/* ===== ESTILOS DEFINITIVOS ===== */
.itv-container {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    padding: 30px;
    max-width: 500px;
    margin: 20px auto;
    font-family: 'Segoe UI', system-ui, sans-serif;
}

.itv-header h2 {
    color: #2c3e50;
    font-size: 1.8rem;
    margin: 0 0 10px;
}

.itv-header p {
    color: #7f8c8d;
    margin: 0 0 25px;
}

.itv-reminder {
    background: #f8f9fa;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 15px;
    margin: 0 0 25px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.reminder-icon {
    font-size: 1.8rem;
}

.itv-form input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 16px;
}

.itv-form input:focus {
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.required-tag, .optional-tag {
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    margin-left: 8px;
}

.required-tag {
    background: #e74c3c;
    color: white;
}

.optional-tag {
    background: #27ae60;
    color: white;
}

.itv-button {
    background: #3498db;
    color: white !important;
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.3s;
}

.itv-button:hover {
    background: #2980b9;
}

.itv-result .success {
    background: #d4edda;
    color: #155724;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
}

.itv-result .error {
    background: #f8d7da;
    color: #721c24;
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
}