    text-align: center;
    margin-bottom: 5px;
}

.mission-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.mission-btn {
    padding: 8px 16px;
    background: transparent; /* sin fondo */
    border-radius: 24px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

/* Colores por categoría */
.mission-btn[data-value="ignea"] { border: 2px solid #f97316; color: #f97316; }      
.mission-btn[data-value="metamorfica"] { border: 2px solid #10b981; color: #10b981; } 
.mission-btn[data-value="sedimentaria"] { border: 2px solid #3b82f6; color: #3b82f6; } 

/* Hover */
.mission-btn:hover {
     transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(95, 102, 131, 0.3);
    
}

/* Activo */
.mission-btn.active[data-value="ignea"] {
    background: #f97316; /* naranja */
    color: white;
}

.mission-btn.active[data-value="metamorfica"] {
    background: #10b981; /* verde */
    color: white;
}

.mission-btn.active[data-value="sedimentaria"] {
    background: #3b82f6; /* azul */
    color: white;
}



/* --- Form selector --- */
.form-selector {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 20px 30px;
    background: #f8f9fa;
}

.btn-form {
    padding: 12px 30px;
    border: 2px solid #667eea;
    background: white;
    color: #667eea;
    border-radius: 25px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
}

.btn-form:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.btn-form.active {
    background: #667eea;
    color: white;
}

/* --- Forms container --- */
.forms-container {
    padding: 30px;
}

.form-extended,
.form-reduced {
    animation: fadeIn 0.5s;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

h2 {
    color: #667eea;
    margin-bottom: 25px;
    font-size: 1.5em;
    text-align: center;
}

/* --- Form groups --- */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #495057;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #ced4da;
    border-radius: 8px;
    font-size: 1em;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: #6c757d;
    font-size: 0.85em;
}

/* --- Submit button --- */
.btn-submit {
    width: 100%;
    padding: 15px;
    background: 	#002FA7;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1em;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

/* --- Validation results --- */
.validation-result {
    text-align: center;
    padding: 30px;
    margin: 30px;
    border-radius: 15px;
    animation: slideIn 0.5s;
}

@keyframes slideIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

.validation-result.valid {
    background: #d4edda;
    border: 3px solid #28a745;
}

.validation-result.invalid {
    background: #f8d7da;
    border: 3px solid #dc3545;
}

.validation-icon {
    font-size: 4em;
    margin-bottom: 15px;
}

.validation-message {
    font-size: 1.2em;
    font-weight: bold;
    color: #495057;
}

/* --- Output selector --- */
.output-selector {
    display: flex;
    justify-content: center;
    gap: 15px;
    padding: 20px 30px;
    background: #f8f9fa;
}

.btn-output {
    padding: 12px 30px;
    border: 2px solid #28a745;
    background: white;
    color: #28a745;
    border-radius: 25px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
}

.btn-output:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(40, 167, 69, 0.3);
}

.btn-output.active {
    background: #28a745;
    color: white;
}

/* --- Rock output --- */
.rock-output {
    padding: 30px;
    background: #f8f9fa;
    margin: 30px;
    border-radius: 15px;
    border: 2px solid #28a745;
    animation: fadeIn 0.5s;
}

.rock-output h2 {
    color: #28a745;
    margin-bottom: 20px;
}

#outputContent {
    background: white;
    padding: 20px;
    border-radius: 10px;
}

.output-item {
    padding: 12px;
    margin-bottom: 10px;
    background: #e9ecef;
    border-radius: 8px;
    border-left: 4px solid #667eea;
}

.output-item strong {
    color: #495057;
    display: inline-block;
    min-width: 200px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .container { margin: 10px; }

    header h1 { font-size: 1.5em; }

    .form-selector,
    .output-selector {
        flex-direction: column;
    }

    .btn-form,
    .btn-output {
        width: 100%;
    }
    /* Reglas nuevas para cambiar el formulario */
    #formExtendida {
        display: none;
    }
    #formReducida {
        display: block;
    }
}

.form-selector {
    display: none;
}

#formExtendida {
    display: block;
}
#formReducida {
    display: none;
}